[9] | 1 | #include "defs.h"
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| 2 |
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| 3 | static int nvectors;
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| 4 | static int nentries;
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| 5 | static short **froms;
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| 6 | static short **tos;
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| 7 | static short *tally;
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| 8 | static short *width;
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| 9 | static short *state_count;
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| 10 | static short *order;
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| 11 | static short *base;
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| 12 | static short *pos;
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| 13 | static int maxtable;
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| 14 | static short *table;
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| 15 | static short *check;
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| 16 | static int lowzero;
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| 17 | static int high;
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| 18 |
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| 19 |
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| 20 | output()
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| 21 | {
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| 22 | free_itemsets();
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| 23 | free_shifts();
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| 24 | free_reductions();
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| 25 | output_prefix();
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| 26 | output_stored_text();
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| 27 | output_defines();
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| 28 | output_rule_data();
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| 29 | output_yydefred();
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| 30 | output_actions();
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| 31 | free_parser();
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| 32 | output_debug();
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| 33 | output_stype();
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| 34 | if (rflag) write_section(tables);
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| 35 | write_section(header);
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| 36 | output_trailing_text();
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| 37 | write_section(body);
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| 38 | output_semantic_actions();
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| 39 | write_section(trailer);
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| 40 | }
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| 41 |
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| 42 |
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| 43 | output_prefix()
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| 44 | {
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| 45 | if (symbol_prefix == NULL)
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| 46 | symbol_prefix = "yy";
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| 47 | else
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| 48 | {
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| 49 | ++outline;
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| 50 | fprintf(code_file, "#define yyparse %sparse\n", symbol_prefix);
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| 51 | ++outline;
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| 52 | fprintf(code_file, "#define yylex %slex\n", symbol_prefix);
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| 53 | ++outline;
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| 54 | fprintf(code_file, "#define yyerror %serror\n", symbol_prefix);
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| 55 | ++outline;
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| 56 | fprintf(code_file, "#define yychar %schar\n", symbol_prefix);
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| 57 | ++outline;
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| 58 | fprintf(code_file, "#define yyval %sval\n", symbol_prefix);
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| 59 | ++outline;
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| 60 | fprintf(code_file, "#define yylval %slval\n", symbol_prefix);
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| 61 | ++outline;
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| 62 | fprintf(code_file, "#define yydebug %sdebug\n", symbol_prefix);
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| 63 | ++outline;
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| 64 | fprintf(code_file, "#define yynerrs %snerrs\n", symbol_prefix);
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| 65 | ++outline;
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| 66 | fprintf(code_file, "#define yyerrflag %serrflag\n", symbol_prefix);
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| 67 | ++outline;
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| 68 | fprintf(code_file, "#define yyss %sss\n", symbol_prefix);
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| 69 | ++outline;
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| 70 | fprintf(code_file, "#define yyssp %sssp\n", symbol_prefix);
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| 71 | ++outline;
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| 72 | fprintf(code_file, "#define yyvs %svs\n", symbol_prefix);
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| 73 | ++outline;
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| 74 | fprintf(code_file, "#define yyvsp %svsp\n", symbol_prefix);
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| 75 | ++outline;
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| 76 | fprintf(code_file, "#define yylhs %slhs\n", symbol_prefix);
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| 77 | ++outline;
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| 78 | fprintf(code_file, "#define yylen %slen\n", symbol_prefix);
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| 79 | ++outline;
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| 80 | fprintf(code_file, "#define yydefred %sdefred\n", symbol_prefix);
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| 81 | ++outline;
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| 82 | fprintf(code_file, "#define yydgoto %sdgoto\n", symbol_prefix);
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| 83 | ++outline;
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| 84 | fprintf(code_file, "#define yysindex %ssindex\n", symbol_prefix);
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| 85 | ++outline;
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| 86 | fprintf(code_file, "#define yyrindex %srindex\n", symbol_prefix);
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| 87 | ++outline;
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| 88 | fprintf(code_file, "#define yygindex %sgindex\n", symbol_prefix);
