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Lemon update 2010-07-18 11:35:53 on branch trunk
- Add the -p option to lemon to cause conflicts resolved by precedence rules to appear in the parse.out file. (user: drh)
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1 changed files with 17 additions and 0 deletions
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@ -44,6 +44,7 @@ extern int access(char *path, int mode);
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#define MAXRHS 1000
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#endif
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static int showPrecedenceConflict = 0;
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static void *msort(void *list, void *next, int (*cmp)());
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/*
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@ -1419,6 +1420,8 @@ int main(int argc, char **argv)
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{OPT_FLAG, "g", (char*)&rpflag, "Print grammar without actions."},
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{OPT_FLAG, "m", (char*)&mhflag, "Output a makeheaders compatible file."},
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{OPT_FLAG, "l", (char*)&nolinenosflag, "Do not print #line statements."},
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{OPT_FLAG, "p", (char*)&showPrecedenceConflict,
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"Show conflicts resolved by precedence rules"},
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{OPT_FLAG, "q", (char*)&quiet, "(Quiet) Don't print the report file."},
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{OPT_FLAG, "s", (char*)&statistics,
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"Print parser stats to standard output."},
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@ -2896,7 +2899,21 @@ int PrintAction(struct action *ap, FILE *fp, int indent){
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indent,ap->sp->name,ap->x.stp->statenum);
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break;
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case SH_RESOLVED:
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if( showPrecedenceConflict ){
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fprintf(fp,"%*s shift %d -- dropped by precedence",
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indent,ap->sp->name,ap->x.stp->statenum);
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}else{
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result = 0;
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}
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break;
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case RD_RESOLVED:
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if( showPrecedenceConflict ){
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fprintf(fp,"%*s reduce %d -- dropped by precedence",
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indent,ap->sp->name,ap->x.rp->index);
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}else{
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result = 0;
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}
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break;
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case NOT_USED:
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result = 0;
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break;
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