mirror of
https://github.com/YosysHQ/abc.git
synced 2026-09-07 11:11:19 +02:00
Version abc80130
This commit is contained in:
@@ -1,3 +1,2 @@
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SRC += src/bdd/parse/parseCore.c \
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src/bdd/parse/parseEqn.c \
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src/bdd/parse/parseStack.c
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@@ -36,19 +36,18 @@
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////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////
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/// MACRO DEFINITIONS ///
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/// MACRO DEFITIONS ///
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////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////
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/// FUNCTION DEFINITIONS ///
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/// FUNCTION DEFITIONS ///
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////////////////////////////////////////////////////////////////////////
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/*=== parseCore.c =============================================================*/
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extern DdNode * Parse_FormulaParser( FILE * pOutput, char * pFormula, int nVars, int nRanks,
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char * ppVarNames[], DdManager * dd, DdNode * pbVars[] );
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#endif
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////////////////////////////////////////////////////////////////////////
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/// END OF FILE ///
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////////////////////////////////////////////////////////////////////////
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#endif
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@@ -89,7 +89,7 @@
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static DdNode * Parse_ParserPerformTopOp( DdManager * dd, Parse_StackFn_t * pStackFn, int Oper );
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////////////////////////////////////////////////////////////////////////
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/// FUNCTION DEFINITIONS ///
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/// FUNCTION DEFITIONS ///
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////////////////////////////////////////////////////////////////////////
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/**Function*************************************************************
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@@ -1,349 +0,0 @@
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/**CFile****************************************************************
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FileNameIn [parseEqn.c]
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PackageName [ABC: Logic synthesis and verification system.]
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Synopsis [Boolean formula parser.]
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Author [Alan Mishchenko]
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Affiliation [UC Berkeley]
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Date [Ver. 1.0. Started - December 18, 2006.]
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Revision [$Id: parseEqn.c,v 1.0 2006/12/18 00:00:00 alanmi Exp $]
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***********************************************************************/
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////////////////////////////////////////////////////////////////////////
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/// DECLARATIONS ///
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////////////////////////////////////////////////////////////////////////
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#include "parseInt.h"
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#include "vec.h"
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#include "hop.h"
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// the list of operation symbols to be used in expressions
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#define PARSE_EQN_SYM_OPEN '(' // opening paranthesis
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#define PARSE_EQN_SYM_CLOSE ')' // closing paranthesis
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#define PARSE_EQN_SYM_CONST0 '0' // constant 0
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#define PARSE_EQN_SYM_CONST1 '1' // constant 1
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#define PARSE_EQN_SYM_NEG '!' // negation before the variable
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#define PARSE_EQN_SYM_AND '*' // logic AND
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#define PARSE_EQN_SYM_OR '+' // logic OR
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// the list of opcodes (also specifying operation precedence)
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#define PARSE_EQN_OPER_NEG 10 // negation
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#define PARSE_EQN_OPER_AND 9 // logic AND
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#define PARSE_EQN_OPER_OR 7 // logic OR
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#define PARSE_EQN_OPER_MARK 1 // OpStack token standing for an opening paranthesis
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// these are values of the internal Flag
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#define PARSE_EQN_FLAG_START 1 // after the opening parenthesis
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#define PARSE_EQN_FLAG_VAR 2 // after operation is received
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#define PARSE_EQN_FLAG_OPER 3 // after operation symbol is received
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#define PARSE_EQN_FLAG_ERROR 4 // when error is detected
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#define PARSE_EQN_STACKSIZE 1000
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static Hop_Obj_t * Parse_ParserPerformTopOp( Hop_Man_t * pMan, Parse_StackFn_t * pStackFn, int Oper );
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////////////////////////////////////////////////////////////////////////
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/// FUNCTION DEFINITIONS ///
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////////////////////////////////////////////////////////////////////////
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/**Function*************************************************************
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Synopsis [Derives the AIG corresponding to the equation.]
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Description [Takes the stream to output messages, the formula, the vector
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of variable names and the AIG manager.]
