implemented tere_set_is_interrupted_cb()

Allows you to set up a callback that's invoked repeatedly during
matching. If it returns non-0 matching will abort and REG_EINTR is
returned.
Allows you to interrupt long-running regexp executions that would
otherwise block the UI or hang the entire application.

1 files changed, 11 insertions, 0 deletions

diff --git a/regcomp.c b/regcomp.c
index bd332dc..e6c9f94 100644
--- a/regcomp.c
+++ b/regcomp.c
@@ -273,6 +273,17 @@ static struct fns functions = {
 };
 
 /*
+ - tere_set_is_interrupted_cb - set is_interrupted callback
+ ^ void tere_set_is_interrupted_cb(regex_t *, int (*cb)(void));
+ */
+void
+tere_set_is_interrupted_cb(
+    regex_t *re, int (*cb)(void))
+{
+    ((struct fns *)re->re_fns)->is_interrupted = cb;
+}
+
+/*
  - compile - compile regular expression
  ^ int compile(regex_t *, const chr *, size_t, int);
  */