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| 89 | ++outline;
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| 90 | fprintf(code_file, "#define yytable %stable\n", symbol_prefix);
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| 91 | ++outline;
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| 92 | fprintf(code_file, "#define yycheck %scheck\n", symbol_prefix);
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| 93 | ++outline;
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| 94 | fprintf(code_file, "#define yyname %sname\n", symbol_prefix);
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| 95 | ++outline;
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| 96 | fprintf(code_file, "#define yyrule %srule\n", symbol_prefix);
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| 97 | }
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| 98 | ++outline;
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| 99 | fprintf(code_file, "#define YYPREFIX \"%s\"\n", symbol_prefix);
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| 100 | }
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| 101 |
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| 102 |
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| 103 | output_rule_data()
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| 104 | {
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| 105 | register int i;
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| 106 | register int j;
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| 107 |
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| 108 |
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| 109 | fprintf(output_file, "short %slhs[] = {%42d,", symbol_prefix,
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| 110 | symbol_value[start_symbol]);
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| 111 |
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| 112 | j = 10;
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| 113 | for (i = 3; i < nrules; i++)
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| 114 | {
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| 115 | if (j >= 10)
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| 116 | {
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| 117 | if (!rflag) ++outline;
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| 118 | putc('\n', output_file);
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| 119 | j = 1;
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| 120 | }
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| 121 | else
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| 122 | ++j;
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| 123 |
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| 124 | fprintf(output_file, "%5d,", symbol_value[rlhs[i]]);
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| 125 | }
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| 126 | if (!rflag) outline += 2;
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| 127 | fprintf(output_file, "\n};\n");
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| 128 |
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| 129 | fprintf(output_file, "short %slen[] = {%42d,", symbol_prefix, 2);
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| 130 |
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| 131 | j = 10;
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| 132 | for (i = 3; i < nrules; i++)
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| 133 | {
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| 134 | if (j >= 10)
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| 135 | {
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| 136 | if (!rflag) ++outline;
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| 137 | putc('\n', output_file);
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| 138 | j = 1;
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| 139 | }
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| 140 | else
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| 141 | j++;
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| 142 |
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| 143 | fprintf(output_file, "%5d,", rrhs[i + 1] - rrhs[i] - 1);
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| 144 | }
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| 145 | if (!rflag) outline += 2;
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| 146 | fprintf(output_file, "\n};\n");
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| 147 | }
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| 148 |
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| 149 |
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| 150 | output_yydefred()
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| 151 | {
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| 152 | register int i, j;
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| 153 |
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| 154 | fprintf(output_file, "short %sdefred[] = {%39d,", symbol_prefix,
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| 155 | (defred[0] ? defred[0] - 2 : 0));
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| 156 |
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| 157 | j = 10;
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| 158 | for (i = 1; i < nstates; i++)
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| 159 | {
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| 160 | if (j < 10)
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| 161 | ++j;
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| 162 | else
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| 163 | {
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| 164 | if (!rflag) ++outline;
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| 165 | putc('\n', output_file);
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| 166 | j = 1;
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| 167 | }
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| 168 |
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| 169 | fprintf(output_file, "%5d,", (defred[i] ? defred[i] - 2 : 0));
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| 170 | }
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| 171 |
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| 172 | if (!rflag) outline += 2;
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| 173 | fprintf(output_file, "\n};\n");
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| 174 | }
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| 175 |
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| 176 |
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| 177 | output_actions()
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| 178 | {
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| 179 | nvectors = 2*nstates + nvars;
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| 180 |
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| 181 | froms = NEW2(nvectors, short *);
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| 182 | tos = NEW2(nvectors, short *);
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| 183 | tally = NEW2(nvectors, short);
