19 files changed, 5397 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..08d66342
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,8 @@
+# Python object files
+*.py[cd]
+MANIFEST
+/build
+/dist
+# Vim swap files
+*.swp
+/doc
diff --git a/libpathod/__init__.py b/libpathod/__init__.py
new file mode 100644
index 00000000..e841a6ab
--- /dev/null
+++ b/libpathod/__init__.py
@@ -0,0 +1,23 @@
+from tornado import web, template
+import handlers, utils
+
+class PathodApp(web.Application):
+    def __init__(self, *args, **kwargs):
+        self.templates = template.Loader(utils.data.path("templates"))
+        web.Application.__init__(self, *args, **kwargs)
+
+
+def application(**settings):
+    return PathodApp(
+                [
+                    (r"/", handlers.Index),
+                    (r"/log", handlers.Log),
+                    (r"/help", handlers.Help),
+                    (r"/preview", handlers.Preview),
+                    (r"/p/.*", handlers.Pathod, settings),
+                ],
+                debug=True,
+                static_path = utils.data.path("static"),
+                template_path = utils.data.path("templates"),
+           )
+
diff --git a/libpathod/contrib/__init__.py b/libpathod/contrib/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/libpathod/contrib/__init__.py
diff --git a/libpathod/contrib/pyparsing.py b/libpathod/contrib/pyparsing.py
new file mode 100644
index 00000000..9be97dc2
--- /dev/null
+++ b/libpathod/contrib/pyparsing.py
@@ -0,0 +1,3749 @@
+# module pyparsing.py
+#
+# Copyright (c) 2003-2011  Paul T. McGuire
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+#from __future__ import generators
+
+__doc__ = \
+"""
+pyparsing module - Classes and methods to define and execute parsing grammars
+
+The pyparsing module is an alternative approach to creating and executing simple grammars,
+vs. the traditional lex/yacc approach, or the use of regular expressions.  With pyparsing, you
+don't need to learn a new syntax for defining grammars or matching expressions - the parsing module
+provides a library of classes that you use to construct the grammar directly in Python.
+
+Here is a program to parse "Hello, World!" (or any greeting of the form C{"<salutation>, <addressee>!"})::
+
+    from pyparsing import Word, alphas
+
+    # define grammar of a greeting
+    greet = Word( alphas ) + "," + Word( alphas ) + "!"
+
+    hello = "Hello, World!"
+    print hello, "->", greet.parseString( hello )
+
+The program outputs the following::
+
+    Hello, World! -> ['Hello', ',', 'World', '!']
+
+The Python representation of the grammar is quite readable, owing to the self-explanatory
+class names, and the use of '+', '|' and '^' operators.
+
+The parsed results returned from C{parseString()} can be accessed as a nested list, a dictionary, or an
+object with named attributes.
+
+The pyparsing module handles some of the problems that are typically vexing when writing text parsers:
+ - extra or missing whitespace (the above program will also handle "Hello,World!", "Hello  ,  World  !", etc.)
+ - quoted strings
+ - embedded comments
+"""
+
+__version__ = "1.5.6"
+__versionTime__ = "26 June 2011 10:53"
+__author__ = "Paul McGuire <ptmcg@users.sourceforge.net>"
+
+import string
+from weakref import ref as wkref
+import copy
+import sys
+import warnings
+import re
+import sre_constants
+#~ sys.stderr.write( "testing pyparsing module, version %s, %s\n" % (__version__,__versionTime__ ) )
+
+__all__ = [
+'And', 'CaselessKeyword', 'CaselessLiteral', 'CharsNotIn', 'Combine', 'Dict', 'Each', 'Empty',
+'FollowedBy', 'Forward', 'GoToColumn', 'Group', 'Keyword', 'LineEnd', 'LineStart', 'Literal',
+'MatchFirst', 'NoMatch', 'NotAny', 'OneOrMore', 'OnlyOnce', 'Optional', 'Or',
+'ParseBaseException', 'ParseElementEnhance', 'ParseException', 'ParseExpression', 'ParseFatalException',
+'ParseResults', 'ParseSyntaxException', 'ParserElement', 'QuotedString', 'RecursiveGrammarException',
+'Regex', 'SkipTo', 'StringEnd', 'StringStart', 'Suppress', 'Token', 'TokenConverter', 'Upcase',
+'White', 'Word', 'WordEnd', 'WordStart', 'ZeroOrMore',
+'alphanums', 'alphas', 'alphas8bit', 'anyCloseTag', 'anyOpenTag', 'cStyleComment', 'col',
+'commaSeparatedList', 'commonHTMLEntity', 'countedArray', 'cppStyleComment', 'dblQuotedString',
+'dblSlashComment', 'delimitedList', 'dictOf', 'downcaseTokens', 'empty', 'getTokensEndLoc', 'hexnums',
+'htmlComment', 'javaStyleComment', 'keepOriginalText', 'line', 'lineEnd', 'lineStart', 'lineno',
+'makeHTMLTags', 'makeXMLTags', 'matchOnlyAtCol', 'matchPreviousExpr', 'matchPreviousLiteral',
+'nestedExpr', 'nullDebugAction', 'nums', 'oneOf', 'opAssoc', 'operatorPrecedence', 'printables',
+'punc8bit', 'pythonStyleComment', 'quotedString', 'removeQuotes', 'replaceHTMLEntity', 
+'replaceWith', 'restOfLine', 'sglQuotedString', 'srange', 'stringEnd',
+'stringStart', 'traceParseAction', 'unicodeString', 'upcaseTokens', 'withAttribute',
+'indentedBlock', 'originalTextFor',
+]
+
+"""
+Detect if we are running version 3.X and make appropriate changes
+Robert A. Clark
+"""
+_PY3K = sys.version_info[0] > 2
+if _PY3K:
+    _MAX_INT = sys.maxsize
+    basestring = str
+    unichr = chr
+    _ustr = str
+    alphas = string.ascii_lowercase + string.ascii_uppercase
+else:
+    _MAX_INT = sys.maxint
+    range = xrange
+    set = lambda s : dict( [(c,0) for c in s] )
+    alphas = string.lowercase + string.uppercase
+
+    def _ustr(obj):
+        """Drop-in replacement for str(obj) that tries to be Unicode friendly. It first tries
+           str(obj). If that fails with a UnicodeEncodeError, then it tries unicode(obj). It
+           then < returns the unicode object | encodes it with the default encoding | ... >.
+        """
+        if isinstance(obj,unicode):
+            return obj
+
+        try:
+            # If this works, then _ustr(obj) has the same behaviour as str(obj), so
+            # it won't break any existing code.
+            return str(obj)
+
+        except UnicodeEncodeError:
+            # The Python docs (http://docs.python.org/ref/customization.html#l2h-182)
+            # state that "The return value must be a string object". However, does a
+            # unicode object (being a subclass of basestring) count as a "string
+            # object"?
+            # If so, then return a unicode object:
+            return unicode(obj)
+            # Else encode it... but how? There are many choices... :)
+            # Replace unprintables with escape codes?
+            #return unicode(obj).encode(sys.getdefaultencoding(), 'backslashreplace_errors')
+            # Replace unprintables with question marks?
+            #return unicode(obj).encode(sys.getdefaultencoding(), 'replace')
+            # ...
+            
+    alphas = string.lowercase + string.uppercase
+
+# build list of single arg builtins, tolerant of Python version, that can be used as parse actions
+singleArgBuiltins = []
+import __builtin__
+for fname in "sum len enumerate sorted reversed list tuple set any all".split():
+    try:
+        singleArgBuiltins.append(getattr(__builtin__,fname))
+    except AttributeError:
+        continue
+
+def _xml_escape(data):
+    """Escape &, <, >, ", ', etc. in a string of data."""
+
+    # ampersand must be replaced first
+    from_symbols = '&><"\''
+    to_symbols = ['&'+s+';' for s in "amp gt lt quot apos".split()]
+    for from_,to_ in zip(from_symbols, to_symbols):
+        data = data.replace(from_, to_)
+    return data
+
+class _Constants(object):
+    pass
+
+nums       = string.digits
+hexnums    = nums + "ABCDEFabcdef"
+alphanums  = alphas + nums
+_bslash    = chr(92)
+printables = "".join( [ c for c in string.printable if c not in string.whitespace ] )
+
+class ParseBaseException(Exception):
+    """base exception class for all parsing runtime exceptions"""
+    # Performance tuning: we construct a *lot* of these, so keep this
+    # constructor as small and fast as possible
+    def __init__( self, pstr, loc=0, msg=None, elem=None ):
+        self.loc = loc
+        if msg is None:
+            self.msg = pstr
+            self.pstr = ""
+        else:
+            self.msg = msg
+            self.pstr = pstr
+        self.parserElement = elem
+
+    def __getattr__( self, aname ):
+        """supported attributes by name are:
+            - lineno - returns the line number of the exception text
+            - col - returns the column number of the exception text
+            - line - returns the line containing the exception text
+        """
+        if( aname == "lineno" ):
+            return lineno( self.loc, self.pstr )
+        elif( aname in ("col", "column") ):
+            return col( self.loc, self.pstr )
+        elif( aname == "line" ):
+            return line( self.loc, self.pstr )
+        else:
+            raise AttributeError(aname)
+
+    def __str__( self ):
+        return "%s (at char %d), (line:%d, col:%d)" % \
+                ( self.msg, self.loc, self.lineno, self.column )
+    def __repr__( self ):
+        return _ustr(self)
+    def markInputline( self, markerString = ">!<" ):
+        """Extracts the exception line from the input string, and marks
+           the location of the exception with a special symbol.
+        """
+        line_str = self.line
+        line_column = self.column - 1
+        if markerString:
+            line_str = "".join( [line_str[:line_column],
+                                markerString, line_str[line_column:]])
+        return line_str.strip()
+    def __dir__(self):
+        return "loc msg pstr parserElement lineno col line " \
+               "markInputLine __str__ __repr__".split()
+
+class ParseException(ParseBaseException):
+    """exception thrown when parse expressions don't match class;
+       supported attributes by name are:
+        - lineno - returns the line number of the exception text
+        - col - returns the column number of the exception text
+        - line - returns the line containing the exception text
+    """
+    pass
+
+class ParseFatalException(ParseBaseException):
+    """user-throwable exception thrown when inconsistent parse content
+       is found; stops all parsing immediately"""
+    pass
+
+class ParseSyntaxException(ParseFatalException):
+    """just like C{ParseFatalException}, but thrown internally when an
+       C{ErrorStop} ('-' operator) indicates that parsing is to stop immediately because
+       an unbacktrackable syntax error has been found"""
+    def __init__(self, pe):
+        super(ParseSyntaxException, self).__init__(
+                                    pe.pstr, pe.loc, pe.msg, pe.parserElement)
+
+#~ class ReparseException(ParseBaseException):
+    #~ """Experimental class - parse actions can raise this exception to cause
+       #~ pyparsing to reparse the input string:
+        #~ - with a modified input string, and/or
+        #~ - with a modified start location
+       #~ Set the values of the ReparseException in the constructor, and raise the
+       #~ exception in a parse action to cause pyparsing to use the new string/location.
+       #~ Setting the values as None causes no change to be made.
+       #~ """
+    #~ def __init_( self, newstring, restartLoc ):
+        #~ self.newParseText = newstring
+        #~ self.reparseLoc = restartLoc
+
+class RecursiveGrammarException(Exception):
+    """exception thrown by C{validate()} if the grammar could be improperly recursive"""
+    def __init__( self, parseElementList ):
+        self.parseElementTrace = parseElementList
+
+    def __str__( self ):
+        return "RecursiveGrammarException: %s" % self.parseElementTrace
+
+class _ParseResultsWithOffset(object):
+    def __init__(self,p1,p2):
+        self.tup = (p1,p2)
+    def __getitem__(self,i):
+        return self.tup[i]
+    def __repr__(self):
+        return repr(self.tup)
+    def setOffset(self,i):
+        self.tup = (self.tup[0],i)
+
+class ParseResults(object):
+    """Structured parse results, to provide multiple means of access to the parsed data:
+       - as a list (C{len(results)})
+       - by list index (C{results[0], results[1]}, etc.)
+       - by attribute (C{results.<resultsName>})
+       """
+    #~ __slots__ = ( "__toklist", "__tokdict", "__doinit", "__name", "__parent", "__accumNames", "__weakref__" )
+    def __new__(cls, toklist, name=None, asList=True, modal=True ):
+        if isinstance(toklist, cls):
+            return toklist
+        retobj = object.__new__(cls)
+        retobj.__doinit = True
+        return retobj
+
+    # Performance tuning: we construct a *lot* of these, so keep this
+    # constructor as small and fast as possible
+    def __init__( self, toklist, name=None, asList=True, modal=True, isinstance=isinstance ):
+        if self.__doinit:
+            self.__doinit = False
+            self.__name = None
+            self.__parent = None
+            self.__accumNames = {}
+            if isinstance(toklist, list):
+                self.__toklist = toklist[:]
+            else:
+                self.__toklist = [toklist]
+            self.__tokdict = dict()
+
+        if name is not None and name:
+            if not modal:
+                self.__accumNames[name] = 0
+            if isinstance(name,int):
+                name = _ustr(name) # will always return a str, but use _ustr for consistency
+            self.__name = name
+            if not toklist in (None,'',[]):
+                if isinstance(toklist,basestring):
+                    toklist = [ toklist ]
+                if asList:
+                    if isinstance(toklist,ParseResults):
+                        self[name] = _ParseResultsWithOffset(toklist.copy(),0)
+                    else:
+                        self[name] = _ParseResultsWithOffset(ParseResults(toklist[0]),0)
+                    self[name].__name = name
+                else:
+                    try:
+                        self[name] = toklist[0]
+                    except (KeyError,TypeError,IndexError):
+                        self[name] = toklist
+
+    def __getitem__( self, i ):
+        if isinstance( i, (int,slice) ):
+            return self.__toklist[i]
+        else:
+            if i not in self.__accumNames:
+                return self.__tokdict[i][-1][0]
+            else:
+                return ParseResults([ v[0] for v in self.__tokdict[i] ])
+
+    def __setitem__( self, k, v, isinstance=isinstance ):
+        if isinstance(v,_ParseResultsWithOffset):
+            self.__tokdict[k] = self.__tokdict.get(k,list()) + [v]
+            sub = v[0]
+        elif isinstance(k,int):
+            self.__toklist[k] = v
+            sub = v
+        else:
+            self.__tokdict[k] = self.__tokdict.get(k,list()) + [_ParseResultsWithOffset(v,0)]
+            sub = v
+        if isinstance(sub,ParseResults):
+            sub.__parent = wkref(self)
+
+    def __delitem__( self, i ):
+        if isinstance(i,(int,slice)):
+            mylen = len( self.__toklist )
+            del self.__toklist[i]
+
+            # convert int to slice
+            if isinstance(i, int):
+                if i < 0:
+                    i += mylen
+                i = slice(i, i+1)
+            # get removed indices
+            removed = list(range(*i.indices(mylen)))
+            removed.reverse()
+            # fixup indices in token dictionary
+            for name in self.__tokdict:
+                occurrences = self.__tokdict[name]
+                for j in removed:
+                    for k, (value, position) in enumerate(occurrences):
+                        occurrences[k] = _ParseResultsWithOffset(value, position - (position > j))
+        else:
+            del self.__tokdict[i]
+
+    def __contains__( self, k ):
+        return k in self.__tokdict
+
+    def __len__( self ): return len( self.__toklist )
+    def __bool__(self): return len( self.__toklist ) > 0
+    __nonzero__ = __bool__
+    def __iter__( self ): return iter( self.__toklist )
+    def __reversed__( self ): return iter( self.__toklist[::-1] )
+    def keys( self ):
+        """Returns all named result keys."""
+        return self.__tokdict.keys()
+
+    def pop( self, index=-1 ):
+        """Removes and returns item at specified index (default=last).
+           Will work with either numeric indices or dict-key indicies."""
+        ret = self[index]
+        del self[index]
+        return ret
+
+    def get(self, key, defaultValue=None):
+        """Returns named result matching the given key, or if there is no
+           such name, then returns the given C{defaultValue} or C{None} if no
+           C{defaultValue} is specified."""
+        if key in self:
+            return self[key]
+        else:
+            return defaultValue
+
+    def insert( self, index, insStr ):
+        """Inserts new element at location index in the list of parsed tokens."""
+        self.__toklist.insert(index, insStr)
+        # fixup indices in token dictionary
+        for name in self.__tokdict:
+            occurrences = self.__tokdict[name]
+            for k, (value, position) in enumerate(occurrences):
+                occurrences[k] = _ParseResultsWithOffset(value, position + (position > index))
+
+    def items( self ):
+        """Returns all named result keys and values as a list of tuples."""
+        return [(k,self[k]) for k in self.__tokdict]
+
+    def values( self ):
+        """Returns all named result values."""
+        return [ v[-1][0] for v in self.__tokdict.values() ]
+
+    def __getattr__( self, name ):
+        if True: #name not in self.__slots__:
+            if name in self.__tokdict:
+                if name not in self.__accumNames:
+                    return self.__tokdict[name][-1][0]
+                else:
+                    return ParseResults([ v[0] for v in self.__tokdict[name] ])
+            else:
+                return ""
+        return None
+
+    def __add__( self, other ):
+        ret = self.copy()
+        ret += other
+        return ret
+
+    def __iadd__( self, other ):
+        if other.__tokdict:
+            offset = len(self.__toklist)
+            addoffset = ( lambda a: (a<0 and offset) or (a+offset) )
+            otheritems = other.__tokdict.items()
+            otherdictitems = [(k, _ParseResultsWithOffset(v[0],addoffset(v[1])) )
+                                for (k,vlist) in otheritems for v in vlist]
+            for k,v in otherdictitems:
+                self[k] = v
+                if isinstance(v[0],ParseResults):
+                    v[0].__parent = wkref(self)
+            
+        self.__toklist += other.__toklist
+        self.__accumNames.update( other.__accumNames )
+        return self
+
+    def __radd__(self, other):
+        if isinstance(other,int) and other == 0:
+            return self.copy()
+        
+    def __repr__( self ):
+        return "(%s, %s)" % ( repr( self.__toklist ), repr( self.__tokdict ) )
+
+    def __str__( self ):
+        out = "["
+        sep = ""
+        for i in self.__toklist:
+            if isinstance(i, ParseResults):
+                out += sep + _ustr(i)
+            else:
+                out += sep + repr(i)
+            sep = ", "
+        out += "]"
+        return out
+
+    def _asStringList( self, sep='' ):
+        out = []
+        for item in self.__toklist:
+            if out and sep:
+                out.append(sep)
+            if isinstance( item, ParseResults ):
+                out += item._asStringList()
+            else:
+                out.append( _ustr(item) )
+        return out
+
+    def asList( self ):
+        """Returns the parse results as a nested list of matching tokens, all converted to strings."""
+        out = []
+        for res in self.__toklist:
+            if isinstance(res,ParseResults):
+                out.append( res.asList() )
+            else:
+                out.append( res )
+        return out
+
+    def asDict( self ):
+        """Returns the named parse results as dictionary."""
+        return dict( self.items() )
+
+    def copy( self ):
+        """Returns a new copy of a C{ParseResults} object."""
+        ret = ParseResults( self.__toklist )
+        ret.__tokdict = self.__tokdict.copy()
+        ret.__parent = self.__parent
+        ret.__accumNames.update( self.__accumNames )
+        ret.__name = self.__name
+        return ret
+
+    def asXML( self, doctag=None, namedItemsOnly=False, indent="", formatted=True ):
+        """Returns the parse results as XML. Tags are created for tokens and lists that have defined results names."""
+        nl = "\n"
+        out = []
+        namedItems = dict( [ (v[1],k) for (k,vlist) in self.__tokdict.items()
+                                                            for v in vlist ] )
+        nextLevelIndent = indent + "  "
+
+        # collapse out indents if formatting is not desired
+        if not formatted:
+            indent = ""
+            nextLevelIndent = ""
+            nl = ""
+
+        selfTag = None
+        if doctag is not None:
+            selfTag = doctag
+        else:
+            if self.__name:
+                selfTag = self.__name
+
+        if not selfTag:
+            if namedItemsOnly:
+                return ""
+            else:
+                selfTag = "ITEM"
+
+        out += [ nl, indent, "<", selfTag, ">" ]
+
+        worklist = self.__toklist
+        for i,res in enumerate(worklist):
+            if isinstance(res,ParseResults):
+                if i in namedItems:
+                    out += [ res.asXML(namedItems[i],
+                                        namedItemsOnly and doctag is None,
+                                        nextLevelIndent,
+                                        formatted)]
+                else:
+                    out += [ res.asXML(None,
+                                        namedItemsOnly and doctag is None,
+                                        nextLevelIndent,
+                                        formatted)]
+            else:
+                # individual token, see if there is a name for it
+                resTag = None
+                if i in namedItems:
+                    resTag = namedItems[i]
+                if not resTag:
+                    if namedItemsOnly:
+                        continue
+                    else:
+                        resTag = "ITEM"
+                xmlBodyText = _xml_escape(_ustr(res))
+                out += [ nl, nextLevelIndent, "<", resTag, ">",
+                                                xmlBodyText,
+                                                "</", resTag, ">" ]
+
+        out += [ nl, indent, "</", selfTag, ">" ]
+        return "".join(out)
+
+    def __lookup(self,sub):
+        for k,vlist in self.__tokdict.items():
+            for v,loc in vlist:
+                if sub is v:
+                    return k
+        return None
+
+    def getName(self):
+        """Returns the results name for this token expression."""
+        if self.__name:
+            return self.__name
+        elif self.__parent:
+            par = self.__parent()
+            if par:
+                return par.__lookup(self)
+            else:
+                return None
+        elif (len(self) == 1 and
+               len(self.__tokdict) == 1 and
+               self.__tokdict.values()[0][0][1] in (0,-1)):
+            return self.__tokdict.keys()[0]
+        else:
+            return None
+
+    def dump(self,indent='',depth=0):
+        """Diagnostic method for listing out the contents of a C{ParseResults}.
+           Accepts an optional C{indent} argument so that this string can be embedded
+           in a nested display of other data."""
+        out = []
+        out.append( indent+_ustr(self.asList()) )
+        keys = self.items()
+        keys.sort()
+        for k,v in keys:
+            if out:
+                out.append('\n')
+            out.append( "%s%s- %s: " % (indent,('  '*depth), k) )
+            if isinstance(v,ParseResults):
+                if v.keys():
+                    out.append( v.dump(indent,depth+1) )
+                else:
+                    out.append(_ustr(v))
+            else:
+                out.append(_ustr(v))
+        return "".join(out)
+
+    # add support for pickle protocol
+    def __getstate__(self):
+        return ( self.__toklist,
+                 ( self.__tokdict.copy(),
+                   self.__parent is not None and self.__parent() or None,
+                   self.__accumNames,
+                   self.__name ) )
+
+    def __setstate__(self,state):
+        self.__toklist = state[0]
+        (self.__tokdict,
+         par,
+         inAccumNames,
+         self.__name) = state[1]
+        self.__accumNames = {}
+        self.__accumNames.update(inAccumNames)
+        if par is not None:
+            self.__parent = wkref(par)
+        else:
+            self.__parent = None
+
+    def __dir__(self):
+        return dir(super(ParseResults,self)) + self.keys()
+
+def col (loc,strg):
+    """Returns current column within a string, counting newlines as line separators.
+   The first column is number 1.
+
+   Note: the default parsing behavior is to expand tabs in the input string
+   before starting the parsing process.  See L{I{ParserElement.parseString}<ParserElement.parseString>} for more information
+   on parsing strings containing <TAB>s, and suggested methods to maintain a
+   consistent view of the parsed string, the parse location, and line and column
+   positions within the parsed string.
+   """
+    return (loc<len(strg) and strg[loc] == '\n') and 1 or loc - strg.rfind("\n", 0, loc)
+
+def lineno(loc,strg):
+    """Returns current line number within a string, counting newlines as line separators.
