Pccts/antlr/lex.c

	lex.c revision 4fd606d1f5abe38e1f42c38de1d2e895166bd0f4
/*
 * lex.c    --  Generate all of the lexical type files: parser.dlg tokens.h
 *
 * SOFTWARE RIGHTS
 *
 * We reserve no LEGAL rights to the Purdue Compiler Construction Tool
 * Set (PCCTS) -- PCCTS is in the public domain.  An individual or
 * company may do whatever they wish with source code distributed with
 * PCCTS or the code generated by PCCTS, including the incorporation of
 * PCCTS, or its output, into commerical software.
 *
 * We encourage users to develop software with PCCTS.  However, we do ask
 * that credit is given to us for developing PCCTS.  By "credit",
 * we mean that if you incorporate our source code into one of your
 * programs (commercial product, research project, or otherwise) that you
 * acknowledge this fact somewhere in the documentation, research report,
 * etc...  If you like PCCTS and have developed a nice tool with the
 * output, please mention that you developed it using PCCTS.  In
 * addition, we ask that this header remain intact in our source code.
 * As long as these guidelines are kept, we expect to continue enhancing
 * this system and expect to make other tools available as they are
 * completed.
 *
 * ANTLR 1.33
 * Terence Parr
 * Parr Research Corporation
 * with Purdue University and AHPCRC, University of Minnesota
 * 1989-2001
 */

#include <stdio.h>
#include <ctype.h>
/* MR1                                                                      */
/* MR1  10-Apr-97  MR1  Replace use of __STDC__ with __USE_PROTOS       */
/* MR1                                                                      */
#include "pcctscfg.h"
#include "set.h"
#include "syn.h"
#include "hash.h"
#include "generic.h"

#define DLGErrorString "invalid token"

/* Generate a complete lexical description of the lexemes found in the grammar */
void
#ifdef __USE_PROTOS
genLexDescr( void )
#else
genLexDescr( )
#endif
{
    ListNode *p;
    FILE *dlgFile = fopen(OutMetaName(DlgFileName), "w");
    require(dlgFile!=NULL, eMsg1("genLexFile: cannot open %s", OutMetaName(DlgFileName)) );
#ifdef SPECIAL_FOPEN
    special_fopen_actions(OutMetaName(DlgFileName));                 /* MR1 */
#endif
    fprintf(dlgFile, "<<\n");
    fprintf(dlgFile, "/* %s -- DLG Description of scanner\n", DlgFileName);
    fprintf(dlgFile, " *\n");
    fprintf(dlgFile, " * Generated from:");
    {int i; for (i=0; i<NumFiles; i++) fprintf(dlgFile, " %s", FileStr[i]);}
    fprintf(dlgFile, "\n");
    fprintf(dlgFile, " *\n");
    fprintf(dlgFile, " * Terence Parr, Will Cohen, and Hank Dietz: 1989-2001\n");
    fprintf(dlgFile, " * Purdue University Electrical Engineering\n");
    fprintf(dlgFile, " * With AHPCRC, University of Minnesota\n");
    fprintf(dlgFile, " * ANTLR Version %s\n", Version);
    fprintf(dlgFile, " */\n\n");
    if (FirstAction != NULL ) dumpAction( FirstAction, dlgFile, 0, -1, 0, 1 );  /* MR11 MR15b */
    fprintf(dlgFile, "#define ANTLR_VERSION %s\n", VersionDef);
    if ( GenCC )
    {
        if ( !UserDefdTokens ) fprintf(dlgFile, "#include \"%s\"\n", DefFileName);
        else fprintf(dlgFile, "#include %s\n", UserTokenDefsFile);
        fprintf(dlgFile, "#include \"%s\"\n", ATOKEN_H);
        if ( GenAST ) fprintf(dlgFile, "#include \"%s\"\n", ASTBASE_H);
        if ( HdrAction != NULL ) dumpAction( HdrAction, dlgFile, 0, -1, 0, 1 );
    }
    else
    {
        fprintf(dlgFile, "#include \"pcctscfg.h\"\n");
        fprintf(dlgFile, "#include \"pccts_stdio.h\"\n");
        if ( strcmp(ParserName, DefaultParserName)!=0 )
            fprintf(dlgFile, "#define %s %s\n", DefaultParserName, ParserName);
        if ( strcmp(ParserName, DefaultParserName)!=0 )
            fprintf(dlgFile, "#include \"%s\"\n", RemapFileName);
        if ( HdrAction != NULL ) dumpAction( HdrAction, dlgFile, 0, -1, 0, 1 );
        if ( FoundGuessBlk )
        {
            fprintf(dlgFile, "#define ZZCAN_GUESS\n");
            fprintf(dlgFile, "#include \"pccts_setjmp.h\"\n");
        }
        if ( OutputLL_k > 1 ) fprintf(dlgFile, "#define LL_K %d\n", OutputLL_k);
        if ( DemandLookahead ) fprintf(dlgFile, "#define DEMAND_LOOK\n");
        if (TraceGen) {
          fprintf(dlgFile,"#ifndef zzTRACE_RULES\n");  /* MR20 */
          fprintf(dlgFile,"#define zzTRACE_RULES\n");  /* MR20 */
          fprintf(dlgFile,"#endif\n");  /* MR22 */
        };
        fprintf(dlgFile, "#include \"antlr.h\"\n");
        if ( GenAST ) {
            fprintf(dlgFile, "#include \"ast.h\"\n");
        }
        if ( UserDefdTokens )
            fprintf(dlgFile, "#include %s\n", UserTokenDefsFile);
        /* still need this one as it has the func prototypes */
        fprintf(dlgFile, "#include \"%s\"\n", DefFileName);
        fprintf(dlgFile, "#include \"dlgdef.h\"\n");
        fprintf(dlgFile, "LOOKAHEAD\n");
        fprintf(dlgFile, "\n");
        fprintf(dlgFile, "void\n");
        fprintf(dlgFile, "#ifdef __USE_PROTOS\n");
        fprintf(dlgFile, "zzerraction(void)\n");
        fprintf(dlgFile, "#else\n");
        fprintf(dlgFile, "zzerraction()\n");
        fprintf(dlgFile, "#endif\n");
        fprintf(dlgFile, "{\n");
        fprintf(dlgFile, "\t(*zzerr)(\"%s\");\n", DLGErrorString);
        fprintf(dlgFile, "\tzzadvance();\n");
        fprintf(dlgFile, "\tzzskip();\n");
        fprintf(dlgFile, "}\n");
    }
    fprintf(dlgFile, ">>\n\n");

