lex.c

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#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.
 */
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 )
		{
			if ( HasComma(p->ret) )
			{
				DumpRetValStruct(f, p->ret, i);
			}
			fprintf(f, "\n#ifdef __USE_PROTOS\n");
			if ( HasComma(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);
			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");
			if ( HasComma(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);
			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 )
		{
			if ( HasComma(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 )
		{
			if ( HasComma(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);
			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);
			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.
 */
int
#ifdef __USE_PROTOS
DumpNextNameInDef( char **q, FILE *output )
#else
DumpNextNameInDef( q, output )
char **q;
FILE *output;
#endif
{
	char *p = *q;		/* where did we leave off? */
	int done=0;

	while ( *p!='\0' && *p!=',' ) p++;		/* find end of decl */
	if ( *p == '\0' ) done = 1;
	while ( !isalnum(*p) && *p!='_' ) --p;	/* scan back until valid var character */
	while ( isalnum(*p) || *p=='_' ) --p;	/* scan back until beginning of variable */
	p++;						/* move to start of variable */
	while ( isalnum(*p) || *p=='_'  ) {putc(*p, output); p++;}
	while ( *p!='\0' && *p!=',' ) p++;		/* find end of decl */
	p++;				/* move past this parameter */

	*q = p;				/* record where we left off */
	return done;
}

/* 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 */
void
#ifdef __USE_PROTOS
DumpType( char *s, FILE *f )
#else
DumpType( s, f )
char *s;
FILE *f;
#endif
{
	char *p, *end;
	require(s!=NULL, "DumpType: invalid type string");

	p = &s[strlen(s)-1];		/* start at end of string and work back */

/* MR11 */

	/* scan back until valid variable character */
	while ( !isalnum(*p) && *p!='_' ) --p;
	/* scan back until beginning of variable */
	while ( isalnum(*p) || *p=='_' ) --p;
	if ( p<=s )
	{
		warnNoFL(eMsg1("invalid parameter/return value: '%s'",s));
		return;
	}
	end = p;					/* here is where we stop printing alnum */
	p = s;
	while ( p!=end ) {putc(*p, f); p++;} /* dump until just before variable */
	while ( *p!='\0' )					 /* dump rest w/o variable */
	{
		if ( !isalnum(*p) && *p!='_' ) putc(*p, f);
		p++;
	}
}

/* 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;
}

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

void
#ifdef __USE_PROTOS
DumpRetValStruct( FILE *f, char *ret, int i )
#else
DumpRetValStruct( f, ret, i )
FILE *f;
char *ret;
int i;
#endif
{
	fprintf(f, "\nstruct _rv%d {\n", i);
	while ( *ret != '\0' )
	{
		 while ( *ret==' ' || *ret=='\t' ) ret++; /* ignore white */
		 putc('\t', f);
		 while ( *ret!=',' && *ret!='\0' ) {putc(*ret,f); ret++;}
		 if ( *ret == ',' ) {putc(';', f); putc('\n', f); ret++;}
	}
	fprintf(f, ";\n};\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 );
}