+   The first line is number 1.
+
+   Note: the default parsing behavior is to expand tabs in the input string
+   before starting the parsing process.  See L{I{ParserElement.parseString}<ParserElement.parseString>} for more information
+   on parsing strings containing <TAB>s, and suggested methods to maintain a
+   consistent view of the parsed string, the parse location, and line and column
+   positions within the parsed string.
+   """
+    return strg.count("\n",0,loc) + 1
+
+def line( loc, strg ):
+    """Returns the line of text containing loc within a string, counting newlines as line separators.
+       """
+    lastCR = strg.rfind("\n", 0, loc)
+    nextCR = strg.find("\n", loc)
+    if nextCR >= 0:
+        return strg[lastCR+1:nextCR]
+    else:
+        return strg[lastCR+1:]
+
+def _defaultStartDebugAction( instring, loc, expr ):
+    print ("Match " + _ustr(expr) + " at loc " + _ustr(loc) + "(%d,%d)" % ( lineno(loc,instring), col(loc,instring) ))
+
+def _defaultSuccessDebugAction( instring, startloc, endloc, expr, toks ):
+    print ("Matched " + _ustr(expr) + " -> " + str(toks.asList()))
+
+def _defaultExceptionDebugAction( instring, loc, expr, exc ):
+    print ("Exception raised:" + _ustr(exc))
+
+def nullDebugAction(*args):
+    """'Do-nothing' debug action, to suppress debugging output during parsing."""
+    pass
+
+'decorator to trim function calls to match the arity of the target'
+if not _PY3K:
+    def _trim_arity(func, maxargs=2):
+        limit = [0]
+        def wrapper(*args):
+            while 1:
+                try:
+                    return func(*args[limit[0]:])
+                except TypeError:
+                    if limit[0] <= maxargs:
+                        limit[0] += 1
+                        continue
+                    raise
+        return wrapper
+else:
+    def _trim_arity(func, maxargs=2):
+        limit = maxargs
+        def wrapper(*args):
+            #~ nonlocal limit
+            while 1:
+                try:
+                    return func(*args[limit:])
+                except TypeError:
+                    if limit:
+                        limit -= 1
+                        continue
+                    raise
+        return wrapper
+    
+class ParserElement(object):
+    """Abstract base level parser element class."""
+    DEFAULT_WHITE_CHARS = " \n\t\r"
+    verbose_stacktrace = False
+
+    def setDefaultWhitespaceChars( chars ):
+        """Overrides the default whitespace chars
+        """
+        ParserElement.DEFAULT_WHITE_CHARS = chars
+    setDefaultWhitespaceChars = staticmethod(setDefaultWhitespaceChars)
+
+    def __init__( self, savelist=False ):
+        self.parseAction = list()
+        self.failAction = None
+        #~ self.name = "<unknown>"  # don't define self.name, let subclasses try/except upcall
+        self.strRepr = None
+        self.resultsName = None
+        self.saveAsList = savelist
+        self.skipWhitespace = True
+        self.whiteChars = ParserElement.DEFAULT_WHITE_CHARS
+        self.copyDefaultWhiteChars = True
+        self.mayReturnEmpty = False # used when checking for left-recursion
+        self.keepTabs = False
+        self.ignoreExprs = list()
+        self.debug = False
+        self.streamlined = False
+        self.mayIndexError = True # used to optimize exception handling for subclasses that don't advance parse index
+        self.errmsg = ""
+        self.modalResults = True # used to mark results names as modal (report only last) or cumulative (list all)
+        self.debugActions = ( None, None, None ) #custom debug actions
+        self.re = None
+        self.callPreparse = True # used to avoid redundant calls to preParse
+        self.callDuringTry = False
+
+    def copy( self ):
+        """Make a copy of this C{ParserElement}.  Useful for defining different parse actions
+           for the same parsing pattern, using copies of the original parse element."""
+        cpy = copy.copy( self )
+        cpy.parseAction = self.parseAction[:]
+        cpy.ignoreExprs = self.ignoreExprs[:]
+        if self.copyDefaultWhiteChars:
+            cpy.whiteChars = ParserElement.DEFAULT_WHITE_CHARS
+        return cpy
+
+    def setName( self, name ):
+        """Define name for this expression, for use in debugging."""
+        self.name = name
+        self.errmsg = "Expected " + self.name
+        if hasattr(self,"exception"):
+            self.exception.msg = self.errmsg
+        return self
+
+    def setResultsName( self, name, listAllMatches=False ):
+        """Define name for referencing matching tokens as a nested attribute
+           of the returned parse results.
+           NOTE: this returns a *copy* of the original C{ParserElement} object;
+           this is so that the client can define a basic element, such as an
+           integer, and reference it in multiple places with different names.
+           
+           You can also set results names using the abbreviated syntax,
+           C{expr("name")} in place of C{expr.setResultsName("name")} - 
+           see L{I{__call__}<__call__>}.
+        """
+        newself = self.copy()
+        if name.endswith("*"):
+            name = name[:-1]
+            listAllMatches=True
+        newself.resultsName = name
+        newself.modalResults = not listAllMatches
+        return newself
+
+    def setBreak(self,breakFlag = True):
+        """Method to invoke the Python pdb debugger when this element is
+           about to be parsed. Set C{breakFlag} to True to enable, False to
+           disable.
+        """
+        if breakFlag:
+            _parseMethod = self._parse
+            def breaker(instring, loc, doActions=True, callPreParse=True):
+                import pdb
+                pdb.set_trace()
+                return _parseMethod( instring, loc, doActions, callPreParse )
+            breaker._originalParseMethod = _parseMethod
+            self._parse = breaker
+        else:
+            if hasattr(self._parse,"_originalParseMethod"):
+                self._parse = self._parse._originalParseMethod
+        return self
+
+    def setParseAction( self, *fns, **kwargs ):
+        """Define action to perform when successfully matching parse element definition.
+           Parse action fn is a callable method with 0-3 arguments, called as C{fn(s,loc,toks)},
+           C{fn(loc,toks)}, C{fn(toks)}, or just C{fn()}, where:
+            - s   = the original string being parsed (see note below)
+            - loc = the location of the matching substring
+            - toks = a list of the matched tokens, packaged as a ParseResults object
+           If the functions in fns modify the tokens, they can return them as the return
+           value from fn, and the modified list of tokens will replace the original.
+           Otherwise, fn does not need to return any value.
+
+           Note: the default parsing behavior is to expand tabs in the input string
+           before starting the parsing process.  See L{I{parseString}<parseString>} for more information
+           on parsing strings containing <TAB>s, and suggested methods to maintain a
+           consistent view of the parsed string, the parse location, and line and column
+           positions within the parsed string.
+           """
+        self.parseAction = list(map(_trim_arity, list(fns)))
+        self.callDuringTry = ("callDuringTry" in kwargs and kwargs["callDuringTry"])
+        return self
+
+    def addParseAction( self, *fns, **kwargs ):
+        """Add parse action to expression's list of parse actions. See L{I{setParseAction}<setParseAction>}."""
+        self.parseAction += list(map(_trim_arity, list(fns)))
+        self.callDuringTry = self.callDuringTry or ("callDuringTry" in kwargs and kwargs["callDuringTry"])
+        return self
+
+    def setFailAction( self, fn ):
+        """Define action to perform if parsing fails at this expression.
+           Fail acton fn is a callable function that takes the arguments
+           C{fn(s,loc,expr,err)} where:
+            - s = string being parsed
+            - loc = location where expression match was attempted and failed
+            - expr = the parse expression that failed
+            - err = the exception thrown
+           The function returns no value.  It may throw C{ParseFatalException}
+           if it is desired to stop parsing immediately."""
+        self.failAction = fn
+        return self
+
+    def _skipIgnorables( self, instring, loc ):
+        exprsFound = True
+        while exprsFound:
+            exprsFound = False
+            for e in self.ignoreExprs:
+                try:
+                    while 1:
+                        loc,dummy = e._parse( instring, loc )
+                        exprsFound = True
+                except ParseException:
+                    pass
+        return loc
+
+    def preParse( self, instring, loc ):
+        if self.ignoreExprs:
+            loc = self._skipIgnorables( instring, loc )
+
+        if self.skipWhitespace:
+            wt = self.whiteChars
+            instrlen = len(instring)
+            while loc < instrlen and instring[loc] in wt:
+                loc += 1
+
+        return loc
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        return loc, []
+
+    def postParse( self, instring, loc, tokenlist ):
+        return tokenlist
+
+    #~ @profile
+    def _parseNoCache( self, instring, loc, doActions=True, callPreParse=True ):
+        debugging = ( self.debug ) #and doActions )
+
+        if debugging or self.failAction:
+            #~ print ("Match",self,"at loc",loc,"(%d,%d)" % ( lineno(loc,instring), col(loc,instring) ))
+            if (self.debugActions[0] ):
+                self.debugActions[0]( instring, loc, self )
+            if callPreParse and self.callPreparse:
+                preloc = self.preParse( instring, loc )
+            else:
+                preloc = loc
+            tokensStart = preloc
+            try:
+                try:
+                    loc,tokens = self.parseImpl( instring, preloc, doActions )
+                except IndexError:
+                    raise ParseException( instring, len(instring), self.errmsg, self )
+            except ParseBaseException:
+                #~ print ("Exception raised:", err)
+                err = None
+                if self.debugActions[2]:
+                    err = sys.exc_info()[1]
+                    self.debugActions[2]( instring, tokensStart, self, err )
+                if self.failAction:
+                    if err is None:
+                        err = sys.exc_info()[1]
+                    self.failAction( instring, tokensStart, self, err )
+                raise
+        else:
+            if callPreParse and self.callPreparse:
+                preloc = self.preParse( instring, loc )
+            else:
+                preloc = loc
+            tokensStart = preloc
+            if self.mayIndexError or loc >= len(instring):
+                try:
+                    loc,tokens = self.parseImpl( instring, preloc, doActions )
+                except IndexError:
+                    raise ParseException( instring, len(instring), self.errmsg, self )
+            else:
+                loc,tokens = self.parseImpl( instring, preloc, doActions )
+
+        tokens = self.postParse( instring, loc, tokens )
+
+        retTokens = ParseResults( tokens, self.resultsName, asList=self.saveAsList, modal=self.modalResults )
+        if self.parseAction and (doActions or self.callDuringTry):
+            if debugging:
+                try:
+                    for fn in self.parseAction:
+                        tokens = fn( instring, tokensStart, retTokens )
+                        if tokens is not None:
+                            retTokens = ParseResults( tokens,
+                                                      self.resultsName,
+                                                      asList=self.saveAsList and isinstance(tokens,(ParseResults,list)),
+                                                      modal=self.modalResults )
+                except ParseBaseException:
+                    #~ print "Exception raised in user parse action:", err
+                    if (self.debugActions[2] ):
+                        err = sys.exc_info()[1]
+                        self.debugActions[2]( instring, tokensStart, self, err )
+                    raise
+            else:
+                for fn in self.parseAction:
+                    tokens = fn( instring, tokensStart, retTokens )
+                    if tokens is not None:
+                        retTokens = ParseResults( tokens,
+                                                  self.resultsName,
+                                                  asList=self.saveAsList and isinstance(tokens,(ParseResults,list)),
+                                                  modal=self.modalResults )
+
+        if debugging:
+            #~ print ("Matched",self,"->",retTokens.asList())
+            if (self.debugActions[1] ):
+                self.debugActions[1]( instring, tokensStart, loc, self, retTokens )
+
+        return loc, retTokens
+
+    def tryParse( self, instring, loc ):
+        try:
+            return self._parse( instring, loc, doActions=False )[0]
+        except ParseFatalException:
+            raise ParseException( instring, loc, self.errmsg, self)
+
+    # this method gets repeatedly called during backtracking with the same arguments -
+    # we can cache these arguments and save ourselves the trouble of re-parsing the contained expression
+    def _parseCache( self, instring, loc, doActions=True, callPreParse=True ):
+        lookup = (self,instring,loc,callPreParse,doActions)
+        if lookup in ParserElement._exprArgCache:
+            value = ParserElement._exprArgCache[ lookup ]
+            if isinstance(value, Exception):
+                raise value
+            return (value[0],value[1].copy())
+        else:
+            try:
+                value = self._parseNoCache( instring, loc, doActions, callPreParse )
+                ParserElement._exprArgCache[ lookup ] = (value[0],value[1].copy())
+                return value
+            except ParseBaseException:
+                pe = sys.exc_info()[1]
+                ParserElement._exprArgCache[ lookup ] = pe
+                raise
+
+    _parse = _parseNoCache
+
+    # argument cache for optimizing repeated calls when backtracking through recursive expressions
+    _exprArgCache = {}
+    def resetCache():
+        ParserElement._exprArgCache.clear()
+    resetCache = staticmethod(resetCache)
+
+    _packratEnabled = False
+    def enablePackrat():
+        """Enables "packrat" parsing, which adds memoizing to the parsing logic.
+           Repeated parse attempts at the same string location (which happens
+           often in many complex grammars) can immediately return a cached value,
+           instead of re-executing parsing/validating code.  Memoizing is done of
+           both valid results and parsing exceptions.
+
+           This speedup may break existing programs that use parse actions that
+           have side-effects.  For this reason, packrat parsing is disabled when
+           you first import pyparsing.  To activate the packrat feature, your
+           program must call the class method C{ParserElement.enablePackrat()}.  If
+           your program uses C{psyco} to "compile as you go", you must call
+           C{enablePackrat} before calling C{psyco.full()}.  If you do not do this,
+           Python will crash.  For best results, call C{enablePackrat()} immediately
+           after importing pyparsing.
+        """
+        if not ParserElement._packratEnabled:
+            ParserElement._packratEnabled = True
+            ParserElement._parse = ParserElement._parseCache
+    enablePackrat = staticmethod(enablePackrat)
+
+    def parseString( self, instring, parseAll=False ):
+        """Execute the parse expression with the given string.
+           This is the main interface to the client code, once the complete
+           expression has been built.
+
+           If you want the grammar to require that the entire input string be
+           successfully parsed, then set C{parseAll} to True (equivalent to ending
+           the grammar with C{StringEnd()}).
+
+           Note: C{parseString} implicitly calls C{expandtabs()} on the input string,
+           in order to report proper column numbers in parse actions.
+           If the input string contains tabs and
+           the grammar uses parse actions that use the C{loc} argument to index into the
+           string being parsed, you can ensure you have a consistent view of the input
+           string by:
+            - calling C{parseWithTabs} on your grammar before calling C{parseString}
+              (see L{I{parseWithTabs}<parseWithTabs>})
+            - define your parse action using the full C{(s,loc,toks)} signature, and
+              reference the input string using the parse action's C{s} argument
+            - explictly expand the tabs in your input string before calling
+              C{parseString}
+        """
+        ParserElement.resetCache()
+        if not self.streamlined:
+            self.streamline()
+            #~ self.saveAsList = True
+        for e in self.ignoreExprs:
+            e.streamline()
+        if not self.keepTabs:
+            instring = instring.expandtabs()
+        try:
+            loc, tokens = self._parse( instring, 0 )
+            if parseAll:
+                loc = self.preParse( instring, loc )
+                se = Empty() + StringEnd()
+                se._parse( instring, loc )
+        except ParseBaseException:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                exc = sys.exc_info()[1]
+                raise exc
+        else:
+            return tokens
+
+    def scanString( self, instring, maxMatches=_MAX_INT, overlap=False ):
+        """Scan the input string for expression matches.  Each match will return the
+           matching tokens, start location, and end location.  May be called with optional
+           C{maxMatches} argument, to clip scanning after 'n' matches are found.  If
+           C{overlap} is specified, then overlapping matches will be reported.
+
+           Note that the start and end locations are reported relative to the string
+           being parsed.  See L{I{parseString}<parseString>} for more information on parsing
+           strings with embedded tabs."""
+        if not self.streamlined:
+            self.streamline()
+        for e in self.ignoreExprs:
+            e.streamline()
+
+        if not self.keepTabs:
+            instring = _ustr(instring).expandtabs()
+        instrlen = len(instring)
+        loc = 0
+        preparseFn = self.preParse
+        parseFn = self._parse
+        ParserElement.resetCache()
+        matches = 0
+        try:
+            while loc <= instrlen and matches < maxMatches:
+                try:
+                    preloc = preparseFn( instring, loc )
+                    nextLoc,tokens = parseFn( instring, preloc, callPreParse=False )
+                except ParseException:
+                    loc = preloc+1
+                else:
+                    if nextLoc > loc:
+                        matches += 1
+                        yield tokens, preloc, nextLoc
+                        if overlap:
+                            nextloc = preparseFn( instring, loc )
+                            if nextloc > loc:
+                                loc = nextLoc
+                            else:
+                                loc += 1
+                        else:
+                            loc = nextLoc
+                    else:
+                        loc = preloc+1
+        except ParseBaseException:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                exc = sys.exc_info()[1]
+                raise exc
+
+    def transformString( self, instring ):
+        """Extension to C{scanString}, to modify matching text with modified tokens that may
+           be returned from a parse action.  To use C{transformString}, define a grammar and
+           attach a parse action to it that modifies the returned token list.
+           Invoking C{transformString()} on a target string will then scan for matches,
+           and replace the matched text patterns according to the logic in the parse
+           action.  C{transformString()} returns the resulting transformed string."""
+        out = []
+        lastE = 0
+        # force preservation of <TAB>s, to minimize unwanted transformation of string, and to
+        # keep string locs straight between transformString and scanString
+        self.keepTabs = True
+        try:
+            for t,s,e in self.scanString( instring ):
+                out.append( instring[lastE:s] )
+                if t:
+                    if isinstance(t,ParseResults):
+                        out += t.asList()
+                    elif isinstance(t,list):
+                        out += t
+                    else:
+                        out.append(t)
+                lastE = e
+            out.append(instring[lastE:])
+            out = [o for o in out if o]
+            return "".join(map(_ustr,_flatten(out)))
+        except ParseBaseException:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                exc = sys.exc_info()[1]
+                raise exc
+
+    def searchString( self, instring, maxMatches=_MAX_INT ):
+        """Another extension to C{scanString}, simplifying the access to the tokens found
+           to match the given parse expression.  May be called with optional
+           C{maxMatches} argument, to clip searching after 'n' matches are found.
+        """
+        try:
+            return ParseResults([ t for t,s,e in self.scanString( instring, maxMatches ) ])
+        except ParseBaseException:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                exc = sys.exc_info()[1]
+                raise exc
+
+    def __add__(self, other ):
+        """Implementation of + operator - returns And"""
+        if isinstance( other, basestring ):
+            other = Literal( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return And( [ self, other ] )
+
+    def __radd__(self, other ):
+        """Implementation of + operator when left operand is not a C{ParserElement}"""
+        if isinstance( other, basestring ):
+            other = Literal( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other + self
+
+    def __sub__(self, other):
+        """Implementation of - operator, returns C{And} with error stop"""
+        if isinstance( other, basestring ):
+            other = Literal( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return And( [ self, And._ErrorStop(), other ] )
+
+    def __rsub__(self, other ):
+        """Implementation of - operator when left operand is not a C{ParserElement}"""
+        if isinstance( other, basestring ):
+            other = Literal( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other - self
+
+    def __mul__(self,other):
+        """Implementation of * operator, allows use of C{expr * 3} in place of
+           C{expr + expr + expr}.  Expressions may also me multiplied by a 2-integer
+           tuple, similar to C{{min,max}} multipliers in regular expressions.  Tuples
+           may also include C{None} as in:
+            - C{expr*(n,None)} or C{expr*(n,)} is equivalent
+              to C{expr*n + ZeroOrMore(expr)}
+              (read as "at least n instances of C{expr}")
+            - C{expr*(None,n)} is equivalent to C{expr*(0,n)}
+              (read as "0 to n instances of C{expr}")
+            - C{expr*(None,None)} is equivalent to C{ZeroOrMore(expr)}
+            - C{expr*(1,None)} is equivalent to C{OneOrMore(expr)}
+
+           Note that C{expr*(None,n)} does not raise an exception if
+           more than n exprs exist in the input stream; that is,
+           C{expr*(None,n)} does not enforce a maximum number of expr
+           occurrences.  If this behavior is desired, then write
+           C{expr*(None,n) + ~expr}
+
+        """
+        if isinstance(other,int):
+            minElements, optElements = other,0
+        elif isinstance(other,tuple):
+            other = (other + (None, None))[:2]
+            if other[0] is None:
+                other = (0, other[1])
+            if isinstance(other[0],int) and other[1] is None:
+                if other[0] == 0:
+                    return ZeroOrMore(self)
+                if other[0] == 1:
+                    return OneOrMore(self)
+                else:
+                    return self*other[0] + ZeroOrMore(self)
+            elif isinstance(other[0],int) and isinstance(other[1],int):
+                minElements, optElements = other
+                optElements -= minElements
+            else:
+                raise TypeError("cannot multiply 'ParserElement' and ('%s','%s') objects", type(other[0]),type(other[1]))
+        else:
+            raise TypeError("cannot multiply 'ParserElement' and '%s' objects", type(other))
+
+        if minElements < 0:
+            raise ValueError("cannot multiply ParserElement by negative value")
+        if optElements < 0:
+            raise ValueError("second tuple value must be greater or equal to first tuple value")
+        if minElements == optElements == 0:
+            raise ValueError("cannot multiply ParserElement by 0 or (0,0)")
+
+        if (optElements):
+            def makeOptionalList(n):
+                if n>1:
+                    return Optional(self + makeOptionalList(n-1))
+                else:
+                    return Optional(self)
+            if minElements:
+                if minElements == 1:
+                    ret = self + makeOptionalList(optElements)
+                else:
+                    ret = And([self]*minElements) + makeOptionalList(optElements)
+            else:
+                ret = makeOptionalList(optElements)
+        else:
+            if minElements == 1:
+                ret = self
+            else:
+                ret = And([self]*minElements)
+        return ret
+
+    def __rmul__(self, other):
+        return self.__mul__(other)
+
+    def __or__(self, other ):
+        """Implementation of | operator - returns C{MatchFirst}"""
+        if isinstance( other, basestring ):
+            other = Literal( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return MatchFirst( [ self, other ] )
+
+    def __ror__(self, other ):
+        """Implementation of | operator when left operand is not a C{ParserElement}"""
+        if isinstance( other, basestring ):
+            other = Literal( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other | self
+
+    def __xor__(self, other ):
+        """Implementation of ^ operator - returns C{Or}"""
+        if isinstance( other, basestring ):
+            other = Literal( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return Or( [ self, other ] )
+
+    def __rxor__(self, other ):
+        """Implementation of ^ operator when left operand is not a C{ParserElement}"""
+        if isinstance( other, basestring ):
+            other = Literal( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other ^ self
+
+    def __and__(self, other ):
+        """Implementation of & operator - returns C{Each}"""
+        if isinstance( other, basestring ):
+            other = Literal( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return Each( [ self, other ] )
+
+    def __rand__(self, other ):
+        """Implementation of & operator when left operand is not a C{ParserElement}"""
+        if isinstance( other, basestring ):
+            other = Literal( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other & self
+
+    def __invert__( self ):
+        """Implementation of ~ operator - returns C{NotAny}"""
+        return NotAny( self )
+
+    def __call__(self, name):
+        """Shortcut for C{setResultsName}, with C{listAllMatches=default}::
+             userdata = Word(alphas).setResultsName("name") + Word(nums+"-").setResultsName("socsecno")
+           could be written as::
+             userdata = Word(alphas)("name") + Word(nums+"-")("socsecno")
+             
+           If C{name} is given with a trailing C{'*'} character, then C{listAllMatches} will be
+           passed as C{True}.
+           """
+        return self.setResultsName(name)
+
+    def suppress( self ):
+        """Suppresses the output of this C{ParserElement}; useful to keep punctuation from
+           cluttering up returned output.