    /* dump all actions */

/* MR1                                                                      */
/* MR1  11-Apr-97   Provide mechanism for inserting code into DLG class     */
/* MR1            via <<%%lexmember ....>> & <<%%lexprefix ...>>            */
/* MR1                                                      */
          if (LexActions != NULL) {
            for (p = LexActions->next; p!=NULL; p=p->next)
        {
/* MR1 */   fprintf(dlgFile, "<<%%%%lexaction\n");
            dumpAction( (char *)p->elem, dlgFile, 0, -1, 0, 1 );
            fprintf(dlgFile, ">>\n\n");
        }
      };

/* MR1 */ if (GenCC) {
/* MR1 */   fprintf(dlgFile,"<<%%%%parserclass %s>>\n\n",CurrentClassName);
/* MR1 */ };

/* MR1 */ if (LexPrefixActions != NULL) {
/* MR1 */   for (p = LexPrefixActions->next; p!=NULL; p=p->next)
/* MR1 */       {
/* MR1 */               fprintf(dlgFile, "<<%%%%lexprefix\n");
/* MR1 */               dumpAction( (char *)p->elem, dlgFile, 0, -1, 0, 1 );
/* MR1 */               fprintf(dlgFile, ">>\n\n");
/* MR1 */       }
/* MR1 */ };

/* MR1 */ if (LexMemberActions != NULL) {
/* MR1 */   for (p = LexMemberActions->next; p!=NULL; p=p->next)
/* MR1 */       {
/* MR1 */               fprintf(dlgFile, "<<%%%%lexmember\n");
/* MR1 */               dumpAction( (char *)p->elem, dlgFile, 0, -1, 0, 1 );
/* MR1 */               fprintf(dlgFile, ">>\n\n");
/* MR1 */       }
/* MR1 */ };

    /* dump all regular expression rules/actions (skip sentinel node) */
    if ( ExprOrder == NULL ) {
        warnNoFL("no regular expressions found in grammar");
    }
    else dumpLexClasses(dlgFile);
    fprintf(dlgFile, "%%%%\n");
    fclose( dlgFile );
}

