Version abc80130

1 files changed, 0 insertions, 349 deletions

diff --git a/src/bdd/parse/parseEqn.c b/src/bdd/parse/parseEqn.c
deleted file mode 100644
index 02d83966..00000000
--- a/src/bdd/parse/parseEqn.c
+++ /dev/null
@@ -1,349 +0,0 @@
-/**CFile****************************************************************
-
-  FileNameIn  [parseEqn.c]
-
-  PackageName [ABC: Logic synthesis and verification system.]
-
-  Synopsis    [Boolean formula parser.]
-
-  Author      [Alan Mishchenko]
-  
-  Affiliation [UC Berkeley]
-
-  Date        [Ver. 1.0. Started - December 18, 2006.]
-
-  Revision    [$Id: parseEqn.c,v 1.0 2006/12/18 00:00:00 alanmi Exp $]
-
-***********************************************************************/
-
-
-////////////////////////////////////////////////////////////////////////
-///                        DECLARATIONS                              ///
-////////////////////////////////////////////////////////////////////////
-
-#include "parseInt.h"
-#include "vec.h"
-#include "hop.h"
-
-// the list of operation symbols to be used in expressions
-#define PARSE_EQN_SYM_OPEN    '('   // opening paranthesis
-#define PARSE_EQN_SYM_CLOSE   ')'   // closing paranthesis
-#define PARSE_EQN_SYM_CONST0  '0'   // constant 0
-#define PARSE_EQN_SYM_CONST1  '1'   // constant 1
-#define PARSE_EQN_SYM_NEG     '!'   // negation before the variable
-#define PARSE_EQN_SYM_AND     '*'   // logic AND
-#define PARSE_EQN_SYM_OR      '+'   // logic OR
-
-// the list of opcodes (also specifying operation precedence)
-#define PARSE_EQN_OPER_NEG    10    // negation
-#define PARSE_EQN_OPER_AND     9    // logic AND
-#define PARSE_EQN_OPER_OR      7    // logic OR
-#define PARSE_EQN_OPER_MARK    1    // OpStack token standing for an opening paranthesis
-
-// these are values of the internal Flag
-#define PARSE_EQN_FLAG_START   1    // after the opening parenthesis 
-#define PARSE_EQN_FLAG_VAR     2    // after operation is received
-#define PARSE_EQN_FLAG_OPER    3    // after operation symbol is received
-#define PARSE_EQN_FLAG_ERROR   4    // when error is detected
-
-#define PARSE_EQN_STACKSIZE 1000
-
-static Hop_Obj_t * Parse_ParserPerformTopOp( Hop_Man_t * pMan, Parse_StackFn_t * pStackFn, int Oper );
-
-////////////////////////////////////////////////////////////////////////
-///                     FUNCTION DEFINITIONS                         ///
-////////////////////////////////////////////////////////////////////////
-
-/**Function*************************************************************
-
-  Synopsis    [Derives the AIG corresponding to the equation.]
-
-  Description [Takes the stream to output messages, the formula, the vector
-  of variable names and the AIG manager.]
