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