_parse_help: Expand --[no]foo to --foo and --nofoo.

bash_completion

@@ -759,8 +759,18 @@ _parse_help()
                  if ($i !~ /^-/) { break }
              }
              if (x == -1) { x = 1 }
-             sub("[=<{[].*", "", $x);
-             print $x
+             if ($x ~ /^--?[[]no[]]./) {
+                 y = $x ; sub("[[]no[]]", "", y)
+                 z = $x ; sub("[[]no[]]", "no", z)
+                 sub("[=<{[].*", "", y)
+                 sub("[=<{[].*", "", z)
+                 print y
+                 print z
+             }
+             else {
+                 sub("[=<{[].*", "", $x)
+                 print $x
+             }
          }'
 }
 

test/unit/_parse_help.exp

@@ -89,5 +89,9 @@ set cmd {fn() { printf '%s\n' "--foo={bar,quux}"; }; _parse_help fn}
 assert_bash_list "--foo" $cmd "long with value in curly brackets"
 sync_after_int
 
+set cmd {fn() { printf '%s\n' "--[no]foo"; }; _parse_help fn}
+assert_bash_list "--foo\n--nofoo" $cmd "long with \[no\]"
+sync_after_int
+
 
 teardown