-               
-  SideEffects []
-
-  SeeAlso     []
-
-***********************************************************************/
-Hop_Obj_t * Parse_FormulaParserEqn( FILE * pOutput, char * pFormInit, Vec_Ptr_t * vVarNames, Hop_Man_t * pMan )
-{
-    char * pFormula;
-    Parse_StackFn_t * pStackFn;
-    Parse_StackOp_t * pStackOp;
-    Hop_Obj_t * gFunc;
-    char * pTemp, * pName;
-    int nParans, fFound, Flag;
-    int Oper, Oper1, Oper2;
-    int i, v;
-
-    // make sure that the number of opening and closing parantheses is the same
-    nParans = 0;
-    for ( pTemp = pFormInit; *pTemp; pTemp++ )
-        if ( *pTemp == '(' )
-            nParans++;
-        else if ( *pTemp == ')' )
-            nParans--;
-    if ( nParans != 0 )
-    {
-        fprintf( pOutput, "Parse_FormulaParserEqn(): Different number of opening and closing parantheses ().\n" );
-        return NULL;
-    }
-
-    // copy the formula
-    pFormula = ALLOC( char, strlen(pFormInit) + 3 );
-    sprintf( pFormula, "(%s)", pFormInit );
-
-    // start the stacks
-    pStackFn = Parse_StackFnStart( PARSE_EQN_STACKSIZE );
-    pStackOp = Parse_StackOpStart( PARSE_EQN_STACKSIZE );
-
-    Flag = PARSE_EQN_FLAG_START;
-    for ( pTemp = pFormula; *pTemp; pTemp++ )
-    {
-        switch ( *pTemp )
-        {
-        // skip all spaces, tabs, and end-of-lines
-        case ' ':
-        case '\t':
-        case '\r':
-        case '\n':
-            continue;
-        case PARSE_EQN_SYM_CONST0:
-            Parse_StackFnPush( pStackFn, Hop_ManConst0(pMan) );  // Cudd_Ref( b0 );
-            if ( Flag == PARSE_EQN_FLAG_VAR )
-            {
-                fprintf( pOutput, "Parse_FormulaParserEqn(): No operation symbol before constant 0.\n" );
-                Flag = PARSE_EQN_FLAG_ERROR; 
-                break;
-            }
-            Flag = PARSE_EQN_FLAG_VAR; 
-            break;
-        case PARSE_EQN_SYM_CONST1:
-            Parse_StackFnPush( pStackFn, Hop_ManConst1(pMan) );  //  Cudd_Ref( b1 );
-            if ( Flag == PARSE_EQN_FLAG_VAR )
-            {
-                fprintf( pOutput, "Parse_FormulaParserEqn(): No operation symbol before constant 1.\n" );
-                Flag = PARSE_EQN_FLAG_ERROR; 
-                break;
-            }
-            Flag = PARSE_EQN_FLAG_VAR; 
-            break;
-        case PARSE_EQN_SYM_NEG:
-            if ( Flag == PARSE_EQN_FLAG_VAR )
-            {// if NEGBEF follows a variable, AND is assumed
-                Parse_StackOpPush( pStackOp, PARSE_EQN_OPER_AND );
-                Flag = PARSE_EQN_FLAG_OPER;
-            }
-            Parse_StackOpPush( pStackOp, PARSE_EQN_OPER_NEG );
-            break;
-        case PARSE_EQN_SYM_AND:
-        case PARSE_EQN_SYM_OR:
-            if ( Flag != PARSE_EQN_FLAG_VAR )
-            {
-                fprintf( pOutput, "Parse_FormulaParserEqn(): There is no variable before AND, EXOR, or OR.\n" );
-                Flag = PARSE_EQN_FLAG_ERROR; 
-                break;
-            }
-            if ( *pTemp == PARSE_EQN_SYM_AND )
-                Parse_StackOpPush( pStackOp, PARSE_EQN_OPER_AND );
-            else //if ( *pTemp == PARSE_EQN_SYM_OR )
-                Parse_StackOpPush( pStackOp, PARSE_EQN_OPER_OR );
-            Flag = PARSE_EQN_FLAG_OPER; 
-            break;
-        case PARSE_EQN_SYM_OPEN:
-            if ( Flag == PARSE_EQN_FLAG_VAR )
-            {
-//                Parse_StackOpPush( pStackOp, PARSE_EQN_OPER_AND );
-                fprintf( pOutput, "Parse_FormulaParserEqn(): An opening paranthesis follows a var without operation sign.\n" ); 
-                Flag = PARSE_EQN_FLAG_ERROR; 
-                break; 
-            }
-            Parse_StackOpPush( pStackOp, PARSE_EQN_OPER_MARK );