/* For each lexical class, scan ExprOrder looking for expressions
 * in that lexical class.  Print out only those that match.
 * Each element of the ExprOrder list has both an expr and an lclass
 * field.
 */
void
#ifdef __USE_PROTOS
dumpLexClasses( FILE *dlgFile )
#else
dumpLexClasses( dlgFile )
FILE *dlgFile;
#endif
{
    int i;
    TermEntry *t;
    ListNode *p;
    Expr *q;

    for (i=0; i<NumLexClasses; i++)
    {
        fprintf(dlgFile, "\n%%%%%s\n\n", lclass[i].classnum);
        for (p=ExprOrder->next; p!=NULL; p=p->next)
        {
            q = (Expr *) p->elem;
            if ( q->lclass != i ) continue;
            lexmode(i);
            t = (TermEntry *) hash_get(Texpr, q->expr);
            require(t!=NULL, eMsg1("genLexDescr: rexpr %s not in hash table",q->expr) );
            if ( t->token == EpToken ) continue;
            fprintf(dlgFile, "%s\n\t<<\n", StripQuotes(q->expr));
            /* replace " killed by StripQuotes() */
            q->expr[ strlen(q->expr) ] = '"';
            if ( !GenCC ) {
                if ( TokenString(t->token) != NULL )
                    fprintf(dlgFile, "\t\tNLA = %s;\n", TokenString(t->token));
                else
                    fprintf(dlgFile, "\t\tNLA = %d;\n", t->token);
            }
            if ( t->action != NULL ) dumpAction( t->action, dlgFile, 2,-1,0,1 );
            if ( GenCC ) {
                if ( TokenString(t->token) != NULL )
                    fprintf(dlgFile, "\t\treturn %s;\n", TokenString(t->token));
                else
                    fprintf(dlgFile, "\t\treturn (ANTLRTokenType)%d;\n", t->token);
            }
            fprintf(dlgFile, "\t>>\n\n");
        }
    }
}

/* Strip the leading path (if any) from a filename */
char *
#ifdef __USE_PROTOS
StripPath( char *fileName )
#else
StripPath( fileName )
char *fileName;
#endif
{
    char *p;
    static char dirSym[2] = DirectorySymbol;

    if(NULL != (p = strrchr(fileName, dirSym[0])))
        p++;
    else
        p = fileName;

    return(p);
}

/* Generate a list of #defines && list of struct definitions for
 * aggregate retv's */
void
#ifdef __USE_PROTOS
genDefFile( void )
#else
genDefFile( )
#endif
{
    int i;

    /* If C++ mode and #tokdef used, then don't need anything in here since
     * C++ puts all definitions in the class file name.
     */
    if ( GenCC && UserTokenDefsFile ) return;
    if ( MR_Inhibit_Tokens_h_Gen) return;

    DefFile = fopen(OutMetaName(DefFileName), "w");
    require(DefFile!=NULL, eMsg1("genDefFile: cannot open %s", OutMetaName(DefFileName)) );
#ifdef SPECIAL_FOPEN
    special_fopen_actions(OutMetaName(DefFileName));                 /* MR1 */
#endif
    fprintf(DefFile, "#ifndef %s\n", StripPath(gate_symbol(DefFileName)));
    fprintf(DefFile, "#define %s\n", StripPath(gate_symbol(DefFileName)));

    fprintf(DefFile, "/* %s -- List of labelled tokens and stuff\n", DefFileName);
    fprintf(DefFile, " *\n");
    fprintf(DefFile, " * Generated from:");
    for (i=0; i<NumFiles; i++) fprintf(DefFile, " %s", FileStr[i]);
    fprintf(DefFile, "\n");
    fprintf(DefFile, " *\n");
    fprintf(DefFile, " * Terence Parr, Will Cohen, and Hank Dietz: 1989-2001\n");
    fprintf(DefFile, " * Purdue University Electrical Engineering\n");
    fprintf(DefFile, " * ANTLR Version %s\n", Version);
    fprintf(DefFile, " */\n");

    if ( !GenCC && LexGen ) {
        fprintf(DefFile,"#define zzEOF_TOKEN %d\n",
                TokenInd!=NULL?TokenInd[EofToken]:EofToken);
    }

    if ( !UserDefdTokens )
    {
        int first=1;

        if ( GenCC ) fprintf(DefFile, "enum ANTLRTokenType {\n");
        for (i=1; i<TokenNum; i++)
        {
            /* Don't do EpToken or expr w/o labels */
            if ( TokenString(i)!=NULL && i != EpToken )
            {
                TermEntry *p;

                if ( WarningLevel>1 )
                {
                    int j;
                    /* look in all lexclasses for the reg expr */

