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LGPrintStates.cpp
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#ifdef DFASTAR
#include "ComGlobal.h"
#include "LGPrintStates.h"
static
uchar range[256] = /* characters within a range. */
{
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0,
0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, 0,
0, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
};
void LGPrintStates::PrintStates (int type)
{
const char *type_of_sm, *optstr;
int c, t, s, n, A, action, R, i, first_n, count, last_n, a, b, opt;
switch (type)
{
case 1:
type_of_sm = "(for checking conflicts)";
opt = optn [LG_STATELIST];
for (i = 0; *LGOption[i].name != 0; i++) if (LGOption[i].numb == LG_STATELIST) break;
optstr = LGOption[i].name;
break;
case 2:
type_of_sm = "(final optimized one)";
opt = optn [LG_STATELISTOPT];
for (i = 0; *LGOption[i].name != 0; i++) if (LGOption[i].numb == LG_STATELISTOPT) break;
optstr = LGOption[i].name;
break;
default:
InternalError(7);
}
prt_sta ("\n///////////////////////////////////////////////////////////////////\n");
prt_sta ("//\n");
prt_sta ("// STATE MACHINE %s\n", type_of_sm);
prt_sta ("//\n");
if (!opt)
{
prt_sta ("\n'%s' option was not specified.\n", optstr);
return;
}
prt_sta ("// +=> Shift and goto.\n");
prt_sta ("// <= Reduce.\n\n");
for (s = 0; s < n_states; s++)
{
PRT_STA (s);
prt_sta ("\n");
if (optn[LG_TRANSITIONS])
{
c = 0;
count = 0;
first_n = 0;
last_n = 0;
a = tt_start[s];
b = tt_start[s+1];
if (tt_end != NULL) b = tt_end[s];
for (t = a; t < b; t++)
{
c++;
A = tt_action [t];
n = tt_symb [t];
if (range[n] > 0)
{
Inside: if (count == 0)
{
first_n = n;
action = A;
R = range[n];
count++;
}
else if (count > 0)
{
if (A == action && range[n] == R && n == last_n+1) count++;
else goto Out;
}
}
else
{
Out: if (count == 1)
{
P_SYMBOL (first_n);
prt_sta (" +=> %4d\n", action);
}
else if (count == 2)
{
P_SYMBOL (first_n);
prt_sta (" +=> %4d\n", action);
P_SYMBOL (last_n);
prt_sta (" +=> %4d\n", action);
}
else if (count > 2)
{
P_RANGE (first_n, last_n);
prt_sta (" +=> %4d\n", action);
}
R = 0;
count = 0;
if (range[n] > 0) goto Inside;
P_SYMBOL (n);
prt_sta (" +=> %4d\n", A);
}
last_n = n;
}
if (count == 1)
{
P_SYMBOL (first_n);
prt_sta (" +=> %4d\n", action);
}
else if (count == 2)
{
P_SYMBOL (first_n);
prt_sta (" +=> %4d\n", action);
P_SYMBOL (last_n);
prt_sta (" +=> %4d\n", action);
}
else if (count > 2)
{
P_RANGE (first_n, last_n);
prt_sta (" +=> %4d\n", action);
}
if (la_start != NULL)
{
a = la_start[s];
b = la_start[s+1];
if (la_end != NULL) b = la_end[s];
for (t = a; t < b; t++)
{
n = la_symb [t];
P_SYMBOL (n);
A = la_red [t];
prt_sta (" <= %4d\n", A);
// prt_sta (" <= %4d %3d %s\n", A, prod_len[A]-1, head_name[head_sym[A]]);
}
}
if (D_red != NULL && (A = D_red [s]) >= 0 && s != 0 && s != illegal_char_state)
{
c++;
P_SYMBOL (-32767);
prt_sta (" <= %4d\n", A);
// p_prod (A, -1, "", "\n");
}
else if (s != accept_state)
{
c++;
prt_sta (" (error)\n");
}
if (c) prt_sta ("\n");
c = 0;
a = ntt_start[s];
b = ntt_start[s+1];
if (ntt_end != NULL) b = ntt_end[s];
for (t = a; t < b; t++)
{
A = ntt_action [t];
if (A == 0) continue;
c++;
n = ntt_symb [t];
P_SYMBOL (-n);
if (A >= 0) prt_sta (" +=> %4d\n", A);
else prt_sta (" +<= %4d %3d %s\n", -A, prod_len[-A]-1, head_name[head_sym[-A]]);
}
if (c) prt_sta ("\n");
}
}
prt_sta ("///////////////////////////////////////////////////////////////////");
if (n_states > 10 ) prt_sta ("/");
if (n_states > 100 ) prt_sta ("/");
if (n_states > 1000) prt_sta ("/");
prt_sta ("\n\n");
}
void LGPrintStates::P_SYMBOL (int s)
{
int L;
if (s == -32767)
{
prt_sta (" (default) ");
L = 10;
}
else
{
prt_sta (" ");
L = p_sym (s, " ");
}
L = max_headl-L+1;
if (L < 0) L = 0;
spaces [L] = 0;
prt_sta ("%s", spaces);
spaces [L] = ' ';
}
void LGPrintStates::P_RANGE (int s1, int s2)
{
int L;
prt_sta (" ");
L = p_sym (s1, "..");
L += p_sym (s2, "");
L = max_headl-L+1;
if (L < 0) L = 0;
spaces [L] = 0;
prt_sta ("%s", spaces);
spaces [L] = ' ';
}
void LGPrintStates::PRT_STA (int s)
{
int k, i, f, p, n, a, b, d_red;
prt_sta ("///////////////////////////// STATE %d /////////////////////////////\n//\n", s);
n = 0;
d_red = D_red[s];
a = f_kernel[s];
if (l_kernel != NULL) b = l_kernel[s];
else b = f_kernel[s+1];
for (k = a; k < b; k++)
{
n++;
i = kernel [k];
if (item[i].symb != -32767)
{
prt_sta ("// * ");
p_prod (item[i].prod, item[i].dot, "", "\n");
}
}
a = f_final[s];
if (l_final != NULL) b = l_final[s];
else b = f_final[s+1];
for (f = a; f < b; f++)
{
n++;
p = final [f];
if (p >= 0)
{
if (p == d_red) d_red = 0;
if (p >= n_oprods) prt_sta ("// . ");
else prt_sta ("// * ");
p_prod (p, -1, "", "\n");
}
}
if (n == 0 && s == n_states-1) // Must be illegal_char state.
{
prt_sta ("// * Illegal character state.\n");
}
if (d_red > 0)
{
prt_sta ("// * ");
p_prod (d_red, -1, "", "\n");
}
}
void LGPrintStates::p_prod (int p, int dot, char *before, char* after)
{
int t, u, d, h;
h = head_sym[p];
if (h < 0)
prt_sta ("%s%4d [%d] -> ", before, p, h);
else prt_sta ("%s%4d %s -> ", before, p, head_name [h]);
t = f_tail [p];
u = l_tail [p];
d = t + dot;
if (dot == -1) d = u;
for (;;)
{
if (t == d) prt_sta (". ");
if (t >= u) break;
p_sym (tail [t], " ");
t++;
}
prt_sta ("%s", after);
}
int LGPrintStates::p_sym (int s, char *sp)
{
char *p;
if (s >= 0) /* Terminal symbol? */
p = term_name[s];
else /* Nonterminal symbol? */
p = head_name[-s];
prt_sta ("%s%s", p, sp);
return (strlen(p) + strlen(sp));
}
#endif
/*----------------------------------------------------------------*/