[nsis mode] add ${Case} variants

Reference: https://nsis.sourceforge.io/LogicLib

Author: idleberg

mode/nsis/nsis.js

@@ -40,7 +40,7 @@ CodeMirror.defineSimpleMode("nsis",{
     {regex: /\b(?:admin|all|amd64-unicode|auto|both|bottom|bzip2|components|current|custom|directory|false|force|hide|highest|ifdiff|ifnewer|instfiles|lastused|leave|left|license|listonly|lzma|nevershow|none|normal|notset|off|on|right|show|silent|silentlog|textonly|top|true|try|un\.components|un\.custom|un\.directory|un\.instfiles|un\.license|uninstConfirm|user|Win10|Win7|Win8|WinVista|x-86-(ansi|unicode)|zlib)\b/i, token: "builtin"},
 
     // LogicLib.nsh
-    {regex: /\$\{(?:And(?:If(?:Not)?|Unless)|Break|Case(?:Else)?|Continue|Default|Do(?:Until|While)?|Else(?:If(?:Not)?|Unless)?|End(?:If|Select|Switch)|Exit(?:Do|For|While)|For(?:Each)?|If(?:Cmd|Not(?:Then)?|Then)?|Loop(?:Until|While)?|Or(?:If(?:Not)?|Unless)|Select|Switch|Unless|While)\}/i, token: "variable-2", indent: true},
+    {regex: /\$\{(?:And(?:If(?:Not)?|Unless)|Break|Case(?:2|3|4|5|Else)?|Continue|Default|Do(?:Until|While)?|Else(?:If(?:Not)?|Unless)?|End(?:If|Select|Switch)|Exit(?:Do|For|While)|For(?:Each)?|If(?:Cmd|Not(?:Then)?|Then)?|Loop(?:Until|While)?|Or(?:If(?:Not)?|Unless)|Select|Switch|Unless|While)\}/i, token: "variable-2", indent: true},
 
     // FileFunc.nsh
     {regex: /\$\{(?:BannerTrimPath|DirState|DriveSpace|Get(BaseName|Drives|ExeName|ExePath|FileAttributes|FileExt|FileName|FileVersion|Options|OptionsS|Parameters|Parent|Root|Size|Time)|Locate|RefreshShellIcons)\}/i, token: "variable-2", dedent: true},