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gg08.c
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gg08.c
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/*
This file is a part of the GLAMMAR source distribution
and therefore subjected to the copy notice below.
Copyright (C) 1989,2012 Eric Voss, eric337@yahoo.com
* file : compute properties
* deterministic rules
* empty
* left recursive rules
* which rules to (partly) memoize
*/
#include "gg1.h"
#include "gg2.h"
long det_count = 0, nondet_count = 0, memo_count = 0, recursive_count = 0;
long last_alt = true, memo_gain;
long rec_count = 0;
long adp_rule (long rule, long count);
void left_rec_rule (long rule);
long get_affix (long afx, long count);
void recursive_rule (long rule);
init_builtins ()
{
long rule, alt;
equal = get_builtin ("equal");
if (meta_uniq_flag)
*(REPR (equal)) = 'f';
notequal = get_builtin ("notequal");
if (meta_uniq_flag)
*(REPR (notequal)) = 'f';
endofsentence = get_builtin ("endofsentence");
evalmeta = get_builtin ("evalmeta");
explintersect = get_builtin ("explintersect_");
falseip = get_builtin ("falseip_");
getip = get_builtin ("getip_");
initmeta = get_builtin ("initmeta");
initmint = get_builtin ("initmint_");
intersect = get_builtin ("intersect_");
metaterminal = get_builtin ("metaterminal");
metaterminal2 = get_builtin ("metaterminal2_");
nestaralt = get_builtin ("nestaralt_");
nestarset = get_builtin ("nestarset");
detnestarset = get_builtin ("detnestarset");
detprefix = get_builtin ("detprefix");
detprefix2 = get_builtin ("detprefix2_");
equalsempty = get_builtin ("equalsempty");
nlcr = get_builtin ("nlcr");
pair = get_builtin ("pair");
repair = get_builtin ("repair");
resetinputptr = get_builtin ("resetinputptr_");
restoreip = get_builtin ("restoreip_");
setinputptrto = get_builtin ("setinputptrto_");
skip = get_builtin ("skip_");
tltraditional = get_builtin ("tltraditional_");
tltraditionalterm = get_builtin ("tltraditionalterm_");
transformlattice = get_builtin ("transformlattice_");
transformlatticeterm = get_builtin ("transformlatticeterm_");
unpair = get_builtin ("unpair");
where = get_builtin ("where");
getlist_ = get_builtin ("getlist_");
add_to = get_builtin ("addto");
assign = get_builtin ("assign");
meta_empty = get_meta_builtin ("empty");
}
get_builtin (repr)
register char *repr;
{
register long rule, rr;
for (rule = laststdpred; (rule != nil) && (!mystrcmp (REPR (rule), repr)); rule = BROTHER (rule));
if (rule == nil)
{
fprintf (stderr, "glammar: installation error: %s: not a builtin\n", repr);
exit (12);
}
for (rr = root; rr != laststdpred; rr = BROTHER (rr))
if (REPR (rule) == REPR (rr))
{
if (input_from_partlist)
fprintf (stderr, "In %s:\n", PART (rr));
fprintf (stderr, "line %ld: %s: already in use do not redefine\n", LINE ((rr)), FREPR (rr));
exit (12);
}
return rule;
}
get_meta_builtin (repr)
register char *repr;
{
register long rule, rr;
rr = nil;
for (rule = lastmetarule; rule != nil; rule = BROTHER (rule))
