1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/* Print a bunch of C initializers that represent a grammar */
#include "pgenheaders.h"
#include "grammar.h"
/* Forward */
static void printarcs PROTO((int, dfa *, FILE *));
static void printstates PROTO((grammar *, FILE *));
static void printdfas PROTO((grammar *, FILE *));
static void printlabels PROTO((grammar *, FILE *));
void
printgrammar(g, fp)
grammar *g;
FILE *fp;
{
fprintf(fp, "#include \"pgenheaders.h\"\n");
fprintf(fp, "#include \"grammar.h\"\n");
printdfas(g, fp);
printlabels(g, fp);
fprintf(fp, "grammar gram = {\n");
fprintf(fp, "\t%d,\n", g->g_ndfas);
fprintf(fp, "\tdfas,\n");
fprintf(fp, "\t{%d, labels},\n", g->g_ll.ll_nlabels);
fprintf(fp, "\t%d\n", g->g_start);
fprintf(fp, "};\n");
}
void
printnonterminals(g, fp)
grammar *g;
FILE *fp;
{
dfa *d;
int i;
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(i, d, fp)
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, "\t{%d, %d},\n", a->a_lbl, a->a_arrow);
fprintf(fp, "};\n");
}
}
static void
printstates(g, fp)
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, "\t{%d, arcs_%d_%d},\n",
s->s_narcs, i, j);
fprintf(fp, "};\n");
}
}
static void
printdfas(g, fp)
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, "\t{%d, \"%s\", %d, %d, states_%d,\n",
d->d_type, d->d_name, d->d_initial, d->d_nstates, i);
fprintf(fp, "\t \"");
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(g, fp)
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, "\t{%d, 0},\n", l->lb_type);
else
fprintf(fp, "\t{%d, \"%s\"},\n",
l->lb_type, l->lb_str);
}
fprintf(fp, "};\n");
}
|
