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Overview
| Comment: | Cleaner error handling in fixempties(). |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | core-8-4-branch |
| Files: | files | file ages | folders |
| SHA1: |
ee7549bebd8a899573c8789e410ec0cb |
| User & Date: | dgp 2013-03-06 21:51:23 |
Context
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2013-03-08
| ||
| 21:12 | Some more ignore-glob settings for msvc, mac, hp .... check-in: 46c1b89e22 user: jan.nijtmans tags: core-8-4-branch | |
|
2013-03-06
| ||
| 21:54 | Cleaner error handling in fixempties(). check-in: 8577d952c4 user: dgp tags: core-8-5-branch | |
| 21:51 | Cleaner error handling in fixempties(). check-in: ee7549bebd user: dgp tags: core-8-4-branch | |
| 19:25 | 3604074,3606683 Rewrite of the fixempties() routine (and supporting routines) to completely eliminat... check-in: 8293cc6b1f user: dgp tags: core-8-4-branch | |
Changes
Changes to generic/regc_nfa.c.
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/* Reset the tmp fields as we walk back */
nexts = s2->tmp;
s2->tmp = NULL;
}
s->tmp = NULL;
}
/*
* Remove all the EMPTY arcs, since we don't need them anymore.
*/
for (s = nfa->states; s != NULL; s = s->next)
for (a = s->outs; a != NULL; a = nexta) {
nexta = a->outchain;
if (a->type == EMPTY)
freearc(nfa, a);
}
/*
* And remove any states that have become useless. (This
* cleanup is not very thorough, and would be even less so if we
* tried to combine it with the previous step; but cleanup()
* will take care of anything we miss.)
*/
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/* Reset the tmp fields as we walk back */
nexts = s2->tmp;
s2->tmp = NULL;
}
s->tmp = NULL;
}
if (NISERR())
return;
/*
* Remove all the EMPTY arcs, since we don't need them anymore.
*/
for (s = nfa->states; s != NULL; s = s->next)
for (a = s->outs; a != NULL; a = nexta) {
nexta = a->outchain;
if (a->type == EMPTY)
freearc(nfa, a);
}
/*
* And remove any states that have become useless. (This
* cleanup is not very thorough, and would be even less so if we
* tried to combine it with the previous step; but cleanup()
* will take care of anything we miss.)
*/
for (s = nfa->states; s != NULL; s = nexts) {
nexts = s->next;
if ((s->nins == 0 || s->nouts == 0) && !s->flag)
dropstate(nfa, s);
}
if (f != NULL)
dumpnfa(nfa, f);
}
/*
- emptyreachable - recursively find all states reachable from s by EMPTY arcs
* The return value is the last such state found. Its tmp field links back
* to the next-to-last such state, and so on back to s, so that all these
|
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