if (mystrcmp (REPR (rule), repr))
{
if (rr != nil)
{
if (input_from_partlist)
fprintf (stderr, "In %s:\n", PART (rr));
fprintf (stderr, "line %ld: %s: name already in use; do not redefine\n", LINE (rr), REPR (rr));
exit (12);
}
else
rr = rule;
}
if (rr == nil)
{
fprintf (stderr, "glammar: installation error: %s: not a meta builtin\n", repr);
exit (12);
}
return rr;
}
determ ()
{
long rule;
if (!lift_flag)
{
if (det_flag)
{
fprintf (stderr, "glammar: -d ignored because -f overrules\n");
det_flag = false;
}
fprintf (stderr, "glammar: builtins nondeterministc\n");
for (rule = root; rule != nil; rule = BROTHER (rule))
SET (rule, nondeterministic);
UNSET (evalmeta, nondeterministic);
UNSET (initmint, nondeterministic);
UNSET (initmeta, nondeterministic);
UNSET (pair, nondeterministic);
UNSET (init_one_star, nondeterministic);
SET (evalmeta, deterministic);
SET (initmint, deterministic);
SET (pair, deterministic);
SET (initmeta, deterministic);
SET (init_one_star, deterministic);
return;
}
/*
* builtins classification
* a:. ----- deterministic
* a:;a:. ----- deterministic if -d flag is on , else nondeterministic
* a:;a:;a:. ----- nondeterministic
*
*/
for (rule = laststdpred; rule != nil; rule = BROTHER (rule))
if (BROTHER (SON (rule)) == nil)
SET (rule, deterministic);
else if (BROTHER (BROTHER (SON (rule))) == nil)
if (det_flag)
SET (rule, deterministic);
else
SET (rule, nondeterministic);
else
SET (rule, nondeterministic);
compute_determ (root);
check_determ ();
if ((det_flag) && (nondet_count > 0))
{
exit (-1);
}
if ((MARKED (root, deterministic)) && (!det_flag))
{
if (verbose_flag)
fprintf (stderr, "glammar semantic compute: Grammar is deterministic.\n");
/* det_flag = true; */
}
if (verbose_flag)
fprintf (stderr, "glammar semantic compute: Deterministic: (%ld,%ld)\n", det_count, nondet_count);
}
check_determ ()
{
long alt, rule, again, over = 0, mem;
do
{
again = 0;
for (rule = root; rule != laststdpred; rule = BROTHER (rule))
if (MARKED (rule, deterministic))
for (alt = SON (rule); alt != nil; alt = BROTHER (alt))
for (mem = SON (alt); mem != nil; mem = BROTHER (mem))
if (NONTERMINAL (mem) && MARKED (DEF (mem), nondeterministic))
{
if (verbose_flag)
{
fprintf (stderr, "glammar: %s is nondeterministic.\n", FREPR (mem));
}
again += 1;
SET (rule, nondeterministic);
UNSET (rule, deterministic);
}
if (again > 0)
over += 1;
}
while (again > 0);
if (over > 2)
fprintf (stderr, "glammar semantic compute: deterministic: needed %ld re-computations\n", over);
}
compute_determ (rule)
long rule;
{
if (rule == laststdpred)
return;
compute_determ (BROTHER (rule));
if (determ_rule (rule))
{
SET (rule, deterministic);
det_count += 1;
}
}
determ_rule (rule)
long rule;
{
if (MARKED (rule, nondeterministic))
{
return false;
}
if (MARKED (rule, processing))
{
SET (rule, recursive);
return true;
}
if (MARKED (rule, deterministic))
{
return true;
}
SET (rule, processing);
if (determ_alts (SON (rule)))
{