+        """
+        return Suppress( self )
+
+    def leaveWhitespace( self ):
+        """Disables the skipping of whitespace before matching the characters in the
+           C{ParserElement}'s defined pattern.  This is normally only used internally by
+           the pyparsing module, but may be needed in some whitespace-sensitive grammars.
+        """
+        self.skipWhitespace = False
+        return self
+
+    def setWhitespaceChars( self, chars ):
+        """Overrides the default whitespace chars
+        """
+        self.skipWhitespace = True
+        self.whiteChars = chars
+        self.copyDefaultWhiteChars = False
+        return self
+
+    def parseWithTabs( self ):
+        """Overrides default behavior to expand C{<TAB>}s to spaces before parsing the input string.
+           Must be called before C{parseString} when the input grammar contains elements that
+           match C{<TAB>} characters."""
+        self.keepTabs = True
+        return self
+
+    def ignore( self, other ):
+        """Define expression to be ignored (e.g., comments) while doing pattern
+           matching; may be called repeatedly, to define multiple comment or other
+           ignorable patterns.
+        """
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                self.ignoreExprs.append( other.copy() )
+        else:
+            self.ignoreExprs.append( Suppress( other.copy() ) )
+        return self
+
+    def setDebugActions( self, startAction, successAction, exceptionAction ):
+        """Enable display of debugging messages while doing pattern matching."""
+        self.debugActions = (startAction or _defaultStartDebugAction,
+                             successAction or _defaultSuccessDebugAction,
+                             exceptionAction or _defaultExceptionDebugAction)
+        self.debug = True
+        return self
+
+    def setDebug( self, flag=True ):
+        """Enable display of debugging messages while doing pattern matching.
+           Set C{flag} to True to enable, False to disable."""
+        if flag:
+            self.setDebugActions( _defaultStartDebugAction, _defaultSuccessDebugAction, _defaultExceptionDebugAction )
+        else:
+            self.debug = False
+        return self
+
+    def __str__( self ):
+        return self.name
+
+    def __repr__( self ):
+        return _ustr(self)
+
+    def streamline( self ):
+        self.streamlined = True
+        self.strRepr = None
+        return self
+
+    def checkRecursion( self, parseElementList ):
+        pass
+
+    def validate( self, validateTrace=[] ):
+        """Check defined expressions for valid structure, check for infinite recursive definitions."""
+        self.checkRecursion( [] )
+
+    def parseFile( self, file_or_filename, parseAll=False ):
+        """Execute the parse expression on the given file or filename.
+           If a filename is specified (instead of a file object),
+           the entire file is opened, read, and closed before parsing.
+        """
+        try:
+            file_contents = file_or_filename.read()
+        except AttributeError:
+            f = open(file_or_filename, "rb")
+            file_contents = f.read()
+            f.close()
+        try:
+            return self.parseString(file_contents, parseAll)
+        except ParseBaseException:
+            # catch and re-raise exception from here, clears out pyparsing internal stack trace
+            exc = sys.exc_info()[1]
+            raise exc
+
+    def getException(self):
+        return ParseException("",0,self.errmsg,self)
+
+    def __getattr__(self,aname):
+        if aname == "myException":
+            self.myException = ret = self.getException();
+            return ret;
+        else:
+            raise AttributeError("no such attribute " + aname)
+
+    def __eq__(self,other):
+        if isinstance(other, ParserElement):
+            return self is other or self.__dict__ == other.__dict__
+        elif isinstance(other, basestring):
+            try:
+                self.parseString(_ustr(other), parseAll=True)
+                return True
+            except ParseBaseException:
+                return False
+        else:
+            return super(ParserElement,self)==other
+
+    def __ne__(self,other):
+        return not (self == other)
+
+    def __hash__(self):
+        return hash(id(self))
+
+    def __req__(self,other):
+        return self == other
+
+    def __rne__(self,other):
+        return not (self == other)
+
+
+class Token(ParserElement):
+    """Abstract C{ParserElement} subclass, for defining atomic matching patterns."""
+    def __init__( self ):
+        super(Token,self).__init__( savelist=False )
+
+    def setName(self, name):
+        s = super(Token,self).setName(name)
+        self.errmsg = "Expected " + self.name
+        return s
+
+
+class Empty(Token):
+    """An empty token, will always match."""
+    def __init__( self ):
+        super(Empty,self).__init__()
+        self.name = "Empty"
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+
+
+class NoMatch(Token):
+    """A token that will never match."""
+    def __init__( self ):
+        super(NoMatch,self).__init__()
+        self.name = "NoMatch"
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+        self.errmsg = "Unmatchable token"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        exc = self.myException
+        exc.loc = loc
+        exc.pstr = instring
+        raise exc
+
+
+class Literal(Token):
+    """Token to exactly match a specified string."""
+    def __init__( self, matchString ):
+        super(Literal,self).__init__()
+        self.match = matchString
+        self.matchLen = len(matchString)
+        try:
+            self.firstMatchChar = matchString[0]
+        except IndexError:
+            warnings.warn("null string passed to Literal; use Empty() instead",
+                            SyntaxWarning, stacklevel=2)
+            self.__class__ = Empty
+        self.name = '"%s"' % _ustr(self.match)
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = False
+        self.mayIndexError = False
+
+    # Performance tuning: this routine gets called a *lot*
+    # if this is a single character match string  and the first character matches,
+    # short-circuit as quickly as possible, and avoid calling startswith
+    #~ @profile
+    def parseImpl( self, instring, loc, doActions=True ):
+        if (instring[loc] == self.firstMatchChar and
+            (self.matchLen==1 or instring.startswith(self.match,loc)) ):
+            return loc+self.matchLen, self.match
+        #~ raise ParseException( instring, loc, self.errmsg )
+        exc = self.myException
+        exc.loc = loc
+        exc.pstr = instring
+        raise exc
+_L = Literal
+
+class Keyword(Token):
+    """Token to exactly match a specified string as a keyword, that is, it must be
+       immediately followed by a non-keyword character.  Compare with C{Literal}::
+         Literal("if") will match the leading C{'if'} in C{'ifAndOnlyIf'}.
+         Keyword("if") will not; it will only match the leading C{'if'} in C{'if x=1'}, or C{'if(y==2)'}
+       Accepts two optional constructor arguments in addition to the keyword string:
+       C{identChars} is a string of characters that would be valid identifier characters,
+       defaulting to all alphanumerics + "_" and "$"; C{caseless} allows case-insensitive
+       matching, default is C{False}.
+    """
+    DEFAULT_KEYWORD_CHARS = alphanums+"_$"
+
+    def __init__( self, matchString, identChars=DEFAULT_KEYWORD_CHARS, caseless=False ):
+        super(Keyword,self).__init__()
+        self.match = matchString
+        self.matchLen = len(matchString)
+        try:
+            self.firstMatchChar = matchString[0]
+        except IndexError:
+            warnings.warn("null string passed to Keyword; use Empty() instead",
+                            SyntaxWarning, stacklevel=2)
+        self.name = '"%s"' % self.match
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = False
+        self.mayIndexError = False
+        self.caseless = caseless
+        if caseless:
+            self.caselessmatch = matchString.upper()
+            identChars = identChars.upper()
+        self.identChars = set(identChars)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.caseless:
+            if ( (instring[ loc:loc+self.matchLen ].upper() == self.caselessmatch) and
+                 (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen].upper() not in self.identChars) and
+                 (loc == 0 or instring[loc-1].upper() not in self.identChars) ):
+                return loc+self.matchLen, self.match
+        else:
+            if (instring[loc] == self.firstMatchChar and
+                (self.matchLen==1 or instring.startswith(self.match,loc)) and
+                (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen] not in self.identChars) and
+                (loc == 0 or instring[loc-1] not in self.identChars) ):
+                return loc+self.matchLen, self.match
+        #~ raise ParseException( instring, loc, self.errmsg )
+        exc = self.myException
+        exc.loc = loc
+        exc.pstr = instring
+        raise exc
+
+    def copy(self):
+        c = super(Keyword,self).copy()
+        c.identChars = Keyword.DEFAULT_KEYWORD_CHARS
+        return c
+
+    def setDefaultKeywordChars( chars ):
+        """Overrides the default Keyword chars
+        """
+        Keyword.DEFAULT_KEYWORD_CHARS = chars
+    setDefaultKeywordChars = staticmethod(setDefaultKeywordChars)
+
+class CaselessLiteral(Literal):
+    """Token to match a specified string, ignoring case of letters.
+       Note: the matched results will always be in the case of the given
+       match string, NOT the case of the input text.
+    """
+    def __init__( self, matchString ):
+        super(CaselessLiteral,self).__init__( matchString.upper() )
+        # Preserve the defining literal.
+        self.returnString = matchString
+        self.name = "'%s'" % self.returnString
+        self.errmsg = "Expected " + self.name
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if instring[ loc:loc+self.matchLen ].upper() == self.match:
+            return loc+self.matchLen, self.returnString
+        #~ raise ParseException( instring, loc, self.errmsg )
+        exc = self.myException
+        exc.loc = loc
+        exc.pstr = instring
+        raise exc
+
+class CaselessKeyword(Keyword):
+    def __init__( self, matchString, identChars=Keyword.DEFAULT_KEYWORD_CHARS ):
+        super(CaselessKeyword,self).__init__( matchString, identChars, caseless=True )
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if ( (instring[ loc:loc+self.matchLen ].upper() == self.caselessmatch) and
+             (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen].upper() not in self.identChars) ):
+            return loc+self.matchLen, self.match
+        #~ raise ParseException( instring, loc, self.errmsg )
+        exc = self.myException
+        exc.loc = loc
+        exc.pstr = instring
+        raise exc
+
+class Word(Token):
+    """Token for matching words composed of allowed character sets.
+       Defined with string containing all allowed initial characters,
+       an optional string containing allowed body characters (if omitted,
+       defaults to the initial character set), and an optional minimum,
+       maximum, and/or exact length.  The default value for C{min} is 1 (a
+       minimum value < 1 is not valid); the default values for C{max} and C{exact}
+       are 0, meaning no maximum or exact length restriction. An optional
+       C{exclude} parameter can list characters that might be found in 
+       the input C{bodyChars} string; useful to define a word of all printables
+       except for one or two characters, for instance.
+    """
+    def __init__( self, initChars, bodyChars=None, min=1, max=0, exact=0, asKeyword=False, excludeChars=None ):
+        super(Word,self).__init__()
+        if excludeChars:
+            initChars = ''.join([c for c in initChars if c not in excludeChars])
+            if bodyChars:
+                bodyChars = ''.join([c for c in bodyChars if c not in excludeChars])
+        self.initCharsOrig = initChars
+        self.initChars = set(initChars)
+        if bodyChars :
+            self.bodyCharsOrig = bodyChars
+            self.bodyChars = set(bodyChars)
+        else:
+            self.bodyCharsOrig = initChars
+            self.bodyChars = set(initChars)
+
+        self.maxSpecified = max > 0
+
+        if min < 1:
+            raise ValueError("cannot specify a minimum length < 1; use Optional(Word()) if zero-length word is permitted")
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.asKeyword = asKeyword
+
+        if ' ' not in self.initCharsOrig+self.bodyCharsOrig and (min==1 and max==0 and exact==0):
+            if self.bodyCharsOrig == self.initCharsOrig:
+                self.reString = "[%s]+" % _escapeRegexRangeChars(self.initCharsOrig)
+            elif len(self.bodyCharsOrig) == 1:
+                self.reString = "%s[%s]*" % \
+                                      (re.escape(self.initCharsOrig),
+                                      _escapeRegexRangeChars(self.bodyCharsOrig),)
+            else:
+                self.reString = "[%s][%s]*" % \
+                                      (_escapeRegexRangeChars(self.initCharsOrig),
+                                      _escapeRegexRangeChars(self.bodyCharsOrig),)
+            if self.asKeyword:
+                self.reString = r"\b"+self.reString+r"\b"
+            try:
+                self.re = re.compile( self.reString )
+            except:
+                self.re = None
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.re:
+            result = self.re.match(instring,loc)
+            if not result:
+                exc = self.myException
+                exc.loc = loc
+                exc.pstr = instring
+                raise exc
+
+            loc = result.end()
+            return loc, result.group()
+
+        if not(instring[ loc ] in self.initChars):
+            #~ raise ParseException( instring, loc, self.errmsg )
+            exc = self.myException
+            exc.loc = loc
+            exc.pstr = instring
+            raise exc
+        start = loc
+        loc += 1
+        instrlen = len(instring)
+        bodychars = self.bodyChars
+        maxloc = start + self.maxLen
+        maxloc = min( maxloc, instrlen )
+        while loc < maxloc and instring[loc] in bodychars:
+            loc += 1
+
+        throwException = False
+        if loc - start < self.minLen:
+            throwException = True
+        if self.maxSpecified and loc < instrlen and instring[loc] in bodychars:
+            throwException = True
+        if self.asKeyword:
+            if (start>0 and instring[start-1] in bodychars) or (loc<instrlen and instring[loc] in bodychars):
+                throwException = True
+
+        if throwException:
+            #~ raise ParseException( instring, loc, self.errmsg )
+            exc = self.myException
+            exc.loc = loc
+            exc.pstr = instring
+            raise exc
+
+        return loc, instring[start:loc]
+
+    def __str__( self ):
+        try:
+            return super(Word,self).__str__()
+        except:
+            pass
+
+
+        if self.strRepr is None:
+
+            def charsAsStr(s):
+                if len(s)>4:
+                    return s[:4]+"..."
+                else:
+                    return s
+
+            if ( self.initCharsOrig != self.bodyCharsOrig ):
+                self.strRepr = "W:(%s,%s)" % ( charsAsStr(self.initCharsOrig), charsAsStr(self.bodyCharsOrig) )
+            else:
+                self.strRepr = "W:(%s)" % charsAsStr(self.initCharsOrig)
+
+        return self.strRepr
+
+
+class Regex(Token):
+    """Token for matching strings that match a given regular expression.
+       Defined with string specifying the regular expression in a form recognized by the inbuilt Python re module.
+    """
+    compiledREtype = type(re.compile("[A-Z]"))
+    def __init__( self, pattern, flags=0):
+        """The parameters C{pattern} and C{flags} are passed to the C{re.compile()} function as-is. See the Python C{re} module for an explanation of the acceptable patterns and flags."""
+        super(Regex,self).__init__()
+
+        if isinstance(pattern, basestring):
+            if len(pattern) == 0:
+                warnings.warn("null string passed to Regex; use Empty() instead",
+                        SyntaxWarning, stacklevel=2)
+
+            self.pattern = pattern
+            self.flags = flags
+
+            try:
+                self.re = re.compile(self.pattern, self.flags)
+                self.reString = self.pattern
+            except sre_constants.error:
+                warnings.warn("invalid pattern (%s) passed to Regex" % pattern,
+                    SyntaxWarning, stacklevel=2)
+                raise
+
+        elif isinstance(pattern, Regex.compiledREtype):
+            self.re = pattern
+            self.pattern = \
+            self.reString = str(pattern)
+            self.flags = flags
+            
+        else:
+            raise ValueError("Regex may only be constructed with a string or a compiled RE object")
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        result = self.re.match(instring,loc)
+        if not result:
+            exc = self.myException
+            exc.loc = loc
+            exc.pstr = instring
+            raise exc
+
+        loc = result.end()
+        d = result.groupdict()
+        ret = ParseResults(result.group())
+        if d:
+            for k in d:
+                ret[k] = d[k]
+        return loc,ret
+
+    def __str__( self ):
+        try:
+            return super(Regex,self).__str__()
+        except:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "Re:(%s)" % repr(self.pattern)
+
+        return self.strRepr
+
+
+class QuotedString(Token):
+    """Token for matching strings that are delimited by quoting characters.
+    """
+    def __init__( self, quoteChar, escChar=None, escQuote=None, multiline=False, unquoteResults=True, endQuoteChar=None):
+        """
+           Defined with the following parameters:
+            - quoteChar - string of one or more characters defining the quote delimiting string
+            - escChar - character to escape quotes, typically backslash (default=None)
+            - escQuote - special quote sequence to escape an embedded quote string (such as SQL's "" to escape an embedded ") (default=None)
+            - multiline - boolean indicating whether quotes can span multiple lines (default=False)
+            - unquoteResults - boolean indicating whether the matched text should be unquoted (default=True)
+            - endQuoteChar - string of one or more characters defining the end of the quote delimited string (default=None => same as quoteChar)
+        """
+        super(QuotedString,self).__init__()
+
+        # remove white space from quote chars - wont work anyway
+        quoteChar = quoteChar.strip()
+        if len(quoteChar) == 0:
+            warnings.warn("quoteChar cannot be the empty string",SyntaxWarning,stacklevel=2)
+            raise SyntaxError()
+
+        if endQuoteChar is None:
+            endQuoteChar = quoteChar
+        else:
+            endQuoteChar = endQuoteChar.strip()
+            if len(endQuoteChar) == 0:
+                warnings.warn("endQuoteChar cannot be the empty string",SyntaxWarning,stacklevel=2)
+                raise SyntaxError()
+
+        self.quoteChar = quoteChar
+        self.quoteCharLen = len(quoteChar)
+        self.firstQuoteChar = quoteChar[0]
+        self.endQuoteChar = endQuoteChar
+        self.endQuoteCharLen = len(endQuoteChar)
+        self.escChar = escChar
+        self.escQuote = escQuote
+        self.unquoteResults = unquoteResults
+
+        if multiline:
+            self.flags = re.MULTILINE | re.DOTALL
+            self.pattern = r'%s(?:[^%s%s]' % \
+                ( re.escape(self.quoteChar),
+                  _escapeRegexRangeChars(self.endQuoteChar[0]),
+                  (escChar is not None and _escapeRegexRangeChars(escChar) or '') )
+        else:
+            self.flags = 0
+            self.pattern = r'%s(?:[^%s\n\r%s]' % \
+                ( re.escape(self.quoteChar),
+                  _escapeRegexRangeChars(self.endQuoteChar[0]),
+                  (escChar is not None and _escapeRegexRangeChars(escChar) or '') )
+        if len(self.endQuoteChar) > 1:
+            self.pattern += (
+                '|(?:' + ')|(?:'.join(["%s[^%s]" % (re.escape(self.endQuoteChar[:i]),
+                                               _escapeRegexRangeChars(self.endQuoteChar[i]))
+                                    for i in range(len(self.endQuoteChar)-1,0,-1)]) + ')'
+                )
+        if escQuote:
+            self.pattern += (r'|(?:%s)' % re.escape(escQuote))
+        if escChar:
+            self.pattern += (r'|(?:%s.)' % re.escape(escChar))
+            charset = ''.join(set(self.quoteChar[0]+self.endQuoteChar[0])).replace('^',r'\^').replace('-',r'\-')
+            self.escCharReplacePattern = re.escape(self.escChar)+("([%s])" % charset)
+        self.pattern += (r')*%s' % re.escape(self.endQuoteChar))
+
+        try:
+            self.re = re.compile(self.pattern, self.flags)
+            self.reString = self.pattern
+        except sre_constants.error:
+            warnings.warn("invalid pattern (%s) passed to Regex" % self.pattern,
+                SyntaxWarning, stacklevel=2)
+            raise
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        result = instring[loc] == self.firstQuoteChar and self.re.match(instring,loc) or None
+        if not result:
+            exc = self.myException
+            exc.loc = loc
+            exc.pstr = instring
+            raise exc
+
+        loc = result.end()
+        ret = result.group()
+
+        if self.unquoteResults:
+
+            # strip off quotes
+            ret = ret[self.quoteCharLen:-self.endQuoteCharLen]
+
+            if isinstance(ret,basestring):
+                # replace escaped characters
+                if self.escChar:
+                    ret = re.sub(self.escCharReplacePattern,"\g<1>",ret)
+
+                # replace escaped quotes
+                if self.escQuote:
+                    ret = ret.replace(self.escQuote, self.endQuoteChar)
+
+        return loc, ret
+
+    def __str__( self ):
+        try:
+            return super(QuotedString,self).__str__()
+        except:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "quoted string, starting with %s ending with %s" % (self.quoteChar, self.endQuoteChar)
+
+        return self.strRepr
+
+
+class CharsNotIn(Token):
+    """Token for matching words composed of characters *not* in a given set.
+       Defined with string containing all disallowed characters, and an optional
+       minimum, maximum, and/or exact length.  The default value for C{min} is 1 (a
+       minimum value < 1 is not valid); the default values for C{max} and C{exact}
+       are 0, meaning no maximum or exact length restriction.
+    """
+    def __init__( self, notChars, min=1, max=0, exact=0 ):
+        super(CharsNotIn,self).__init__()
+        self.skipWhitespace = False
+        self.notChars = notChars
+
+        if min < 1:
+            raise ValueError("cannot specify a minimum length < 1; use Optional(CharsNotIn()) if zero-length char group is permitted")
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = ( self.minLen == 0 )
+        self.mayIndexError = False
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if instring[loc] in self.notChars:
+            #~ raise ParseException( instring, loc, self.errmsg )
+            exc = self.myException
+            exc.loc = loc
+            exc.pstr = instring
+            raise exc
+
+        start = loc
+        loc += 1
+        notchars = self.notChars
+        maxlen = min( start+self.maxLen, len(instring) )
+        while loc < maxlen and \
+              (instring[loc] not in notchars):
+            loc += 1
+
+        if loc - start < self.minLen:
+            #~ raise ParseException( instring, loc, self.errmsg )
+            exc = self.myException
+            exc.loc = loc
+            exc.pstr = instring
+            raise exc
+
+        return loc, instring[start:loc]
+
+    def __str__( self ):
+        try:
+            return super(CharsNotIn, self).__str__()
+        except:
+            pass
+
+        if self.strRepr is None:
+            if len(self.notChars) > 4:
+                self.strRepr = "!W:(%s...)" % self.notChars[:4]
+            else:
+                self.strRepr = "!W:(%s)" % self.notChars
+
+        return self.strRepr
+
+class White(Token):
+    """Special matching class for matching whitespace.  Normally, whitespace is ignored
+       by pyparsing grammars.  This class is included when some whitespace structures
+       are significant.  Define with a string containing the whitespace characters to be
+       matched; default is C{" \\t\\r\\n"}.  Also takes optional C{min}, C{max}, and C{exact} arguments,
+       as defined for the C{Word} class."""
+    whiteStrs = {
+        " " : "<SPC>",
+        "\t": "<TAB>",
+        "\n": "<LF>",
+        "\r": "<CR>",
+        "\f": "<FF>",
+        }
+    def __init__(self, ws=" \t\r\n", min=1, max=0, exact=0):
+        super(White,self).__init__()
+        self.matchWhite = ws
+        self.setWhitespaceChars( "".join([c for c in self.whiteChars if c not in self.matchWhite]) )
+        #~ self.leaveWhitespace()
+        self.name = ("".join([White.whiteStrs[c] for c in self.matchWhite]))
+        self.mayReturnEmpty = True
+        self.errmsg = "Expected " + self.name
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if not(instring[ loc ] in self.matchWhite):
+            #~ raise ParseException( instring, loc, self.errmsg )
+            exc = self.myException
+            exc.loc = loc
+            exc.pstr = instring
+            raise exc
+        start = loc
+        loc += 1
+        maxloc = start + self.maxLen
+        maxloc = min( maxloc, len(instring) )
+        while loc < maxloc and instring[loc] in self.matchWhite:
+            loc += 1
+
+        if loc - start < self.minLen:
+            #~ raise ParseException( instring, loc, self.errmsg )
+            exc = self.myException
+            exc.loc = loc
+            exc.pstr = instring
+            raise exc
+
+        return loc, instring[start:loc]
+
+
+class _PositionToken(Token):
+    def __init__( self ):
+        super(_PositionToken,self).__init__()
+        self.name=self.__class__.__name__
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+
+class GoToColumn(_PositionToken):
+    """Token to advance to a specific column of input text; useful for tabular report scraping."""