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| 184 | width = NEW2(nvectors, short);
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| 185 |
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| 186 | token_actions();
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| 187 | FREE(lookaheads);
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| 188 | FREE(LA);
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| 189 | FREE(LAruleno);
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| 190 | FREE(accessing_symbol);
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| 191 |
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| 192 | goto_actions();
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| 193 | FREE(goto_map + ntokens);
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| 194 | FREE(from_state);
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| 195 | FREE(to_state);
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| 196 |
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| 197 | sort_actions();
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| 198 | pack_table();
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| 199 | output_base();
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| 200 | output_table();
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| 201 | output_check();
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| 202 | }
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| 203 |
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| 204 |
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| 205 | token_actions()
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| 206 | {
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| 207 | register int i, j;
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| 208 | register int shiftcount, reducecount;
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| 209 | register int max, min;
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| 210 | register short *actionrow, *r, *s;
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| 211 | register action *p;
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| 212 |
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| 213 | actionrow = NEW2(2*ntokens, short);
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| 214 | for (i = 0; i < nstates; ++i)
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| 215 | {
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| 216 | if (parser[i])
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| 217 | {
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| 218 | for (j = 0; j < 2*ntokens; ++j)
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| 219 | actionrow[j] = 0;
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| 220 |
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| 221 | shiftcount = 0;
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| 222 | reducecount = 0;
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| 223 | for (p = parser[i]; p; p = p->next)
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| 224 | {
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| 225 | if (p->suppressed == 0)
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| 226 | {
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| 227 | if (p->action_code == SHIFT)
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| 228 | {
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| 229 | ++shiftcount;
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| 230 | actionrow[p->symbol] = p->number;
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| 231 | }
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| 232 | else if (p->action_code == REDUCE && p->number != defred[i])
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| 233 | {
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| 234 | ++reducecount;
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| 235 | actionrow[p->symbol + ntokens] = p->number;
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| 236 | }
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| 237 | }
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| 238 | }
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| 239 |
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| 240 | tally[i] = shiftcount;
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| 241 | tally[nstates+i] = reducecount;
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| 242 | width[i] = 0;
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| 243 | width[nstates+i] = 0;
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| 244 | if (shiftcount > 0)
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| 245 | {
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| 246 | froms[i] = r = NEW2(shiftcount, short);
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| 247 | tos[i] = s = NEW2(shiftcount, short);
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| 248 | min = MAXSHORT;
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| 249 | max = 0;
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| 250 | for (j = 0; j < ntokens; ++j)
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| 251 | {
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| 252 | if (actionrow[j])
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| 253 | {
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| 254 | if (min > symbol_value[j])
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| 255 | min = symbol_value[j];
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| 256 | if (max < symbol_value[j])
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| 257 | max = symbol_value[j];
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| 258 | *r++ = symbol_value[j];
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| 259 | *s++ = actionrow[j];
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| 260 | }
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| 261 | }
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| 262 | width[i] = max - min + 1;
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| 263 | }
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| 264 | if (reducecount > 0)
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| 265 | {
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| 266 | froms[nstates+i] = r = NEW2(reducecount, short);
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| 267 | tos[nstates+i] = s = NEW2(reducecount, short);
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| 268 | min = MAXSHORT;
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| 269 | max = 0;
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| 270 | for (j = 0; j < ntokens; ++j)
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| 271 | {
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| 272 | if (actionrow[ntokens+j])
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| 273 | {
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| 274 | if (min > symbol_value[j])
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| 275 | min = symbol_value[j];
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| 276 | if (max < symbol_value[j])
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| 277 | max = symbol_value[j];
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| 278 | *r++ = symbol_value[j];
