Merge pull request sublimehq#8 from deathaxe/pr/regex/simplify-duplic…

…ate-group-start-logic

[Regular Expressions] Add other_modifiers variable

Regular Expressions/RegExp (Basic).sublime-syntax

@@ -15,6 +15,7 @@ variables:
   char_class: '\\(?:[wWsSdDhHvVXR]|[pP](?:\{[a-zA-Z_]+\}|(L&|[A-Z][a-z]?)))'
   activate_x_mode: (?:\?[ims]*x[ixms]*(?:-[ims]+)?)
   deactivate_x_mode: (?:\?[ims]*-[ims]*x[imxs]*)
+  other_modifiers: \?(?:[ixms]*-)?[ixms]+
 
 contexts:
   main:
@@ -110,11 +111,11 @@ contexts:
       pop: 3
       set: [group-body, maybe-unexpected-quantifiers]
     # Other modifiers
-    - match: '\?(?:[ixms]*-)?[ixms]+:'
+    - match: '{{other_modifiers}}:'
       scope: storage.modifier.mode.regexp
       pop: 1
     # Other modifiers (must come after other modifier matches)
-    - match: (\?(?:[ixms]*-)?[ixms]+)(\))
+    - match: ({{other_modifiers}})(\))
       captures:
         1: storage.modifier.mode.regexp
         2: keyword.control.group.regexp