+    def __init__( self, colno ):
+        super(GoToColumn,self).__init__()
+        self.col = colno
+
+    def preParse( self, instring, loc ):
+        if col(loc,instring) != self.col:
+            instrlen = len(instring)
+            if self.ignoreExprs:
+                loc = self._skipIgnorables( instring, loc )
+            while loc < instrlen and instring[loc].isspace() and col( loc, instring ) != self.col :
+                loc += 1
+        return loc
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        thiscol = col( loc, instring )
+        if thiscol > self.col:
+            raise ParseException( instring, loc, "Text not in expected column", self )
+        newloc = loc + self.col - thiscol
+        ret = instring[ loc: newloc ]
+        return newloc, ret
+
+class LineStart(_PositionToken):
+    """Matches if current position is at the beginning of a line within the parse string"""
+    def __init__( self ):
+        super(LineStart,self).__init__()
+        self.setWhitespaceChars( ParserElement.DEFAULT_WHITE_CHARS.replace("\n","") )
+        self.errmsg = "Expected start of line"
+
+    def preParse( self, instring, loc ):
+        preloc = super(LineStart,self).preParse(instring,loc)
+        if instring[preloc] == "\n":
+            loc += 1
+        return loc
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if not( loc==0 or
+            (loc == self.preParse( instring, 0 )) or
+            (instring[loc-1] == "\n") ): #col(loc, instring) != 1:
+            #~ raise ParseException( instring, loc, "Expected start of line" )
+            exc = self.myException
+            exc.loc = loc
+            exc.pstr = instring
+            raise exc
+        return loc, []
+
+class LineEnd(_PositionToken):
+    """Matches if current position is at the end of a line within the parse string"""
+    def __init__( self ):
+        super(LineEnd,self).__init__()
+        self.setWhitespaceChars( ParserElement.DEFAULT_WHITE_CHARS.replace("\n","") )
+        self.errmsg = "Expected end of line"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc<len(instring):
+            if instring[loc] == "\n":
+                return loc+1, "\n"
+            else:
+                #~ raise ParseException( instring, loc, "Expected end of line" )
+                exc = self.myException
+                exc.loc = loc
+                exc.pstr = instring
+                raise exc
+        elif loc == len(instring):
+            return loc+1, []
+        else:
+            exc = self.myException
+            exc.loc = loc
+            exc.pstr = instring
+            raise exc
+
+class StringStart(_PositionToken):
+    """Matches if current position is at the beginning of the parse string"""
+    def __init__( self ):
+        super(StringStart,self).__init__()
+        self.errmsg = "Expected start of text"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc != 0:
+            # see if entire string up to here is just whitespace and ignoreables
+            if loc != self.preParse( instring, 0 ):
+                #~ raise ParseException( instring, loc, "Expected start of text" )
+                exc = self.myException
+                exc.loc = loc
+                exc.pstr = instring
+                raise exc
+        return loc, []
+
+class StringEnd(_PositionToken):
+    """Matches if current position is at the end of the parse string"""
+    def __init__( self ):
+        super(StringEnd,self).__init__()
+        self.errmsg = "Expected end of text"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc < len(instring):
+            #~ raise ParseException( instring, loc, "Expected end of text" )
+            exc = self.myException
+            exc.loc = loc
+            exc.pstr = instring
+            raise exc
+        elif loc == len(instring):
+            return loc+1, []
+        elif loc > len(instring):
+            return loc, []
+        else:
+            exc = self.myException
+            exc.loc = loc
+            exc.pstr = instring
+            raise exc
+
+class WordStart(_PositionToken):
+    """Matches if the current position is at the beginning of a Word, and
+       is not preceded by any character in a given set of C{wordChars}
+       (default=C{printables}). To emulate the C{\b} behavior of regular expressions,
+       use C{WordStart(alphanums)}. C{WordStart} will also match at the beginning of
+       the string being parsed, or at the beginning of a line.
+    """
+    def __init__(self, wordChars = printables):
+        super(WordStart,self).__init__()
+        self.wordChars = set(wordChars)
+        self.errmsg = "Not at the start of a word"
+
+    def parseImpl(self, instring, loc, doActions=True ):
+        if loc != 0:
+            if (instring[loc-1] in self.wordChars or
+                instring[loc] not in self.wordChars):
+                exc = self.myException
+                exc.loc = loc
+                exc.pstr = instring
+                raise exc
+        return loc, []
+
+class WordEnd(_PositionToken):
+    """Matches if the current position is at the end of a Word, and
+       is not followed by any character in a given set of C{wordChars}
+       (default=C{printables}). To emulate the C{\b} behavior of regular expressions,
+       use C{WordEnd(alphanums)}. C{WordEnd} will also match at the end of
+       the string being parsed, or at the end of a line.
+    """
+    def __init__(self, wordChars = printables):
+        super(WordEnd,self).__init__()
+        self.wordChars = set(wordChars)
+        self.skipWhitespace = False
+        self.errmsg = "Not at the end of a word"
+
+    def parseImpl(self, instring, loc, doActions=True ):
+        instrlen = len(instring)
+        if instrlen>0 and loc<instrlen:
+            if (instring[loc] in self.wordChars or
+                instring[loc-1] not in self.wordChars):
+                #~ raise ParseException( instring, loc, "Expected end of word" )
+                exc = self.myException
+                exc.loc = loc
+                exc.pstr = instring
+                raise exc
+        return loc, []
+
+
+class ParseExpression(ParserElement):
+    """Abstract subclass of ParserElement, for combining and post-processing parsed tokens."""
+    def __init__( self, exprs, savelist = False ):
+        super(ParseExpression,self).__init__(savelist)
+        if isinstance( exprs, list ):
+            self.exprs = exprs
+        elif isinstance( exprs, basestring ):
+            self.exprs = [ Literal( exprs ) ]
+        else:
+            try:
+                self.exprs = list( exprs )
+            except TypeError:
+                self.exprs = [ exprs ]
+        self.callPreparse = False
+
+    def __getitem__( self, i ):
+        return self.exprs[i]
+
+    def append( self, other ):
+        self.exprs.append( other )
+        self.strRepr = None
+        return self
+
+    def leaveWhitespace( self ):
+        """Extends C{leaveWhitespace} defined in base class, and also invokes C{leaveWhitespace} on
+           all contained expressions."""
+        self.skipWhitespace = False
+        self.exprs = [ e.copy() for e in self.exprs ]
+        for e in self.exprs:
+            e.leaveWhitespace()
+        return self
+
+    def ignore( self, other ):
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                super( ParseExpression, self).ignore( other )
+                for e in self.exprs:
+                    e.ignore( self.ignoreExprs[-1] )
+        else:
+            super( ParseExpression, self).ignore( other )
+            for e in self.exprs:
+                e.ignore( self.ignoreExprs[-1] )
+        return self
+
+    def __str__( self ):
+        try:
+            return super(ParseExpression,self).__str__()
+        except:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "%s:(%s)" % ( self.__class__.__name__, _ustr(self.exprs) )
+        return self.strRepr
+
+    def streamline( self ):
+        super(ParseExpression,self).streamline()
+
+        for e in self.exprs:
+            e.streamline()
+
+        # collapse nested And's of the form And( And( And( a,b), c), d) to And( a,b,c,d )
+        # but only if there are no parse actions or resultsNames on the nested And's
+        # (likewise for Or's and MatchFirst's)
+        if ( len(self.exprs) == 2 ):
+            other = self.exprs[0]
+            if ( isinstance( other, self.__class__ ) and
+                  not(other.parseAction) and
+                  other.resultsName is None and
+                  not other.debug ):
+                self.exprs = other.exprs[:] + [ self.exprs[1] ]
+                self.strRepr = None
+                self.mayReturnEmpty |= other.mayReturnEmpty
+                self.mayIndexError  |= other.mayIndexError
+
+            other = self.exprs[-1]
+            if ( isinstance( other, self.__class__ ) and
+                  not(other.parseAction) and
+                  other.resultsName is None and
+                  not other.debug ):
+                self.exprs = self.exprs[:-1] + other.exprs[:]
+                self.strRepr = None
+                self.mayReturnEmpty |= other.mayReturnEmpty
+                self.mayIndexError  |= other.mayIndexError
+
+        return self
+
+    def setResultsName( self, name, listAllMatches=False ):
+        ret = super(ParseExpression,self).setResultsName(name,listAllMatches)
+        return ret
+
+    def validate( self, validateTrace=[] ):
+        tmp = validateTrace[:]+[self]
+        for e in self.exprs:
+            e.validate(tmp)
+        self.checkRecursion( [] )
+        
+    def copy(self):
+        ret = super(ParseExpression,self).copy()
+        ret.exprs = [e.copy() for e in self.exprs]
+        return ret
+
+class And(ParseExpression):
+    """Requires all given C{ParseExpression}s to be found in the given order.
+       Expressions may be separated by whitespace.
+       May be constructed using the C{'+'} operator.
+    """
+
+    class _ErrorStop(Empty):
+        def __init__(self, *args, **kwargs):
+            super(Empty,self).__init__(*args, **kwargs)
+            self.leaveWhitespace()
+
+    def __init__( self, exprs, savelist = True ):
+        super(And,self).__init__(exprs, savelist)
+        self.mayReturnEmpty = True
+        for e in self.exprs:
+            if not e.mayReturnEmpty:
+                self.mayReturnEmpty = False
+                break
+        self.setWhitespaceChars( exprs[0].whiteChars )
+        self.skipWhitespace = exprs[0].skipWhitespace
+        self.callPreparse = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        # pass False as last arg to _parse for first element, since we already
+        # pre-parsed the string as part of our And pre-parsing
+        loc, resultlist = self.exprs[0]._parse( instring, loc, doActions, callPreParse=False )
+        errorStop = False
+        for e in self.exprs[1:]:
+            if isinstance(e, And._ErrorStop):
+                errorStop = True
+                continue
+            if errorStop:
+                try:
+                    loc, exprtokens = e._parse( instring, loc, doActions )
+                except ParseSyntaxException:
+                    raise
+                except ParseBaseException:
+                    pe = sys.exc_info()[1]
+                    raise ParseSyntaxException(pe)
+                except IndexError:
+                    raise ParseSyntaxException( ParseException(instring, len(instring), self.errmsg, self) )
+            else:
+                loc, exprtokens = e._parse( instring, loc, doActions )
+            if exprtokens or exprtokens.keys():
+                resultlist += exprtokens
+        return loc, resultlist
+
+    def __iadd__(self, other ):
+        if isinstance( other, basestring ):
+            other = Literal( other )
+        return self.append( other ) #And( [ self, other ] )
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+            if not e.mayReturnEmpty:
+                break
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " ".join( [ _ustr(e) for e in self.exprs ] ) + "}"
+
+        return self.strRepr
+
+
+class Or(ParseExpression):
+    """Requires that at least one C{ParseExpression} is found.
+       If two expressions match, the expression that matches the longest string will be used.
+       May be constructed using the C{'^'} operator.
+    """
+    def __init__( self, exprs, savelist = False ):
+        super(Or,self).__init__(exprs, savelist)
+        self.mayReturnEmpty = False
+        for e in self.exprs:
+            if e.mayReturnEmpty:
+                self.mayReturnEmpty = True
+                break
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        maxExcLoc = -1
+        maxMatchLoc = -1
+        maxException = None
+        for e in self.exprs:
+            try:
+                loc2 = e.tryParse( instring, loc )
+            except ParseException:
+                err = sys.exc_info()[1]
+                if err.loc > maxExcLoc:
+                    maxException = err
+                    maxExcLoc = err.loc
+            except IndexError:
+                if len(instring) > maxExcLoc:
+                    maxException = ParseException(instring,len(instring),e.errmsg,self)
+                    maxExcLoc = len(instring)
+            else:
+                if loc2 > maxMatchLoc:
+                    maxMatchLoc = loc2
+                    maxMatchExp = e
+
+        if maxMatchLoc < 0:
+            if maxException is not None:
+                raise maxException
+            else:
+                raise ParseException(instring, loc, "no defined alternatives to match", self)
+
+        return maxMatchExp._parse( instring, loc, doActions )
+
+    def __ixor__(self, other ):
+        if isinstance( other, basestring ):
+            other = Literal( other )
+        return self.append( other ) #Or( [ self, other ] )
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " ^ ".join( [ _ustr(e) for e in self.exprs ] ) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class MatchFirst(ParseExpression):
+    """Requires that at least one C{ParseExpression} is found.
+       If two expressions match, the first one listed is the one that will match.
+       May be constructed using the C{'|'} operator.
+    """
+    def __init__( self, exprs, savelist = False ):
+        super(MatchFirst,self).__init__(exprs, savelist)
+        if exprs:
+            self.mayReturnEmpty = False
+            for e in self.exprs:
+                if e.mayReturnEmpty:
+                    self.mayReturnEmpty = True
+                    break
+        else:
+            self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        maxExcLoc = -1
+        maxException = None
+        for e in self.exprs:
+            try:
+                ret = e._parse( instring, loc, doActions )
+                return ret
+            except ParseException, err:
+                if err.loc > maxExcLoc:
+                    maxException = err
+                    maxExcLoc = err.loc
+            except IndexError:
+                if len(instring) > maxExcLoc:
+                    maxException = ParseException(instring,len(instring),e.errmsg,self)
+                    maxExcLoc = len(instring)
+
+        # only got here if no expression matched, raise exception for match that made it the furthest
+        else:
+            if maxException is not None:
+                raise maxException
+            else:
+                raise ParseException(instring, loc, "no defined alternatives to match", self)
+
+    def __ior__(self, other ):
+        if isinstance( other, basestring ):
+            other = Literal( other )
+        return self.append( other ) #MatchFirst( [ self, other ] )
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " | ".join( [ _ustr(e) for e in self.exprs ] ) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class Each(ParseExpression):
+    """Requires all given C{ParseExpression}s to be found, but in any order.
+       Expressions may be separated by whitespace.
+       May be constructed using the C{'&'} operator.
+    """
+    def __init__( self, exprs, savelist = True ):
+        super(Each,self).__init__(exprs, savelist)
+        self.mayReturnEmpty = True
+        for e in self.exprs:
+            if not e.mayReturnEmpty:
+                self.mayReturnEmpty = False
+                break
+        self.skipWhitespace = True
+        self.initExprGroups = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.initExprGroups:
+            opt1 = [ e.expr for e in self.exprs if isinstance(e,Optional) ]
+            opt2 = [ e for e in self.exprs if e.mayReturnEmpty and e not in opt1 ]
+            self.optionals = opt1 + opt2
+            self.multioptionals = [ e.expr for e in self.exprs if isinstance(e,ZeroOrMore) ]
+            self.multirequired = [ e.expr for e in self.exprs if isinstance(e,OneOrMore) ]
+            self.required = [ e for e in self.exprs if not isinstance(e,(Optional,ZeroOrMore,OneOrMore)) ]
+            self.required += self.multirequired
+            self.initExprGroups = False
+        tmpLoc = loc
+        tmpReqd = self.required[:]
+        tmpOpt  = self.optionals[:]
+        matchOrder = []
+
+        keepMatching = True
+        while keepMatching:
+            tmpExprs = tmpReqd + tmpOpt + self.multioptionals + self.multirequired
+            failed = []
+            for e in tmpExprs:
+                try:
+                    tmpLoc = e.tryParse( instring, tmpLoc )
+                except ParseException:
+                    failed.append(e)
+                else:
+                    matchOrder.append(e)
+                    if e in tmpReqd:
+                        tmpReqd.remove(e)
+                    elif e in tmpOpt:
+                        tmpOpt.remove(e)
+            if len(failed) == len(tmpExprs):
+                keepMatching = False
+
+        if tmpReqd:
+            missing = ", ".join( [ _ustr(e) for e in tmpReqd ] )
+            raise ParseException(instring,loc,"Missing one or more required elements (%s)" % missing )
+
+        # add any unmatched Optionals, in case they have default values defined
+        matchOrder += [e for e in self.exprs if isinstance(e,Optional) and e.expr in tmpOpt]
+
+        resultlist = []
+        for e in matchOrder:
+            loc,results = e._parse(instring,loc,doActions)
+            resultlist.append(results)
+
+        finalResults = ParseResults([])
+        for r in resultlist:
+            dups = {}
+            for k in r.keys():
+                if k in finalResults.keys():
+                    tmp = ParseResults(finalResults[k])
+                    tmp += ParseResults(r[k])
+                    dups[k] = tmp
+            finalResults += ParseResults(r)
+            for k,v in dups.items():
+                finalResults[k] = v
+        return loc, finalResults
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " & ".join( [ _ustr(e) for e in self.exprs ] ) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class ParseElementEnhance(ParserElement):
+    """Abstract subclass of C{ParserElement}, for combining and post-processing parsed tokens."""
+    def __init__( self, expr, savelist=False ):
+        super(ParseElementEnhance,self).__init__(savelist)
+        if isinstance( expr, basestring ):
+            expr = Literal(expr)
+        self.expr = expr
+        self.strRepr = None
+        if expr is not None:
+            self.mayIndexError = expr.mayIndexError
+            self.mayReturnEmpty = expr.mayReturnEmpty
+            self.setWhitespaceChars( expr.whiteChars )
+            self.skipWhitespace = expr.skipWhitespace
+            self.saveAsList = expr.saveAsList
+            self.callPreparse = expr.callPreparse
+            self.ignoreExprs.extend(expr.ignoreExprs)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.expr is not None:
+            return self.expr._parse( instring, loc, doActions, callPreParse=False )
+        else:
+            raise ParseException("",loc,self.errmsg,self)
+
+    def leaveWhitespace( self ):
+        self.skipWhitespace = False
+        self.expr = self.expr.copy()
+        if self.expr is not None:
+            self.expr.leaveWhitespace()
+        return self
+
+    def ignore( self, other ):
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                super( ParseElementEnhance, self).ignore( other )
+                if self.expr is not None:
+                    self.expr.ignore( self.ignoreExprs[-1] )
+        else:
+            super( ParseElementEnhance, self).ignore( other )
+            if self.expr is not None:
+                self.expr.ignore( self.ignoreExprs[-1] )
+        return self
+
+    def streamline( self ):
+        super(ParseElementEnhance,self).streamline()
+        if self.expr is not None:
+            self.expr.streamline()
+        return self
+
+    def checkRecursion( self, parseElementList ):
+        if self in parseElementList:
+            raise RecursiveGrammarException( parseElementList+[self] )
+        subRecCheckList = parseElementList[:] + [ self ]
+        if self.expr is not None:
+            self.expr.checkRecursion( subRecCheckList )
+
+    def validate( self, validateTrace=[] ):
+        tmp = validateTrace[:]+[self]
+        if self.expr is not None:
+            self.expr.validate(tmp)
+        self.checkRecursion( [] )
+
+    def __str__( self ):
+        try:
+            return super(ParseElementEnhance,self).__str__()
+        except:
+            pass
+
+        if self.strRepr is None and self.expr is not None:
+            self.strRepr = "%s:(%s)" % ( self.__class__.__name__, _ustr(self.expr) )
+        return self.strRepr
+
+
+class FollowedBy(ParseElementEnhance):
+    """Lookahead matching of the given parse expression.  C{FollowedBy}
+    does *not* advance the parsing position within the input string, it only
+    verifies that the specified parse expression matches at the current
+    position.  C{FollowedBy} always returns a null token list."""
+    def __init__( self, expr ):
+        super(FollowedBy,self).__init__(expr)
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        self.expr.tryParse( instring, loc )
+        return loc, []
+
+
+class NotAny(ParseElementEnhance):
+    """Lookahead to disallow matching with the given parse expression.  C{NotAny}
+    does *not* advance the parsing position within the input string, it only
+    verifies that the specified parse expression does *not* match at the current
+    position.  Also, C{NotAny} does *not* skip over leading whitespace. C{NotAny}
+    always returns a null token list.  May be constructed using the '~' operator."""
+    def __init__( self, expr ):
+        super(NotAny,self).__init__(expr)
+        #~ self.leaveWhitespace()
+        self.skipWhitespace = False  # do NOT use self.leaveWhitespace(), don't want to propagate to exprs
+        self.mayReturnEmpty = True
+        self.errmsg = "Found unwanted token, "+_ustr(self.expr)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        try:
+            self.expr.tryParse( instring, loc )
+        except (ParseException,IndexError):
+            pass
+        else:
+            #~ raise ParseException(instring, loc, self.errmsg )
+            exc = self.myException
+            exc.loc = loc
+            exc.pstr = instring
+            raise exc
+        return loc, []
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "~{" + _ustr(self.expr) + "}"
+
+        return self.strRepr
+
+
+class ZeroOrMore(ParseElementEnhance):
+    """Optional repetition of zero or more of the given expression."""
+    def __init__( self, expr ):
+        super(ZeroOrMore,self).__init__(expr)
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        tokens = []
+        try:
+            loc, tokens = self.expr._parse( instring, loc, doActions, callPreParse=False )
+            hasIgnoreExprs = ( len(self.ignoreExprs) > 0 )
+            while 1:
+                if hasIgnoreExprs:
+                    preloc = self._skipIgnorables( instring, loc )
+                else:
+                    preloc = loc
+                loc, tmptokens = self.expr._parse( instring, preloc, doActions )
+                if tmptokens or tmptokens.keys():
+                    tokens += tmptokens
+        except (ParseException,IndexError):
+            pass
+
+        return loc, tokens
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "[" + _ustr(self.expr) + "]..."
+
+        return self.strRepr
+
+    def setResultsName( self, name, listAllMatches=False ):
+        ret = super(ZeroOrMore,self).setResultsName(name,listAllMatches)
+        ret.saveAsList = True
+        return ret
+
+
+class OneOrMore(ParseElementEnhance):
+    """Repetition of one or more of the given expression."""
+    def parseImpl( self, instring, loc, doActions=True ):
+        # must be at least one
+        loc, tokens = self.expr._parse( instring, loc, doActions, callPreParse=False )
+        try:
+            hasIgnoreExprs = ( len(self.ignoreExprs) > 0 )
+            while 1:
+                if hasIgnoreExprs:
+                    preloc = self._skipIgnorables( instring, loc )
+                else:
+                    preloc = loc
+                loc, tmptokens = self.expr._parse( instring, preloc, doActions )
+                if tmptokens or tmptokens.keys():
+                    tokens += tmptokens
+        except (ParseException,IndexError):
+            pass
+
+        return loc, tokens
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + _ustr(self.expr) + "}..."
+
+        return self.strRepr
+
+    def setResultsName( self, name, listAllMatches=False ):
+        ret = super(OneOrMore,self).setResultsName(name,listAllMatches)
+        ret.saveAsList = True
+        return ret
+
+class _NullToken(object):
+    def __bool__(self):
+        return False
+    __nonzero__ = __bool__
+    def __str__(self):
+        return ""
+
+_optionalNotMatched = _NullToken()
+class Optional(ParseElementEnhance):
+    """Optional matching of the given expression.
+       A default return string can also be specified, if the optional expression
+       is not found.
+    """
+    def __init__( self, exprs, default=_optionalNotMatched ):
+        super(Optional,self).__init__( exprs, savelist=False )
+        self.defaultValue = default
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        try:
+            loc, tokens = self.expr._parse( instring, loc, doActions, callPreParse=False )
+        except (ParseException,IndexError):
+            if self.defaultValue is not _optionalNotMatched:
+                if self.expr.resultsName:
+                    tokens = ParseResults([ self.defaultValue ])
+                    tokens[self.expr.resultsName] = self.defaultValue
+                else:
+                    tokens = [ self.defaultValue ]
+            else:
+                tokens = []
+        return loc, tokens
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "[" + _ustr(self.expr) + "]"
+
+        return self.strRepr
+
+
+class SkipTo(ParseElementEnhance):
+    """Token for skipping over all undefined text until the matched expression is found.
+       If C{include} is set to true, the matched expression is also parsed (the skipped text
+       and matched expression are returned as a 2-element list).  The C{ignore}
+       argument is used to define grammars (typically quoted strings and comments) that
+       might contain false matches.
