/* 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"); | |
} |