Support hyphen in Bash function names

* lisp/progmodes/sh-script.el (sh-imenu-generic-expression): Add
hyphen to function-name regexp.

Copyright-paperwork-exempt: yes

1 files changed, 12 insertions, 0 deletions

diff --git a/lisp/progmodes/sh-script.el b/lisp/progmodes/sh-script.el
index 8ba64100203..04d995d0404 100644
--- a/lisp/progmodes/sh-script.el
+++ b/lisp/progmodes/sh-script.el
@@ -300,6 +300,18 @@ naming the shell."
         (nil
          "^\\s-*\\([[:alpha:]_][[:alnum:]_]*\\)\\s-*()"
          1)))
+    ;; The difference between the Bash regular expression and the sh regular
+    ;; expression is that Bash also allows hyphens (-).
+    (bash
+     . ((nil
+         ;; function FOO
+         ;; function FOO()
+         "^\\s-*function\\s-+\\([[:alpha:]_][[:alnum:]_-]*\\)\\s-*\\(?:()\\)?"
+         1)
+        ;; FOO()
+        (nil
+         "^\\s-*\\([[:alpha:]_][[:alnum:]_-]*\\)\\s-*()"
+         1)))
     (mksh
      . ((nil
          ;; function FOO