+    """
+    def __init__( self, other, include=False, ignore=None, failOn=None ):
+        super( SkipTo, self ).__init__( other )
+        self.ignoreExpr = ignore
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+        self.includeMatch = include
+        self.asList = False
+        if failOn is not None and isinstance(failOn, basestring):
+            self.failOn = Literal(failOn)
+        else:
+            self.failOn = failOn
+        self.errmsg = "No match found for "+_ustr(self.expr)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        startLoc = loc
+        instrlen = len(instring)
+        expr = self.expr
+        failParse = False
+        while loc <= instrlen:
+            try:
+                if self.failOn:
+                    try:
+                        self.failOn.tryParse(instring, loc)
+                    except ParseBaseException:
+                        pass
+                    else:
+                        failParse = True
+                        raise ParseException(instring, loc, "Found expression " + str(self.failOn))
+                    failParse = False
+                if self.ignoreExpr is not None:
+                    while 1:
+                        try:
+                            loc = self.ignoreExpr.tryParse(instring,loc)
+                            # print "found ignoreExpr, advance to", loc
+                        except ParseBaseException:
+                            break
+                expr._parse( instring, loc, doActions=False, callPreParse=False )
+                skipText = instring[startLoc:loc]
+                if self.includeMatch:
+                    loc,mat = expr._parse(instring,loc,doActions,callPreParse=False)
+                    if mat:
+                        skipRes = ParseResults( skipText )
+                        skipRes += mat
+                        return loc, [ skipRes ]
+                    else:
+                        return loc, [ skipText ]
+                else:
+                    return loc, [ skipText ]
+            except (ParseException,IndexError):
+                if failParse:
+                    raise
+                else:
+                    loc += 1
+        exc = self.myException
+        exc.loc = loc
+        exc.pstr = instring
+        raise exc
+
+class Forward(ParseElementEnhance):
+    """Forward declaration of an expression to be defined later -
+       used for recursive grammars, such as algebraic infix notation.
+       When the expression is known, it is assigned to the C{Forward} variable using the '<<' operator.
+
+       Note: take care when assigning to C{Forward} not to overlook precedence of operators.
+       Specifically, '|' has a lower precedence than '<<', so that::
+          fwdExpr << a | b | c
+       will actually be evaluated as::
+          (fwdExpr << a) | b | c
+       thereby leaving b and c out as parseable alternatives.  It is recommended that you
+       explicitly group the values inserted into the C{Forward}::
+          fwdExpr << (a | b | c)
+    """
+    def __init__( self, other=None ):
+        super(Forward,self).__init__( other, savelist=False )
+
+    def __lshift__( self, other ):
+        if isinstance( other, basestring ):
+            other = Literal(other)
+        self.expr = other
+        self.mayReturnEmpty = other.mayReturnEmpty
+        self.strRepr = None
+        self.mayIndexError = self.expr.mayIndexError
+        self.mayReturnEmpty = self.expr.mayReturnEmpty
+        self.setWhitespaceChars( self.expr.whiteChars )
+        self.skipWhitespace = self.expr.skipWhitespace
+        self.saveAsList = self.expr.saveAsList
+        self.ignoreExprs.extend(self.expr.ignoreExprs)
+        return None
+
+    def leaveWhitespace( self ):
+        self.skipWhitespace = False
+        return self
+
+    def streamline( self ):
+        if not self.streamlined:
+            self.streamlined = True
+            if self.expr is not None:
+                self.expr.streamline()
+        return self
+
+    def validate( self, validateTrace=[] ):
+        if self not in validateTrace:
+            tmp = validateTrace[:]+[self]
+            if self.expr is not None:
+                self.expr.validate(tmp)
+        self.checkRecursion([])
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        self._revertClass = self.__class__
+        self.__class__ = _ForwardNoRecurse
+        try:
+            if self.expr is not None:
+                retString = _ustr(self.expr)
+            else:
+                retString = "None"
+        finally:
+            self.__class__ = self._revertClass
+        return self.__class__.__name__ + ": " + retString
+
+    def copy(self):
+        if self.expr is not None:
+            return super(Forward,self).copy()
+        else:
+            ret = Forward()
+            ret << self
+            return ret
+
+class _ForwardNoRecurse(Forward):
+    def __str__( self ):
+        return "..."
+
+class TokenConverter(ParseElementEnhance):
+    """Abstract subclass of C{ParseExpression}, for converting parsed results."""
+    def __init__( self, expr, savelist=False ):
+        super(TokenConverter,self).__init__( expr )#, savelist )
+        self.saveAsList = False
+
+class Upcase(TokenConverter):
+    """Converter to upper case all matching tokens."""
+    def __init__(self, *args):
+        super(Upcase,self).__init__(*args)
+        warnings.warn("Upcase class is deprecated, use upcaseTokens parse action instead",
+                       DeprecationWarning,stacklevel=2)
+
+    def postParse( self, instring, loc, tokenlist ):
+        return list(map( string.upper, tokenlist ))
+
+
+class Combine(TokenConverter):
+    """Converter to concatenate all matching tokens to a single string.
+       By default, the matching patterns must also be contiguous in the input string;
+       this can be disabled by specifying C{'adjacent=False'} in the constructor.
+    """
+    def __init__( self, expr, joinString="", adjacent=True ):
+        super(Combine,self).__init__( expr )
+        # suppress whitespace-stripping in contained parse expressions, but re-enable it on the Combine itself
+        if adjacent:
+            self.leaveWhitespace()
+        self.adjacent = adjacent
+        self.skipWhitespace = True
+        self.joinString = joinString
+        self.callPreparse = True
+
+    def ignore( self, other ):
+        if self.adjacent:
+            ParserElement.ignore(self, other)
+        else:
+            super( Combine, self).ignore( other )
+        return self
+
+    def postParse( self, instring, loc, tokenlist ):
+        retToks = tokenlist.copy()
+        del retToks[:]
+        retToks += ParseResults([ "".join(tokenlist._asStringList(self.joinString)) ], modal=self.modalResults)
+
+        if self.resultsName and len(retToks.keys())>0:
+            return [ retToks ]
+        else:
+            return retToks
+
+class Group(TokenConverter):
+    """Converter to return the matched tokens as a list - useful for returning tokens of C{ZeroOrMore} and C{OneOrMore} expressions."""
+    def __init__( self, expr ):
+        super(Group,self).__init__( expr )
+        self.saveAsList = True
+
+    def postParse( self, instring, loc, tokenlist ):
+        return [ tokenlist ]
+
+class Dict(TokenConverter):
+    """Converter to return a repetitive expression as a list, but also as a dictionary.
+       Each element can also be referenced using the first token in the expression as its key.
+       Useful for tabular report scraping when the first column can be used as a item key.
+    """
+    def __init__( self, exprs ):
+        super(Dict,self).__init__( exprs )
+        self.saveAsList = True
+
+    def postParse( self, instring, loc, tokenlist ):
+        for i,tok in enumerate(tokenlist):
+            if len(tok) == 0:
+                continue
+            ikey = tok[0]
+            if isinstance(ikey,int):
+                ikey = _ustr(tok[0]).strip()
+            if len(tok)==1:
+                tokenlist[ikey] = _ParseResultsWithOffset("",i)
+            elif len(tok)==2 and not isinstance(tok[1],ParseResults):
+                tokenlist[ikey] = _ParseResultsWithOffset(tok[1],i)
+            else:
+                dictvalue = tok.copy() #ParseResults(i)
+                del dictvalue[0]
+                if len(dictvalue)!= 1 or (isinstance(dictvalue,ParseResults) and dictvalue.keys()):
+                    tokenlist[ikey] = _ParseResultsWithOffset(dictvalue,i)
+                else:
+                    tokenlist[ikey] = _ParseResultsWithOffset(dictvalue[0],i)
+
+        if self.resultsName:
+            return [ tokenlist ]
+        else:
+            return tokenlist
+
+
+class Suppress(TokenConverter):
+    """Converter for ignoring the results of a parsed expression."""
+    def postParse( self, instring, loc, tokenlist ):
+        return []
+
+    def suppress( self ):
+        return self
+
+
+class OnlyOnce(object):
+    """Wrapper for parse actions, to ensure they are only called once."""
+    def __init__(self, methodCall):
+        self.callable = _trim_arity(methodCall)
+        self.called = False
+    def __call__(self,s,l,t):
+        if not self.called:
+            results = self.callable(s,l,t)
+            self.called = True
+            return results
+        raise ParseException(s,l,"")
+    def reset(self):
+        self.called = False
+
+def traceParseAction(f):
+    """Decorator for debugging parse actions."""
+    f = _trim_arity(f)
+    def z(*paArgs):
+        thisFunc = f.func_name
+        s,l,t = paArgs[-3:]
+        if len(paArgs)>3:
+            thisFunc = paArgs[0].__class__.__name__ + '.' + thisFunc
+        sys.stderr.write( ">>entering %s(line: '%s', %d, %s)\n" % (thisFunc,line(l,s),l,t) )
+        try:
+            ret = f(*paArgs)
+        except Exception:
+            exc = sys.exc_info()[1]
+            sys.stderr.write( "<<leaving %s (exception: %s)\n" % (thisFunc,exc) )
+            raise
+        sys.stderr.write( "<<leaving %s (ret: %s)\n" % (thisFunc,ret) )
+        return ret
+    try:
+        z.__name__ = f.__name__
+    except AttributeError:
+        pass
+    return z
+
+#
+# global helpers
+#
+def delimitedList( expr, delim=",", combine=False ):
+    """Helper to define a delimited list of expressions - the delimiter defaults to ','.
+       By default, the list elements and delimiters can have intervening whitespace, and
+       comments, but this can be overridden by passing C{combine=True} in the constructor.
+       If C{combine} is set to True, the matching tokens are returned as a single token
+       string, with the delimiters included; otherwise, the matching tokens are returned
+       as a list of tokens, with the delimiters suppressed.
+    """
+    dlName = _ustr(expr)+" ["+_ustr(delim)+" "+_ustr(expr)+"]..."
+    if combine:
+        return Combine( expr + ZeroOrMore( delim + expr ) ).setName(dlName)
+    else:
+        return ( expr + ZeroOrMore( Suppress( delim ) + expr ) ).setName(dlName)
+
+def countedArray( expr, intExpr=None ):
+    """Helper to define a counted list of expressions.
+       This helper defines a pattern of the form::
+           integer expr expr expr...
+       where the leading integer tells how many expr expressions follow.
+       The matched tokens returns the array of expr tokens as a list - the leading count token is suppressed.
+    """
+    arrayExpr = Forward()
+    def countFieldParseAction(s,l,t):
+        n = t[0]
+        arrayExpr << (n and Group(And([expr]*n)) or Group(empty))
+        return []
+    if intExpr is None:
+        intExpr = Word(nums).setParseAction(lambda t:int(t[0]))
+    else:
+        intExpr = intExpr.copy()
+    intExpr.setName("arrayLen")
+    intExpr.addParseAction(countFieldParseAction, callDuringTry=True)
+    return ( intExpr + arrayExpr )
+
+def _flatten(L):
+    ret = []
+    for i in L:
+        if isinstance(i,list):
+            ret.extend(_flatten(i))
+        else:
+            ret.append(i)
+    return ret
+
+def matchPreviousLiteral(expr):
+    """Helper to define an expression that is indirectly defined from
+       the tokens matched in a previous expression, that is, it looks
+       for a 'repeat' of a previous expression.  For example::
+           first = Word(nums)
+           second = matchPreviousLiteral(first)
+           matchExpr = first + ":" + second
+       will match C{"1:1"}, but not C{"1:2"}.  Because this matches a
+       previous literal, will also match the leading C{"1:1"} in C{"1:10"}.
+       If this is not desired, use C{matchPreviousExpr}.
+       Do *not* use with packrat parsing enabled.
+    """
+    rep = Forward()
+    def copyTokenToRepeater(s,l,t):
+        if t:
+            if len(t) == 1:
+                rep << t[0]
+            else:
+                # flatten t tokens
+                tflat = _flatten(t.asList())
+                rep << And( [ Literal(tt) for tt in tflat ] )
+        else:
+            rep << Empty()
+    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
+    return rep
+
+def matchPreviousExpr(expr):
+    """Helper to define an expression that is indirectly defined from
+       the tokens matched in a previous expression, that is, it looks
+       for a 'repeat' of a previous expression.  For example::
+           first = Word(nums)
+           second = matchPreviousExpr(first)
+           matchExpr = first + ":" + second
+       will match C{"1:1"}, but not C{"1:2"}.  Because this matches by
+       expressions, will *not* match the leading C{"1:1"} in C{"1:10"};
+       the expressions are evaluated first, and then compared, so
+       C{"1"} is compared with C{"10"}.
+       Do *not* use with packrat parsing enabled.
+    """
+    rep = Forward()
+    e2 = expr.copy()
+    rep << e2
+    def copyTokenToRepeater(s,l,t):
+        matchTokens = _flatten(t.asList())
+        def mustMatchTheseTokens(s,l,t):
+            theseTokens = _flatten(t.asList())
+            if  theseTokens != matchTokens:
+                raise ParseException("",0,"")
+        rep.setParseAction( mustMatchTheseTokens, callDuringTry=True )
+    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
+    return rep
+
+def _escapeRegexRangeChars(s):
+    #~  escape these chars: ^-]
+    for c in r"\^-]":
+        s = s.replace(c,_bslash+c)
+    s = s.replace("\n",r"\n")
+    s = s.replace("\t",r"\t")
+    return _ustr(s)
+
+def oneOf( strs, caseless=False, useRegex=True ):
+    """Helper to quickly define a set of alternative Literals, and makes sure to do
+       longest-first testing when there is a conflict, regardless of the input order,
+       but returns a C{MatchFirst} for best performance.
+
+       Parameters:
+        - strs - a string of space-delimited literals, or a list of string literals
+        - caseless - (default=False) - treat all literals as caseless
+        - useRegex - (default=True) - as an optimization, will generate a Regex
+          object; otherwise, will generate a C{MatchFirst} object (if C{caseless=True}, or
+          if creating a C{Regex} raises an exception)
+    """
+    if caseless:
+        isequal = ( lambda a,b: a.upper() == b.upper() )
+        masks = ( lambda a,b: b.upper().startswith(a.upper()) )
+        parseElementClass = CaselessLiteral
+    else:
+        isequal = ( lambda a,b: a == b )
+        masks = ( lambda a,b: b.startswith(a) )
+        parseElementClass = Literal
+
+    if isinstance(strs,(list,tuple)):
+        symbols = list(strs[:])
+    elif isinstance(strs,basestring):
+        symbols = strs.split()
+    else:
+        warnings.warn("Invalid argument to oneOf, expected string or list",
+                SyntaxWarning, stacklevel=2)
+
+    i = 0
+    while i < len(symbols)-1:
+        cur = symbols[i]
+        for j,other in enumerate(symbols[i+1:]):
+            if ( isequal(other, cur) ):
+                del symbols[i+j+1]
+                break
+            elif ( masks(cur, other) ):
+                del symbols[i+j+1]
+                symbols.insert(i,other)
+                cur = other
+                break
+        else:
+            i += 1
+
+    if not caseless and useRegex:
+        #~ print (strs,"->", "|".join( [ _escapeRegexChars(sym) for sym in symbols] ))
+        try:
+            if len(symbols)==len("".join(symbols)):
+                return Regex( "[%s]" % "".join( [ _escapeRegexRangeChars(sym) for sym in symbols] ) )
+            else:
+                return Regex( "|".join( [ re.escape(sym) for sym in symbols] ) )
+        except:
+            warnings.warn("Exception creating Regex for oneOf, building MatchFirst",
+                    SyntaxWarning, stacklevel=2)
+
+
+    # last resort, just use MatchFirst
+    return MatchFirst( [ parseElementClass(sym) for sym in symbols ] )
+
+def dictOf( key, value ):
+    """Helper to easily and clearly define a dictionary by specifying the respective patterns
+       for the key and value.  Takes care of defining the C{Dict}, C{ZeroOrMore}, and C{Group} tokens
+       in the proper order.  The key pattern can include delimiting markers or punctuation,
+       as long as they are suppressed, thereby leaving the significant key text.  The value
+       pattern can include named results, so that the C{Dict} results can include named token
+       fields.
+    """
+    return Dict( ZeroOrMore( Group ( key + value ) ) )
+
+def originalTextFor(expr, asString=True):
+    """Helper to return the original, untokenized text for a given expression.  Useful to
+       restore the parsed fields of an HTML start tag into the raw tag text itself, or to
+       revert separate tokens with intervening whitespace back to the original matching
+       input text. Simpler to use than the parse action C{L{keepOriginalText}}, and does not
+       require the inspect module to chase up the call stack.  By default, returns a 
+       string containing the original parsed text.  
+       
+       If the optional C{asString} argument is passed as C{False}, then the return value is a 
+       C{ParseResults} containing any results names that were originally matched, and a 
+       single token containing the original matched text from the input string.  So if 
+       the expression passed to C{L{originalTextFor}} contains expressions with defined
+       results names, you must set C{asString} to C{False} if you want to preserve those
+       results name values."""
+    locMarker = Empty().setParseAction(lambda s,loc,t: loc)
+    endlocMarker = locMarker.copy()
+    endlocMarker.callPreparse = False
+    matchExpr = locMarker("_original_start") + expr + endlocMarker("_original_end")
+    if asString:
+        extractText = lambda s,l,t: s[t._original_start:t._original_end]
+    else:
+        def extractText(s,l,t):
+            del t[:]
+            t.insert(0, s[t._original_start:t._original_end])
+            del t["_original_start"]
+            del t["_original_end"]
+    matchExpr.setParseAction(extractText)
+    return matchExpr
+
+def ungroup(expr): 
+    """Helper to undo pyparsing's default grouping of And expressions, even
+       if all but one are non-empty."""
+    return TokenConverter(expr).setParseAction(lambda t:t[0])
+
+# convenience constants for positional expressions
+empty       = Empty().setName("empty")
+lineStart   = LineStart().setName("lineStart")
+lineEnd     = LineEnd().setName("lineEnd")
+stringStart = StringStart().setName("stringStart")
+stringEnd   = StringEnd().setName("stringEnd")
+
+_escapedPunc = Word( _bslash, r"\[]-*.$+^?()~ ", exact=2 ).setParseAction(lambda s,l,t:t[0][1])
+_printables_less_backslash = "".join([ c for c in printables if c not in  r"\]" ])
+_escapedHexChar = Regex(r"\\0?[xX][0-9a-fA-F]+").setParseAction(lambda s,l,t:unichr(int(t[0][1:],16)))
+_escapedOctChar = Regex(r"\\0[0-7]+").setParseAction(lambda s,l,t:unichr(int(t[0][1:],8)))
+_singleChar = _escapedPunc | _escapedHexChar | _escapedOctChar | Word(_printables_less_backslash,exact=1)
+_charRange = Group(_singleChar + Suppress("-") + _singleChar)
+_reBracketExpr = Literal("[") + Optional("^").setResultsName("negate") + Group( OneOrMore( _charRange | _singleChar ) ).setResultsName("body") + "]"
+
+_expanded = lambda p: (isinstance(p,ParseResults) and ''.join([ unichr(c) for c in range(ord(p[0]),ord(p[1])+1) ]) or p)
+
+def srange(s):
+    r"""Helper to easily define string ranges for use in Word construction.  Borrows
+       syntax from regexp '[]' string range definitions::
+          srange("[0-9]")   -> "0123456789"
+          srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
+          srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"
+       The input string must be enclosed in []'s, and the returned string is the expanded
+       character set joined into a single string.
+       The values enclosed in the []'s may be::
+          a single character
+          an escaped character with a leading backslash (such as \- or \])
+          an escaped hex character with a leading '\x' (\x21, which is a '!' character) 
+            (\0x## is also supported for backwards compatibility) 
+          an escaped octal character with a leading '\0' (\041, which is a '!' character)
+          a range of any of the above, separated by a dash ('a-z', etc.)
+          any combination of the above ('aeiouy', 'a-zA-Z0-9_$', etc.)
+    """
+    try:
+        return "".join([_expanded(part) for part in _reBracketExpr.parseString(s).body])
+    except:
+        return ""
+
+def matchOnlyAtCol(n):
+    """Helper method for defining parse actions that require matching at a specific
+       column in the input text.
+    """
+    def verifyCol(strg,locn,toks):
+        if col(locn,strg) != n:
+            raise ParseException(strg,locn,"matched token not at column %d" % n)
+    return verifyCol
+
+def replaceWith(replStr):
+    """Helper method for common parse actions that simply return a literal value.  Especially
+       useful when used with C{transformString()}.
+    """
+    def _replFunc(*args):
+        return [replStr]
+    return _replFunc
+
+def removeQuotes(s,l,t):
+    """Helper parse action for removing quotation marks from parsed quoted strings.
+       To use, add this parse action to quoted string using::
+         quotedString.setParseAction( removeQuotes )
+    """
+    return t[0][1:-1]
+
+def upcaseTokens(s,l,t):
+    """Helper parse action to convert tokens to upper case."""
+    return [ tt.upper() for tt in map(_ustr,t) ]
+
+def downcaseTokens(s,l,t):
+    """Helper parse action to convert tokens to lower case."""
+    return [ tt.lower() for tt in map(_ustr,t) ]
+
+def keepOriginalText(s,startLoc,t):
+    """DEPRECATED - use new helper method C{originalTextFor}.
+       Helper parse action to preserve original parsed text,
+       overriding any nested parse actions."""
+    try:
+        endloc = getTokensEndLoc()
+    except ParseException:
+        raise ParseFatalException("incorrect usage of keepOriginalText - may only be called as a parse action")
+    del t[:]
+    t += ParseResults(s[startLoc:endloc])
+    return t
+
+def getTokensEndLoc():
+    """Method to be called from within a parse action to determine the end
+       location of the parsed tokens."""
+    import inspect
+    fstack = inspect.stack()
+    try:
+        # search up the stack (through intervening argument normalizers) for correct calling routine
+        for f in fstack[2:]:
+            if f[3] == "_parseNoCache":
+                endloc = f[0].f_locals["loc"]
+                return endloc
+        else:
+            raise ParseFatalException("incorrect usage of getTokensEndLoc - may only be called from within a parse action")
+    finally:
+        del fstack
+
+def _makeTags(tagStr, xml):
+    """Internal helper to construct opening and closing tag expressions, given a tag name"""
+    if isinstance(tagStr,basestring):
+        resname = tagStr
+        tagStr = Keyword(tagStr, caseless=not xml)
+    else:
+        resname = tagStr.name
+
+    tagAttrName = Word(alphas,alphanums+"_-:")
+    if (xml):
+        tagAttrValue = dblQuotedString.copy().setParseAction( removeQuotes )
+        openTag = Suppress("<") + tagStr("tag") + \
+                Dict(ZeroOrMore(Group( tagAttrName + Suppress("=") + tagAttrValue ))) + \
+                Optional("/",default=[False]).setResultsName("empty").setParseAction(lambda s,l,t:t[0]=='/') + Suppress(">")
+    else:
+        printablesLessRAbrack = "".join( [ c for c in printables if c not in ">" ] )
+        tagAttrValue = quotedString.copy().setParseAction( removeQuotes ) | Word(printablesLessRAbrack)
+        openTag = Suppress("<") + tagStr("tag") + \
+                Dict(ZeroOrMore(Group( tagAttrName.setParseAction(downcaseTokens) + \
+                Optional( Suppress("=") + tagAttrValue ) ))) + \
+                Optional("/",default=[False]).setResultsName("empty").setParseAction(lambda s,l,t:t[0]=='/') + Suppress(">")
+    closeTag = Combine(_L("</") + tagStr + ">")
+
+    openTag = openTag.setResultsName("start"+"".join(resname.replace(":"," ").title().split())).setName("<%s>" % tagStr)
+    closeTag = closeTag.setResultsName("end"+"".join(resname.replace(":"," ").title().split())).setName("</%s>" % tagStr)
+    openTag.tag = resname
+    closeTag.tag = resname
+    return openTag, closeTag
+
+def makeHTMLTags(tagStr):
+    """Helper to construct opening and closing tag expressions for HTML, given a tag name"""
+    return _makeTags( tagStr, False )
+
+def makeXMLTags(tagStr):
+    """Helper to construct opening and closing tag expressions for XML, given a tag name"""
+    return _makeTags( tagStr, True )
+
+def withAttribute(*args,**attrDict):
+    """Helper to create a validating parse action to be used with start tags created
+       with C{makeXMLTags} or C{makeHTMLTags}. Use C{withAttribute} to qualify a starting tag
+       with a required attribute value, to avoid false matches on common tags such as
+       C{<TD>} or C{<DIV>}.