-            // after an opening bracket, it feels like starting over again
-            Flag = PARSE_EQN_FLAG_START; 
-            break;
-        case PARSE_EQN_SYM_CLOSE:
-            if ( !Parse_StackOpIsEmpty( pStackOp ) )
-            {
-                while ( 1 )
-                {
-                    if ( Parse_StackOpIsEmpty( pStackOp ) )
-                    {
-                        fprintf( pOutput, "Parse_FormulaParserEqn(): There is no opening paranthesis\n" );
-                        Flag = PARSE_EQN_FLAG_ERROR; 
-                        break;
-                    }
-                    Oper = Parse_StackOpPop( pStackOp );
-                    if ( Oper == PARSE_EQN_OPER_MARK )
-                        break;
-
-                    // perform the given operation
-                    if ( Parse_ParserPerformTopOp( pMan, pStackFn, Oper ) == NULL )
-                    {
-                        fprintf( pOutput, "Parse_FormulaParserEqn(): Unknown operation\n" );
-                        free( pFormula );
-                        return NULL;
-                    }
-                }
-            }
-            else
-            {
-                fprintf( pOutput, "Parse_FormulaParserEqn(): There is no opening paranthesis\n" );
-                Flag = PARSE_EQN_FLAG_ERROR; 
-                break;
-            }
-            if ( Flag != PARSE_EQN_FLAG_ERROR )
-                Flag = PARSE_EQN_FLAG_VAR; 
-            break;
-
-
-        default:
-            // scan the next name
-            for ( i = 0; pTemp[i] && 
-                         pTemp[i] != ' ' && pTemp[i] != '\t' && pTemp[i] != '\r' && pTemp[i] != '\n' &&
-                         pTemp[i] != PARSE_EQN_SYM_AND && pTemp[i] != PARSE_EQN_SYM_OR && pTemp[i] != PARSE_EQN_SYM_CLOSE; i++ )
-              {
-                    if ( pTemp[i] == PARSE_EQN_SYM_NEG || pTemp[i] == PARSE_EQN_SYM_OPEN )
-                    {
-                        fprintf( pOutput, "Parse_FormulaParserEqn(): The negation sign or an opening paranthesis inside the variable name.\n" );
-                        Flag = PARSE_EQN_FLAG_ERROR; 
-                        break;
-                    }
-              }
-            // variable name is found
-            fFound = 0;
-            Vec_PtrForEachEntry( vVarNames, pName, v )
-                if ( strncmp(pTemp, pName, i) == 0 && strlen(pName) == (unsigned)i )
-                {
-                    pTemp += i-1;
-                    fFound = 1;
-                    break;
-                }
-            if ( !fFound )
-            { 
-                fprintf( pOutput, "Parse_FormulaParserEqn(): The parser cannot find var \"%s\" in the input var list.\n", pTemp ); 
-                Flag = PARSE_EQN_FLAG_ERROR; 
-                break; 
-            }
-            if ( Flag == PARSE_EQN_FLAG_VAR )
-            {
-                fprintf( pOutput, "Parse_FormulaParserEqn(): The variable name \"%s\" follows another var without operation sign.\n", pTemp ); 
-                Flag = PARSE_EQN_FLAG_ERROR; 
-                break; 
-            }
-            Parse_StackFnPush( pStackFn, Hop_IthVar( pMan, v ) ); // Cudd_Ref( pbVars[v] );
-            Flag = PARSE_EQN_FLAG_VAR; 
-            break;
-        }
-
-        if ( Flag == PARSE_EQN_FLAG_ERROR )
-            break;      // error exit
-        else if ( Flag == PARSE_EQN_FLAG_START )
-            continue;  //  go on parsing
-        else if ( Flag == PARSE_EQN_FLAG_VAR )
-            while ( 1 )
-            {  // check if there are negations in the OpStack     
-                if ( Parse_StackOpIsEmpty(pStackOp) )
-                    break;
-                Oper = Parse_StackOpPop( pStackOp );
-                if ( Oper != PARSE_EQN_OPER_NEG )
-                {
-                    Parse_StackOpPush( pStackOp, Oper );
