Commit 3f539c00 authored by Noam Postavsky's avatar Noam Postavsky Committed by Eli Zaretskii

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).

This was backported from master
(cherry picked from commit 7fb75680)
parent f746a92c
......@@ -299,6 +299,11 @@ 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);
......@@ -3396,6 +3396,7 @@ or other such regexp constructs are not replaced with this.
A value of nil (which is the normal value) means treat spaces literally. */);
Vsearch_spaces_regexp = Qnil;
DEFSYM (Qinhibit_changing_match_data, "inhibit-changing-match-data");
DEFVAR_LISP ("inhibit-changing-match-data", Vinhibit_changing_match_data,
doc: /* Internal use only.
If non-nil, the primitive searching and matching functions
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment