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113 lines
2.5 KiB
113 lines
2.5 KiB
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/* Print a bunch of C initializers that represent a grammar */ |
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#include "pgenheaders.h" |
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#include "grammar.h" |
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/* Forward */ |
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static void printarcs(int, dfa *, FILE *); |
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static void printstates(grammar *, FILE *); |
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static void printdfas(grammar *, FILE *); |
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static void printlabels(grammar *, FILE *); |
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void |
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printgrammar(grammar *g, FILE *fp) |
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{ |
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fprintf(fp, "#include \"pgenheaders.h\"\n"); |
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fprintf(fp, "#include \"grammar.h\"\n"); |
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printdfas(g, fp); |
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printlabels(g, fp); |
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fprintf(fp, "grammar _PyParser_Grammar = {\n"); |
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fprintf(fp, "\t%d,\n", g->g_ndfas); |
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fprintf(fp, "\tdfas,\n"); |
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fprintf(fp, "\t{%d, labels},\n", g->g_ll.ll_nlabels); |
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fprintf(fp, "\t%d\n", g->g_start); |
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fprintf(fp, "};\n"); |
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} |
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void |
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printnonterminals(grammar *g, FILE *fp) |
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{ |
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dfa *d; |
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int i; |
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d = g->g_dfa; |
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for (i = g->g_ndfas; --i >= 0; d++) |
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fprintf(fp, "#define %s %d\n", d->d_name, d->d_type); |
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} |
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static void |
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printarcs(int i, dfa *d, FILE *fp) |
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{ |
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arc *a; |
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state *s; |
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int j, k; |
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s = d->d_state; |
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for (j = 0; j < d->d_nstates; j++, s++) { |
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fprintf(fp, "static arc arcs_%d_%d[%d] = {\n", |
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i, j, s->s_narcs); |
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a = s->s_arc; |
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for (k = 0; k < s->s_narcs; k++, a++) |
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fprintf(fp, "\t{%d, %d},\n", a->a_lbl, a->a_arrow); |
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fprintf(fp, "};\n"); |
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} |
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} |
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static void |
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printstates(grammar *g, FILE *fp) |
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{ |
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state *s; |
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dfa *d; |
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int i, j; |
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d = g->g_dfa; |
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for (i = 0; i < g->g_ndfas; i++, d++) { |
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printarcs(i, d, fp); |
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fprintf(fp, "static state states_%d[%d] = {\n", |
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i, d->d_nstates); |
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s = d->d_state; |
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for (j = 0; j < d->d_nstates; j++, s++) |
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fprintf(fp, "\t{%d, arcs_%d_%d},\n", |
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s->s_narcs, i, j); |
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fprintf(fp, "};\n"); |
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} |
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} |
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static void |
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printdfas(grammar *g, FILE *fp) |
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{ |
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dfa *d; |
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int i, j; |
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printstates(g, fp); |
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fprintf(fp, "static dfa dfas[%d] = {\n", g->g_ndfas); |
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d = g->g_dfa; |
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for (i = 0; i < g->g_ndfas; i++, d++) { |
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fprintf(fp, "\t{%d, \"%s\", %d, %d, states_%d,\n", |
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d->d_type, d->d_name, d->d_initial, d->d_nstates, i); |
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fprintf(fp, "\t \""); |
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for (j = 0; j < NBYTES(g->g_ll.ll_nlabels); j++) |
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fprintf(fp, "\\%03o", d->d_first[j] & 0xff); |
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fprintf(fp, "\"},\n"); |
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} |
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fprintf(fp, "};\n"); |
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} |
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static void |
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printlabels(grammar *g, FILE *fp) |
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{ |
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label *l; |
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int i; |
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fprintf(fp, "static label labels[%d] = {\n", g->g_ll.ll_nlabels); |
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l = g->g_ll.ll_label; |
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for (i = g->g_ll.ll_nlabels; --i >= 0; l++) { |
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if (l->lb_str == NULL) |
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fprintf(fp, "\t{%d, 0},\n", l->lb_type); |
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else |
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fprintf(fp, "\t{%d, \"%s\"},\n", |
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l->lb_type, l->lb_str); |
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} |
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fprintf(fp, "};\n"); |
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}
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