+
+       Call C{withAttribute} with a series of attribute names and values. Specify the list
+       of filter attributes names and values as:
+        - keyword arguments, as in C{(align="right")}, or
+        - as an explicit dict with C{**} operator, when an attribute name is also a Python
+          reserved word, as in C{**{"class":"Customer", "align":"right"}}
+        - a list of name-value tuples, as in ( ("ns1:class", "Customer"), ("ns2:align","right") )
+       For attribute names with a namespace prefix, you must use the second form.  Attribute
+       names are matched insensitive to upper/lower case.
+
+       To verify that the attribute exists, but without specifying a value, pass
+       C{withAttribute.ANY_VALUE} as the value.
+       """
+    if args:
+        attrs = args[:]
+    else:
+        attrs = attrDict.items()
+    attrs = [(k,v) for k,v in attrs]
+    def pa(s,l,tokens):
+        for attrName,attrValue in attrs:
+            if attrName not in tokens:
+                raise ParseException(s,l,"no matching attribute " + attrName)
+            if attrValue != withAttribute.ANY_VALUE and tokens[attrName] != attrValue:
+                raise ParseException(s,l,"attribute '%s' has value '%s', must be '%s'" %
+                                            (attrName, tokens[attrName], attrValue))
+    return pa
+withAttribute.ANY_VALUE = object()
+
+opAssoc = _Constants()
+opAssoc.LEFT = object()
+opAssoc.RIGHT = object()
+
+def operatorPrecedence( baseExpr, opList ):
+    """Helper method for constructing grammars of expressions made up of
+       operators working in a precedence hierarchy.  Operators may be unary or
+       binary, left- or right-associative.  Parse actions can also be attached
+       to operator expressions.
+
+       Parameters:
+        - baseExpr - expression representing the most basic element for the nested
+        - opList - list of tuples, one for each operator precedence level in the
+          expression grammar; each tuple is of the form
+          (opExpr, numTerms, rightLeftAssoc, parseAction), where:
+           - opExpr is the pyparsing expression for the operator;
+              may also be a string, which will be converted to a Literal;
+              if numTerms is 3, opExpr is a tuple of two expressions, for the
+              two operators separating the 3 terms
+           - numTerms is the number of terms for this operator (must
+              be 1, 2, or 3)
+           - rightLeftAssoc is the indicator whether the operator is
+              right or left associative, using the pyparsing-defined
+              constants opAssoc.RIGHT and opAssoc.LEFT.
+           - parseAction is the parse action to be associated with
+              expressions matching this operator expression (the
+              parse action tuple member may be omitted)
+    """
+    ret = Forward()
+    lastExpr = baseExpr | ( Suppress('(') + ret + Suppress(')') )
+    for i,operDef in enumerate(opList):
+        opExpr,arity,rightLeftAssoc,pa = (operDef + (None,))[:4]
+        if arity == 3:
+            if opExpr is None or len(opExpr) != 2:
+                raise ValueError("if numterms=3, opExpr must be a tuple or list of two expressions")
+            opExpr1, opExpr2 = opExpr
+        thisExpr = Forward()#.setName("expr%d" % i)
+        if rightLeftAssoc == opAssoc.LEFT:
+            if arity == 1:
+                matchExpr = FollowedBy(lastExpr + opExpr) + Group( lastExpr + OneOrMore( opExpr ) )
+            elif arity == 2:
+                if opExpr is not None:
+                    matchExpr = FollowedBy(lastExpr + opExpr + lastExpr) + Group( lastExpr + OneOrMore( opExpr + lastExpr ) )
+                else:
+                    matchExpr = FollowedBy(lastExpr+lastExpr) + Group( lastExpr + OneOrMore(lastExpr) )
+            elif arity == 3:
+                matchExpr = FollowedBy(lastExpr + opExpr1 + lastExpr + opExpr2 + lastExpr) + \
+                            Group( lastExpr + opExpr1 + lastExpr + opExpr2 + lastExpr )
+            else:
+                raise ValueError("operator must be unary (1), binary (2), or ternary (3)")
+        elif rightLeftAssoc == opAssoc.RIGHT:
+            if arity == 1:
+                # try to avoid LR with this extra test
+                if not isinstance(opExpr, Optional):
+                    opExpr = Optional(opExpr)
+                matchExpr = FollowedBy(opExpr.expr + thisExpr) + Group( opExpr + thisExpr )
+            elif arity == 2:
+                if opExpr is not None:
+                    matchExpr = FollowedBy(lastExpr + opExpr + thisExpr) + Group( lastExpr + OneOrMore( opExpr + thisExpr ) )
+                else:
+                    matchExpr = FollowedBy(lastExpr + thisExpr) + Group( lastExpr + OneOrMore( thisExpr ) )
+            elif arity == 3:
+                matchExpr = FollowedBy(lastExpr + opExpr1 + thisExpr + opExpr2 + thisExpr) + \
+                            Group( lastExpr + opExpr1 + thisExpr + opExpr2 + thisExpr )
+            else:
+                raise ValueError("operator must be unary (1), binary (2), or ternary (3)")
+        else:
+            raise ValueError("operator must indicate right or left associativity")
+        if pa:
+            matchExpr.setParseAction( pa )
+        thisExpr << ( matchExpr | lastExpr )
+        lastExpr = thisExpr
+    ret << lastExpr
+    return ret
+
+dblQuotedString = Regex(r'"(?:[^"\n\r\\]|(?:"")|(?:\\x[0-9a-fA-F]+)|(?:\\.))*"').setName("string enclosed in double quotes")
+sglQuotedString = Regex(r"'(?:[^'\n\r\\]|(?:'')|(?:\\x[0-9a-fA-F]+)|(?:\\.))*'").setName("string enclosed in single quotes")
+quotedString = Regex(r'''(?:"(?:[^"\n\r\\]|(?:"")|(?:\\x[0-9a-fA-F]+)|(?:\\.))*")|(?:'(?:[^'\n\r\\]|(?:'')|(?:\\x[0-9a-fA-F]+)|(?:\\.))*')''').setName("quotedString using single or double quotes")
+unicodeString = Combine(_L('u') + quotedString.copy())
+
+def nestedExpr(opener="(", closer=")", content=None, ignoreExpr=quotedString.copy()):
+    """Helper method for defining nested lists enclosed in opening and closing
+       delimiters ("(" and ")" are the default).
+
+       Parameters:
+        - opener - opening character for a nested list (default="("); can also be a pyparsing expression
+        - closer - closing character for a nested list (default=")"); can also be a pyparsing expression
+        - content - expression for items within the nested lists (default=None)
+        - ignoreExpr - expression for ignoring opening and closing delimiters (default=quotedString)
+
+       If an expression is not provided for the content argument, the nested
+       expression will capture all whitespace-delimited content between delimiters
+       as a list of separate values.
+
+       Use the C{ignoreExpr} argument to define expressions that may contain
+       opening or closing characters that should not be treated as opening
+       or closing characters for nesting, such as quotedString or a comment
+       expression.  Specify multiple expressions using an C{L{Or}} or C{L{MatchFirst}}.
+       The default is L{quotedString}, but if no expressions are to be ignored,
+       then pass C{None} for this argument.
+    """
+    if opener == closer:
+        raise ValueError("opening and closing strings cannot be the same")
+    if content is None:
+        if isinstance(opener,basestring) and isinstance(closer,basestring):
+            if len(opener) == 1 and len(closer)==1:
+                if ignoreExpr is not None:
+                    content = (Combine(OneOrMore(~ignoreExpr +
+                                    CharsNotIn(opener+closer+ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+                else:
+                    content = (empty.copy()+CharsNotIn(opener+closer+ParserElement.DEFAULT_WHITE_CHARS
+                                ).setParseAction(lambda t:t[0].strip()))
+            else:
+                if ignoreExpr is not None:
+                    content = (Combine(OneOrMore(~ignoreExpr + 
+                                    ~Literal(opener) + ~Literal(closer) +
+                                    CharsNotIn(ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+                else:
+                    content = (Combine(OneOrMore(~Literal(opener) + ~Literal(closer) +
+                                    CharsNotIn(ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+        else:
+            raise ValueError("opening and closing arguments must be strings if no content expression is given")
+    ret = Forward()
+    if ignoreExpr is not None:
+        ret << Group( Suppress(opener) + ZeroOrMore( ignoreExpr | ret | content ) + Suppress(closer) )
+    else:
+        ret << Group( Suppress(opener) + ZeroOrMore( ret | content )  + Suppress(closer) )
+    return ret
+
+def indentedBlock(blockStatementExpr, indentStack, indent=True):
+    """Helper method for defining space-delimited indentation blocks, such as
+       those used to define block statements in Python source code.
+
+       Parameters:
+        - blockStatementExpr - expression defining syntax of statement that
+            is repeated within the indented block
+        - indentStack - list created by caller to manage indentation stack
+            (multiple statementWithIndentedBlock expressions within a single grammar
+            should share a common indentStack)
+        - indent - boolean indicating whether block must be indented beyond the
+            the current level; set to False for block of left-most statements
+            (default=True)
+
+       A valid block must contain at least one C{blockStatement}.
+    """
+    def checkPeerIndent(s,l,t):
+        if l >= len(s): return
+        curCol = col(l,s)
+        if curCol != indentStack[-1]:
+            if curCol > indentStack[-1]:
+                raise ParseFatalException(s,l,"illegal nesting")
+            raise ParseException(s,l,"not a peer entry")
+
+    def checkSubIndent(s,l,t):
+        curCol = col(l,s)
+        if curCol > indentStack[-1]:
+            indentStack.append( curCol )
+        else:
+            raise ParseException(s,l,"not a subentry")
+
+    def checkUnindent(s,l,t):
+        if l >= len(s): return
+        curCol = col(l,s)
+        if not(indentStack and curCol < indentStack[-1] and curCol <= indentStack[-2]):
+            raise ParseException(s,l,"not an unindent")
+        indentStack.pop()
+
+    NL = OneOrMore(LineEnd().setWhitespaceChars("\t ").suppress())
+    INDENT = Empty() + Empty().setParseAction(checkSubIndent)
+    PEER   = Empty().setParseAction(checkPeerIndent)
+    UNDENT = Empty().setParseAction(checkUnindent)
+    if indent:
+        smExpr = Group( Optional(NL) +
+            #~ FollowedBy(blockStatementExpr) +
+            INDENT + (OneOrMore( PEER + Group(blockStatementExpr) + Optional(NL) )) + UNDENT)
+    else:
+        smExpr = Group( Optional(NL) +
+            (OneOrMore( PEER + Group(blockStatementExpr) + Optional(NL) )) )
+    blockStatementExpr.ignore(_bslash + LineEnd())
+    return smExpr
+
+alphas8bit = srange(r"[\0xc0-\0xd6\0xd8-\0xf6\0xf8-\0xff]")
+punc8bit = srange(r"[\0xa1-\0xbf\0xd7\0xf7]")
+
+anyOpenTag,anyCloseTag = makeHTMLTags(Word(alphas,alphanums+"_:"))
+commonHTMLEntity = Combine(_L("&") + oneOf("gt lt amp nbsp quot").setResultsName("entity") +";").streamline()
+_htmlEntityMap = dict(zip("gt lt amp nbsp quot".split(),'><& "'))
+replaceHTMLEntity = lambda t : t.entity in _htmlEntityMap and _htmlEntityMap[t.entity] or None
+
+# it's easy to get these comment structures wrong - they're very common, so may as well make them available
+cStyleComment = Regex(r"/\*(?:[^*]*\*+)+?/").setName("C style comment")
+
+htmlComment = Regex(r"<!--[\s\S]*?-->")
+restOfLine = Regex(r".*").leaveWhitespace()
+dblSlashComment = Regex(r"\/\/(\\\n|.)*").setName("// comment")
+cppStyleComment = Regex(r"/(?:\*(?:[^*]*\*+)+?/|/[^\n]*(?:\n[^\n]*)*?(?:(?<!\\)|\Z))").setName("C++ style comment")
+
+javaStyleComment = cppStyleComment
+pythonStyleComment = Regex(r"#.*").setName("Python style comment")
+_noncomma = "".join( [ c for c in printables if c != "," ] )
+_commasepitem = Combine(OneOrMore(Word(_noncomma) +
+                                  Optional( Word(" \t") +
+                                            ~Literal(",") + ~LineEnd() ) ) ).streamline().setName("commaItem")
+commaSeparatedList = delimitedList( Optional( quotedString.copy() | _commasepitem, default="") ).setName("commaSeparatedList")
+
+
+if __name__ == "__main__":
+
+    def test( teststring ):
+        try:
+            tokens = simpleSQL.parseString( teststring )
+            tokenlist = tokens.asList()
+            print (teststring + "->"   + str(tokenlist))
+            print ("tokens = "         + str(tokens))
+            print ("tokens.columns = " + str(tokens.columns))
+            print ("tokens.tables = "  + str(tokens.tables))
+            print (tokens.asXML("SQL",True))
+        except ParseBaseException:
+            err = sys.exc_info()[1]
+            print (teststring + "->")
+            print (err.line)
+            print (" "*(err.column-1) + "^")
+            print (err)
+        print()
+
+    selectToken    = CaselessLiteral( "select" )
+    fromToken      = CaselessLiteral( "from" )
+
+    ident          = Word( alphas, alphanums + "_$" )
+    columnName     = delimitedList( ident, ".", combine=True ).setParseAction( upcaseTokens )
+    columnNameList = Group( delimitedList( columnName ) )#.setName("columns")
+    tableName      = delimitedList( ident, ".", combine=True ).setParseAction( upcaseTokens )
+    tableNameList  = Group( delimitedList( tableName ) )#.setName("tables")
+    simpleSQL      = ( selectToken + \
+                     ( '*' | columnNameList ).setResultsName( "columns" ) + \
+                     fromToken + \
+                     tableNameList.setResultsName( "tables" ) )
+
+    test( "SELECT * from XYZZY, ABC" )
+    test( "select * from SYS.XYZZY" )
+    test( "Select A from Sys.dual" )
+    test( "Select AA,BB,CC from Sys.dual" )
+    test( "Select A, B, C from Sys.dual" )
+    test( "Select A, B, C from Sys.dual" )
+    test( "Xelect A, B, C from Sys.dual" )
+    test( "Select A, B, C frox Sys.dual" )
+    test( "Select" )
+    test( "Select ^^^ frox Sys.dual" )
+    test( "Select A, B, C from Sys.dual, Table2   " )
diff --git a/libpathod/handlers.py b/libpathod/handlers.py
new file mode 100644
index 00000000..a697304c
--- /dev/null
+++ b/libpathod/handlers.py
@@ -0,0 +1,45 @@
+import urllib
+import tornado.web
+import rparse
+
+class _Page(tornado.web.RequestHandler):
+    def render(self, name, **kwargs):
+        b = self.application.templates.load(name).generate(**kwargs)
+        self.write(b)
+
+
+class Index(_Page):
+    def get(self):
+        self.render("index.html", section="main")
+
+
+class Preview(_Page):
+    def get(self):
+        self.render("index.html", section="main")
+
+
+class Help(_Page):
+    def get(self):
+        self.render("help.html", section="help")
+
+
+class Log(_Page):
+    def get(self):
+        self.render("log.html", section="log")
+
+
+class Pathod(object):
+    anchor = "/p/"
+    def __init__(self, application, request, **settings):
+        self.application, self.request, self.settings = application, request, settings
+        spec = urllib.unquote(self.request.uri)[len(self.anchor):]
+        try:
+            self.response = rparse.parse(self.settings, spec)
+        except rparse.ParseException, v:
+            self.response = rparse.StubResponse(
+                800,
+                "Error parsing response spec:" + str(v)
+            )
+
+    def _execute(self, transforms, *args, **kwargs):
+        self.response.render(self.request)
diff --git a/libpathod/http.py b/libpathod/http.py
new file mode 100644
index 00000000..9f3f7e15
--- /dev/null
+++ b/libpathod/http.py
@@ -0,0 +1,103 @@
+
+CONTINUE                        = 100
+SWITCHING                       = 101
+OK                              = 200
+CREATED                         = 201
+ACCEPTED                        = 202
+NON_AUTHORITATIVE_INFORMATION   = 203
+NO_CONTENT                      = 204
+RESET_CONTENT                   = 205
+PARTIAL_CONTENT                 = 206
+MULTI_STATUS                    = 207
+
+MULTIPLE_CHOICE                 = 300
+MOVED_PERMANENTLY               = 301
+FOUND                           = 302
+SEE_OTHER                       = 303
+NOT_MODIFIED                    = 304
+USE_PROXY                       = 305
+TEMPORARY_REDIRECT              = 307
+
+BAD_REQUEST                     = 400
+UNAUTHORIZED                    = 401
+PAYMENT_REQUIRED                = 402
+FORBIDDEN                       = 403
+NOT_FOUND                       = 404
+NOT_ALLOWED                     = 405
+NOT_ACCEPTABLE                  = 406
+PROXY_AUTH_REQUIRED             = 407
+REQUEST_TIMEOUT                 = 408
+CONFLICT                        = 409
+GONE                            = 410
+LENGTH_REQUIRED                 = 411
+PRECONDITION_FAILED             = 412
+REQUEST_ENTITY_TOO_LARGE        = 413
+REQUEST_URI_TOO_LONG            = 414
+UNSUPPORTED_MEDIA_TYPE          = 415
+REQUESTED_RANGE_NOT_SATISFIABLE = 416
+EXPECTATION_FAILED              = 417
+
+INTERNAL_SERVER_ERROR           = 500
+NOT_IMPLEMENTED                 = 501
+BAD_GATEWAY                     = 502
+SERVICE_UNAVAILABLE             = 503
+GATEWAY_TIMEOUT                 = 504
+HTTP_VERSION_NOT_SUPPORTED      = 505
+INSUFFICIENT_STORAGE_SPACE      = 507
+NOT_EXTENDED                    = 510
+
+RESPONSES = {
+    # 100
+    CONTINUE: "Continue",
+    SWITCHING: "Switching Protocols",
+
+    # 200
+    OK: "OK",
+    CREATED: "Created",
+    ACCEPTED: "Accepted",
+    NON_AUTHORITATIVE_INFORMATION: "Non-Authoritative Information",
+    NO_CONTENT: "No Content",
+    RESET_CONTENT: "Reset Content.",
+    PARTIAL_CONTENT: "Partial Content",
+    MULTI_STATUS: "Multi-Status",
+
+    # 300
+    MULTIPLE_CHOICE: "Multiple Choices",
+    MOVED_PERMANENTLY: "Moved Permanently",
+    FOUND: "Found",
+    SEE_OTHER: "See Other",
+    NOT_MODIFIED: "Not Modified",
+    USE_PROXY: "Use Proxy",
+    # 306 not defined??
