Added support for .gitignore (#2481)

components.json

@@ -483,6 +483,20 @@
 			"title": "Icon",
 			"owner": "Golmote"
 		},
+		"ignore": {
+			"title": ".ignore",
+			"owner": "osipxd",
+			"alias": [
+				"gitignore",
+				"hgignore",
+				"npmignore"
+			],
+			"aliasTitles": {
+				"gitignore": ".gitignore",
+				"hgignore": ".hgignore",
+				"npmignore": ".npmignore"
+			}
+		},
 		"inform7": {
 			"title": "Inform 7",
 			"owner": "Golmote"

components/prism-ignore.js

@@ -0,0 +1,23 @@
+(function (Prism) {
+	Prism.languages.ignore = {
+		// https://git-scm.com/docs/gitignore
+		'comment': /^#.*/m,
+		'entry': {
+			pattern: /\S(?:.*(?:(?:\\ )|\S))?/,
+			alias: 'string',
+			inside: {
+				'operator': /^!|\*\*?|\?/,
+				'regex': {
+					pattern: /(^|[^\\])\[[^\[\]]*\]/,
+					lookbehind: true
+				},
+				'punctuation': /\//
+			}
+		}
+	};
+
+	Prism.languages.gitignore = Prism.languages.ignore
+	Prism.languages.hgignore = Prism.languages.ignore
+	Prism.languages.npmignore = Prism.languages.ignore
+
+}(Prism));

examples/prism-ignore.html

@@ -0,0 +1,7 @@
+<h2>Comment</h2>
+<pre><code># This is a comment</code></pre>
+
+<h2>Entry</h2>
+<pre><code>file[1-3].txt
+.configs/**
+!.configs/shared.cfg</code></pre>

plugins/autoloader/prism-autoloader.js

@@ -172,6 +172,9 @@
 		"xls": "excel-formula",
 		"gamemakerlanguage": "gml",
 		"hs": "haskell",
+		"gitignore": "ignore",
+		"hgignore": "ignore",
+		"npmignore": "ignore",
 		"webmanifest": "json",
 		"kt": "kotlin",
 		"kts": "kotlin",

plugins/show-language/prism-show-language.js

@@ -81,6 +81,10 @@
 		"hpkp": "HTTP Public-Key-Pins",
 		"hsts": "HTTP Strict-Transport-Security",
 		"ichigojam": "IchigoJam",
+		"ignore": ".ignore",
+		"gitignore": ".gitignore",
+		"hgignore": ".hgignore",
+		"npmignore": ".npmignore",
 		"inform7": "Inform 7",
 		"javadoc": "JavaDoc",
 		"javadoclike": "JavaDoc-like",

tests/languages/ignore/comment_feature.test

@@ -0,0 +1,15 @@
+# Simple comment
+## A comment too
+\# Not a comment
+
+----------------------------------------------------
+
+[
+	["comment", "# Simple comment"],
+	["comment", "## A comment too"],
+	["entry", ["\\# Not a comment"]]
+]
+
+----------------------------------------------------
+
+Checks for comments.