Added support for ReScript (#3435)

components.json

@@ -1212,6 +1212,11 @@
 			"alias": "rpy",
 			"owner": "HyuchiaDiego"
 		},
+		"rescript": {
+			"title": "ReScript",
+			"alias": "res",
+			"owner": "vmarcosp"
+		},
 		"rest": {
 			"title": "reST (reStructuredText)",
 			"owner": "Golmote"

components/prism-rescript.js

@@ -0,0 +1,60 @@
+Prism.languages.rescript = {
+	'comment': {
+		pattern: /\/\/.*|\/\*[\s\S]*?(?:\*\/|$)/,
+		greedy: true
+	},
+	'char': { pattern: /'(?:[^\r\n\\]|\\(?:.|\w+))'/, greedy: true },
+	'string': {
+		pattern: /"(?:\\(?:\r\n|[\s\S])|[^\\\r\n"])*"/,
+		greedy: true
+	},
+	'class-name': /\b[A-Z]\w*|@[a-z.]*|#[A-Za-z]\w*|#\d/,
+	'function': {
+		pattern: /[a-zA-Z]\w*(?=\()|(\.)[a-z]\w*/,
+		lookbehind: true,
+	},
+	'number': /(?:\b0x(?:[\da-f]+(?:\.[\da-f]*)?|\.[\da-f]+)(?:p[+-]?\d+)?|(?:\b\d+(?:\.\d*)?|\B\.\d+)(?:e[+-]?\d+)?)[ful]{0,4}/i,
+	'boolean': /\b(?:false|true)\b/,
+	'attr-value': /[A-Za-z]\w*(?==)/,
+	'constant': {
+		pattern: /(\btype\s+)[a-z]\w*/,
+		lookbehind: true
+	},
+	'tag': {
+		pattern: /(<)[a-z]\w*|(?:<\/)[a-z]\w*/,
+		lookbehind: true,
+		inside: {
+			'operator': /<|>|\//,
+		},
+	},
+	'keyword': /\b(?:and|as|assert|begin|bool|class|constraint|do|done|downto|else|end|exception|external|float|for|fun|function|if|in|include|inherit|initializer|int|lazy|let|method|module|mutable|new|nonrec|object|of|open|or|private|rec|string|switch|then|to|try|type|when|while|with)\b/,
+	'operator': /\.{3}|:[:=]?|\|>|->|=(?:==?|>)?|<=?|>=?|[|^?'#!~`]|[+\-*\/]\.?|\b(?:asr|land|lor|lsl|lsr|lxor|mod)\b/,
+	'punctuation': /[(){}[\],;.]/
+};
+
+Prism.languages.insertBefore('rescript', 'string', {
+	'template-string': {
+		pattern: /`(?:\\[\s\S]|\$\{(?:[^{}]|\{(?:[^{}]|\{[^}]*\})*\})+\}|(?!\$\{)[^\\`])*`/,
+		greedy: true,
+		inside: {
+			'template-punctuation': {
+				pattern: /^`|`$/,
+				alias: 'string'
+			},
+			'interpolation': {
+				pattern: /((?:^|[^\\])(?:\\{2})*)\$\{(?:[^{}]|\{(?:[^{}]|\{[^}]*\})*\})+\}/,
+				lookbehind: true,
+				inside: {
+					'interpolation-punctuation': {
+						pattern: /^\$\{|\}$/,
+						alias: 'tag'
+					},
+					rest: Prism.languages.rescript
+				}
+			},
+			'string': /[\s\S]+/
+		}
+	},
+});
+
+Prism.languages.res = Prism.languages.rescript;

examples/prism-rescript.html

@@ -0,0 +1,52 @@
+<h2>Comments</h2>
+<pre><code>/* This is a comment */
+// Another comment
+</code></pre>
+
+<h2>Let bindings</h2>
+<pre><code>let name = "Alonzo Church"
+let message = `Hello ${name}`
+let message2 = `Hello ${person.name}`
+let result = `Testing => ${Module.Another.value}`
+let value = 1
+let result = 1 + 1
+let langs = ["ReScript", "JavaScript"]
+let person = ("Alonzo", 32)</code></pre>
+
+<h2>Type declarations & Functions</h2>
+<pre><code>type role = | Admin | Editor | Viewer 
+type numeric = #1 | #2 | #3
+type normal = #Poly | #Variant
+type myPolyVar = [ #"poly-variant" | #"test-chars" ]
+
+type person = {
+ name: string,
+ age: int,
+ role: role
+}
+
+type record = {
+  "field": string
+}
+
+let sum = (a, b) => a + b
+let sum2 = (a:int, b: int) => a + b</code></pre>
+
+<h2>Modules, JSX & Components</h2>
+<pre><code>%%raw(``)
+module Button = {
+  @react.component
+  let make = (~count: int) =>{
+    let times = switch count {
+    | 1 => "once"
+    | 2 => "twice"
+    | n => Belt.Int.toString(n) ++ " times"
+    }
+    let msg = "Click me " ++ times
+
+	&lt;button onClick={Js.log}>{msg->React.string}&lt;/button>;
+  }
+}
+
+@react.component
+let make = () => &lt;MyModule.Button count=1 /></code></pre>

plugins/autoloader/prism-autoloader.js

@@ -244,6 +244,7 @@
 		"rkt": "racket",
 		"razor": "cshtml",
 		"rpy": "renpy",
+		"res": "rescript",
 		"robot": "robotframework",
 		"rb": "ruby",
 		"sh-session": "shell-session",

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

@@ -213,6 +213,7 @@
 		"tsx": "React TSX",
 		"renpy": "Ren'py",
 		"rpy": "Ren'py",
+		"res": "ReScript",
 		"rest": "reST (reStructuredText)",
 		"robotframework": "Robot Framework",
 		"robot": "Robot Framework",