File:  [Research Unix] / researchv9 / jtools / src / pi / parse.c
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 17:21:59 2018 UTC (8 years, 1 month ago) by root
Branches: belllabs, MAIN
CVS tags: researchv9-SUN3_old, researchv9-SUN3, HEAD
researchv9-SUN3(old)

#include "parse.h"
SRCFILE("parse.c")

void *Parse::parse(char *s)
{
	trace( "%d.parse(%s) %d", this, s, goal );
	int yyparse();
	
	LexIndex = -1;
	LexGoal = goal;
	LexString = sf("%s;", s);
	yyerr = 0;
	yyres = 0;
	CurrentExpr = expr;
	yyparse();
	if( !yyerr && !yyres ) yyerr = "parse error";
	error = yyerr;
	return (void*) yyres;
}

void yyerror(char *msg)
{
	yyerr = msg ? msg : "parse error";
}

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