Fix handling of abbreviated control command in gdb-mi.el

* lisp/progmodes/gdb-mi.el (gdb-control-commands-regexp):
Support unambiguous abbreviations of commands.  (Bug#32576)

1 files changed, 3 insertions, 2 deletions

diff --git a/lisp/progmodes/gdb-mi.el b/lisp/progmodes/gdb-mi.el
index 32d5ced67d0..0506386a75d 100644
--- a/lisp/progmodes/gdb-mi.el
+++ b/lisp/progmodes/gdb-mi.el
@@ -1782,9 +1782,10 @@ static char *magick[] = {
 (defvar gdb-control-commands-regexp
   (concat
    "^\\("
-   "commands\\|if\\|while\\|define\\|document\\|"
+   "comm\\(a\\(n\\(ds?\\)?\\)?\\)?\\|if\\|while"
+   "\\|def\\(i\\(ne?\\)?\\)?\\|doc\\(u\\(m\\(e\\(nt?\\)?\\)?\\)?\\)?\\|"
    gdb-python-guile-commands-regexp
-   "\\|while-stepping\\|stepping\\|ws\\|actions"
+   "\\|while-stepping\\|stepp\\(i\\(ng?\\)?\\)?\\|ws\\|actions"
    "\\)\\([[:blank:]]+\\([^[:blank:]]*\\)\\)?$")
   "Regexp matching GDB commands that enter a recursive reading loop.
 As long as GDB is in the recursive reading loop, it does not expect