# # Copyright (C) 2007-2009 OpenWrt.org # # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. ifneq ($(if $(DUMP),1,$(__quilt_inc)),1) __quilt_inc:=1 ifeq ($(TARGET_BUILD),1) PKG_BUILD_DIR:=$(LINUX_DIR) endif PATCH_DIR?=./patches FILES_DIR?=./files HOST_PATCH_DIR?=$(PATCH_DIR) HOST_FILES_DIR?=$(FILES_DIR) ifeq ($(MAKECMDGOALS),refresh) override QUILT=1 endif QUILT_CMD:=quilt --quiltrc=- define filter_series sed -e s,\\\#.*,, $(1) | grep -E \[a-zA-Z0-9\] endef define PatchDir/Quilt @mkdir -p "$(1)/patches$(if $(3),/$(patsubst %/,%,$(3)))" @if [ -s "$(2)/series" ]; then \ mkdir -p "$(1)/patches/$(3)"; \ cp "$(2)/series" "$(1)/patches/$(3)"; \ fi @for patch in $$$$( (cd "$(2)" && if [ -f series ]; then $(call filter_series,series); else ls | sort; fi; ) 2>/dev/null ); do ( \ cp "$(2)/$$$$patch" "$(1)/patches/$(3)"; \ echo "$(3)$$$$patch" >> "$(1)/patches/series"; \ ); done $(if $(3),@echo $(3) >> "$(1)/patches/.subdirs") endef define PatchDir/Default @if [ -d "$(2)" ] && [ "$$$$(ls $(2) | wc -l)" -gt 0 ]; then \ export PATCH="$(PATCH)"; \ if [ -s "$(2)/series" ]; then \ $(call filter_series,$(2)/series) | xargs -n1 \ $(KPATCH) "$(1)" "$(2)"; \ else \ $(KPATCH) "$(1)" "$(2)"; \ fi; \ fi endef define PatchDir $(call PatchDir/$(if $(strip $(QUILT)),Quilt,Default),$(strip $(1)),$(strip $(2)),$(strip $(3))) endef define HostPatchDir $(call PatchDir/$(if $(strip $(HOST_QUILT)),Quilt,Default),$(strip $(1)),$(strip $(2)),$(strip $(3))) endef ifneq ($(PKG_BUILD_DIR),) QUILT?=$(if $(wildcard $(PKG_BUILD_DIR)/.quilt_used),y) ifneq ($(QUILT),) STAMP_CHECKED:=$(PKG_BUILD_DIR)/.quilt_checked override CONFIG_AUTOREBUILD= quilt-check: $(STAMP_CHECKED) endif endif ifneq ($(HOST_BUILD_DIR),) HOST_QUILT?=$(if $(findstring command,$(origin QUILT)),$(QUILT),$(if $(wildcard $(HOST_BUILD_DIR)/.quilt_used),y)) ifneq ($(HOST_QUILT),) HOST_STAMP_CHECKED:=$(HOST_BUILD_DIR)/.quilt_checked override CONFIG_AUTOREBUILD= host-quilt-check: $(HOST_STAMP_CHECKED) endif endif define Host/Patch/Default $(if $(HOST_QUILT),rm -rf $(HOST_BUILD_DIR)/patches; mkdir -p $(HOST_BUILD_DIR)/patches) $(call HostPatchDir,$(HOST_BUILD_DIR),$(HOST_PATCH_DIR),) $(if $(HOST_QUILT),touch $(HOST_BUILD_DIR)/.quilt_used) endef define Build/Patch/Default $(if $(QUILT),rm -rf $(PKG_BUILD_DIR)/patches; mkdir -p $(PKG_BUILD_DIR)/patches) $(call PatchDir,$(PKG_BUILD_DIR),$(PATCH_DIR),) $(if $(QUILT),touch $(PKG_BUILD_DIR)/.quilt_used) endef kernel_files=$(foreach fdir,$(GENERIC_FILES_DIR) $(FILES_DIR),$(fdir)/.) define Kernel/Patch/Default rm -rf $(PKG_BUILD_DIR)/patches; mkdir -p $(PKG_BUILD_DIR)/patches $(if $(kernel_files),$(CP) $(kernel_files) $(LINUX_DIR)/) find $(LINUX_DIR)/ -name \*.rej -or -name \*.orig | $(XARGS) rm -f $(call PatchDir,$(PKG_BUILD_DIR),$(GENERIC_PATCH_DIR),generic/) $(call PatchDir,$(PKG_BUILD_DIR),$(PATCH_DIR),platform/) endef define Quilt/RefreshDir mkdir -p $(2) -rm -f $(2)/* 2>/dev/null >/dev/null @( \ for patch in $$$$($(if $(3),grep "^$(3)",cat) $(1)/patches/series | awk '{print $$$$1}'); do \ $(CP) -v "$(1)/patches/$$$$patch" $(2); \ done; \ ) endef define Quilt/Refresh/Host $(call Quilt/RefreshDir,$(HOST_BUILD_DIR),$(PATCH_DIR)) endef define Quilt/Refresh/Package $(call Quilt/RefreshDir,$(PKG_BUILD_DIR),$(PATCH_DIR)) endef define Quilt/Refresh/Kernel @[ -z "$$(grep -v '^generic/' $(PKG_BUILD_DIR)/patches/series | grep -v '^platform/')" ] || { \ echo "All kernel patches must start with either generic/ or platform/"; \ false; \ } $(call Quilt/RefreshDir,$(PKG_BUILD_DIR),$(GENERIC_PATCH_DIR),generic/) $(call Quilt/RefreshDir,$(PKG_BUILD_DIR),$(PATCH_DIR),platform/) endef define Quilt/Template $($(2)STAMP_CONFIGURED): $($(2)STAMP_CHECKED) $(if $(NO_RECONFIGURE),$($(2)STAMP_BUILT),$($(2)STAMP_CONFIGURED)): FORCE $($(2)STAMP_CHECKED): $($(2)STAMP_PREPARED) if [ -s "$(1)/patches/series" ]; then \ (cd "$(1)"; \ if $(QUILT_CMD) next >/dev/null 2>&1; then \ $(QUILT_CMD) push -a; \ else \ $(QUILT_CMD) top >/dev/null 2>&1; \ fi \ ); \ fi touch "$$@" $(3)quilt-check: $($(2)STAMP_PREPARED) FORCE @[ -f "$(1)/.quilt_used" ] || { \ echo "The source directory was not unpacked using quilt. Please rebuild with QUILT=1"; \ false; \ } @[ -f "$(1)/patches/series" ] || { \ echo "The source directory contains no quilt patches."; \ false; \ } @[ -n "$$$$(ls $(1)/patches/series)" -o "$$$$(cat $(1)/patches/series | md5sum)" = "$$(sort $(1)/patches/series | md5sum)" ] || { \ echo "The patches are not sorted in the right order. Please fix."; \ false; \ } $(3)refresh: $(3)quilt-check @cd "$(1)"; $(QUILT_CMD) pop -a -f >/dev/null 2>/dev/null @cd "$(1)"; while $(QUILT_CMD) next 2>/dev/null >/dev/null && $(QUILT_CMD) push; do \ QUILT_DIFF_OPTS="-p" $(QUILT_CMD) refresh -p ab --no-index --no-timestamps; \ done; ! $(QUILT_CMD) next 2>/dev/null >/dev/null $(Quilt/Refresh/$(4)) $(3)update: $(3)quilt-check $(Quilt/Refresh/$(4)) endef Build/Quilt=$(call Quilt/Template,$(PKG_BUILD_DIR),,,$(if $(TARGET_BUILD),Kernel,Package)) Host/Quilt=$(call Quilt/Template,$(HOST_BUILD_DIR),HOST_,host-,Host) endif 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 
/**
Copyright (c) 2014 Alex Tsui