UNSET (rule, processing);
if (!MARKED (rule, recursive))
{
det_count += 1;
SET (rule, deterministic);
/* fprintf(stderr, "line %ld: `%s' deterministic.\n",DEF(rule),REPR(rule)); */
}
/* else fprintf(stderr, "line %ld: `%s' recursive.\n",DEF(rule),REPR(rule)); */
/* */
return true;
}
else
{
UNSET (rule, processing);
nondet_count += 1;
if (det_flag)
{
if (input_from_partlist)
fprintf (stderr, "In %s:\n", PART (rule));
fprintf (stderr, "line %ld: `%s' nondeterministic.\n", LINE ((rule)), FREPR (rule));
/* SET(rule, deterministic); */
return true;
}
else
SET (rule, nondeterministic);
return false;
}
}
determ_alts (alt)
long alt;
{
for (; alt != nil; alt = BROTHER (alt))
{
if (BROTHER (alt) == nil)
last_alt = true;
else
last_alt = false;
if (!determ_mems (SON (alt)))
return false;
}
return true;
}
determ_mems (member)
long member;
{
long cut_in_alt = last_alt;
register long mem = member;
if (!cut_in_alt)
for (; mem != nil; mem = BROTHER (mem))
if (DEF (mem) == cut)
cut_in_alt = true;
if (!cut_in_alt)
return false;
for (mem = member; mem != nil; mem = BROTHER (mem))
if ((TERMINAL (mem)));
else if (!determ_rule (DEF (mem)))
{
return false;
}
return true;
}
compute_predicates ()
{
set_nr_of_mems_preds ();
decrease_mem_count_preds (-99);
set_nonpreds ();
}
empty ()
{
set_nr_of_mems ();
decrease_mem_count (-99);
set_notempty ();
}
set_nr_of_mems ()
{
long rule, alt, mem;
for (rule = root; rule != nil; rule = BROTHER (rule))
for (alt = SON (rule); alt != nil; alt = BROTHER (alt))
{
long nr_mems = 0;
for (mem = SON (alt); mem != nil; mem = BROTHER (mem))
if (FLAG_MARKED (mem, redirected_input))
continue;
else if TERMINAL
(mem)
{
SET (rule, notemptyrule);
for (; BROTHER (alt) != nil; alt = BROTHER (alt));
break;
}
else
nr_mems += 1;
DEF (alt) = nr_mems;
}
}
set_nr_of_mems_preds ()
{
long rule, alt, mem, no_mems;
for (rule = root; rule != nil; rule = BROTHER (rule))
{
long nr_mems = 0;
for (alt = SON (rule); !MARKED (rule, not_a_predicate) && alt != nil; alt = BROTHER (alt))
{
for (mem = SON (alt); mem != nil; mem = BROTHER (mem))
{
if (FLAG_MARKED (mem, redirected_input))
continue;
if (TERMINAL (mem))
{
SET (rule, not_a_predicate);
break;
}
else if (DEF (mem) != rule)
nr_mems += 1;
}
}
DEF (SON (rule)) = nr_mems;
}
}
decrease_mem_count_preds (rule)
long rule;
{
long rl, alt, mem;
for (rl = root; rl != nil; rl = BROTHER (rl))
if ((!MARKED (rl, not_a_predicate)) && (!MARKED (rl, is_predicate)))
{
for (alt = SON (rl); alt != nil; alt = BROTHER (alt))
for (mem = SON (alt); mem != nil; mem = BROTHER (mem))
if (FLAG_MARKED (mem, redirected_input))
continue;
else if (TERMINAL (mem));
else if (DEF (mem) == rule)
DEF (SON (rl)) -= 1;
if (DEF (SON (rl)) == 0)
{
SET (rl, is_predicate);
decrease_mem_count_preds (rl);
}
}
}
set_nonpreds ()
{
long rule, preds = 0, non_preds = 0;
for (rule = root; rule != nil; rule = BROTHER (rule))
if (!MARKED (rule, is_predicate))
{
SET (rule, not_a_predicate);
non_preds += 1;
}
else
preds += 1;
if (verbose_flag)
