Update dfa, including API changes.

1 files changed, 8 insertions, 5 deletions

diff --git a/dfa.h b/dfa.h
index 242f4cfa..02f56f44 100644
--- a/dfa.h
+++ b/dfa.h
@@ -54,10 +54,10 @@ extern struct dfamust *dfamust (struct dfa const *);
 /* Free the storage held by the components of a struct dfamust. */
 extern void dfamustfree (struct dfamust *);
 
-/* dfasyntax() takes three arguments; the first sets the syntax bits described
-   earlier in this file, the second sets the case-folding flag, and the
-   third specifies the line terminator. */
-extern void dfasyntax (reg_syntax_t, bool, unsigned char);
+/* dfasyntax() takes four arguments; the first is the dfa to operate on, the
+   second sets the syntax bits described earlier in this file, the third sets
+   the case-folding flag, and the fourth specifies the line terminator. */
+extern void dfasyntax (struct dfa *, reg_syntax_t, bool, unsigned char);
 
 /* 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
@@ -104,4 +104,7 @@ extern void dfawarn (const char *);
    The user must supply a dfaerror.  */
 extern _Noreturn void dfaerror (const char *);
 
-extern bool using_utf8 (void);
+extern bool dfa_using_utf8 (void) _GL_ATTRIBUTE_PURE;
+
+/* This must be called before calling any of the above dfa*() functions. */
+extern void dfa_init (void);