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SideEffects []
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SeeAlso []
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***********************************************************************/
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Hop_Obj_t * Parse_FormulaParserEqn( FILE * pOutput, char * pFormInit, Vec_Ptr_t * vVarNames, Hop_Man_t * pMan )
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{
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char * pFormula;
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Parse_StackFn_t * pStackFn;
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Parse_StackOp_t * pStackOp;
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Hop_Obj_t * gFunc;
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char * pTemp, * pName;
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int nParans, fFound, Flag;
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int Oper, Oper1, Oper2;
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int i, v;
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// make sure that the number of opening and closing parantheses is the same
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nParans = 0;
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for ( pTemp = pFormInit; *pTemp; pTemp++ )
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if ( *pTemp == '(' )
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nParans++;
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else if ( *pTemp == ')' )
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nParans--;
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if ( nParans != 0 )
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{
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fprintf( pOutput, "Parse_FormulaParserEqn(): Different number of opening and closing parantheses ().\n" );
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return NULL;
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}
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// copy the formula
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pFormula = ALLOC( char, strlen(pFormInit) + 3 );
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sprintf( pFormula, "(%s)", pFormInit );
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// start the stacks
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pStackFn = Parse_StackFnStart( PARSE_EQN_STACKSIZE );
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pStackOp = Parse_StackOpStart( PARSE_EQN_STACKSIZE );
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Flag = PARSE_EQN_FLAG_START;
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for ( pTemp = pFormula; *pTemp; pTemp++ )
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{
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switch ( *pTemp )
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{
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// skip all spaces, tabs, and end-of-lines
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case ' ':
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case '\t':
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case '\r':
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case '\n':
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continue;
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case PARSE_EQN_SYM_CONST0:
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Parse_StackFnPush( pStackFn, Hop_ManConst0(pMan) ); // Cudd_Ref( b0 );
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if ( Flag == PARSE_EQN_FLAG_VAR )
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{
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fprintf( pOutput, "Parse_FormulaParserEqn(): No operation symbol before constant 0.\n" );
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Flag = PARSE_EQN_FLAG_ERROR;
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break;
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}
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Flag = PARSE_EQN_FLAG_VAR;
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break;
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case PARSE_EQN_SYM_CONST1:
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Parse_StackFnPush( pStackFn, Hop_ManConst1(pMan) ); // Cudd_Ref( b1 );
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if ( Flag == PARSE_EQN_FLAG_VAR )
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{
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fprintf( pOutput, "Parse_FormulaParserEqn(): No operation symbol before constant 1.\n" );
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Flag = PARSE_EQN_FLAG_ERROR;
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break;
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}
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Flag = PARSE_EQN_FLAG_VAR;
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break;
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case PARSE_EQN_SYM_NEG:
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if ( Flag == PARSE_EQN_FLAG_VAR )
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{// if NEGBEF follows a variable, AND is assumed
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Parse_StackOpPush( pStackOp, PARSE_EQN_OPER_AND );
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Flag = PARSE_EQN_FLAG_OPER;
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}
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Parse_StackOpPush( pStackOp, PARSE_EQN_OPER_NEG );
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break;
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case PARSE_EQN_SYM_AND:
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case PARSE_EQN_SYM_OR:
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if ( Flag != PARSE_EQN_FLAG_VAR )
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{
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fprintf( pOutput, "Parse_FormulaParserEqn(): There is no variable before AND, EXOR, or OR.\n" );
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Flag = PARSE_EQN_FLAG_ERROR;
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break;
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}
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if ( *pTemp == PARSE_EQN_SYM_AND )
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Parse_StackOpPush( pStackOp, PARSE_EQN_OPER_AND );
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else //if ( *pTemp == PARSE_EQN_SYM_OR )
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Parse_StackOpPush( pStackOp, PARSE_EQN_OPER_OR );
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Flag = PARSE_EQN_FLAG_OPER;
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break;
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case PARSE_EQN_SYM_OPEN:
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if ( Flag == PARSE_EQN_FLAG_VAR )
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{
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// Parse_StackOpPush( pStackOp, PARSE_EQN_OPER_AND );
