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Lemon update 2015-11-10 14:51:22 on branch trunk

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- Improved output formatting for "PRAGMA parser_trace=ON;". (user: drh)
This commit is contained in:
Randy Heit 2016-03-20 12:20:38 -05:00
parent e9501e8688
commit be870502fd
1 changed files with 19 additions and 10 deletions
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29
tools/lemon/lempar.c
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@ -548,15 +548,13 @@ 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]);
}
}
}
@ -632,7 +630,7 @@ 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 */
@ -789,6 +787,12 @@ 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)
@ -798,7 +802,7 @@ void Parse(
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sInput %s\n",yyTracePrompt,yyTokenName[yymajor]);
fprintf(yyTraceFILE,"%sInput '%s'\n",yyTracePrompt,yyTokenName[yymajor]);
}
#endif
@ -912,7 +916,12 @@ 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;