/* MR10  Derek Pappas                                                */
/* MR10     A #tokclass doesn't have associated regular expressiones */
/* MR10        so don't warn user about it's omission                */

                    p = (TermEntry *) hash_get(Tname, TokenString(i));

                    if (p != NULL && ! p->classname) {
                        for (j=0; j<NumLexClasses; j++)
                        {
                            lexmode(j);
                            if ( ExprString(i)!=NULL ) break;
                        }
                        if ( j>=NumLexClasses )
                        {
                            warnNoFL(eMsg1("token label has no associated rexpr: %s",TokenString(i)));
                        }
                    };
                }
                require((p=(TermEntry *)hash_get(Tname, TokenString(i))) != NULL,
                        "token not in sym tab when it should be");
                if ( !p->classname )
                {
                    if ( GenCC ) {
                        if ( !first ) fprintf(DefFile, ",\n");
                        first = 0;
                        fprintf(DefFile, "\t%s=%d", TokenString(i), i);
                    }
                    else
                        fprintf(DefFile, "#define %s %d\n", TokenString(i), i);
                }
            }
        }
/* MR1                                                                      */
/* MR1  10-Apr-97 133MR1    Prevent use of varying sizes of integer     */
/* MR1              for the enum ANTLRTokenType                             */
/* MR1                                         */
        if ( GenCC ) {                                               /* MR1 */
             if ( !first ) fprintf(DefFile, ",\n");                  /* MR14 */
             fprintf(DefFile, "\tDLGminToken=0");                 /* MR1 */
             fprintf(DefFile, ",\n\tDLGmaxToken=9999};\n");          /* MR1 */
                };                                                   /* MR1 */
    }

    if ( !GenCC ) GenRulePrototypes(DefFile, SynDiag);

    fprintf(DefFile, "\n#endif\n");
}

void
#ifdef __USE_PROTOS
GenRemapFile( void )
#else
GenRemapFile( )
#endif
{
    if ( strcmp(ParserName, DefaultParserName)!=0 )
    {
        FILE *f;
        int i;

        f = fopen(OutMetaName(RemapFileName), "w");
        require(f!=NULL, eMsg1("GenRemapFile: cannot open %s", OutMetaName(RemapFileName)) );
#ifdef SPECIAL_FOPEN
        special_fopen_actions(OutMetaName(RemapFileName));           /* MR1 */
#endif
        fprintf(f, "/* %s -- List of symbols to remap\n", RemapFileName);
        fprintf(f, " *\n");
        fprintf(f, " * Generated from:");
        for (i=0; i<NumFiles; i++) fprintf(f, " %s", FileStr[i]);
        fprintf(f, "\n");
        fprintf(f, " *\n");
        fprintf(f, " * Terence Parr, Will Cohen, and Hank Dietz: 1989-2001\n");
        fprintf(f, " * Purdue University Electrical Engineering\n");
        fprintf(f, " * ANTLR Version %s\n", Version);
        fprintf(f, " */\n");

        GenRuleFuncRedefs(f, SynDiag);
        GenPredefinedSymbolRedefs(f);
        if ( GenAST ) GenASTSymbolRedefs(f);
        GenSetRedefs(f);

        fclose(f);
    }
}

/* Generate a bunch of #defines that rename all functions to be "ParserName_func" */
void
#ifdef __USE_PROTOS
GenRuleFuncRedefs( FILE *f, Junction *p )
#else
GenRuleFuncRedefs( f, p )
FILE *f;
Junction *p;
#endif
{
    fprintf(f, "\n/* rename rule functions to be 'ParserName_func' */\n");
    while ( p!=NULL )
    {
        fprintf(f, "#define %s %s_%s\n", p->rname, ParserName, p->rname);
        p = (Junction *)p->p2;
    }
}

/* Generate a bunch of #defines that rename all standard symbols to be
 * "ParserName_symbol".  The list of standard symbols to change is in
 * globals.c.
 */
void
#ifdef __USE_PROTOS
GenPredefinedSymbolRedefs( FILE *f )
#else
GenPredefinedSymbolRedefs( f )
FILE *f;
#endif
{
    char **p;

    fprintf(f, "\n/* rename PCCTS-supplied symbols to be 'ParserName_symbol' */\n");
    for (p = &StandardSymbols[0]; *p!=NULL; p++)
    {
        fprintf(f, "#define %s %s_%s\n", *p, ParserName, *p);
    }
}

