diff options
Diffstat (limited to 'support/dfa.h')
| -rw-r--r-- | support/dfa.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/support/dfa.h b/support/dfa.h index 2e25ef9f..53d6d333 100644 --- a/support/dfa.h +++ b/support/dfa.h @@ -65,15 +65,20 @@ enum extern void dfasyntax (struct dfa *, struct localeinfo const *, reg_syntax_t, int); -/* Build and return the struct dfamust from the given struct dfa. */ +/* Parse the given string of given length into the given struct dfa. */ +extern void dfaparse (char const *, size_t, struct dfa *); + +/* Allocate and return a struct dfamust from a struct dfa that was + initialized by dfaparse and not yet given to dfacomp. */ extern struct dfamust *dfamust (struct dfa const *); /* Free the storage held by the components of a struct dfamust. */ extern void dfamustfree (struct dfamust *); /* Compile the given string of the given length into the given struct dfa. - Final argument is a flag specifying whether to build a searching or an - exact matcher. */ + The last argument says whether to build a searching or an exact matcher. + A null first argument means the struct dfa has already been + initialized by dfaparse; the second argument is ignored. */ extern void dfacomp (char const *, size_t, struct dfa *, bool); /* Search through a buffer looking for a match to the given struct dfa. |