fprintf (stderr, "predicates: (%ld,%ld)\n", preds, non_preds);
}
decrease_mem_count (rule)
long rule;
{
long rl, alt, mem;
for (rl = root; rl != nil; rl = BROTHER (rl))
if ((!MARKED (rl, emptyrule)) && (!MARKED (rl, notemptyrule)))
for (alt = SON (rl); alt != nil; alt = BROTHER (alt))
{
for (mem = SON (alt); mem != nil; mem = BROTHER (mem))
if (TERMINAL (mem) || FLAG_MARKED (mem, redirected_input));
else if (DEF (mem) == rule)
DEF (alt) -= 1;
if (DEF (alt) == 0)
{
SET (rl, emptyrule);
decrease_mem_count (rl);
break;
}
}
}
long et = 0, net = 0;
set_notempty ()
{
long rule;
for (rule = root; rule != nil; rule = BROTHER (rule))
if (!MARKED (rule, emptyrule))
{
SET (rule, notemptyrule);
net += 1;
}
else
et += 1;
if (verbose_flag)
fprintf (stderr, "empty: (%ld,%ld)\n", et, net);
}
adp_walk ()
{
adp_clear ();
adp_stddefs ();
adp_rest ();
add_skip ();
if (verbose_flag)
fprintf (stderr, "%ld productions memoized (table size = %ldk)\n",
memo_count, (memo_count * (runtime_input_size >> 3)) >> 10);
compute_memo_gain ();
if (verbose_flag)
fprintf (stderr, "glammar: %ld more productions memorized because of semantic computations\n", memo_gain);
}
add_skip ()
{
register long rule, alt;
for (rule = root; rule != laststdpred; rule = BROTHER (rule))
if (MARKED (rule, nondeterministic))
for (alt = SON (rule); alt != nil; alt = BROTHER (alt))
if ((AM_flag) || (no_iha (AFFIXDEF (alt))))
add_skip_in_alt (alt);
}
no_iha (afx)
long afx;
{
for (; afx != nil; afx = BROTHER (afx))
if (INHERITED (afx))
return false;
return true;
}
add_skip_in_alt (alt)
long alt;
{
register long afx, skip_mem, max_count = 10000, count, mem, prev_mem, af, tm;
char *reprterm;
long all_empty;
for (mem = SON (alt); mem != nil; mem = BROTHER (mem))
if (TERMINAL (mem));
else if (MARKED (DEF (mem), nondeterministic))
break;
for (; mem != nil; mem = BROTHER (mem))
if (TERMINAL (mem))
break;
else if (MARKED (DEF (mem), notemptyrule))
break;
if (mem == nil)
{
DEF (alt) = -1;
return;
}
if ((BROTHER (mem) == nil) && (no_iha (AFFIXDEF (SON (DEF (mem))))) && (SON (alt) == mem))
{
DEF (alt) = -1;
return;
}
brother = nil;
newdefnode (ntnode, nil, nil, skip, REPR (skip));
skip_mem = brother;
for (afx = AFFIXDEF (alt); afx != nil; afx = BROTHER (afx))
{
if ((NODENAME (afx) == inherited) && (MARKED_ADP (afx, affix_directed_parsing)))
{
reprterm = REPR (SON (afx));
for (mem = SON (alt), count = 0; ((mem != nil) &&
(MARKED (DEF (mem), deterministic))); mem = BROTHER (mem), count++);
for (; mem != nil; mem = BROTHER (mem), count++)
for (af = AFFIXTREE (mem); af != nil; af = BROTHER (af))
if (!DERIVED (af))
for (tm = SON (af); tm != nil; tm = BROTHER (tm))
if ((REPR (tm) == reprterm) && (count < max_count))
max_count = count;
}
}
all_empty = true;
prev_mem = nil;
for (mem = SON (alt); mem != nil; prev_mem = mem, mem = BROTHER (mem))
if ((max_count-- == 0) && (!all_empty))
{
DEF (alt) = domemo;
memo_count += 1;
BROTHER (prev_mem) = skip_mem;
BROTHER (skip_mem) = mem;
}
