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Improved output formatting for "PRAGMA parser_trace=ON;".

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FossilOrigin-Name: e43e1171fd7837a08069dc25df4eac14db1c2afe
This commit is contained in:
drh
2015-11-10 14:51:22 +00:00
parent 97e58a2feb
commit 0c4105ee19
3 changed files with 26 additions and 17 deletions
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29
tool/lempar.c
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@ -539,15 +539,13 @@ static void yyStackOverflow(yyParser *yypParser, YYMINORTYPE *yypMinor){
#ifndef NDEBUG
static void yyTraceShift(yyParser *yypParser, int yyNewState){
if( yyTraceFILE ){
int i;
if( yyNewState<YYNSTATE ){
fprintf(yyTraceFILE,"%sShift %d\n",yyTracePrompt,yyNewState);
fprintf(yyTraceFILE,"%sStack:",yyTracePrompt);
for(i=1; i<=yypParser->yyidx; i++)
fprintf(yyTraceFILE," %s",yyTokenName[yypParser->yystack[i].major]);
fprintf(yyTraceFILE,"\n");
fprintf(yyTraceFILE,"%sShift '%s', go to state %d\n",
yyTracePrompt,yyTokenName[yypParser->yystack[yypParser->yyidx].major],
yyNewState);
}else{
fprintf(yyTraceFILE,"%sShift *\n",yyTracePrompt);
fprintf(yyTraceFILE,"%sShift '%s'\n",
yyTracePrompt,yyTokenName[yypParser->yystack[yypParser->yyidx].major]);
}
}
}
@ -623,7 +621,7 @@ static void yy_reduce(
if( yyTraceFILE && yyruleno>=0
&& yyruleno<(int)(sizeof(yyRuleName)/sizeof(yyRuleName[0])) ){
yysize = yyRuleInfo[yyruleno].nrhs;
fprintf(yyTraceFILE, "%sReduce [%s] -> state %d.\n", yyTracePrompt,
fprintf(yyTraceFILE, "%sReduce [%s], go to state %d.\n", yyTracePrompt,
yyRuleName[yyruleno], yymsp[-yysize].stateno);
}
#endif /* NDEBUG */
@ -779,6 +777,12 @@ void Parse(
yypParser->yyerrcnt = -1;
yypParser->yystack[0].stateno = 0;
yypParser->yystack[0].major = 0;
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sInitialize. Empty stack. State 0\n",
yyTracePrompt);
}
#endif
}
yyminorunion.yy0 = yyminor;
#if !defined(YYERRORSYMBOL) && !defined(YYNOERRORRECOVERY)
@ -788,7 +792,7 @@ void Parse(
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sInput %s\n",yyTracePrompt,yyTokenName[yymajor]);
fprintf(yyTraceFILE,"%sInput '%s'\n",yyTracePrompt,yyTokenName[yymajor]);
}
#endif
@ -902,7 +906,12 @@ void Parse(
}while( yymajor!=YYNOCODE && yypParser->yyidx>=0 );
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sReturn\n",yyTracePrompt);
int i;
fprintf(yyTraceFILE,"%sReturn. Stack=",yyTracePrompt);
for(i=1; i<=yypParser->yyidx; i++)
fprintf(yyTraceFILE,"%c%s", i==1 ? '[' : ' ',
yyTokenName[yypParser->yystack[i].major]);
fprintf(yyTraceFILE,"]\n");
}
#endif
return;