+    TEMPORARY_REDIRECT: "Temporary Redirect",
+
+    # 400
+    BAD_REQUEST: "Bad Request",
+    UNAUTHORIZED: "Unauthorized",
+    PAYMENT_REQUIRED: "Payment Required",
+    FORBIDDEN: "Forbidden",
+    NOT_FOUND: "Not Found",
+    NOT_ALLOWED: "Method Not Allowed",
+    NOT_ACCEPTABLE: "Not Acceptable",
+    PROXY_AUTH_REQUIRED: "Proxy Authentication Required",
+    REQUEST_TIMEOUT: "Request Time-out",
+    CONFLICT: "Conflict",
+    GONE: "Gone",
+    LENGTH_REQUIRED: "Length Required",
+    PRECONDITION_FAILED: "Precondition Failed",
+    REQUEST_ENTITY_TOO_LARGE: "Request Entity Too Large",
+    REQUEST_URI_TOO_LONG: "Request-URI Too Long",
+    UNSUPPORTED_MEDIA_TYPE: "Unsupported Media Type",
+    REQUESTED_RANGE_NOT_SATISFIABLE: "Requested Range not satisfiable",
+    EXPECTATION_FAILED: "Expectation Failed",
+
+    # 500
+    INTERNAL_SERVER_ERROR: "Internal Server Error",
+    NOT_IMPLEMENTED: "Not Implemented",
+    BAD_GATEWAY: "Bad Gateway",
+    SERVICE_UNAVAILABLE: "Service Unavailable",
+    GATEWAY_TIMEOUT: "Gateway Time-out",
+    HTTP_VERSION_NOT_SUPPORTED: "HTTP Version not supported",
+    INSUFFICIENT_STORAGE_SPACE: "Insufficient Storage Space",
+    NOT_EXTENDED: "Not Extended"
+}
diff --git a/libpathod/rparse.py b/libpathod/rparse.py
new file mode 100644
index 00000000..f3985d04
--- /dev/null
+++ b/libpathod/rparse.py
@@ -0,0 +1,429 @@
+import operator, string, random, sys, time
+import contrib.pyparsing as pp
+import http, utils
+import tornado.ioloop
+
+TESTING = False
+
+class ParseException(Exception): pass
+
+
+DATATYPES = dict(
+    ascii_letters = string.ascii_letters,
+    ascii_lowercase = string.ascii_lowercase,
+    ascii_uppercase = string.ascii_uppercase,
+    digits = string.digits,
+    hexdigits = string.hexdigits,
+    letters = string.letters,
+    lowercase = string.lowercase,
+    octdigits = string.octdigits,
+    printable = string.printable,
+    punctuation = string.punctuation,
+    uppercase = string.uppercase,
+    whitespace = string.whitespace,
+    ascii = string.printable,
+    bytes = "".join(chr(i) for i in range(256))
+)
+
+
+v_integer = pp.Regex(r"[+-]?\d+")\
+    .setName("integer")\
+    .setParseAction(lambda toks: int(toks[0]))
+
+v_string = pp.MatchFirst(
+    [
+        pp.QuotedString("\"", escChar="\\", unquoteResults=True),
+        pp.QuotedString("'", escChar="\\", unquoteResults=True),
+    ]
+)
+
+v_literal = pp.MatchFirst(
+    [
+        v_string,
+        pp.Word("".join(i for i in pp.printables if i not in ",:"))
+    ]
+)
+
+
+class LiteralGenerator:
+    def __init__(self, s):
+        self.s = s
+
+    def __eq__(self, other):
+        return self[:] == other
+
+    def __len__(self):
+        return len(self.s)
+
+    def __getitem__(self, x):
+        return self.s.__getitem__(x)
+
+    def __getslice__(self, a, b):
+        return self.s.__getslice__(a, b)
+
+
+class RandomGenerator:
+    def __init__(self, chars, length):
+        self.chars = chars
+        self.length = length
+
+    def __len__(self):
+        return self.length
+
+    def __getitem__(self, x):
+        return random.choice(self.chars)
+
+    def __getslice__(self, a, b):
+        b = min(b, self.length)
+        return "".join(random.choice(self.chars) for x in range(a, b))
+
+
+class FileGenerator:
+    def __init__(self, path):
+        self.path = path
+
+
+class ValueLiteral:
+    def __init__(self, val):
+        self.val = val
+
+    def get_generator(self, settings):
+        return LiteralGenerator(self.val)
+
+    @classmethod
+    def expr(klass):
+        e = v_literal.copy()
+        return e.setParseAction(lambda x: klass(*x))
+
+    def __str__(self):
+        return self.val
+
+
+class ValueGenerate:
+    UNITS = dict(
+        b = 1024**0,
+        k = 1024**1,
+        m = 1024**2,
+        g = 1024**3,
+        t = 1024**4,
+    )
+    def __init__(self, usize, unit, datatype):
+        if not unit:
+            unit = "b"
+        self.usize, self.unit, self.datatype = usize, unit, datatype
+
+    def bytes(self):
+        return self.usize * self.UNITS[self.unit]
+
+    def get_generator(self, settings):
+        return RandomGenerator(DATATYPES[self.datatype], self.bytes())
+
+    @classmethod
+    def expr(klass):
+        e = pp.Literal("!").suppress() + v_integer
+
+        u = reduce(operator.or_, [pp.Literal(i) for i in klass.UNITS.keys()])
+        e = e + pp.Optional(u, default=None)
+
+        s = pp.Literal(":").suppress()
+        s += reduce(operator.or_, [pp.Literal(i) for i in DATATYPES.keys()])
+        e += pp.Optional(s, default="bytes")
+        return e.setParseAction(lambda x: klass(*x))
+
+    def __str__(self):
+        return "!%s%s:%s"%(self.usize, self.unit, self.datatype)
+
+
+class ValueFile:
+    def __init__(self, path):
+        self.path = path
+
+    @classmethod
+    def expr(klass):
+        e = pp.Literal("<").suppress()
+        e = e + v_literal
+        return e.setParseAction(lambda x: klass(*x))
+
+    def get_generator(self, settings):
+        raise NotImplementedError
+
+    def __str__(self):
+        return "<%s"%(self.path)
+
+
+Value = pp.MatchFirst(
+    [
+        ValueGenerate.expr(),
+        ValueFile.expr(),
+        ValueLiteral.expr()
+    ]
+)
+
+
+class Body:
+    def __init__(self, value):
+        self.value = value
+
+    def mod_response(self, settings, r):
+        r.body = self.value.get_generator(settings)
+
+    @classmethod
+    def expr(klass):
+        e = pp.Literal("b:").suppress()
+        e = e + Value
+        return e.setParseAction(lambda x: klass(*x))
+
+
+class _Pause:
+    def __init__(self, value):
+        self.value = value
+
+    @classmethod
+    def expr(klass):
+        e = pp.Literal("p%s:"%klass.sub).suppress()
+        e = e + pp.MatchFirst(
+                    [
+                        v_integer,
+                        pp.Literal("forever")
+                    ]
+                )
+        return e.setParseAction(lambda x: klass(*x))
+
+
+class PauseBefore(_Pause):
+    sub = "b"
+    def mod_response(self, settings, r):
+        r.pauses.append((0, self.value))
+
+
+class PauseAfter(_Pause):
+    sub = "a"
+    def mod_response(self, settings, r):
+        r.pauses.append((sys.maxint, self.value))
+
+
+class PauseRandom(_Pause):
+    sub = "r"
+    def mod_response(self, settings, r):
+        r.pauses.append(("random", self.value))
+
+
+
+class _Disconnect:
+    def __init__(self, value):
+        self.value = value
+
+    @classmethod
+    def expr(klass):
+        e = pp.Literal("d%s"%klass.sub)
+        return e.setParseAction(klass)
+
+
+class DisconnectBefore(_Disconnect):
+    sub = "b"
+    def mod_response(self, settings, r):
+        r.pauses.append((0, self.value))
+
+
+class DisconnectRandom(_Disconnect):
+    sub = "r"
+    def mod_response(self, settings, r):
+        r.pauses.append(("random", self.value))
+
+
+class Header:
+    def __init__(self, key, value):
+        self.key, self.value = key, value
+
+    def mod_response(self, settings, r):
+        r.headers.append(
+            (
+                self.key.get_generator(settings),
+                self.value.get_generator(settings)
+            )
+        )
+
+    @classmethod
+    def expr(klass):
+        e = pp.Literal("h:").suppress()
+        e += Value
+        e += pp.Literal(":").suppress()
+        e += Value
+        return e.setParseAction(lambda x: klass(*x))
+
+
+class Code:
+    def __init__(self, code, msg=None):
+        self.code, self.msg = code, msg
+        if msg is None:
+            self.msg = ValueLiteral(http.RESPONSES.get(self.code, "Unknown code"))
+
+    def mod_response(self, settings, r):
+        r.code = self.code
+        r.msg = self.msg.get_generator(settings)
+
+    @classmethod
+    def expr(klass):
+        e = v_integer
+        e = e + pp.Optional(
+            pp.Literal(":").suppress() + Value
+        )
+        return e.setParseAction(lambda x: klass(*x))
+
+
+BLOCKSIZE = 1024
+class Response:
+    comps = [
+        Body,
+        Header,
+        PauseBefore,
+        PauseAfter,
+        PauseRandom,
+        DisconnectBefore,
+        DisconnectRandom,
+    ]
+    version = "HTTP/1.1"
+    code = 200
+    msg = LiteralGenerator(http.RESPONSES[code])
+    body = LiteralGenerator("OK")
+    def __init__(self, settings, tokens):
+        self.tokens = tokens
+        self.headers = []
+        self.pauses = []
+        for i in tokens:
+            i.mod_response(settings, self)
+        if self.body and not self.get_header("Content-Length"):
+            self.headers.append(
+                (
+                    LiteralGenerator("Content-Length"),
+                    LiteralGenerator(str(len(self.body))),
+                )
+            )
+
+    def get_header(self, hdr):
+        for k, v in self.headers:
+            if k[:len(hdr)].lower() == hdr:
+                return v
+        return None
+
+    @classmethod
+    def expr(klass):
+        parts = [i.expr() for i in klass.comps]
+        atom = pp.MatchFirst(parts)
+        resp = pp.And(
+            [
+                Code.expr(),
+                pp.ZeroOrMore(pp.Literal(",").suppress() + atom)
+            ]
+        )
+        return resp
+
+    def length(self):
+        l = len("%s %s "%(self.version, self.code))
+        l += len(self.msg)
+        l += 2
+        for i in self.headers:
+            l += len(i[0]) + len(i[1])
+            l += 4
+        l += 2
+        l += len(self.body)
+        return l
+
+    def ready_randoms(self, l, lst):
+        ret = []
+        for k, v in lst:
+            if k == "random":
+                ret.append((random.randrange(l), v))
+            else:
+                ret.append((k, v))
+        ret.sort()
+        return ret
+
+    def add_timeout(self, s, callback):
+        if TESTING:
+            callback()
+        else:
+            tornado.ioloop.IOLoop.instance().add_timeout(time.time() + s, callback)
+
+    def write_values(self, fp, vals, pauses, disconnect, sofar=0, skip=0, blocksize=BLOCKSIZE):
+        if disconnect == "before":
+            fp.finish()
+            return
+        while vals:
+            part = vals.pop()
+            for i in range(skip, len(part), blocksize):
+                d = part[i:i+blocksize]
+                if pauses and pauses[-1][0] < (sofar + len(d)):
+                    p = pauses.pop()
+                    offset = p[0]-sofar
+                    vals.append(part)
+                    def pause_callback():
+                        self.write_values(
+                            fp, vals, pauses, disconnect,
+                            sofar=sofar+offset,
+                            skip=i+offset,
+                            blocksize=blocksize
+                        )
+                    def flushed_callback():
+                        # Data has been flushed, set the timeout.
+                        self.add_timeout(p[1], pause_callback)
+                    fp.write(d[:offset], callback=flushed_callback)
+                    return
+                fp.write(d)
+                sofar += len(d)
+            skip = 0
+        fp.finish()
+
+    def render(self, fp):
+        hdrs = []
+        for k, v in self.headers:
+            hdrs.extend([
+                k,
+                ": ",
+                v,
+                "\r\n",
+            ])
+        vals = [
+            "%s %s "%(self.version, self.code),
+            self.msg,
+            "\r\n",
+        ]
+        vals.extend(hdrs)
+        vals.extend([
+            "\r\n",
+            self.body
+        ])
+        vals.reverse()
+        pauses = self.ready_randoms(self.length(), self.pauses)
+        pauses.reverse()
+        return self.write_values(fp, vals, pauses, None)
+
+    def __str__(self):
+        parts = [
+            "%s %s"%(self.code, self.msg[:])
+        ]
+        return "\n".join(parts)
+
+
+class StubResponse:
+    def __init__(self, code, body):
+        self.code = code
+        self.msg = LiteralGenerator(http.RESPONSES.get(code, "Unknown error"))
+        self.body = LiteralGenerator(body)
+        self.headers = [
+            (
+                LiteralGenerator("Content-Type"),
+                LiteralGenerator("text/plain")
+            ),
+            (
+                LiteralGenerator("Content-Length"),
+                LiteralGenerator(str(len(self.body)))
+            )
+        ]
+
+
+def parse(settings, s):
+    try:
+        return Response(settings, Response.expr().parseString(s, parseAll=True))
+    except pp.ParseException, v:
+        raise ParseException(v)
diff --git a/libpathod/static/bootstrap.min.css b/libpathod/static/bootstrap.min.css
new file mode 100644
index 00000000..f8b9ab37
--- /dev/null
+++ b/libpathod/static/bootstrap.min.css
@@ -0,0 +1,543 @@
+article,aside,details,figcaption,figure,footer,header,hgroup,nav,section{display:block;}
+audio,canvas,video{display:inline-block;*display:inline;*zoom:1;}
+audio:not([controls]){display:none;}
+html{font-size:100%;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;}
+a:focus{outline:thin dotted;}
+a:hover,a:active{outline:0;}
+sub,sup{position:relative;font-size:75%;line-height:0;vertical-align:baseline;}
+sup{top:-0.5em;}
+sub{bottom:-0.25em;}
+img{max-width:100%;height:auto;border:0;-ms-interpolation-mode:bicubic;}
+button,input,select,textarea{margin:0;font-size:100%;vertical-align:baseline;*vertical-align:middle;}
+button,input{*overflow:visible;line-height:normal;}
+button::-moz-focus-inner,input::-moz-focus-inner{padding:0;border:0;}
+button,input[type="button"],input[type="reset"],input[type="submit"]{cursor:pointer;-webkit-appearance:button;}
+input[type="search"]{-webkit-appearance:textfield;-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box;}
+input[type="search"]::-webkit-search-decoration,input[type="search"]::-webkit-search-cancel-button{-webkit-appearance:none;}
+textarea{overflow:auto;vertical-align:top;}
+body{margin:0;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px;line-height:18px;color:#555555;background-color:#ffffff;}
+.container{width:940px;margin-left:auto;margin-right:auto;*zoom:1;}.container:before,.container:after{display:table;content:"";}
+.container:after{clear:both;}
+.fluid-container{position:relative;min-width:940px;padding-left:20px;padding-right:20px;*zoom:1;}.fluid-container:before,.fluid-container:after{display:table;content:"";}
+.fluid-container:after{clear:both;}
+.fluid-sidebar{width:220px;margin:0 20px 18px;}
+.sidebar-left{padding-left:260px;}
+.sidebar-right{padding-right:260px;}
+.sidebar-left .fluid-sidebar{float:left;margin-left:-240px;}
+.sidebar-right .fluid-sidebar{float:right;margin-right:-240px;}
+.fluid-content{float:left;width:100%;}
+a{color:#0088cc;text-decoration:none;}a:hover{color:#005580;text-decoration:underline;}
+.row{margin-left:-20px;*zoom:1;}.row:before,.row:after{display:table;content:"";}
+.row:after{clear:both;}
+[class*="span"]{float:left;margin-left:20px;}
+.span1{width:60px;}
+.span2{width:140px;}
+.span3{width:220px;}
+.span4{width:300px;}
+.span5{width:380px;}
+.span6{width:460px;}
+.span7{width:540px;}
+.span8{width:620px;}
+.span9{width:700px;}
+.span10{width:780px;}
+.span11{width:860px;}
+.span12{width:940px;}
+.offset1{margin-left:100px;}
+.offset2{margin-left:180px;}
+.offset3{margin-left:260px;}
+.offset4{margin-left:340px;}
+.offset5{margin-left:420px;}
+.offset6{margin-left:500px;}
+.offset7{margin-left:580px;}
+.offset8{margin-left:660px;}
+.offset9{margin-left:740px;}
+.offset10{margin-left:820px;}
+.offset11{margin-left:900px;}
+p{margin:0 0 9px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px;line-height:18px;}p small{font-size:11px;color:#999999;}
+h1,h2,h3,h4,h5,h6{margin:0;font-weight:bold;color:#333333;text-rendering:optimizelegibility;}h1 small,h2 small,h3 small,h4 small,h5 small,h6 small{font-weight:normal;color:#999999;}
+h1{font-size:30px;line-height:36px;}h1 small{font-size:18px;}
+h2{font-size:24px;line-height:36px;}h2 small{font-size:18px;}
+h3{line-height:27px;font-size:18px;}h3 small{font-size:14px;}
+h4,h5,h6{line-height:18px;}
+h4{font-size:14px;}h4 small{font-size:12px;}
+h5{font-size:12px;}
+h6{font-size:11px;color:#999999;text-transform:uppercase;}
+ul,ol{padding:0;margin:0 0 9px 25px;}
+ul ul,ul ol,ol ol,ol ul{margin-bottom:0;}
+ul{list-style:disc;}
+ol{list-style:decimal;}
+li{line-height:18px;}
+ul.unstyled{margin-left:0;list-style:none;}
+dl{margin-bottom:18px;}
+dt,dd{line-height:18px;}
+dt{font-weight:bold;}
+dd{margin-left:9px;}
+hr{margin:18px 0;border:0;border-top:1px solid #e5e5e5;border-bottom:1px solid #ffffff;}
+strong{font-weight:bold;}
+em{font-style:italic;}
+.muted{color:#999999;}
+abbr{font-size:90%;text-transform:uppercase;border-bottom:1px dotted #ddd;cursor:help;}
+blockquote{padding:0 0 0 15px;margin:0 0 18px;border-left:5px solid #eeeeee;}blockquote p{margin-bottom:0;font-size:16px;font-weight:300;line-height:22.5px;}
+blockquote small{display:block;line-height:18px;color:#999999;}blockquote small:before{content:'\2014 \00A0';}
+blockquote.pull-right{float:right;padding-left:0;padding-right:15px;border-left:0;border-right:5px solid #eeeeee;}blockquote.pull-right p,blockquote.pull-right small{text-align:right;}
+q:before,q:after,blockquote:before,blockquote:after{content:"";}
+address{display:block;margin-bottom:18px;line-height:18px;font-style:normal;}
+code,pre{padding:0 3px 2px;font-family:Menlo,Monaco,"Courier New",monospace;font-size:12px;color:#333333;-webkit-border-radius:3px;-moz-border-radius:3px;border-radius:3px;}
+code{padding:3px 4px;background-color:#fee9cc;color:#d14;background-color:#f7f7f9;border:1px solid #e1e1e8;}
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+.btn[disabled]{cursor:default;background-image:none;filter:progid:DXImageTransform.Microsoft.gradient(enabled = false);filter:alpha(opacity=65);-moz-opacity:0.65;opacity:0.65;-webkit-box-shadow:none;-moz-box-shadow:none;box-shadow:none;}
+.btn.large{padding:9px 14px 9px;font-size:15px;line-height:normal;-webkit-border-radius:5px;-moz-border-radius:5px;border-radius:5px;}
+.btn.small{padding:7px 9px 7px;font-size:11px;}
+:root .btn{border-radius:0 \0;}
+button.btn::-moz-focus-inner,input[type=submit].btn::-moz-focus-inner{padding:0;border:0;}
+.btn-group{position:relative;*zoom:1;}.btn-group:before,.btn-group:after{display:table;content:"";}
+.btn-group:after{clear:both;}
+.btn-group+.btn-group{margin-left:5px;}
+.btn-toolbar .btn-group{display:inline-block;}
+.btn-group .btn{position:relative;float:left;margin-left:-1px;-webkit-border-radius:0;-moz-border-radius:0;border-radius:0;}
+.btn-group .btn:first-child{margin-left:0;-webkit-border-top-left-radius:4px;-moz-border-radius-topleft:4px;border-top-left-radius:4px;-webkit-border-bottom-left-radius:4px;-moz-border-radius-bottomleft:4px;border-bottom-left-radius:4px;}
+.btn-group .btn:last-child,.btn-group .dropdown-toggle{-webkit-border-top-right-radius:4px;-moz-border-radius-topright:4px;border-top-right-radius:4px;-webkit-border-bottom-right-radius:4px;-moz-border-radius-bottomright:4px;border-bottom-right-radius:4px;}
+.btn-group .btn.large:first-child{margin-left:0;-webkit-border-top-left-radius:6px;-moz-border-radius-topleft:6px;border-top-left-radius:6px;-webkit-border-bottom-left-radius:6px;-moz-border-radius-bottomleft:6px;border-bottom-left-radius:6px;}
+.btn-group .btn.large:last-child,.btn-group .large.dropdown-toggle{-webkit-border-top-right-radius:6px;-moz-border-radius-topright:6px;border-top-right-radius:6px;-webkit-border-bottom-right-radius:6px;-moz-border-radius-bottomright:6px;border-bottom-right-radius:6px;}
+.btn-group .btn:hover,.btn-group .btn:focus,.btn-group .btn:active{z-index:2;}
+.btn-group .dropdown-toggle{padding-left:8px;padding-right:8px;-webkit-box-shadow:inset 1px 0 0 rgba(255, 255, 255, 0.125),0 1px 2px rgba(0, 0, 0, 0.05);-moz-box-shadow:inset 1px 0 0 rgba(255, 255, 255, 0.125),0 1px 2px rgba(0, 0, 0, 0.05);box-shadow:inset 1px 0 0 rgba(255, 255, 255, 0.125),0 1px 2px rgba(0, 0, 0, 0.05);}
+.btn-group.open .dropdown-menu{display:block;margin-top:1px;-webkit-border-radius:5px;-moz-border-radius:5px;border-radius:5px;}.btn-group.open .dropdown-menu.large{top:40px;}
+.btn-group.open .dropdown-toggle{background-image:none;-webkit-box-shadow:inset 0 1px 6px rgba(0, 0, 0, 0.15),0 1px 2px rgba(0, 0, 0, 0.05);-moz-box-shadow:inset 0 1px 6px rgba(0, 0, 0, 0.15),0 1px 2px rgba(0, 0, 0, 0.05);box-shadow:inset 0 1px 6px rgba(0, 0, 0, 0.15),0 1px 2px rgba(0, 0, 0, 0.05);}
+.btn .caret{margin-top:6px;margin-left:0;}
+.primary .caret,.danger .caret,.info .caret,.success .caret{border-top-color:#ffffff;filter:alpha(opacity=75);-moz-opacity:0.75;opacity:0.75;}
+.alert{padding:8px 35px 8px 14px;margin-bottom:18px;text-shadow:0 1px 0 rgba(255, 255, 255, 0.5);background-color:#fcf8e3;border:1px solid #f3edd2;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;}
+.alert,.alert-heading{color:#c09853;}
+.alert .close{*margin-top:3px;position:relative;right:-21px;}
+.alert-success{background-color:#dff0d8;border-color:#cfe8c4;}
+.alert-success,.alert-success .alert-heading{color:#468847;}
+.alert-danger,.alert-error{background-color:#f2dede;border-color:#e9c7c7;}
+.alert-danger,.alert-error,.alert-danger .alert-heading,.alert-error .alert-heading{color:#B94A48;}
+.alert-info{background-color:#d9edf7;border-color:#bfe1f2;}
+.alert-info,.alert-info .alert-heading{color:#3a87ad;}
+.alert-block{padding-top:14px;padding-bottom:14px;}
+.alert-block>p,.alert-block>ul{margin-bottom:0;}
+.alert-block p+p{margin-top:5px;}
+.thumbnails{margin-left:-20px;list-style:none;*zoom:1;}.thumbnails:before,.thumbnails:after{display:table;content:"";}
+.thumbnails:after{clear:both;}
+.thumbnails>li{float:left;margin:0 0 18px 20px;}
+.thumbnail{display:block;padding:4px;line-height:1;border:1px solid #ddd;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;-webkit-box-shadow:0 1px 1px rgba(0, 0, 0, 0.075);-moz-box-shadow:0 1px 1px rgba(0, 0, 0, 0.075);box-shadow:0 1px 1px rgba(0, 0, 0, 0.075);}
+a.thumbnail:hover{border-color:#0088cc;-webkit-box-shadow:0 1px 4px rgba(0, 105, 214, 0.25);-moz-box-shadow:0 1px 4px rgba(0, 105, 214, 0.25);box-shadow:0 1px 4px rgba(0, 105, 214, 0.25);}
+.thumbnail>img{display:block;max-width:100%;}
+.thumbnail .caption{padding:9px;}
+.label{padding:1px 3px 2px;font-size:9.75px;font-weight:bold;color:#ffffff;text-transform:uppercase;background-color:#999999;-webkit-border-radius:3px;-moz-border-radius:3px;border-radius:3px;}.label.important{background-color:#c43c35;}
+.label.warning{background-color:#f89406;}
+.label.success{background-color:#46a546;}
+.label.notice{background-color:#62cffc;}
+@-webkit-keyframes progress-bar-stripes{from{background-position:0 0;} to{background-position:40px 0;}}@keyframes progress-bar-stripes{from{background-position:0 0;} to{background-position:40px 0;}}.progress,.progress .bar{-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;}
+.progress{height:18px;margin-bottom:18px;background-color:#f9f9f9;background-image:-khtml-gradient(linear, left top, left bottom, from(#f5f5f5), to(#f9f9f9));background-image:-moz-linear-gradient(top, #f5f5f5, #f9f9f9);background-image:-ms-linear-gradient(top, #f5f5f5, #f9f9f9);background-image:-webkit-gradient(linear, left top, left bottom, color-stop(0%, #f5f5f5), color-stop(100%, #f9f9f9));background-image:-webkit-linear-gradient(top, #f5f5f5, #f9f9f9);background-image:-o-linear-gradient(top, #f5f5f5, #f9f9f9);background-image:linear-gradient(top, #f5f5f5, #f9f9f9);background-repeat:repeat-x;filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#f5f5f5', endColorstr='#f9f9f9', GradientType=0);-webkit-box-shadow:inset 0 1px 2px rgba(0, 0, 0, 0.1);-moz-box-shadow:inset 0 1px 2px rgba(0, 0, 0, 0.1);box-shadow:inset 0 1px 2px rgba(0, 0, 0, 0.1);}