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fprintf( pOutput, "Parse_FormulaParserEqn(): An opening paranthesis follows a var without operation sign.\n" );
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Flag = PARSE_EQN_FLAG_ERROR;
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break;
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}
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Parse_StackOpPush( pStackOp, PARSE_EQN_OPER_MARK );
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// after an opening bracket, it feels like starting over again
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Flag = PARSE_EQN_FLAG_START;
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break;
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case PARSE_EQN_SYM_CLOSE:
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if ( !Parse_StackOpIsEmpty( pStackOp ) )
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{
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while ( 1 )
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{
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if ( Parse_StackOpIsEmpty( pStackOp ) )
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{
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fprintf( pOutput, "Parse_FormulaParserEqn(): There is no opening paranthesis\n" );
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Flag = PARSE_EQN_FLAG_ERROR;
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break;
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}
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Oper = Parse_StackOpPop( pStackOp );
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if ( Oper == PARSE_EQN_OPER_MARK )
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break;
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// perform the given operation
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if ( Parse_ParserPerformTopOp( pMan, pStackFn, Oper ) == NULL )
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{
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fprintf( pOutput, "Parse_FormulaParserEqn(): Unknown operation\n" );
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free( pFormula );
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return NULL;
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}
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}
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}
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else
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{
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fprintf( pOutput, "Parse_FormulaParserEqn(): There is no opening paranthesis\n" );
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Flag = PARSE_EQN_FLAG_ERROR;
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break;
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}
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if ( Flag != PARSE_EQN_FLAG_ERROR )
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Flag = PARSE_EQN_FLAG_VAR;
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break;
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default:
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// scan the next name
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for ( i = 0; pTemp[i] &&
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pTemp[i] != ' ' && pTemp[i] != '\t' && pTemp[i] != '\r' && pTemp[i] != '\n' &&
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pTemp[i] != PARSE_EQN_SYM_AND && pTemp[i] != PARSE_EQN_SYM_OR && pTemp[i] != PARSE_EQN_SYM_CLOSE; i++ )
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{
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if ( pTemp[i] == PARSE_EQN_SYM_NEG || pTemp[i] == PARSE_EQN_SYM_OPEN )
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{
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fprintf( pOutput, "Parse_FormulaParserEqn(): The negation sign or an opening paranthesis inside the variable name.\n" );
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Flag = PARSE_EQN_FLAG_ERROR;
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break;
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}
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}
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// variable name is found
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fFound = 0;
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Vec_PtrForEachEntry( vVarNames, pName, v )
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if ( strncmp(pTemp, pName, i) == 0 && strlen(pName) == (unsigned)i )
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{
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pTemp += i-1;
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fFound = 1;
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break;
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}
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if ( !fFound )
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{
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fprintf( pOutput, "Parse_FormulaParserEqn(): The parser cannot find var \"%s\" in the input var list.\n", pTemp );
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Flag = PARSE_EQN_FLAG_ERROR;
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break;
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}
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if ( Flag == PARSE_EQN_FLAG_VAR )
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{
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fprintf( pOutput, "Parse_FormulaParserEqn(): The variable name \"%s\" follows another var without operation sign.\n", pTemp );
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Flag = PARSE_EQN_FLAG_ERROR;
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break;
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}
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Parse_StackFnPush( pStackFn, Hop_IthVar( pMan, v ) ); // Cudd_Ref( pbVars[v] );
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Flag = PARSE_EQN_FLAG_VAR;
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break;
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}
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if ( Flag == PARSE_EQN_FLAG_ERROR )
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break; // error exit
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else if ( Flag == PARSE_EQN_FLAG_START )
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continue; // go on parsing
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else if ( Flag == PARSE_EQN_FLAG_VAR )
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while ( 1 )
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{ // check if there are negations in the OpStack
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if ( Parse_StackOpIsEmpty(pStackOp) )
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break;
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Oper = Parse_StackOpPop( pStackOp );
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if ( Oper != PARSE_EQN_OPER_NEG )
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{
