fix(powershell) -- flags now highlighted correctly (#3203)

CHANGES.md

@@ -11,6 +11,7 @@ Grammars:
 - enh(elixir) much improved regular expression sigil support (#3207) [Josh Goebel][]
 - enh(elixir) updated list of keywords (#3212) [Angelika Tyborska][]
 - fix(elixir) fixed number detection when numbers start with a zero (#3212) [Angelika Tyborska][]
+- fix(ps1) Flag highlighted incorrectly (#3167) [Pankaj Patil][]
 
 [Stel Abrego]: https://github.com/stelcodes
 [Josh Goebel]: https://github.com/joshgoebel
@@ -19,6 +20,7 @@ Grammars:
 [Angelika Tyborska]: https://github.com/angelikatyborska
 [Konrad Rudolph]: https://github.com/klmr
 [tebeco]: https://github.com/tebeco
+[Pankaj Patil]: https://github.com/patil2099
 
 
 ## Version 11.0.0

src/languages/powershell.js

@@ -236,7 +236,7 @@ export default function(hljs) {
       },
       {
         className: 'literal',
-        begin: /(-)[\w\d]+/,
+        begin: /(-){1,2}[\w\d-]+/,
         relevance: 0
       }
     ]

test/markup/powershell/flags.expect.txt

@@ -0,0 +1,4 @@
+<span class="hljs-string">&quot;Good Dog&quot;</span> <span class="hljs-literal">--match-lower-case</span> <span class="hljs-string">&quot;Dog&quot;</span>
+<span class="hljs-number">2</span> <span class="hljs-literal">--equality-check</span> <span class="hljs-number">2</span>
+<span class="hljs-string">&quot;abc&quot;</span> <span class="hljs-literal">--format-drive-fully</span> <span class="hljs-string">&quot;def&quot;</span>
+format /dev/devices/driveA <span class="hljs-literal">--format-drive-fully</span> <span class="hljs-literal">-yes</span>

test/markup/powershell/flags.txt

@@ -0,0 +1,4 @@
+"Good Dog" --match-lower-case "Dog"
+2 --equality-check 2
+"abc" --format-drive-fully "def"
+format /dev/devices/driveA --format-drive-fully -yes