else if (TERMINAL (mem))
all_empty = false;
else if ((all_empty) && (MARKED (DEF (mem), notemptyrule)))
all_empty = false;
if ((max_count > 0) && (prev_mem != nil) && (!all_empty))
{
DEF (alt) = domemo;
memo_count += 1;
BROTHER (prev_mem) = skip_mem;
BROTHER (skip_mem) = nil;
}
}
adp_clear ()
{
register long rule, afx, alt;
for (rule = root; rule != nil; rule = BROTHER (rule))
for (alt = SON (rule); alt != nil; alt = BROTHER (alt))
{
DEF (alt) = -1;
for (afx = AFFIXDEF (alt); afx != nil; afx = BROTHER (afx))
DEF (afx) = 0;
}
}
adp_stddefs ()
{
register long rule, afx, alt;
for (rule = laststdpred; rule != nil; rule = BROTHER (rule))
for (alt = SON (rule); alt != nil; alt = BROTHER (alt))
for (afx = AFFIXDEF (alt); afx != nil; afx = BROTHER (afx))
if (INHERITED (afx))
if (NODENAME (SON (afx)) == affixtm)
SET_ADP (afx, affix_directed_parsing);
else
SET_ADP (afx, no_affix_directed_parsing);
}
adp_rest ()
{
register long rule, afx, alt, count;
for (rule = root; rule != laststdpred; rule = BROTHER (rule))
for (afx = AFFIXDEF (SON (rule)), count = 0; afx != nil; afx = BROTHER (afx), count++)
if (INHERITED (afx))
adp_rule (rule, count);
}
alt_adp (reprtrm, mem)
char *reprtrm;
long mem;
{
long count = 0;
register long trm, afx;
for (; mem != nil; mem = BROTHER (mem))
for (count = 0, afx = AFFIXTREE (mem); afx != nil; afx = BROTHER (afx), count += 1)
if (INHERITED (afx))
for (trm = SON (afx); trm != nil; trm = BROTHER (trm))
if (REPR (trm) == reprtrm)
if (adp_rule (DEF (mem), count))
return 1;
else
{
long af;
for (af = AFFIXTREE (mem); af != nil; af = BROTHER (af))
if (NODENAME (af) == derived)
if (alt_adp (REPR (SON (af)), BROTHER (mem)))
return 1;
}
return 0;
}
long adp_rule (rule, count)
long rule, count;
{
long afx, alt;
for (alt = SON (rule); alt != nil; alt = BROTHER (alt))
{
afx = get_affix (AFFIXDEF (alt), count);
if (MARKED_ADP (afx, affix_directed_parsing))
return true;
if (MARKED_ADP (afx, no_affix_directed_parsing))
return false;
else if (MARKED_ADP (afx, processing));
else
{
SET_ADP (afx, processing);
if (!alt_adp (REPR (SON (afx)), SON (alt)))
{
SET_ADP (afx, no_affix_directed_parsing);
UNSET_ADP (afx, processing);
}
else
{
UNSET_ADP (afx, processing);
for (alt = SON (rule); alt != nil; alt = BROTHER (alt))
for (afx = AFFIXDEF (alt); afx != nil; afx = BROTHER (afx))
if (NODENAME (afx) == inherited)
{
UNSET_ADP (afx, no_affix_directed_parsing);
SET_ADP (afx, affix_directed_parsing);
}
return true;
}
}
}
return false;
}
long get_affix (afx, count)
long afx, count;
{
for (; afx != nil; afx = BROTHER (afx), count -= 1)
if (INHERITED (afx))
if (count == 0)
return afx;
fprintf (stderr, "glammar: fatal compiler error in adp.get_affix (count was %ld)\n", count);
exit (-1);
return 0; /* Bypass compiler warning */
}
left_rec ()
{
long rule;
left_rec_rule (root);
for (rule = root; rule != laststdpred; rule = BROTHER (rule))
if (MARKED (rule, leftrec))
{
if (input_from_partlist)
fprintf (stderr, "In %s:\n", PART (rule));