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Parse_StackOpPush( pStackOp, Oper );
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break;
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}
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else
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{
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Parse_StackFnPush( pStackFn, Hop_Not(Parse_StackFnPop(pStackFn)) );
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}
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}
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else // if ( Flag == PARSE_EQN_FLAG_OPER )
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while ( 1 )
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{ // execute all the operations in the OpStack
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// with precedence higher or equal than the last one
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Oper1 = Parse_StackOpPop( pStackOp ); // the last operation
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if ( Parse_StackOpIsEmpty(pStackOp) )
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{ // if it is the only operation, push it back
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Parse_StackOpPush( pStackOp, Oper1 );
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break;
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}
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Oper2 = Parse_StackOpPop( pStackOp ); // the operation before the last one
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if ( Oper2 >= Oper1 )
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{ // if Oper2 precedence is higher or equal, execute it
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if ( Parse_ParserPerformTopOp( pMan, pStackFn, Oper2 ) == NULL )
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{
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fprintf( pOutput, "Parse_FormulaParserEqn(): Unknown operation\n" );
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free( pFormula );
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return NULL;
|
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}
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Parse_StackOpPush( pStackOp, Oper1 ); // push the last operation back
|
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}
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else
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{ // if Oper2 precedence is lower, push them back and done
|
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Parse_StackOpPush( pStackOp, Oper2 );
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Parse_StackOpPush( pStackOp, Oper1 );
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break;
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}
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}
|
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}
|
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|
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if ( Flag != PARSE_EQN_FLAG_ERROR )
|
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{
|
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if ( !Parse_StackFnIsEmpty(pStackFn) )
|
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{
|
||||
gFunc = Parse_StackFnPop(pStackFn);
|
||||
if ( Parse_StackFnIsEmpty(pStackFn) )
|
||||
if ( Parse_StackOpIsEmpty(pStackOp) )
|
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{
|
||||
Parse_StackFnFree(pStackFn);
|
||||
Parse_StackOpFree(pStackOp);
|
||||
// Cudd_Deref( gFunc );
|
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free( pFormula );
|
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return gFunc;
|
||||
}
|
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else
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fprintf( pOutput, "Parse_FormulaParserEqn(): Something is left in the operation stack\n" );
|
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else
|
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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 ///
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
@@ -47,18 +47,18 @@ typedef struct ParseStackOpStruct Parse_StackOp_t; // the operation stack
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
/// MACRO DEFINITIONS ///
|
||||
/// MACRO DEFITIONS ///
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
/// FUNCTION DEFINITIONS ///
|
||||
/// FUNCTION DEFITIONS ///
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
|
||||
/*=== parseStack.c =============================================================*/
|
||||
extern Parse_StackFn_t * Parse_StackFnStart ( int nDepth );
|
||||
extern bool Parse_StackFnIsEmpty( Parse_StackFn_t * p );
|
||||
extern void Parse_StackFnPush ( Parse_StackFn_t * p, void * bFunc );
|
||||
extern void * Parse_StackFnPop ( Parse_StackFn_t * p );
|
||||
extern void Parse_StackFnPush ( Parse_StackFn_t * p, DdNode * bFunc );
|
||||
extern DdNode * Parse_StackFnPop ( Parse_StackFn_t * p );
|
||||
extern void Parse_StackFnFree ( Parse_StackFn_t * p );
|
||||
|
||||
extern Parse_StackOp_t * Parse_StackOpStart ( int nDepth );
|
||||
@@ -67,8 +67,7 @@ extern void Parse_StackOpPush ( Parse_StackOp_t * p, int Oper );
|
||||
extern int Parse_StackOpPop ( Parse_StackOp_t * p );
|
||||
extern void Parse_StackOpFree ( Parse_StackOp_t * p );
|
||||
|
||||
#endif
|
||||
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
/// END OF FILE ///
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
#endif
|
||||
|
||||
@@ -24,7 +24,7 @@
|
||||
|
||||
struct ParseStackFnStruct
|
||||
{
|
||||
void ** pData; // the array of elements
|
||||
DdNode ** pData; // the array of elements
|
||||
int Top; // the index
|
||||
int Size; // the stack size
|
||||
};
|
||||
@@ -37,7 +37,7 @@ struct ParseStackOpStruct
|
||||
};
|
||||
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
/// FUNCTION DEFINITIONS ///
|
||||
/// FUNCTION DEFITIONS ///
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
|
||||
/**Function*************************************************************
|
||||
@@ -56,7 +56,7 @@ Parse_StackFn_t * Parse_StackFnStart( int nDepth )
|
||||
Parse_StackFn_t * p;
|
||||
p = ALLOC( Parse_StackFn_t, 1 );
|
||||
memset( p, 0, sizeof(Parse_StackFn_t) );
|
||||
p->pData = ALLOC( void *, nDepth );
|
||||
p->pData = ALLOC( DdNode *, nDepth );
|
||||
p->Size = nDepth;
|
||||
return p;
|
||||
}
|
||||
@@ -88,7 +88,7 @@ bool Parse_StackFnIsEmpty( Parse_StackFn_t * p )
|
||||
SeeAlso []
|
||||
|
||||
***********************************************************************/
|
||||
void Parse_StackFnPush( Parse_StackFn_t * p, void * bFunc )
|
||||
void Parse_StackFnPush( Parse_StackFn_t * p, DdNode * bFunc )
|
||||
{
|
||||
if ( p->Top >= p->Size )
|
||||
{
|
||||
@@ -109,7 +109,7 @@ void Parse_StackFnPush( Parse_StackFn_t * p, void * bFunc )
|
||||
SeeAlso []
|
||||
|
||||
***********************************************************************/
|
||||
void * Parse_StackFnPop( Parse_StackFn_t * p )
|
||||
DdNode * Parse_StackFnPop( Parse_StackFn_t * p )
|
||||
{
|
||||
if ( p->Top == 0 )
|
||||
{
|
||||
|
||||
Reference in New Issue
Block a user