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| 279 | *s++ = actionrow[ntokens+j] - 2;
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| 280 | }
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| 281 | }
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| 282 | width[nstates+i] = max - min + 1;
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| 283 | }
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| 284 | }
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| 285 | }
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| 286 | FREE(actionrow);
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| 287 | }
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| 288 |
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| 289 | goto_actions()
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| 290 | {
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| 291 | register int i, j, k;
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| 292 |
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| 293 | state_count = NEW2(nstates, short);
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| 294 |
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| 295 | k = default_goto(start_symbol + 1);
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| 296 | fprintf(output_file, "short %sdgoto[] = {%40d,", symbol_prefix, k);
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| 297 | save_column(start_symbol + 1, k);
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| 298 |
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| 299 | j = 10;
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| 300 | for (i = start_symbol + 2; i < nsyms; i++)
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| 301 | {
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| 302 | if (j >= 10)
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| 303 | {
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| 304 | if (!rflag) ++outline;
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| 305 | putc('\n', output_file);
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| 306 | j = 1;
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| 307 | }
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| 308 | else
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| 309 | ++j;
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| 310 |
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| 311 | k = default_goto(i);
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| 312 | fprintf(output_file, "%5d,", k);
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| 313 | save_column(i, k);
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| 314 | }
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| 315 |
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| 316 | if (!rflag) outline += 2;
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| 317 | fprintf(output_file, "\n};\n");
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| 318 | FREE(state_count);
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| 319 | }
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| 320 |
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| 321 | int
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| 322 | default_goto(symbol)
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| 323 | int symbol;
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| 324 | {
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| 325 | register int i;
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| 326 | register int m;
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| 327 | register int n;
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| 328 | register int default_state;
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| 329 | register int max;
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| 330 |
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| 331 | m = goto_map[symbol];
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| 332 | n = goto_map[symbol + 1];
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| 333 |
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| 334 | if (m == n) return (0);
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| 335 |
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| 336 | for (i = 0; i < nstates; i++)
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| 337 | state_count[i] = 0;
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| 338 |
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| 339 | for (i = m; i < n; i++)
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| 340 | state_count[to_state[i]]++;
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| 341 |
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| 342 | max = 0;
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| 343 | default_state = 0;
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| 344 | for (i = 0; i < nstates; i++)
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| 345 | {
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| 346 | if (state_count[i] > max)
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| 347 | {
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| 348 | max = state_count[i];
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| 349 | default_state = i;
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| 350 | }
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| 351 | }
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| 352 |
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| 353 | return (default_state);
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| 354 | }
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| 355 |
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| 356 |
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| 357 |
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| 358 | save_column(symbol, default_state)
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| 359 | int symbol;
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| 360 | int default_state;
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| 361 | {
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| 362 | register int i;
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| 363 | register int m;
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| 364 | register int n;
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| 365 | register short *sp;
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| 366 | register short *sp1;
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| 367 | register short *sp2;
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| 368 | register int count;
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| 369 | register int symno;
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| 370 |
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| 371 | m = goto_map[symbol];
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| 372 | n = goto_map[symbol + 1];
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| 373 |
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| 374 | count = 0;
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| 375 | for (i = m; i < n; i++)
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| 376 | {
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| 377 | if (to_state[i] != default_state)