/* Generate a bunch of #defines that rename all AST symbols to be
 * "ParserName_symbol".  The list of AST symbols to change is in
 * globals.c.
 */
void
#ifdef __USE_PROTOS
GenASTSymbolRedefs( FILE *f )
#else
GenASTSymbolRedefs( f )
FILE *f;
#endif
{
    char **p;

    fprintf(f, "\n/* rename PCCTS-supplied AST symbols to be 'ParserName_symbol' */\n");
    for (p = &ASTSymbols[0]; *p!=NULL; p++)
    {
        fprintf(f, "#define %s %s_%s\n", *p, ParserName, *p);
    }
}

/* redefine all sets generated by ANTLR; WARNING:  'zzerr', 'setwd' must match
 * use in bits.c (DumpSetWd() etc...)
 */
void
#ifdef __USE_PROTOS
GenSetRedefs( FILE *f )
#else
GenSetRedefs( f )
FILE *f;
#endif
{
    int i;

    for (i=1; i<=wordnum; i++)
    {
        fprintf(f, "#define setwd%d %s_setwd%d\n", i, ParserName, i);
    }
    for (i=1; i<=esetnum; i++)
    {
        fprintf(f, "#define zzerr%d %s_err%d\n", i, ParserName, i);
    }
}

/* Find all return types/parameters that require structs and def
 * all rules with ret types.
 *
 * This is for the declaration, not the definition.
 */
void
#ifdef __USE_PROTOS
GenRulePrototypes( FILE *f, Junction *p )
#else
GenRulePrototypes( f, p )
FILE *f;
Junction *p;
#endif
{
    int i;

    i = 1;
    while ( p!=NULL )
    {
        if ( p->ret != NULL )
        {
/* MR23 */  if ( hasMultipleOperands(p->ret) )
            {
                DumpRetValStruct(f, p->ret, i);
            }
            fprintf(f, "\n#ifdef __USE_PROTOS\n");
/* MR23 */  if ( hasMultipleOperands(p->ret) )
            {
                fprintf(f, "extern struct _rv%d", i);
            }
            else
            {
                fprintf(f, "extern ");
                DumpType(p->ret, f);
            }
            fprintf(f, " %s%s(", RulePrefix, p->rname);
            DumpANSIFunctionArgDef(f,p,1 /* emit initializers ? */);
            fprintf(f, ";\n");
            fprintf(f, "#else\n");
/* MR23 */  if ( hasMultipleOperands(p->ret) )
            {
                fprintf(f, "extern struct _rv%d", i);
            }
            else
            {
                fprintf(f, "extern ");
                DumpType(p->ret, f);
            }
            fprintf(f, " %s%s();\n", RulePrefix, p->rname);
            fprintf(f, "#endif\n");
        }
        else
        {
            fprintf(f, "\n#ifdef __USE_PROTOS\n");
            fprintf(f, "void %s%s(", RulePrefix, p->rname);
            DumpANSIFunctionArgDef(f,p, 1 /* emit initializers ? */ );
            fprintf(f, ";\n");
#ifdef OLD
            if ( p->pdecl != NULL || GenAST )
            {
                if ( GenAST ) {
                    fprintf(f, "AST **%s",(p->pdecl!=NULL)?",":"");
                }
                if ( p->pdecl!=NULL ) fprintf(f, "%s", p->pdecl);
            }
            else fprintf(f, "void");
            fprintf(f, ");\n");
#endif
            fprintf(f, "#else\n");
            fprintf(f, "extern void %s%s();\n", RulePrefix, p->rname);
            fprintf(f, "#endif\n");
        }
        i++;
        p = (Junction *)p->p2;
    }
}

/* Define all rules in the class.h file; generate any required
 * struct definitions first, however.
 */
void
#ifdef __USE_PROTOS
GenRuleMemberDeclarationsForCC( FILE *f, Junction *q )
#else
GenRuleMemberDeclarationsForCC( f, q )
FILE *f;
Junction *q;
#endif
{
    Junction *p = q;
    int i;

    fprintf(f, "private:\n");

    /* Dump dflt handler declaration */
    fprintf(f, "\tvoid zzdflthandlers( int _signal, int *_retsignal );\n\n");

    fprintf(f, "public:\n");

