Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-11 05:13:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

* src/closure.c, src/derives.c, src/gram.h, src/lalr.c,

Browse Source 
* src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
* src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
RHS, instead of being an index in RITEMS.
This commit is contained in:
Akim Demaille
2002-04-07 15:29:36 +00:00
parent e966383bf4
commit 9901390012
11 changed files with 38 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/nullable.c
View File

@@ -71,19 +71,19 @@ set_nullable (void)
for (ruleno = 1; ruleno < nrules + 1; ++ruleno)
if (rules[ruleno].useful)
{
if (ritem[rules[ruleno].rhs] >= 0)
if (rules[ruleno].rhs[0] >= 0)
{
/* This rule has a non empty RHS. */
short *r;
int any_tokens = 0;
for (r = &ritem[rules[ruleno].rhs]; *r >= 0; ++r)
for (r = rules[ruleno].rhs; *r >= 0; ++r)
if (ISTOKEN (*r))
any_tokens = 1;
/* This rule has only nonterminals: schedule it for the second
pass. */
if (!any_tokens)
for (r = &ritem[rules[ruleno].rhs]; *r >= 0; ++r)
for (r = rules[ruleno].rhs; *r >= 0; ++r)
{
rcount[ruleno]++;
p->next = rsets[*r];
@@ -95,7 +95,7 @@ set_nullable (void)
else
{
/* This rule has an empty RHS. */
assert (ritem[rules[ruleno].rhs] == -ruleno);
assert (rules[ruleno].rhs[0] == -ruleno);
if (rules[ruleno].useful && !nullable[rules[ruleno].lhs])
{
nullable[rules[ruleno].lhs] = 1;