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| 378 | ++count;
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| 379 | }
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| 380 | if (count == 0) return;
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| 381 |
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| 382 | symno = symbol_value[symbol] + 2*nstates;
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| 383 |
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| 384 | froms[symno] = sp1 = sp = NEW2(count, short);
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| 385 | tos[symno] = sp2 = NEW2(count, short);
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| 386 |
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| 387 | for (i = m; i < n; i++)
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| 388 | {
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| 389 | if (to_state[i] != default_state)
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| 390 | {
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| 391 | *sp1++ = from_state[i];
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| 392 | *sp2++ = to_state[i];
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| 393 | }
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| 394 | }
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| 395 |
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| 396 | tally[symno] = count;
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| 397 | width[symno] = sp1[-1] - sp[0] + 1;
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| 398 | }
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| 399 |
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| 400 | sort_actions()
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| 401 | {
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| 402 | register int i;
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| 403 | register int j;
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| 404 | register int k;
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| 405 | register int t;
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| 406 | register int w;
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| 407 |
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| 408 | order = NEW2(nvectors, short);
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| 409 | nentries = 0;
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| 410 |
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| 411 | for (i = 0; i < nvectors; i++)
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| 412 | {
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| 413 | if (tally[i] > 0)
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| 414 | {
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| 415 | t = tally[i];
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| 416 | w = width[i];
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| 417 | j = nentries - 1;
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| 418 |
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| 419 | while (j >= 0 && (width[order[j]] < w))
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| 420 | j--;
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| 421 |
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| 422 | while (j >= 0 && (width[order[j]] == w) && (tally[order[j]] < t))
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| 423 | j--;
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| 424 |
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| 425 | for (k = nentries - 1; k > j; k--)
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| 426 | order[k + 1] = order[k];
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| 427 |
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| 428 | order[j + 1] = i;
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| 429 | nentries++;
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| 430 | }
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| 431 | }
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| 432 | }
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| 433 |
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| 434 |
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| 435 | pack_table()
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| 436 | {
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| 437 | register int i;
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| 438 | register int place;
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| 439 | register int state;
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| 440 |
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| 441 | base = NEW2(nvectors, short);
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| 442 | pos = NEW2(nentries, short);
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| 443 |
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| 444 | maxtable = BITS_PER_WORD == 16 ? 400 : 1000;
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| 445 | table = NEW2(maxtable, short);
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| 446 | check = NEW2(maxtable, short);
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| 447 |
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| 448 | lowzero = 0;
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| 449 | high = 0;
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| 450 |
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| 451 | for (i = 0; i < maxtable; i++)
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| 452 | check[i] = -1;
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| 453 |
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| 454 | for (i = 0; i < nentries; i++)
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| 455 | {
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| 456 | state = matching_vector(i);
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| 457 |
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| 458 | if (state < 0)
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| 459 | place = pack_vector(i);
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| 460 | else
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| 461 | place = base[state];
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| 462 |
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| 463 | pos[i] = place;
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| 464 | base[order[i]] = place;
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| 465 | }
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| 466 |
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| 467 | for (i = 0; i < nvectors; i++)
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| 468 | {
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| 469 | if (froms[i])
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| 470 | FREE(froms[i]);
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| 471 | if (tos[i])
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| 472 | FREE(tos[i]);
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| 473 | }
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| 474 |
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| 475 | FREE(froms);
|
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| 476 | FREE(tos);
|
---|
| 477 | FREE(pos);
|
---|
| 478 | }