    /* Dump return value structs */
    i = 1;
    while ( p!=NULL )
    {
        if ( p->ret != NULL )
        {
/* MR23 */  if ( hasMultipleOperands(p->ret) )
            {
                DumpRetValStruct(f, p->ret, i);
            }
        }
        i++;
        p = (Junction *)p->p2;
    }

    /* Dump member func defs && CONSTRUCTOR */
    fprintf(f, "\t%s(ANTLRTokenBuffer *input);\n", CurrentClassName);
/*
    fprintf(f, "\t%s(ANTLRTokenBuffer *input, ANTLRTokenType eof);\n",
               CurrentClassName);
*/

    i = 1;
    p = q;
    while ( p!=NULL )
    {
        if ( p->ret != NULL )
        {
/* MR23 */  if ( hasMultipleOperands(p->ret) )
            {
                fprintf(f, "\tstruct _rv%d", i);
            }
            else
            {
                fprintf(f, "\t");
                DumpType(p->ret, f);
            }
            fprintf(f, " %s%s(",RulePrefix,p->rname);
            DumpANSIFunctionArgDef(f,p, 1 /* emit initializers ? */ );
            fprintf(f, ";\n");
#ifdef OLD
            if ( p->pdecl != NULL || GenAST )
            {
                if ( GenAST ) fprintf(f, "ASTBase **%s",(p->pdecl!=NULL)?",":"");
                if ( p->pdecl!=NULL ) fprintf(f, "%s", p->pdecl);
            }
            fprintf(f, ");\n");
#endif
        }
        else
        {
            fprintf(f, "\tvoid %s%s(",RulePrefix,p->rname);
            DumpANSIFunctionArgDef(f,p, 1 /* emit initializers ? */);
            fprintf(f, ";\n");
#ifdef OLD
            if ( p->pdecl != NULL || GenAST )
            {
                if ( GenAST ) fprintf(f, "ASTBase **%s",(p->pdecl!=NULL)?",":"");
                if ( p->pdecl!=NULL ) fprintf(f, "%s", p->pdecl);
            }
            fprintf(f, ");\n");
#endif
        }
        i++;
        p = (Junction *)p->p2;
    }
}

/* Given a list of ANSI-style parameter declarations, print out a
 * comma-separated list of the symbols (w/o types).
 * Basically, we look for a comma, then work backwards until start of
 * the symbol name.  Then print it out until 1st non-alnum char.  Now,
 * move on to next parameter.
 *
 */

/* MR5  Jan Mikkelsen 26-May-97 - added initalComma parameter              */

void
#ifdef __USE_PROTOS
DumpListOfParmNames(char *pdecl, FILE *output, int initialComma)    /* MR5 */
#else
DumpListOfParmNames(pdecl, output, initialComma)                    /* MR5 */
char *pdecl;                                                        /* MR5 */
FILE *output;                                                       /* MR5 */
int initialComma;                                                   /* MR5 */
#endif
{
    int firstTime = 1, done = 0;
    require(output!=NULL, "DumpListOfParmNames: NULL parm");

    if ( pdecl == NULL ) return;
    while ( !done )
    {
        if ( !firstTime || initialComma ) putc(',', output);        /* MR5 */
        done = DumpNextNameInDef(&pdecl, output);
        firstTime = 0;
    }
}

/* given a list of parameters or return values, dump the next
 * name to output.  Return 1 if last one just printed, 0 if more to go.
 */

/* MR23 Total rewrite */

int
#ifdef __USE_PROTOS
DumpNextNameInDef( char **q, FILE *output )
#else
DumpNextNameInDef( q, output )
char **q;
FILE *output;
#endif
{
    char *p;
    char *t;
    char *pDataType;
    char *pSymbol;
    char *pEqualSign;
    char *pValue;
    char *pSeparator;
    int nest = 0;

    p = endFormal(*q,
                  &pDataType,
                  &pSymbol,
                  &pEqualSign,
                  &pValue,
                  &pSeparator,
                  &nest);

    /* MR26 Handle rule arguments such as: IIR_Bool (IIR_Decl::*contstraint)()
       For this we need to strip off anything which follows the symbol.
     */

/* MR26 */  t = pSymbol;
/* MR26 */  if (t != NULL) {
/* MR26 */      for (t = pSymbol; *t != 0; t++) {
/* MR26 */          if (! (isalpha(*t) || isdigit(*t) || *t == '_' || *t == '$')) break;
/* MR26 */      }
/* MR26 */  }
/* MR26 */  fprintf(output,strBetween(pSymbol, t, pSeparator));

