summaryrefslogtreecommitdiff
path: root/src/eval.c
diff options
context:
space:
mode:
authorNoam Postavsky <npostavs@gmail.com>2016-08-05 22:11:00 -0400
committerNoam Postavsky <npostavs@gmail.com>2016-08-07 10:24:40 -0400
commit7fb75680b38fe0805c2ff7e9cca3bec8121ba984 (patch)
tree9c086324af4e640e897de8c70efc5cf6622e2c12 /src/eval.c
parent2c0506173d92dd9d6de409a045668c6b5cf1fcef (diff)
Fix debugging of string-match-p errors
* src/eval.c (call_debugger): Bind inhibit-changing-match-data to nil so that debugger code that needs to do regexp match won't break (Bug #23949, Bug #24166, Bug#16294).
Diffstat (limited to 'src/eval.c')
-rw-r--r--src/eval.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/eval.c b/src/eval.c
index 33b82f74b6..d182f7f693 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -300,6 +300,11 @@ call_debugger (Lisp_Object arg)
specbind (Qinhibit_redisplay, Qnil);
specbind (Qinhibit_debugger, Qt);
+ /* If we are debugging an error while `inhibit-changing-match-data'
+ is bound to non-nil (e.g., within a call to `string-match-p'),
+ then make sure debugger code can still use match data. */
+ specbind (Qinhibit_changing_match_data, Qnil);
+
#if 0 /* Binding this prevents execution of Lisp code during
redisplay, which necessarily leads to display problems. */
specbind (Qinhibit_eval_during_redisplay, Qt);