|
---|
| 479 |
|
---|
| 480 |
|
---|
| 481 | /* The function matching_vector determines if the vector specified by */
|
---|
| 482 | /* the input parameter matches a previously considered vector. The */
|
---|
| 483 | /* test at the start of the function checks if the vector represents */
|
---|
| 484 | /* a row of shifts over terminal symbols or a row of reductions, or a */
|
---|
| 485 | /* column of shifts over a nonterminal symbol. Berkeley Yacc does not */
|
---|
| 486 | /* check if a column of shifts over a nonterminal symbols matches a */
|
---|
| 487 | /* previously considered vector. Because of the nature of LR parsing */
|
---|
| 488 | /* tables, no two columns can match. Therefore, the only possible */
|
---|
| 489 | /* match would be between a row and a column. Such matches are */
|
---|
| 490 | /* unlikely. Therefore, to save time, no attempt is made to see if a */
|
---|
| 491 | /* column matches a previously considered vector. */
|
---|
| 492 | /* */
|
---|
| 493 | /* Matching_vector is poorly designed. The test could easily be made */
|
---|
| 494 | /* faster. Also, it depends on the vectors being in a specific */
|
---|
| 495 | /* order. */
|
---|
| 496 |
|
---|
| 497 | int
|
---|
| 498 | matching_vector(vector)
|
---|
| 499 | int vector;
|
---|
| 500 | {
|
---|
| 501 | register int i;
|
---|
| 502 | register int j;
|
---|
| 503 | register int k;
|
---|
| 504 | register int t;
|
---|
| 505 | register int w;
|
---|
| 506 | register int match;
|
---|
| 507 | register int prev;
|
---|
| 508 |
|
---|
| 509 | i = order[vector];
|
---|
| 510 | if (i >= 2*nstates)
|
---|
| 511 | return (-1);
|
---|
| 512 |
|
---|
| 513 | t = tally[i];
|
---|
| 514 | w = width[i];
|
---|
| 515 |
|
---|
| 516 | for (prev = vector - 1; prev >= 0; prev--)
|
---|
| 517 | {
|
---|
| 518 | j = order[prev];
|
---|
| 519 | if (width[j] != w || tally[j] != t)
|
---|
| 520 | return (-1);
|
---|
| 521 |
|
---|
| 522 | match = 1;
|
---|
| 523 | for (k = 0; match && k < t; k++)
|
---|
| 524 | {
|
---|
| 525 | if (tos[j][k] != tos[i][k] || froms[j][k] != froms[i][k])
|
---|
| 526 | match = 0;
|
---|
| 527 | }
|
---|
| 528 |
|
---|
| 529 | if (match)
|
---|
| 530 | return (j);
|
---|
| 531 | }
|
---|
| 532 |
|
---|
| 533 | return (-1);
|
---|
| 534 | }
|
---|
| 535 |
|
---|
| 536 |
|
---|
| 537 |
|
---|
| 538 | int
|
---|
| 539 | pack_vector(vector)
|
---|
| 540 | int vector;
|
---|
| 541 | {
|
---|
| 542 | register int i, j, k, l;
|
---|
| 543 | register int t;
|
---|
| 544 | register int loc;
|
---|
| 545 | register int ok;
|
---|
| 546 | register short *from;
|
---|
| 547 | register short *to;
|
---|
| 548 | int newmax;
|
---|
| 549 |
|
---|
| 550 | i = order[vector];
|
---|
| 551 | t = tally[i];
|
---|
| 552 | assert(t);
|
---|
| 553 |
|
---|
| 554 | from = froms[i];
|
---|
| 555 | to = tos[i];
|
---|
| 556 |
|
---|
| 557 | j = lowzero - from[0];
|
---|
| 558 | for (k = 1; k < t; ++k)
|
---|
| 559 | if (lowzero - from[k] > j)
|
---|
| 560 | j = lowzero - from[k];
|
---|
| 561 | for (;; ++j)
|
---|
| 562 | {
|
---|
| 563 | if (j == 0)
|
---|
| 564 | continue;
|
---|
| 565 | ok = 1;
|
---|
| 566 | for (k = 0; ok && k < t; k++)
|
---|
| 567 | {
|
---|
| 568 | loc = j + from[k];
|
---|
| 569 | if (loc >= maxtable)
|
---|
| 570 | {
|
---|
| 571 | if (loc >= MAXTABLE)
|
---|
| 572 | fatal("maximum table size exceeded");
|
---|
| 573 |
|
---|
| 574 | newmax = maxtable;
|
---|
| 575 | do { newmax += 200; } while (newmax <= loc);
|
---|
| 576 | table = (short *) REALLOC(table, newmax*sizeof(short));
|
---|
| 577 | if (table == 0) no_space();
|
---|
| 578 | check = (short *) REALLOC(check, newmax*sizeof(short));
|
---|
| 579 | if (check == 0) no_space();
|
---|
| 580 | for (l = maxtable; l < newmax; ++l)
|
---|
| 581 | {
|
---|
| 582 | table[l] = 0;
|
---|
| 583 | check[l] = -1;
|
---|
| 584 | }
|
---|
| 585 | maxtable = newmax;
|
---|
| 586 | }
|
---|
| 587 |
|
---|
| 588 | if (check[loc] != -1)
|
---|
| 589 | ok = 0;
|
---|
| 590 | }
|
---|
| 591 | for (k = 0; ok && k < vector; k++)
|
---|
| 592 | {
|
---|
| 593 | if (pos[k] == j)
|
---|
| 594 | ok = 0;
|
---|
| 595 | }
|
---|
| 596 | if (ok)
|
---|
| 597 | {
|
---|
| 598 | for (k = 0; k < t; k++)
|
---|
| 599 | {
|
---|
| 600 | loc = j + from[k];
|
---|
| 601 | table[loc] = to[k];
|
---|
| 602 | check[loc] = from[k];
|
---|
| 603 | if (loc > high) high = loc;
|
---|
| 604 | }
|
---|
| 605 |
|
---|
| 606 | while (check[lowzero] != -1)
|
---|
| 607 | ++lowzero;
|
---|
| 608 |
|
---|
| 609 | return (j);
|
---|
| 610 | }
|
---|
| 611 | }
|
---|
| 612 | }
|
---|
| 613 |
|
---|
| 614 |
|
---|
| 615 |
|
---|
| 616 | output_base()
|
---|
| 617 | {
|
---|
| 618 | register int i, j;
|
---|
| 619 |
|
---|
| 620 | fprintf(output_file, "short %ssindex[] = {%39d,", symbol_prefix, base[0]);
|
---|
| 621 |
|
---|
| 622 | j = 10;
|
---|
| 623 | for (i = 1; i < nstates; i++)
|
---|
| 624 | {
|
---|
| 625 | if (j >= 10)
|
---|
| 626 | {
|
---|
| 627 | if (!rflag) ++outline;
|
---|
| 628 | putc('\n', output_file);
|
---|
| 629 | j = 1;
|
---|
| 630 | }
|
---|
| 631 | else
|
---|
| 632 | ++j;
|
---|
| 633 |
|
---|
| 634 | fprintf(output_file, "%5d,", base[i]);
|
---|
| 635 | }
|
---|
| 636 |
|
---|
| 637 | if (!rflag) outline += 2;
|
---|
| 638 | fprintf(output_file, "\n};\nshort %srindex[] = {%39d,", symbol_prefix,
|
---|
| 639 | base[nstates]);
|
---|
| 640 |
|
---|
| 641 | j = 10;
|
---|
| 642 | for (i = nstates + 1; i < 2*nstates; i++)
|
---|
| 643 | {
|
---|
| 644 | if (j >= 10)
|
---|
| 645 | {
|
---|
| 646 | if (!rflag) ++outline;
|
---|
| 647 | putc('\n', output_file);
|
---|
| 648 | j = 1;
|
---|
| 649 | }
|
---|
| 650 | else
|
---|
| 651 | ++j;
|
---|
| 652 |
|
---|
| 653 | fprintf(output_file, "%5d,", base[i]);
|
---|
| 654 | }
|
---|
| 655 |
|
---|
| 656 | if (!rflag) outline += 2;
|
---|
| 657 | fprintf(output_file, "\n};\nshort %sgindex[] = {%39d,", symbol_prefix,
|
---|
| 658 | base[2*nstates]);
|
---|
| 659 |
|
---|
| 660 | j = 10;
|
---|
| 661 | for (i = 2*nstates + 1; i < nvectors - 1; i++)
|
---|
| 662 | {
|
---|
| 663 | if (j >= 10)
|
---|
| 664 | {
|
---|
| 665 | if (!rflag) ++outline;
|
---|
| 666 | putc('\n', output_file);
|
---|
| 667 | j = 1;
|
---|
| 668 | }
|
---|
| 669 | else
|
---|
| 670 | ++j;
|
---|
| 671 |
|
---|
| 672 | fprintf(output_file, "%5d,", base[i]);
|
---|
| 673 | }
|
---|
| 674 |
|
---|
| 675 | if (!rflag) outline += 2;
|
---|
| 676 | fprintf(output_file, "\n};\n");
|
---|
| 677 | FREE(base);
|
---|
| 678 | }
|
---|
| 679 |
|
---|
| 680 |
|
---|
| 681 |
|
---|
| 682 | output_table()
|
---|
| 683 | {
|
---|
| 684 | register int i;
|
---|
| 685 | register int j;
|
---|
| 686 |
|
---|
| 687 | ++outline;
|
---|
| 688 | fprintf(code_file, "#define YYTABLESIZE %d\n", high);
|
---|
| 689 | fprintf(output_file, "short %stable[] = {%40d,", symbol_prefix,
|
---|
| 690 | table[0]);
|
---|
| 691 |
|
---|
| 692 | j = 10;
|
---|
| 693 | for (i = 1; i <= high; i++)
|
---|
| 694 | {
|
---|
| 695 | if (j >= 10)
|
---|
| 696 | {
|
---|
| 697 | if (!rflag) ++outline;
|
---|
| 698 | putc('\n', output_file);
|
---|
| 699 | j = 1;
|
---|
| 700 | }
|
---|
| 701 | else
|
---|
| 702 | ++j;
|
---|
| 703 |
|
---|
| 704 | fprintf(output_file, "%5d,", table[i]);
|
---|
| 705 | }
|
---|
| 706 |
|
---|
| 707 | if (!rflag) outline += 2;
|
---|
| 708 | fprintf(output_file, "\n};\n");
|
---|
| 709 | FREE(table);
|
---|
| 710 | }
|
---|
| 711 |
|
---|
| 712 |
|
---|
| 713 |
|