    *q = p;
    return (*pSeparator  == 0);
}

/* Given a list of ANSI-style parameter declarations, dump K&R-style
 * declarations, one per line for each parameter.  Basically, convert
 * comma to semi-colon, newline.
 */
void
#ifdef __USE_PROTOS
DumpOldStyleParms( char *pdecl, FILE *output )
#else
DumpOldStyleParms( pdecl, output )
char *pdecl;
FILE *output;
#endif
{
    require(output!=NULL, "DumpOldStyleParms: NULL parm");

    if ( pdecl == NULL ) return;
    while ( *pdecl != '\0' )
    {
        if ( *pdecl == ',' )
        {
            pdecl++;
            putc(';', output); putc('\n', output);
            while ( *pdecl==' ' || *pdecl=='\t' || *pdecl=='\n' ) pdecl++;
        }
        else {putc(*pdecl, output); pdecl++;}
    }
    putc(';', output);
    putc('\n', output);
}

/* Take in a type definition (type + symbol) and print out type only */
/* MR23 Total rewrite */

void
#ifdef __USE_PROTOS
DumpType( char *s, FILE *f )
#else
DumpType( s, f )
char *s;
FILE *f;
#endif
{
    char *p;
    char *pDataType;
    char *pSymbol;
    char *pEqualSign;
    char *pValue;
    char *pSeparator;
    int nest = 0;

    require(s!=NULL, "DumpType: invalid type string");

    p = endFormal(s,
                  &pDataType,
                  &pSymbol,
                  &pEqualSign,
                  &pValue,
                  &pSeparator,
                  &nest);
    fprintf(f,strBetween(pDataType, pSymbol, pSeparator));
}

/* check to see if string e is a word in string s */
int
#ifdef __USE_PROTOS
strmember( char *s, char *e )
#else
strmember( s, e )
char *s;
char *e;
#endif
{
    register char *p;
    require(s!=NULL&&e!=NULL, "strmember: NULL string");

    if ( *e=='\0' ) return 1;   /* empty string is always member */
    do {
    while ( *s!='\0' && !isalnum(*s) && *s!='_' )
    ++s;
    p = e;
    while ( *p!='\0' && *p==*s ) {p++; s++;}
    if ( *p=='\0' ) {
        if ( *s=='\0' ) return 1;
        if ( !isalnum (*s) && *s != '_' ) return 1;
    }
    while ( isalnum(*s) || *s == '_' )
    ++s;
    } while ( *s!='\0' );
    return 0;
}

#if 0

/* MR23 Replaced by hasMultipleOperands() */

int
#ifdef __USE_PROTOS
HasComma( char *s )
#else
HasComma( s )
char *s;
#endif
{
    while (*s!='\0')
        if ( *s++ == ',' ) return 1;
    return 0;
}
#endif


/* MR23 Total rewrite */

void
#ifdef __USE_PROTOS
DumpRetValStruct( FILE *f, char *ret, int i )
#else
DumpRetValStruct( f, ret, i )
FILE *f;
char *ret;
int i;
#endif
{
    char *p = ret;
    char *pDataType;
    char *pSymbol;
    char *pEqualSign;
    char *pValue;
    char *pSeparator;
    int nest = 0;

    fprintf(f, "\nstruct _rv%d {\n", i);
    while (*p != 0 && nest == 0) {
        p = endFormal(p,
                      &pDataType,
                      &pSymbol,
                      &pEqualSign,
                      &pValue,
                      &pSeparator,
                      &nest);
        fprintf(f,"\t");
        fprintf(f,strBetween(pDataType, pSymbol, pSeparator));
        fprintf(f," ");
        fprintf(f,strBetween(pSymbol, pEqualSign, pSeparator));
        fprintf(f,";\n");
    }
    fprintf(f,"};\n");
}

/* given "s" yield s -- DESTRUCTIVE (we modify s if starts with " else return s) */
char *
#ifdef __USE_PROTOS
StripQuotes( char *s )
#else
StripQuotes( s )
char *s;
#endif
{
    if ( *s == '"' )
    {
        s[ strlen(s)-1 ] = '\0';    /* remove last quote */
        return( s+1 );              /* return address past initial quote */
    }
    return( s );
}