Overview
Comment: | Merge the Lemon enhancement from trunk, resulting in smaller parser tables. |
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Downloads: | Tarball | ZIP archive | SQL archive |
Timelines: | family | ancestors | descendants | both | upsert |
Files: | files | file ages | folders |
SHA3-256: | 641f41722c68f1d51251b10d4d3d7c473d08ee999f6db20023ef6dcd4dc5f6e8 |
User & Date: | drh 2018-04-16 14:36:34 |
Context
2018-04-17
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16:16 | New test cases for upsert. check-in: 907b5a37 user: drh tags: upsert | |
2018-04-16
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14:36 | Merge the Lemon enhancement from trunk, resulting in smaller parser tables. check-in: 641f4172 user: drh tags: upsert | |
14:31 | Lemon enhancements: (1) Do not allocate space for the 'error' non-terminal if it is not used. (2) Fix an off-by-one problem so that 'unsigned char' can be used for symbol numbers if the number of symbols is 256. check-in: 3b7801ac user: drh tags: trunk | |
13:26 | Remove the MySQL upsert syntax. As an optional alias to the insert table name in order to finish out PostgreSQL upsert syntax emulation. check-in: 810d9f63 user: drh tags: upsert | |
Changes
Changes to tool/lemon.c.
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Symbol_init(); State_init(); lem.argv0 = argv[0]; lem.filename = OptArg(0); lem.basisflag = basisflag; lem.nolinenosflag = nolinenosflag; Symbol_new("$"); lem.errsym = Symbol_new("error"); lem.errsym->useCnt = 0; /* Parse the input file */ Parse(&lem); if( lem.errorcnt ) exit(lem.errorcnt); if( lem.nrule==0 ){ fprintf(stderr,"Empty grammar.\n"); exit(1); } /* Count and index the symbols of the grammar */ Symbol_new("{default}"); lem.nsymbol = Symbol_count(); lem.symbols = Symbol_arrayof(); for(i=0; i<lem.nsymbol; i++) lem.symbols[i]->index = i; qsort(lem.symbols,lem.nsymbol,sizeof(struct symbol*), Symbolcmpp); ................................................................................ fprintf(out," int yyinit;\n"); lineno++; fprintf(out," %sTOKENTYPE yy0;\n",name); lineno++; for(i=0; i<arraysize; i++){ if( types[i]==0 ) continue; fprintf(out," %s yy%d;\n",types[i],i+1); lineno++; free(types[i]); } if( lemp->errsym->useCnt ){ fprintf(out," int yy%d;\n",lemp->errsym->dtnum); lineno++; } free(stddt); free(types); fprintf(out,"} YYMINORTYPE;\n"); lineno++; *plineno = lineno; } ................................................................................ } fprintf(out,"#endif\n"); lineno++; } tplt_xfer(lemp->name,in,out,&lineno); /* Generate the defines */ fprintf(out,"#define YYCODETYPE %s\n", minimum_size_type(0, lemp->nsymbol+1, &szCodeType)); lineno++; fprintf(out,"#define YYNOCODE %d\n",lemp->nsymbol+1); lineno++; fprintf(out,"#define YYACTIONTYPE %s\n", minimum_size_type(0,lemp->maxAction,&szActionType)); lineno++; if( lemp->wildcard ){ fprintf(out,"#define YYWILDCARD %d\n", lemp->wildcard->index); lineno++; } print_stack_union(out,lemp,&lineno,mhflag); ................................................................................ fprintf(out,"#define %sARG_PDECL\n",name); lineno++; fprintf(out,"#define %sARG_FETCH\n",name); lineno++; fprintf(out,"#define %sARG_STORE\n",name); lineno++; } if( mhflag ){ fprintf(out,"#endif\n"); lineno++; } if( lemp->errsym->useCnt ){ fprintf(out,"#define YYERRORSYMBOL %d\n",lemp->errsym->index); lineno++; fprintf(out,"#define YYERRSYMDT yy%d\n",lemp->errsym->dtnum); lineno++; } if( lemp->has_fallback ){ fprintf(out,"#define YYFALLBACK 1\n"); lineno++; } |
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Symbol_init(); State_init(); lem.argv0 = argv[0]; lem.filename = OptArg(0); lem.basisflag = basisflag; lem.nolinenosflag = nolinenosflag; Symbol_new("$"); /* Parse the input file */ Parse(&lem); if( lem.errorcnt ) exit(lem.errorcnt); if( lem.nrule==0 ){ fprintf(stderr,"Empty grammar.\n"); exit(1); } lem.errsym = Symbol_find("error"); /* Count and index the symbols of the grammar */ Symbol_new("{default}"); lem.nsymbol = Symbol_count(); lem.symbols = Symbol_arrayof(); for(i=0; i<lem.nsymbol; i++) lem.symbols[i]->index = i; qsort(lem.symbols,lem.nsymbol,sizeof(struct symbol*), Symbolcmpp); ................................................................................ fprintf(out," int yyinit;\n"); lineno++; fprintf(out," %sTOKENTYPE yy0;\n",name); lineno++; for(i=0; i<arraysize; i++){ if( types[i]==0 ) continue; fprintf(out," %s yy%d;\n",types[i],i+1); lineno++; free(types[i]); } if( lemp->errsym && lemp->errsym->useCnt ){ fprintf(out," int yy%d;\n",lemp->errsym->dtnum); lineno++; } free(stddt); free(types); fprintf(out,"} YYMINORTYPE;\n"); lineno++; *plineno = lineno; } ................................................................................ } fprintf(out,"#endif\n"); lineno++; } tplt_xfer(lemp->name,in,out,&lineno); /* Generate the defines */ fprintf(out,"#define YYCODETYPE %s\n", minimum_size_type(0, lemp->nsymbol, &szCodeType)); lineno++; fprintf(out,"#define YYNOCODE %d\n",lemp->nsymbol); lineno++; fprintf(out,"#define YYACTIONTYPE %s\n", minimum_size_type(0,lemp->maxAction,&szActionType)); lineno++; if( lemp->wildcard ){ fprintf(out,"#define YYWILDCARD %d\n", lemp->wildcard->index); lineno++; } print_stack_union(out,lemp,&lineno,mhflag); ................................................................................ fprintf(out,"#define %sARG_PDECL\n",name); lineno++; fprintf(out,"#define %sARG_FETCH\n",name); lineno++; fprintf(out,"#define %sARG_STORE\n",name); lineno++; } if( mhflag ){ fprintf(out,"#endif\n"); lineno++; } if( lemp->errsym && lemp->errsym->useCnt ){ fprintf(out,"#define YYERRORSYMBOL %d\n",lemp->errsym->index); lineno++; fprintf(out,"#define YYERRSYMDT yy%d\n",lemp->errsym->dtnum); lineno++; } if( lemp->has_fallback ){ fprintf(out,"#define YYFALLBACK 1\n"); lineno++; } |