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.
*/
#include "ParseHelper.h"
#include <iostream>
#include <fstream>
#include <string>
#include <sstream>
#include <vector>
#include <cstdlib>
#include "ParseListener.h"

ParseHelper::Indent::
Indent( )
{ }

ParseHelper::Indent::
Indent( const std::string& indent ):
    Token( indent )
{ }

ParseHelper::ParseState::
ParseState( ParseHelper& parent_ ): parent( parent_ )
{ }

ParseHelper::ParseState::
~ParseState( )
{ }

bool ParseHelper::PeekIndent( const std::string& str, Indent* indent )
{
    if ( !str.size() || ! isspace(str[0]) )
        return false;

    int nonwhitespaceIndex = -1;
    for (size_t i = 0; i < str.size(); ++i)
    {
        if (!isspace(str[i]))
        {
            nonwhitespaceIndex = i;
            break;
        }
    }
    if (nonwhitespaceIndex == -1)
    {
        return false;
    }
    std::string indentToken = str.substr(0, nonwhitespaceIndex);
    indent->Token = indentToken;
    return true;
}

ParseHelper::ParseHelper( )
{ }

void ParseHelper::process( const std::string& str )
{
    std::string top;
    commandBuffer.push_back(str);
    //std::string top = commandBuffer.back();
    //commandBuffer.pop_back();
    std::shared_ptr<ParseState> blockStatePtr;
    while (stateStack.size())
    {
        top = commandBuffer.back();
        commandBuffer.pop_back();
        blockStatePtr = stateStack.back();
        if (blockStatePtr->process(top))
            return;
    }

    if ( ! commandBuffer.size() )
        return;

    // standard state
    top = commandBuffer.back();
    if ( !top.size() )
    {
        reset( );
        broadcast( std::string() );
        return;
    }

    { // check for unexpected indent
        Indent ind;
        bool isIndented = PeekIndent( top, &ind );
        if ( isIndented &&
            ! isInContinuation( ) )
        {
            reset( );
            ParseMessage msg( 1, "IndentationError: unexpected indent");
            broadcast( msg );
            return;
        }
    }

    // enter indented block state
    if ( top[top.size()-1] == ':' )
    {
        std::shared_ptr<ParseState> parseState(
            new BlockParseState( *this ) );
        stateStack.push_back( parseState );
        return;
    }

    if ( top[top.size()-1] == '\\' )
    {
        std::shared_ptr<ParseState> parseState(
            new ContinuationParseState( *this ) );
        stateStack.push_back( parseState );
        return;
    }

    if (BracketParseState::HasOpenBrackets( top ))
    {
        // FIXME: Every parse state should have its own local buffer
        commandBuffer.pop_back( );
        std::shared_ptr<ParseState> parseState(
            new BracketParseState( *this, top ) );
        stateStack.push_back( parseState );
        return;
    }

    // handle single-line statement
    flush( );
}

bool ParseHelper::buffered( ) const
{
    return commandBuffer.size( ) || stateStack.size( );
}

void ParseHelper::flush( )
{
    std::stringstream ss;
    for (size_t i = 0; i < commandBuffer.size(); ++i )
    {
        ss << commandBuffer[i] << "\n";
    }
    commandBuffer.clear();

    broadcast( ss.str() );
    // TODO: feed string to interpreter
}

void ParseHelper::reset( )
{
//    inContinuation = false;
    stateStack.clear( );
    commandBuffer.clear( );
}

bool ParseHelper::isInContinuation( ) const
{
    return (stateStack.size()
        && (std::dynamic_pointer_cast<ContinuationParseState>(
            stateStack.back())));
}

void ParseHelper::subscribe( ParseListener* listener )
{
    listeners.push_back( listener );
}

void ParseHelper::unsubscribeAll( )
{
    listeners.clear( );
}

void ParseHelper::broadcast( const ParseMessage& msg )
{
    // broadcast signal
    for (size_t i = 0; i < listeners.size(); ++i)
    {
        if (listeners[i])
        {
            listeners[i]->parseEvent(msg);
        }
    }
}
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