---|
| 714 | output_check()
|
---|
| 715 | {
|
---|
| 716 | register int i;
|
---|
| 717 | register int j;
|
---|
| 718 |
|
---|
| 719 | fprintf(output_file, "short %scheck[] = {%40d,", symbol_prefix,
|
---|
| 720 | check[0]);
|
---|
| 721 |
|
---|
| 722 | j = 10;
|
---|
| 723 | for (i = 1; i <= high; i++)
|
---|
| 724 | {
|
---|
| 725 | if (j >= 10)
|
---|
| 726 | {
|
---|
| 727 | if (!rflag) ++outline;
|
---|
| 728 | putc('\n', output_file);
|
---|
| 729 | j = 1;
|
---|
| 730 | }
|
---|
| 731 | else
|
---|
| 732 | ++j;
|
---|
| 733 |
|
---|
| 734 | fprintf(output_file, "%5d,", check[i]);
|
---|
| 735 | }
|
---|
| 736 |
|
---|
| 737 | if (!rflag) outline += 2;
|
---|
| 738 | fprintf(output_file, "\n};\n");
|
---|
| 739 | FREE(check);
|
---|
| 740 | }
|
---|
| 741 |
|
---|
| 742 |
|
---|
| 743 | int
|
---|
| 744 | is_C_identifier(name)
|
---|
| 745 | char *name;
|
---|
| 746 | {
|
---|
| 747 | register char *s;
|
---|
| 748 | register int c;
|
---|
| 749 |
|
---|
| 750 | s = name;
|
---|
| 751 | c = *s;
|
---|
| 752 | if (c == '"')
|
---|
| 753 | {
|
---|
| 754 | c = *++s;
|
---|
| 755 | if (!isalpha(c) && c != '_' && c != '$')
|
---|
| 756 | return (0);
|
---|
| 757 | while ((c = *++s) != '"')
|
---|
| 758 | {
|
---|
| 759 | if (!isalnum(c) && c != '_' && c != '$')
|
---|
| 760 | return (0);
|
---|
| 761 | }
|
---|
| 762 | return (1);
|
---|
| 763 | }
|
---|
| 764 |
|
---|
| 765 | if (!isalpha(c) && c != '_' && c != '$')
|
---|
| 766 | return (0);
|
---|
| 767 | while (c = *++s)
|
---|
| 768 | {
|
---|
| 769 | if (!isalnum(c) && c != '_' && c != '$')
|
---|
| 770 | return (0);
|
---|
| 771 | }
|
---|
| 772 | return (1);
|
---|
| 773 | }
|
---|
| 774 |
|
---|
| 775 |
|
---|
| 776 | output_defines()
|
---|
| 777 | {
|
---|
| 778 | register int c, i;
|
---|
| 779 | register char *s;
|
---|
| 780 |
|
---|
| 781 | for (i = 2; i < ntokens; ++i)
|
---|
| 782 | {
|
---|
| 783 | s = symbol_name[i];
|
---|
| 784 | if (is_C_identifier(s))
|
---|
| 785 | {
|
---|
| 786 | fprintf(code_file, "#define ");
|
---|
| 787 | if (dflag) fprintf(defines_file, "#define ");
|
---|
| 788 | c = *s;
|
---|
| 789 | if (c == '"')
|
---|
| 790 | {
|
---|
| 791 | while ((c = *++s) != '"')
|
---|
| 792 | {
|
---|
| 793 | putc(c, code_file);
|
---|
| 794 | if (dflag) putc(c, defines_file);
|
---|
| 795 | }
|
---|
| 796 | }
|
---|
| 797 | else
|
---|
| 798 | {
|
---|
| 799 | do
|
---|
| 800 | {
|
---|
| 801 | putc(c, code_file);
|
---|
| 802 | if (dflag) putc(c, defines_file);
|
---|
| 803 | }
|
---|
| 804 | while (c = *++s);
|
---|
| 805 | }
|
---|
| 806 | ++outline;
|
---|
| 807 | fprintf(code_file, " %d\n", symbol_value[i]);
|
---|
| 808 | if (dflag) fprintf(defines_file, " %d\n", symbol_value[i]);
|
---|
| 809 | }
|
---|
| 810 | }
|
---|
| 811 |
|
---|
| 812 | ++outline;
|
---|
| 813 | fprintf(code_file, "#define YYERRCODE %d\n", symbol_value[1]);
|
---|
| 814 |
|
---|
| 815 | if (dflag && unionized)
|
---|
| 816 | {
|
---|
| 817 | fclose(union_file);
|
---|
| 818 | union_file = fopen(union_file_name, "r");
|
---|
| 819 | if (union_file == NULL) open_error(union_file_name);
|
---|
| 820 | while ((c = getc(union_file)) != EOF)
|
---|
| 821 | putc(c, defines_file);
|
---|
| 822 | fprintf(defines_file, " YYSTYPE;\nextern YYSTYPE %slval;\n",
|
---|
| 823 | symbol_prefix);
|
---|
| 824 | }
|
---|
| 825 | }
|
---|
| 826 |
|
---|
| 827 |
|
---|
| 828 | output_stored_text()
|
---|
| 829 | {
|
---|
| 830 | register int c;
|
---|
| 831 | register FILE *in, *out;
|
---|
| 832 |
|
---|
| 833 | fclose(text_file);
|
---|
| 834 | text_file = fopen(text_file_name, "r");
|
---|
| 835 | if (text_file == NULL)
|
---|
| 836 | open_error(text_file_name);
|
---|
| 837 | in = text_file;
|
---|
| 838 | if ((c = getc(in)) == EOF)
|
---|
| 839 | return;
|
---|
| 840 | out = code_file;
|
---|
| 841 | if (c == '\n')
|
---|
| 842 | ++outline;
|
---|
| 843 | putc(c, out);
|
---|
| 844 | while ((c = getc(in)) != EOF)
|
---|
| 845 | {
|
---|
| 846 | if (c == '\n')
|
---|
| 847 | ++outline;
|
---|
| 848 | putc(c, out);
|
---|
| 849 | }
|
---|
| 850 | if (!lflag)
|
---|
| 851 | fprintf(out, line_format, ++outline + 1, code_file_name);
|
---|
| 852 | }
|
---|
| 853 |
|
---|
| 854 |
|
---|
| 855 | output_debug()
|
---|
| 856 | {
|
---|
| 857 | register int i, j, k, max;
|
---|
| 858 | char **symnam, *s;
|
---|
| 859 |
|
---|
| 860 | ++outline;
|
---|
| 861 | fprintf(code_file, "#define YYFINAL %d\n", final_state);
|
---|
| 862 | outline += 3;
|
---|
| 863 | fprintf(code_file, "#ifndef YYDEBUG\n#define YYDEBUG %d\n#endif\n",
|
---|
| 864 | tflag);
|
---|
| 865 | if (rflag)
|
---|
| 866 | fprintf(output_file, "#ifndef YYDEBUG\n#define YYDEBUG %d\n#endif\n",
|
---|
| 867 | tflag);
|
---|
| 868 |
|
---|
| 869 | max = 0;
|
---|
| 870 | for (i = 2; i < ntokens; ++i)
|
---|
| 871 | if (symbol_value[i] > max)
|
---|
| 872 | max = symbol_value[i];
|
---|
| 873 | ++outline;
|
---|
| 874 | fprintf(code_file, "#define YYMAXTOKEN %d\n", max);
|
---|
| 875 |
|
---|
| 876 | symnam = (char **) MALLOC((max+1)*sizeof(char *));
|
---|
| 877 | if (symnam == 0) no_space();
|
---|
| 878 |
|
---|
| 879 | /* Note that it is not necessary to initialize the element */
|
---|
| 880 | /* symnam[max]. */
|
---|
| 881 | for (i = 0; i < max; ++i)
|
---|
| 882 | symnam[i] = 0;
|
---|
| 883 | for (i = ntokens - 1; i >= 2; --i)
|
---|
| 884 | symnam[symbol_value[i]] = symbol_name[i];
|
---|
| 885 | symnam[0] = "end-of-file";
|
---|
| 886 |
|
---|
| 887 | if (!rflag) ++outline;
|
---|
| 888 | fprintf(output_file, "#if YYDEBUG\nchar *%sname[] = {", symbol_prefix);
|
---|
| 889 | j = 80;
|
---|
| 890 | for (i = 0; i <= max; ++i)
|
---|
| 891 | {
|
---|
| 892 | if (s = symnam[i])
|
---|
| 893 | {
|
---|
| 894 | if (s[0] == '"')
|
---|
| 895 | {
|
---|
| 896 | k = 7;
|
---|
| 897 | while (*++s != '"')
|
---|
| 898 | {
|
---|
| 899 | ++k;
|
---|
| 900 | if (*s == '\\')
|
---|
| 901 | {
|
---|
| 902 | k += 2;
|
---|
| 903 | if (*++s == '\\')
|
---|
| 904 | ++k;
|
---|
| 905 | }
|
---|
| 906 | }
|
---|
| 907 | j += k;
|
---|
| 908 | if (j > 80)
|
---|
| 909 | {
|
---|
| 910 | if (!rflag) ++outline;
|
---|
| 911 | putc('\n', output_file);
|
---|
| 912 | j = k;
|
---|
| 913 | }
|
---|
| 914 | fprintf(output_file, "\"\\\"");
|
---|
| 915 | s = symnam[i];
|
---|
| 916 | while (*++s != '"')
|
---|
| 917 | {
|
---|
| 918 | if (*s == '\\')
|
---|
| 919 | {
|
---|
| 920 | fprintf(output_file, "\\\\");
|
---|
| 921 | if (*++s == '\\')
|
---|
| 922 | fprintf(output_file, "\\\\");
|
---|
| 923 | else
|
---|
| 924 | putc(*s, output_file);
|
---|
| 925 | }
|
---|
| 926 | else
|
---|
| 927 | putc(*s, output_file);
|
---|
| 928 | }
|
---|
| 929 | fprintf(output_file, "\\\"\",");
|
---|
| 930 | }
|
---|
| 931 | else if (s[0] == '\'')
|
---|
| 932 | {
|
---|
| 933 | if (s[1] == '"')
|
---|
| 934 | {
|
---|
| 935 | j += 7;
|
---|
| 936 | if (j > 80)
|
---|
| 937 | {
|
---|
| 938 | if (!rflag) ++outline;
|
---|
| 939 | putc('\n', output_file);
|
---|
| 940 | j = 7;
|
---|
| 941 | }
|
---|
| 942 | fprintf(output_file, "\"'\\\"'\",");
|
---|
| 943 | }
|
---|
| 944 | else
|
---|
| 945 | {
|
---|
| 946 | k = 5;
|
---|
| 947 | while (*++s != '\'')
|
---|
| 948 | {
|
---|
| 949 | ++k;
|
---|
| 950 | if (*s == '\\')
|
---|
| 951 | {
|
---|
| 952 | k += 2;
|
---|
| 953 | if (*++s == '\\')
|
---|
| 954 | ++k;
|
---|
| 955 | }
|
---|
| 956 | }
|
---|
| 957 | j += k;
|
---|
| 958 | if (j > 80)
|
---|
| 959 | {
|
---|