-                    break;
-                }
-                else
-                {
-                      Parse_StackFnPush( pStackFn, Hop_Not(Parse_StackFnPop(pStackFn)) );
-                }
-            }
-        else // if ( Flag == PARSE_EQN_FLAG_OPER )
-            while ( 1 )
-            {  // execute all the operations in the OpStack
-               // with precedence higher or equal than the last one
-                Oper1 = Parse_StackOpPop( pStackOp ); // the last operation
-                if ( Parse_StackOpIsEmpty(pStackOp) ) 
-                {  // if it is the only operation, push it back
-                    Parse_StackOpPush( pStackOp, Oper1 );
-                    break;
-                }
-                Oper2 = Parse_StackOpPop( pStackOp ); // the operation before the last one
-                if ( Oper2 >= Oper1 )  
-                {  // if Oper2 precedence is higher or equal, execute it
-                    if ( Parse_ParserPerformTopOp( pMan, pStackFn, Oper2 ) == NULL )
-                    {
-                        fprintf( pOutput, "Parse_FormulaParserEqn(): Unknown operation\n" );
-                        free( pFormula );
-                        return NULL;
-                    }
-                    Parse_StackOpPush( pStackOp,  Oper1 );     // push the last operation back
-                }
-                else
-                {  // if Oper2 precedence is lower, push them back and done
-                    Parse_StackOpPush( pStackOp, Oper2 );
-                    Parse_StackOpPush( pStackOp, Oper1 );
-                    break;
-                }
-            }
-    }
-
-    if ( Flag != PARSE_EQN_FLAG_ERROR )
-    {
-        if ( !Parse_StackFnIsEmpty(pStackFn) )
-        {    
-            gFunc = Parse_StackFnPop(pStackFn);
-            if ( Parse_StackFnIsEmpty(pStackFn) )
-                if ( Parse_StackOpIsEmpty(pStackOp) )
-                {
-                    Parse_StackFnFree(pStackFn);
-                    Parse_StackOpFree(pStackOp);
-//                    Cudd_Deref( gFunc );
-                    free( pFormula );
-                    return gFunc;
-                }
-                else
-                    fprintf( pOutput, "Parse_FormulaParserEqn(): Something is left in the operation stack\n" );
-            else
-                fprintf( pOutput, "Parse_FormulaParserEqn(): Something is left in the function stack\n" );
-        }
-        else
-            fprintf( pOutput, "Parse_FormulaParserEqn(): The input string is empty\n" );
-    }
-    free( pFormula );
-    return NULL;
-}
-
-/**Function*************************************************************
-
-  Synopsis    [Performs the operation on the top entries in the stack.]
-
-  Description []
-               
-  SideEffects []
-
-  SeeAlso     []
-
-***********************************************************************/
-Hop_Obj_t * Parse_ParserPerformTopOp( Hop_Man_t * pMan, Parse_StackFn_t * pStackFn, int Oper )
-{
-    Hop_Obj_t * gArg1, * gArg2, * gFunc;
-    // perform the given operation
-    gArg2 = Parse_StackFnPop( pStackFn );
-    gArg1 = Parse_StackFnPop( pStackFn );
-    if ( Oper == PARSE_EQN_OPER_AND )
-        gFunc = Hop_And( pMan, gArg1, gArg2 );
-    else if ( Oper == PARSE_EQN_OPER_OR )
-        gFunc = Hop_Or( pMan, gArg1, gArg2 );
-    else
-        return NULL;
-//    Cudd_Ref( gFunc );
-//    Cudd_RecursiveDeref( dd, gArg1 );
-//    Cudd_RecursiveDeref( dd, gArg2 );
-    Parse_StackFnPush( pStackFn,  gFunc );
-    return gFunc;
-}
-
-
-////////////////////////////////////////////////////////////////////////
-///                       END OF FILE                                ///
-////////////////////////////////////////////////////////////////////////