fprintf (stderr, "line %ld: `%s' left recursive\n", LINE ((rule)), FREPR (rule));
exit (-1);
}
}
void left_rec_rule (long rule)
{
if (MARKED (rule, processing))
{
SET (rule, leftrec);
return;
}
if (MARKED (rule, leftrec))
return;
if (MARKED (rule, notleftrec))
return;
SET (rule, processing);
left_rec_alts (SON (rule));
UNSET (rule, processing);
if (!MARKED (rule, leftrec))
SET (rule, notleftrec);
}
left_rec_alts (alt)
long alt;
{
for (; alt != nil; alt = BROTHER (alt))
left_rec_mem (SON (alt));
}
left_rec_mem (member)
long member;
{
for (; member != nil; member = BROTHER (member))
{
long rule = DEF (member);
if (TERMINAL (member))
return;
else if (!MARKED (rule, emptyrule))
{
left_rec_rule (rule);
return;
}
else
left_rec_rule (rule);
}
}
recursive_ ()
{
long rule;
recursive_rule (root);
if (verbose_flag)
{
for (rule = root; rule != laststdpred; rule = BROTHER (rule))
if (MARKED (rule, recursive))
recursive_count += 1;
fprintf (stderr, "glammar semantic compute: %ld rules are recursive\n", recursive_count);
}
}
void recursive_rule (long rule)
{
if (MARKED (rule, processing))
{
SET (rule, recursive);
return;
}
if (MARKED (rule, recursive))
return;
if (MARKED (rule, notrecursive))
return;
SET (rule, processing);
recursive_alts (SON (rule));
UNSET (rule, processing);
if (!MARKED (rule, recursive))
SET (rule, notrecursive);
}
recursive_alts (alt)
long alt;
{
register long member;
for (; alt != nil; alt = BROTHER (alt))
for (member = SON (alt); member != nil; member = BROTHER (member))
if (TERMINAL (member));
else
recursive_rule (DEF (member));
}
compute_memo_gain ()
{
register long rule, alt;
nr_of_memo_alts = memo_count;
memo_gain = 0;
for (rule = root; rule != laststdpred; rule = BROTHER (rule))
for (alt = SON (rule); alt != nil; alt = BROTHER (alt))
if (MEMOIZE (alt))
{
if (inherited_afx (alt))
memo_gain += 1;
}
}
inherited_afx (alt)
long alt;
{
long afx;
for (afx = AFFIXDEF (alt); afx != nil; afx = BROTHER (afx))
if (NODENAME (afx) == inherited)
return true;
return false;
}
hint_on_non_used_hyperrules (local)
long local;
{
long rule;
long l = 0;
if (local)
l = external;
for (rule = root; rule > laststdpred; rule = BROTHER (rule))
if (!MARKED (rule, rule_used + l))
{
char *r;
if (rule == root || rule == init_one_star)
continue;
if (input_from_partlist)
fprintf (stderr, "In %s:\n", PART (rule));
r = FREPR (rule);
fprintf (stderr, "line %ld: (hint) lhs '%s' not used\n", LINE ((rule)), r);
}
}
int tag_cmp (const void *e1, const void *e2)
{
long r1, r2;
r1 = *((long *) e1);
r2 = *((long *) e2);
return strcmp (REPR (r1), REPR (r2));
}
tag_index ()
{
long alt, rule, rrule, mem;
long *list, nr = 1;
if (output == stdout)
{
tagindexfile = stdout;
}
else
{
tagindexfile = fopen (tagindexfilename, "w");
}
if (!tagindexfile)
return;
for (rrule = root; rrule != laststdpred; rrule = BROTHER (rrule))
{
if (strchr (REPR (rrule), '_') || !LINE (rrule))
continue;
nr++;
if (!input_from_partlist)
PART (rrule) = inputfilename;
}
