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Overview
| Comment: | Cleaner error handling in fixempties(). |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
c769b9bb91ec4a8cddbba48832f6d7c2 |
| User & Date: | dgp 2013-03-06 21:55:29 |
Context
|
2013-03-08
| ||
| 20:57 | msvc compiler warning: signed-unsigned mismatch. check-in: 8af2068174 user: jan.nijtmans tags: trunk | |
|
2013-03-07
| ||
| 21:30 | Work in progress reworking how literals are stored. First effort is replacing the string based loca... check-in: 8de868a03b user: dgp tags: dgp-literal-reform | |
| 21:16 | Correct unbalanced effect of TclInvalidateCmdLiteral() on the refcounts of literals in the global ta... Closed-Leaf check-in: 03fa2a45da user: dgp tags: bug-3607246 | |
| 04:44 | merge trunk check-in: a9b009d0e5 user: dgp tags: dgp-refactor | |
|
2013-03-06
| ||
| 21:55 | Cleaner error handling in fixempties(). check-in: c769b9bb91 user: dgp tags: trunk | |
| 21:54 | Cleaner error handling in fixempties(). check-in: 8577d952c4 user: dgp tags: core-8-5-branch | |
| 20:50 | 3604074,3606683 Rewrite of the fixempties() routine (and supporting routines) to completely eliminat... check-in: 4d7eba11ad user: dgp tags: trunk | |
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
|
| ︙ | ︙ |