+.progress .bar{width:0%;height:18px;background-color:#0480be;background-image:-khtml-gradient(linear, left top, left bottom, from(#149bdf), to(#0480be));background-image:-moz-linear-gradient(top, #149bdf, #0480be);background-image:-ms-linear-gradient(top, #149bdf, #0480be);background-image:-webkit-gradient(linear, left top, left bottom, color-stop(0%, #149bdf), color-stop(100%, #0480be));background-image:-webkit-linear-gradient(top, #149bdf, #0480be);background-image:-o-linear-gradient(top, #149bdf, #0480be);background-image:linear-gradient(top, #149bdf, #0480be);background-repeat:repeat-x;filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#149bdf', endColorstr='#0480be', GradientType=0);-webkit-box-shadow:inset 0 -1px 0 rgba(0, 0, 0, 0.15);-moz-box-shadow:inset 0 -1px 0 rgba(0, 0, 0, 0.15);box-shadow:inset 0 -1px 0 rgba(0, 0, 0, 0.15);-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;-webkit-transition:width 0.6s ease;-moz-transition:width 0.6s ease;-ms-transition:width 0.6s ease;-o-transition:width 0.6s ease;transition:width 0.6s ease;}
+.progress.striped .bar{background-color:#62c462;background-image:-webkit-gradient(linear, 0 100%, 100% 0, color-stop(0.25, rgba(255, 255, 255, 0.15)), color-stop(0.25, transparent), color-stop(0.5, transparent), color-stop(0.5, rgba(255, 255, 255, 0.15)), color-stop(0.75, rgba(255, 255, 255, 0.15)), color-stop(0.75, transparent), to(transparent));background-image:-webkit-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:-moz-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:-ms-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:-o-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);-webkit-background-size:40px 40px;-moz-background-size:40px 40px;-o-background-size:40px 40px;background-size:40px 40px;}
+.progress.active .bar{-webkit-animation:progress-bar-stripes 2s linear infinite;-moz-animation:progress-bar-stripes 2s linear infinite;animation:progress-bar-stripes 2s linear infinite;}
+.progress.danger .bar{background-color:#c43c35;background-image:-khtml-gradient(linear, left top, left bottom, from(#ee5f5b), to(#c43c35));background-image:-moz-linear-gradient(top, #ee5f5b, #c43c35);background-image:-ms-linear-gradient(top, #ee5f5b, #c43c35);background-image:-webkit-gradient(linear, left top, left bottom, color-stop(0%, #ee5f5b), color-stop(100%, #c43c35));background-image:-webkit-linear-gradient(top, #ee5f5b, #c43c35);background-image:-o-linear-gradient(top, #ee5f5b, #c43c35);background-image:linear-gradient(top, #ee5f5b, #c43c35);background-repeat:repeat-x;filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#ee5f5b', endColorstr='#c43c35', GradientType=0);}
+.progress.danger.striped .bar{background-color:#ee5f5b;background-image:-webkit-gradient(linear, 0 100%, 100% 0, color-stop(0.25, rgba(255, 255, 255, 0.15)), color-stop(0.25, transparent), color-stop(0.5, transparent), color-stop(0.5, rgba(255, 255, 255, 0.15)), color-stop(0.75, rgba(255, 255, 255, 0.15)), color-stop(0.75, transparent), to(transparent));background-image:-webkit-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:-moz-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:-ms-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:-o-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);}
+.progress.success .bar{background-color:#57a957;background-image:-khtml-gradient(linear, left top, left bottom, from(#62c462), to(#57a957));background-image:-moz-linear-gradient(top, #62c462, #57a957);background-image:-ms-linear-gradient(top, #62c462, #57a957);background-image:-webkit-gradient(linear, left top, left bottom, color-stop(0%, #62c462), color-stop(100%, #57a957));background-image:-webkit-linear-gradient(top, #62c462, #57a957);background-image:-o-linear-gradient(top, #62c462, #57a957);background-image:linear-gradient(top, #62c462, #57a957);background-repeat:repeat-x;filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#62c462', endColorstr='#57a957', GradientType=0);}
+.progress.success.striped .bar{background-color:#62c462;background-image:-webkit-gradient(linear, 0 100%, 100% 0, color-stop(0.25, rgba(255, 255, 255, 0.15)), color-stop(0.25, transparent), color-stop(0.5, transparent), color-stop(0.5, rgba(255, 255, 255, 0.15)), color-stop(0.75, rgba(255, 255, 255, 0.15)), color-stop(0.75, transparent), to(transparent));background-image:-webkit-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:-moz-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:-ms-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:-o-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);}
+.progress.info .bar{background-color:#339bb9;background-image:-khtml-gradient(linear, left top, left bottom, from(#5bc0de), to(#339bb9));background-image:-moz-linear-gradient(top, #5bc0de, #339bb9);background-image:-ms-linear-gradient(top, #5bc0de, #339bb9);background-image:-webkit-gradient(linear, left top, left bottom, color-stop(0%, #5bc0de), color-stop(100%, #339bb9));background-image:-webkit-linear-gradient(top, #5bc0de, #339bb9);background-image:-o-linear-gradient(top, #5bc0de, #339bb9);background-image:linear-gradient(top, #5bc0de, #339bb9);background-repeat:repeat-x;filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#5bc0de', endColorstr='#339bb9', GradientType=0);}
+.progress.info.striped .bar{background-color:#5bc0de;background-image:-webkit-gradient(linear, 0 100%, 100% 0, color-stop(0.25, rgba(255, 255, 255, 0.15)), color-stop(0.25, transparent), color-stop(0.5, transparent), color-stop(0.5, rgba(255, 255, 255, 0.15)), color-stop(0.75, rgba(255, 255, 255, 0.15)), color-stop(0.75, transparent), to(transparent));background-image:-webkit-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:-moz-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:-ms-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:-o-linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);background-image:linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);}
+.accordion{margin-bottom:18px;}
+.accordion-group{background-color:#f5f5f5;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;}
+.accordion-heading{padding:8px 15px;border-bottom:0;}
+.accordion-body{margin-bottom:2px;}
+.accordion-inner{padding:9px 15px;border-top:1px solid #e5e5e5;}
+.carousel{position:relative;line-height:1;}
+.carousel-inner{overflow:hidden;width:100%;position:relative;}
+.carousel .item{display:none;position:relative;-webkit-transition:0.6s ease-in-out left;-moz-transition:0.6s ease-in-out left;-ms-transition:0.6s ease-in-out left;-o-transition:0.6s ease-in-out left;transition:0.6s ease-in-out left;}
+.carousel .active,.carousel .next,.carousel .prev{display:block;}
+.carousel .active{left:0;}
+.carousel .next,.carousel .prev{position:absolute;top:0;width:100%;}
+.carousel .next{left:100%;}
+.carousel .prev{left:-100%;}
+.carousel .next.left,.carousel .prev.right{left:0;}
+.carousel .active.left{left:-100%;}
+.carousel .active.right{left:100%;}
+.carousel-control{position:absolute;top:40%;left:15px;width:40px;height:40px;margin-top:-20px;font-size:60px;font-weight:100;line-height:30px;color:#ccc;text-align:center;background:#999999;background:rgba(0, 0, 0, 0.5);-webkit-border-radius:20px;-moz-border-radius:20px;border-radius:20px;}.carousel-control.right{left:auto;right:15px;}
+.carousel-control:hover{color:#ffffff;text-decoration:none;background:#333333;background:rgba(0, 0, 0, 0.75);}
+.carousel-caption{position:absolute;left:0;right:0;bottom:0;padding:10px 15px 5px;background:#333333;background:rgba(0, 0, 0, 0.75);}
+.carousel-caption h4,.carousel-caption p{color:#ffffff;}
+.pull-right{float:right;}
+.pull-left{float:left;}
+.hide{display:none;}
+.show{display:block;}
+.invisible{visibility:hidden;}
+.hidden{display:none;visibility:hidden;}
+@media (max-width: 480px){.navbar .nav{position:absolute;top:0;left:0;width:180px;padding-top:40px;list-style:none;} .navbar .nav,.navbar .nav>li:last-child a{-webkit-border-radius:0 0 4px 0;-moz-border-radius:0 0 4px 0;border-radius:0 0 4px 0;} .navbar .nav>li{float:none;display:none;} .navbar .nav>li>a{float:none;background-color:#222;} .navbar .nav>.active{display:block;position:absolute;top:0;left:0;} .navbar .nav>.active>a{background-color:transparent;} .navbar .nav>.active>a:hover{background-color:#333;} .navbar .nav>.active>a:after{display:inline-block;width:0;height:0;margin-top:8px;margin-left:6px;text-indent:-99999px;vertical-align:top;border-left:4px solid transparent;border-right:4px solid transparent;border-top:4px solid #ffffff;filter:alpha(opacity=100);-moz-opacity:1;opacity:1;content:"&darr;";} .navbar .nav:hover>li{display:block;} .navbar .nav:hover>li>a:hover{background-color:#333;} .form-horizontal .control-group>label{float:none;width:auto;padding-top:0;text-align:left;} .form-horizontal .controls{margin-left:0;} .form-horizontal .control-list{padding-top:0;} .form-horizontal .form-actions{padding-left:0;} .modal{position:absolute;top:20px;left:20px;right:20px;width:auto;margin:0;}.modal.fade.in{top:auto;} .modal-header .close{padding:10px;}}@media (max-width: 768px){.navbar-fixed{position:absolute;} .navbar-fixed .nav{float:none;} .container{width:auto;padding:0 20px;} .row{margin-left:0;} .row>[class*="span"]{float:none;display:block;width:auto;margin:0;}}@media (min-width: 768px) and (max-width: 940px){.container{width:748px;} .span1{width:44px;} .span2{width:108px;} .span3{width:172px;} .span4{width:236px;} .span5{width:300px;} .span6{width:364px;} .span7{width:428px;} .span8{width:492px;} .span9{width:556px;} .span10{width:620px;} .span11{width:684px;} .span12{width:748px;} .offset1{margin-left:64px;} .offset2{margin-left:128px;} .offset3{margin-left:192px;} .offset4{margin-left:256px;} .offset5{margin-left:320px;} .offset6{margin-left:384px;} .offset7{margin-left:448px;} .offset8{margin-left:512px;} .offset9{margin-left:576px;} .offset10{margin-left:640px;} .offset11{margin-left:704px;} .offset12{margin-left:768px;}}
diff --git a/libpathod/templates/frame.html b/libpathod/templates/frame.html
new file mode 100644
index 00000000..f985aaa1
--- /dev/null
+++ b/libpathod/templates/frame.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <title>Omnid</title>
+    <link href="/static/bootstrap.min.css" rel="stylesheet">
+    <style type="text/css">
+      body {
+        padding-top: 60px;
+      }
+    </style>
+  </head>
+
+  <body>
+
+    <div class="navbar navbar-fixed">
+      <div class="navbar-inner">
+        <div class="container">
+          <a class="brand" href="#">Omnid</a>
+          <ul class="nav">
+            <li {% if section== "main" %} class="active" {% end %}><a href="/">Main</a></li>
+            <li {% if section== "log" %} class="active" {% end %}><a href="/log">Log</a></li>
+            <li {% if section== "help" %} class="active" {% end %}><a href="/help">Help</a></li>
+          </ul>
+        </div>
+      </div>
+    </div>
+
+    <div class="container">
+        
+        {% block body %}  
+        {% end %}  
+
+      <footer>
+        <p>made by <a href="http://corte.si">Aldo Cortesi</a> </p>
+      </footer>
+
+    </div> <!-- /container -->
+
+  </body>
+</html>
diff --git a/libpathod/templates/help.html b/libpathod/templates/help.html
new file mode 100644
index 00000000..20d884c5
--- /dev/null
+++ b/libpathod/templates/help.html
@@ -0,0 +1,4 @@
+{% extends frame.html %}
+{% block body %}  
+    <h1> Help </h1>
+{% end %}  
diff --git a/libpathod/templates/index.html b/libpathod/templates/index.html
new file mode 100644
index 00000000..38b35dd8
--- /dev/null
+++ b/libpathod/templates/index.html
@@ -0,0 +1,12 @@
+{% extends frame.html %}
+{% block body %}  
+  <!-- Main hero unit for a primary marketing message or call to action -->
+  <div class="hero-unit">
+    <form>
+        <input>
+        <a type="submit" class="btn">explain</a>
+
+    </form>
+  </div>
+
+{% end %}  
diff --git a/libpathod/templates/log.html b/libpathod/templates/log.html
new file mode 100644
index 00000000..3539291a
--- /dev/null
+++ b/libpathod/templates/log.html
@@ -0,0 +1,5 @@
+{% extends frame.html %}
+{% block body %}  
+    <h1> Log </h1>
+{% end %}  
+
diff --git a/libpathod/utils.py b/libpathod/utils.py
new file mode 100644
index 00000000..104ee148
--- /dev/null
+++ b/libpathod/utils.py
@@ -0,0 +1,31 @@
+import copy, os
+
+class Data:
+    def __init__(self, name):
+        m = __import__(name)
+        dirname, _ = os.path.split(m.__file__)
+        self.dirname = os.path.abspath(dirname)
+
+    def path(self, path):
+        """
+            Returns a path to the package data housed at 'path' under this
+            module.Path can be a path to a file, or to a directory.
+
+            This function will raise ValueError if the path does not exist.
+        """
+        fullpath = os.path.join(self.dirname, path)
+        if not os.path.exists(fullpath):
+            raise ValueError, "dataPath: %s does not exist."%fullpath
+        return fullpath
+
+    def read(self, path):
+        """
+            Returns a path to the package data housed at 'path' under this
+            module.Path can be a path to a file, or to a directory.
+
+            This function will raise ValueError if the path does not exist.
+        """
+        p = self.path(path)
+        return open(p).read()
+
+data = Data(__name__)
diff --git a/notes b/notes
new file mode 100644
index 00000000..0513cb42
--- /dev/null
+++ b/notes
@@ -0,0 +1,102 @@
+
+Value Specifiers:
+
+    !500k           - 500k of random data
+    !500k:utf8      - 500k of utf8. Other specifiers: utf8,alphanum,alpha,printable
+    "foo"           - literal
+    foo             - literal
+    <path           - load from path under data directory
+    <"path literal" - load from path under data directory
+
+
+Response:
+    
+    code:[comma-separated features]
+    
+
+Specifying a response:
+    Code 200:
+        code:msg
+        200:VALUE
+
+    Headers:
+        h:VALUE:VALUE
+
+    Body:
+        b:VALUE
+
+    Pauses:
+        pb:5
+        pb:forever
+
+        Pause before sending data:
+
+            pb:5
+
+        Pause after sending data, before hanging up:
+
+            pa:5
+
+        Pause after sending a random amoutn of data:
+
+            pr:5
+
+
+    Disconnect:
+        
+        Before sending data:
+
+            db
+
+        Randomly:
+
+            dr
+
+
+Shortcuts:
+
+    Redirects:
+        code:msg>destination
+        code>destination
+
+        301:VALUE>VALUE
+        301>http://foo.bar
+
+
+    Content-type:
+
+        t:content-type
+
+
+Examples:
+    200,b:500k
+
+    404,p:5s,b:1k:printable
+
+    200,t:text/json,p:5s,b:1k
+
+    200,b:1k,xr
+
+
+
+Sequences:
+
+    200 * 2 | !forever
+
+    200 | 404 | 200,b:500g
+
+
+
+Anchors:
+
+    Passed on command-line?
+        --anchor /foo/bar 200:!/foo
+
+
+
+Built-in help
+
+    /help
+
+    /explain/expression
+
diff --git a/pathod b/pathod
new file mode 100755
index 00000000..ab8cc93f
--- /dev/null
+++ b/pathod
@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+import argparse
+import libomnid
+import tornado.ioloop
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description='Process some integers.')
+    parser.add_argument("-p", dest='port', default=8888, type=int, help='Port.')
+    parser.add_argument(
+        "-s", dest='staticdir', default=None, type=str,
+        help='Directory for static files.'
+    )
+    args = parser.parse_args()
+
+    libomnid.application(staticdir=args.staticdir).listen(args.port)
+    print "omnid listening on port %s"%args.port
+    try:
+        tornado.ioloop.IOLoop.instance().start()
+    except KeyboardInterrupt:
+        pass
+
diff --git a/test/.pry b/test/.pry
new file mode 100644
index 00000000..4b6802be
--- /dev/null
+++ b/test/.pry
@@ -0,0 +1,5 @@
+base = ..
+coverage = ../libpathod
+exclude = .
+          ../libpathod/contrib
+
diff --git a/test/test_rparse.py b/test/test_rparse.py
new file mode 100644
index 00000000..b872b1f3
--- /dev/null
+++ b/test/test_rparse.py
@@ -0,0 +1,262 @@
+import StringIO, sys
+import libpry
+from libpathod import rparse
+
+rparse.TESTING = True
+
+class uMisc(libpry.AutoTree):
+    def test_generators(self):
+        v = rparse.Value.parseString("val")[0]
+        g = v.get_generator({})
+        assert g[:] == "val"
+
+    def test_randomgenerator(self):
+        g = rparse.RandomGenerator("one", 100)
+        assert len(g[:10]) == 10
+        assert len(g[1:10]) == 9
+        assert len(g[:1000]) == 100
+        assert len(g[1000:1001]) == 0
+        assert g[0]
+
+    def test_literalgenerator(self):
+        g = rparse.LiteralGenerator("one")
+        assert g == "one"
+        assert g[:] == "one"
+        assert g[1] == "n"
+
+    def test_valueliteral(self):
+        v = rparse.ValueLiteral("foo")
+        assert v.expr()
+        assert str(v)
+
+    def test_generated_value(self):
+        v = rparse.Value.parseString("!10b")[0]
+        assert v.usize == 10
+        assert v.unit == "b"
+        assert v.bytes() == 10
+        v = rparse.Value.parseString("!10")[0]
+        assert v.unit == "b"
+        v = rparse.Value.parseString("!10k")[0]
+        assert v.bytes() == 10240
+        v = rparse.Value.parseString("!10g")[0]
+        assert v.bytes() == 1024**3 * 10
+
+        v = rparse.Value.parseString("!10g:digits")[0]
+        assert v.datatype == "digits"
+        g = v.get_generator({})
+        assert g[:100]
+
+        v = rparse.Value.parseString("!10:digits")[0]
+        assert v.unit == "b"
+        assert v.datatype == "digits"
+
+    def test_value(self):
+        assert rparse.Value.parseString("val")[0].val == "val"
+        assert rparse.Value.parseString("'val'")[0].val == "val"
+        assert rparse.Value.parseString('"val"')[0].val == "val"
+        assert rparse.Value.parseString('"\'val\'"')[0].val == "'val'"
+
+        v = rparse.Value.parseString("<path")[0]
+        assert v.path == "path"
+        v = rparse.Value.parseString("<'one two'")[0]
+        assert v.path == "one two"
+
+    def test_body(self):
+        e = rparse.Body.expr()
+        v = e.parseString("b:foo")[0]
+        assert v.value.val == "foo"
+
+        v = e.parseString("b:!100")[0]
+        assert str(v.value) == "!100b:bytes"
+
+        v = e.parseString("b:!100g:digits", parseAll=True)[0]
+        assert v.value.datatype == "digits"
+        assert str(v.value) == "!100g:digits"
+
+    def test_header(self):
+        e = rparse.Header.expr()
+        v = e.parseString("h:foo:bar")[0]
+        assert v.key.val == "foo"
+        assert v.value.val == "bar"
+
+    def test_code(self):
+        e = rparse.Code.expr()
+        v = e.parseString("200")[0]
+        assert v.code == 200
+
+        v = e.parseString("404:msg")[0]
+        assert v.code == 404
+        assert v.msg.val == "msg"
+
+        r = e.parseString("200:'foo'")[0]
+        assert r.msg.val == "foo"
+
+        r = e.parseString("200:'\"foo\"'")[0]
+        assert r.msg.val == "\"foo\""
+
+        r = e.parseString('200:"foo"')[0]
+        assert r.msg.val == "foo"
+
+        r = e.parseString('404')[0]
+        assert r.msg.val == "Not Found"
+
+        r = e.parseString('10')[0]
+        assert r.msg.val == "Unknown code"
+
+    def test_stub_response(self):
+        s = rparse.StubResponse(400, "foo")
+
+
+class uDisconnects(libpry.AutoTree):
+    def test_before(self):
+        e = rparse.DisconnectBefore.expr()
+        v = e.parseString("db")[0]
+        assert isinstance(v, rparse.DisconnectBefore)
+
+        v = e.parseString("db")[0]
+        assert isinstance(v, rparse.DisconnectBefore)
+
+    def test_random(self):
+        e = rparse.DisconnectRandom.expr()
+        v = e.parseString("dr")[0]
+        assert isinstance(v, rparse.DisconnectRandom)
+
+        v = e.parseString("dr")[0]
+        assert isinstance(v, rparse.DisconnectRandom)
+
+
+class uPauses(libpry.AutoTree):
+    def test_before(self):
+        e = rparse.PauseBefore.expr()
+        v = e.parseString("pb:10")[0]
+        assert v.value == 10
+
+        v = e.parseString("pb:forever")[0]
+        assert v.value == "forever"
+
+    def test_after(self):
+        e = rparse.PauseAfter.expr()
+        v = e.parseString("pa:10")[0]
+        assert v.value == 10
+
+    def test_random(self):
+        e = rparse.PauseRandom.expr()
+        v = e.parseString("pr:10")[0]
+        assert v.value == 10
+
+
+class uparse(libpry.AutoTree):
+    def test_parse_err(self):
+        libpry.raises(rparse.ParseException, rparse.parse, {}, "400:msg,b:")
+
+    def test_parse_header(self):
+        r = rparse.parse({}, "400,h:foo:bar")
+        assert r.get_header("foo") == "bar"
+
+    def test_parse_pause_before(self):
+        r = rparse.parse({}, "400,pb:10")
+        assert (0, 10) in r.pauses
+
+    def test_parse_pause_after(self):
+        r = rparse.parse({}, "400,pa:10")
+        assert (sys.maxint, 10) in r.pauses
+
+    def test_parse_pause_random(self):
+        r = rparse.parse({}, "400,pr:10")
+        assert ("random", 10) in r.pauses
+
+
+class DummyRequest(StringIO.StringIO):
+    def write(self, d, callback=None):
+        StringIO.StringIO.write(self, d)
+        if callback:
+            callback()
+
+    def finish(self):
+        return
+
+
+class uResponse(libpry.AutoTree):
+    def dummy_response(self):
+        return rparse.parse({}, "400:msg")
+
+    def test_response(self):
+        r = rparse.parse({}, "400:msg")
+        assert r.code == 400
+        assert r.msg == "msg"
+
+        r = rparse.parse({}, "400:msg,b:!100b")
+        assert r.msg == "msg"
+        assert r.body[:]
+        assert str(r)
+
+    def test_ready_randoms(self):
+        r = rparse.parse({}, "400:msg")
+
+        x = [(0, 5)]
+        assert r.ready_randoms(100, x) == x
+
+        x = [("random", 5)]
+        ret = r.ready_randoms(100, x)
+        assert 0 <= ret[0][0] < 100
+
+        x = [(1, 5), (0, 5)]
+        assert r.ready_randoms(100, x) == sorted(x)
+
+    def test_write_values_disconnects(self):
+        r = self.dummy_response()
+        s = DummyRequest()
+        tst = "foo"*100
+        r.write_values(s, [tst], [], "before", blocksize=5)
+        assert not s.getvalue()
+
+    def test_write_values(self):
+        tst = "foo"*1025
+        r = rparse.parse({}, "400:msg")
+
+        s = DummyRequest()
+        r.write_values(s, [tst], [], None)
+        assert s.getvalue() == tst
+
+    def test_write_values_pauses(self):
+        tst = "".join(str(i) for i in range(10))
+        r = rparse.parse({}, "400:msg")
+
+        for i in range(2, 10):
+            s = DummyRequest()
+            r.write_values(s, [tst], [(2, 0), (1, 0)], None, blocksize=i)
+            assert s.getvalue() == tst
+
+        for i in range(2, 10):
+            s = DummyRequest()
+            r.write_values(s, [tst], [(1, 0)], None, blocksize=i)
+            assert s.getvalue() == tst
+
+        tst = ["".join(str(i) for i in range(10))]*5
+        for i in range(2, 10):
+            s = DummyRequest()
+            r.write_values(s, tst[:], [(1, 0)], None, blocksize=i)
+            assert s.getvalue() == "".join(tst)
+
+    def test_render(self):
+        s = DummyRequest()
+        r = rparse.parse({}, "400:msg")
+        r.render(s)
+
+    def test_length(self):
+        def testlen(x):
+            s = DummyRequest()
+            x.render(s)
+            assert x.length() == len(s.getvalue())
+        testlen(rparse.parse({}, "400:msg"))
+        testlen(rparse.parse({}, "400:msg,h:foo:bar"))
+        testlen(rparse.parse({}, "400:msg,h:foo:bar,b:!100b"))
+
+
+tests = [
+    uResponse(),
+    uPauses(),
+    uDisconnects(),
+    uMisc(),
+    uparse()
+]
diff --git a/test/test_utils.py b/test/test_utils.py
new file mode 100644
index 00000000..7c6c7cb1
--- /dev/null
+++ b/test/test_utils.py
@@ -0,0 +1,8 @@
+import libpry
+from libpathod import utils
+
+
+
+
+tests = [
+]
diff --git a/todo b/todo
new file mode 100644
index 00000000..5ad3c4b8
--- /dev/null
+++ b/todo
@@ -0,0 +1,6 @@
+
+- Files
+- Shortcuts
+- HTTPS
+- Sequences
+- Anchors