for (rrule = lastmetarule; rrule != laststdmetarule; rrule = BROTHER (rrule))
{
if (strchr (REPR (rrule), '_'))
continue;
nr++;
if (!input_from_partlist)
PART (rrule) = inputfilename;
}
for (rrule = laststdpred; rrule != nil; rrule = BROTHER (rrule))
{
if (MARKED (rrule, rule_used) && !strchr (REPR (rrule), '_'))
{
nr++;
PART (rrule) = stddefs_g;
}
}
list = malloc (sizeof (long) * nr);
nr = 0;
for (rrule = root; rrule != laststdpred; rrule = BROTHER (rrule))
{
if (strchr (REPR (rrule), '_') || !LINE (rrule))
continue;
list[nr++] = rrule;
}
for (rrule = lastmetarule; rrule != laststdmetarule; rrule = BROTHER (rrule))
{
if (strchr (REPR (rrule), '_'))
continue;
list[nr++] = rrule;
}
for (rrule = laststdpred; rrule != nil; rrule = BROTHER (rrule))
if (MARKED (rrule, rule_used) && !strchr (REPR (rrule), '_'))
{
list[nr++] = rrule;
}
qsort (list, (size_t) nr, sizeof (long), tag_cmp);
for (rule = 0; rule < nr; rule++)
{
rrule = list[rule];
if (fprintf (tagindexfile, "%s\t%s\t%ld\n", FREPR (rrule), PART (rrule), LINE (rrule)) == EOF)
fprintf (stderr, "glammar: Write to tag index file failed\n");
}
}
better_index ()
{
long alt, rule, rrule, mem;
for (rrule = root; rrule != laststdpred; rrule = BROTHER (rrule))
{
if (input_from_partlist)
{
if (fprintf (indexfile, "%s in %s used by:\n", FREPR (rrule), PART (rrule)) == EOF)
fprintf (stderr, "glammar: Write to index file failed\n");
}
else if (fprintf (indexfile, "%s used by:\n", FREPR (rrule)) == EOF)
fprintf (stderr, "glammar: Write to index file failed\n");
for (rule = root; rule != laststdpred; rule = BROTHER (rule))
for (alt = SON (rule); alt != nil; alt = BROTHER (alt))
for (mem = SON (alt); mem != nil; mem = BROTHER (mem))
if (NONTERMINAL (mem) && DEF (mem) == rrule)
{
if (input_from_partlist)
fprintf (indexfile, " %s %s,%ld\n", PART (rule), FREPR (rule), LINE (mem));
else
fprintf (indexfile, " %s,%ld\n", FREPR (rule), LINE (mem));
}
}
}
long vol_count, nonvol_count;
set_volatile ()
{
long alt, rule, mem;
SET (assign, isvolatile);
SET (repair, isvolatile);
SET (add_to, isvolatile);
SET (initmeta, isvolatile);
SET (evalmeta, isvolatile);
vol_count = 0;
nonvol_count = 0;
for (rule = laststdpred; rule != nil; rule = BROTHER (rule))
{
if ((!MARKED (rule, isvolatile)))
SET (rule, nonvolatile);
}
compute_volatile (root);
check_volatile ();
if ((MARKED (root, isvolatile)))
{
if (verbose_flag)
fprintf (stderr, "glammar semantic compute: Grammar is volatile (%ld, %ld).\n", vol_count, nonvol_count);
}
for (rule = root; rule != laststdpred; rule = BROTHER (rule))
for (alt = SON (rule); alt != nil; alt = BROTHER (alt))
{
long afx;
long noderived = true;
for (afx = AFFIXDEF (alt); afx != nil; afx = BROTHER (afx))
if (DERIVED (afx))
break;
if (afx != nil)
break;
mem = SON (alt);
if (mem == nil)
continue;
for (; mem != nil; mem = BROTHER (mem))
if (NONTERMINAL (mem) && MARKED (DEF (mem), isvolatile))
break;
if (mem != nil)
continue;
FLAG_SET (alt, freestacks_f);
}
}
check_volatile ()