| 960 | if (!rflag) ++outline;
|
---|
| 961 | putc('\n', output_file);
|
---|
| 962 | j = k;
|
---|
| 963 | }
|
---|
| 964 | fprintf(output_file, "\"'");
|
---|
| 965 | s = symnam[i];
|
---|
| 966 | while (*++s != '\'')
|
---|
| 967 | {
|
---|
| 968 | if (*s == '\\')
|
---|
| 969 | {
|
---|
| 970 | fprintf(output_file, "\\\\");
|
---|
| 971 | if (*++s == '\\')
|
---|
| 972 | fprintf(output_file, "\\\\");
|
---|
| 973 | else
|
---|
| 974 | putc(*s, output_file);
|
---|
| 975 | }
|
---|
| 976 | else
|
---|
| 977 | putc(*s, output_file);
|
---|
| 978 | }
|
---|
| 979 | fprintf(output_file, "'\",");
|
---|
| 980 | }
|
---|
| 981 | }
|
---|
| 982 | else
|
---|
| 983 | {
|
---|
| 984 | k = strlen(s) + 3;
|
---|
| 985 | j += k;
|
---|
| 986 | if (j > 80)
|
---|
| 987 | {
|
---|
| 988 | if (!rflag) ++outline;
|
---|
| 989 | putc('\n', output_file);
|
---|
| 990 | j = k;
|
---|
| 991 | }
|
---|
| 992 | putc('"', output_file);
|
---|
| 993 | do { putc(*s, output_file); } while (*++s);
|
---|
| 994 | fprintf(output_file, "\",");
|
---|
| 995 | }
|
---|
| 996 | }
|
---|
| 997 | else
|
---|
| 998 | {
|
---|
| 999 | j += 2;
|
---|
| 1000 | if (j > 80)
|
---|
| 1001 | {
|
---|
| 1002 | if (!rflag) ++outline;
|
---|
| 1003 | putc('\n', output_file);
|
---|
| 1004 | j = 2;
|
---|
| 1005 | }
|
---|
| 1006 | fprintf(output_file, "0,");
|
---|
| 1007 | }
|
---|
| 1008 | }
|
---|
| 1009 | if (!rflag) outline += 2;
|
---|
| 1010 | fprintf(output_file, "\n};\n");
|
---|
| 1011 | FREE(symnam);
|
---|
| 1012 |
|
---|
| 1013 | if (!rflag) ++outline;
|
---|
| 1014 | fprintf(output_file, "char *%srule[] = {\n", symbol_prefix);
|
---|
| 1015 | for (i = 2; i < nrules; ++i)
|
---|
| 1016 | {
|
---|
| 1017 | fprintf(output_file, "\"%s :", symbol_name[rlhs[i]]);
|
---|
| 1018 | for (j = rrhs[i]; ritem[j] > 0; ++j)
|
---|
| 1019 | {
|
---|
| 1020 | s = symbol_name[ritem[j]];
|
---|
| 1021 | if (s[0] == '"')
|
---|
| 1022 | {
|
---|
| 1023 | fprintf(output_file, " \\\"");
|
---|
| 1024 | while (*++s != '"')
|
---|
| 1025 | {
|
---|
| 1026 | if (*s == '\\')
|
---|
| 1027 | {
|
---|
| 1028 | if (s[1] == '\\')
|
---|
| 1029 | fprintf(output_file, "\\\\\\\\");
|
---|
| 1030 | else
|
---|
| 1031 | fprintf(output_file, "\\\\%c", s[1]);
|
---|
| 1032 | ++s;
|
---|
| 1033 | }
|
---|
| 1034 | else
|
---|
| 1035 | putc(*s, output_file);
|
---|
| 1036 | }
|
---|
| 1037 | fprintf(output_file, "\\\"");
|
---|
| 1038 | }
|
---|
| 1039 | else if (s[0] == '\'')
|
---|
| 1040 | {
|
---|
| 1041 | if (s[1] == '"')
|
---|
| 1042 | fprintf(output_file, " '\\\"'");
|
---|
| 1043 | else if (s[1] == '\\')
|
---|
| 1044 | {
|
---|
| 1045 | if (s[2] == '\\')
|
---|
| 1046 | fprintf(output_file, " '\\\\\\\\");
|
---|
| 1047 | else
|
---|
| 1048 | fprintf(output_file, " '\\\\%c", s[2]);
|
---|
| 1049 | s += 2;
|
---|
| 1050 | while (*++s != '\'')
|
---|
| 1051 | putc(*s, output_file);
|
---|
| 1052 | putc('\'', output_file);
|
---|
| 1053 | }
|
---|
| 1054 | else
|
---|
| 1055 | fprintf(output_file, " '%c'", s[1]);
|
---|
| 1056 | }
|
---|
| 1057 | else
|
---|
| 1058 | fprintf(output_file, " %s", s);
|
---|
| 1059 | }
|
---|
| 1060 | if (!rflag) ++outline;
|
---|
| 1061 | fprintf(output_file, "\",\n");
|
---|
| 1062 | }
|
---|
| 1063 |
|
---|
| 1064 | if (!rflag) outline += 2;
|
---|
| 1065 | fprintf(output_file, "};\n#endif\n");
|
---|
| 1066 | }
|
---|
| 1067 |
|
---|
| 1068 |
|
---|
| 1069 | output_stype()
|
---|
| 1070 | {
|
---|
| 1071 | if (!unionized && ntags == 0)
|
---|
| 1072 | {
|
---|
| 1073 | outline += 3;
|
---|
| 1074 | fprintf(code_file, "#ifndef YYSTYPE\ntypedef int YYSTYPE;\n#endif\n");
|
---|
| 1075 | }
|
---|
| 1076 | }
|
---|
| 1077 |
|
---|
| 1078 |
|
---|
| 1079 | output_trailing_text()
|
---|
| 1080 | {
|
---|
| 1081 | register int c, last;
|
---|
| 1082 | register FILE *in, *out;
|
---|
| 1083 |
|
---|
| 1084 | if (line == 0)
|
---|
| 1085 | return;
|
---|
| 1086 |
|
---|
| 1087 | in = input_file;
|
---|
| 1088 | out = code_file;
|
---|
| 1089 | c = *cptr;
|
---|
| 1090 | if (c == '\n')
|
---|
| 1091 | {
|
---|
| 1092 | ++lineno;
|
---|
| 1093 | if ((c = getc(in)) == EOF)
|
---|
| 1094 | return;
|
---|
| 1095 | if (!lflag)
|
---|
| 1096 | {
|
---|
| 1097 | ++outline;
|
---|
| 1098 | fprintf(out, line_format, lineno, input_file_name);
|
---|
| 1099 | }
|
---|
| 1100 | if (c == '\n')
|
---|
| 1101 | ++outline;
|
---|
| 1102 | putc(c, out);
|
---|
| 1103 | last = c;
|
---|
| 1104 | }
|
---|
| 1105 | else
|
---|
| 1106 | {
|
---|
| 1107 | if (!lflag)
|
---|
| 1108 | {
|
---|
| 1109 | ++outline;
|
---|
| 1110 | fprintf(out, line_format, lineno, input_file_name);
|
---|
| 1111 | }
|
---|
| 1112 | do { putc(c, out); } while ((c = *++cptr) != '\n');
|
---|
| 1113 | ++outline;
|
---|
| 1114 | putc('\n', out);
|
---|
| 1115 | last = '\n';
|
---|
| 1116 | }
|
---|
| 1117 |
|
---|
| 1118 | while ((c = getc(in)) != EOF)
|
---|
| 1119 | {
|
---|
| 1120 | if (c == '\n')
|
---|
| 1121 | ++outline;
|
---|
| 1122 | putc(c, out);
|
---|
| 1123 | last = c;
|
---|
| 1124 | }
|
---|
| 1125 |
|
---|
| 1126 | if (last != '\n')
|
---|
| 1127 | {
|
---|
| 1128 | ++outline;
|
---|
| 1129 | putc('\n', out);
|
---|
| 1130 | }
|
---|
| 1131 | if (!lflag)
|
---|
| 1132 | fprintf(out, line_format, ++outline + 1, code_file_name);
|
---|
| 1133 | }
|
---|
| 1134 |
|
---|
| 1135 |
|
---|
| 1136 | output_semantic_actions()
|
---|
| 1137 | {
|
---|
| 1138 | register int c, last;
|
---|
| 1139 | register FILE *out;
|
---|
| 1140 |
|
---|
| 1141 | fclose(action_file);
|
---|
| 1142 | action_file = fopen(action_file_name, "r");
|
---|
| 1143 | if (action_file == NULL)
|
---|
| 1144 | open_error(action_file_name);
|
---|
| 1145 |
|
---|
| 1146 | if ((c = getc(action_file)) == EOF)
|
---|
| 1147 | return;
|
---|
| 1148 |
|
---|
| 1149 | out = code_file;
|
---|
| 1150 | last = c;
|
---|
| 1151 | if (c == '\n')
|
---|
| 1152 | ++outline;
|
---|
| 1153 | putc(c, out);
|
---|
| 1154 | while ((c = getc(action_file)) != EOF)
|
---|
| 1155 | {
|
---|
| 1156 | if (c == '\n')
|
---|
| 1157 | ++outline;
|
---|
| 1158 | putc(c, out);
|
---|
| 1159 | last = c;
|
---|
| 1160 | }
|
---|
| 1161 |
|
---|
| 1162 | if (last != '\n')
|
---|
| 1163 | {
|
---|
| 1164 | ++outline;
|
---|
| 1165 | putc('\n', out);
|
---|
| 1166 | }
|
---|
| 1167 |
|
---|
| 1168 | if (!lflag)
|
---|
| 1169 | fprintf(out, line_format, ++outline + 1, code_file_name);
|
---|
| 1170 | }
|
---|
| 1171 |
|
---|
| 1172 |
|
---|
| 1173 | free_itemsets()
|
---|
| 1174 | {
|
---|
| 1175 | register core *cp, *next;
|
---|
| 1176 |
|
---|
| 1177 | FREE(state_table);
|
---|
| 1178 | for (cp = first_state; cp; cp = next)
|
---|
| 1179 | {
|
---|
| 1180 | next = cp->next;
|
---|
| 1181 | FREE(cp);
|
---|
| 1182 | }
|
---|
| 1183 | }
|
---|
| 1184 |
|
---|
| 1185 |
|
---|
| 1186 | free_shifts()
|
---|
| 1187 | {
|
---|
| 1188 | register shifts *sp, *next;
|
---|
| 1189 |
|
---|
| 1190 | FREE(shift_table);
|
---|
| 1191 | for (sp = first_shift; sp; sp = next)
|
---|
| 1192 | {
|
---|
| 1193 | next = sp->next;
|
---|
| 1194 | FREE(sp);
|
---|
| 1195 | }
|
---|
| 1196 | }
|
---|
| 1197 |
|
---|
| 1198 |
|
---|
| 1199 |
|
---|
| 1200 | free_reductions()
|
---|
| 1201 | {
|
---|
| 1202 | register reductions *rp, *next;
|
---|
| 1203 |
|
---|
| 1204 | FREE(reduction_table);
|
---|
| 1205 | for (rp = first_reduction; rp; rp = next)
|
---|
| 1206 | {
|
---|
| 1207 | next = rp->next;
|
---|
| 1208 | FREE(rp);
|
---|
| 1209 | }
|
---|
| 1210 | }
|
---|