Add Reason support to Prism.js (#92)

lib/core/Prism.js

@@ -234,7 +234,11 @@ const Prism = {
         })
       );
     } else {
-      env.highlightedCode = Prism.highlight(env.code, env.grammar, env.language);
+      env.highlightedCode = Prism.highlight(
+        env.code,
+        env.grammar,
+        env.language
+      );
 
       Prism.hooks.run("before-insert", env);
 
@@ -256,7 +260,6 @@ const Prism = {
 
     const strarr = [text];
 
-
     if (grammar && grammar.rest) {
       const rest = grammar.rest;
       for (var token in rest) {
@@ -1099,6 +1102,20 @@ Prism.languages.yaml = {
   important: /[&*][\w]+/,
   punctuation: /---|[:[\]{}\-,|>?]|\.\.\./
 };
+(Prism.languages.reason = Prism.languages.extend("clike", {
+  comment: { pattern: /(^|[^\\])\/\*[\s\S]*?\*\//, lookbehind: !0 },
+  string: { pattern: /"(\\(?:\r\n|[\s\S])|[^\\\r\n"])*"/, greedy: !0 },
+  "class-name": /\b[A-Z]\w*/,
+  keyword: /\b(?:and|as|assert|begin|class|constraint|do|done|downto|else|end|exception|external|for|fun|function|functor|if|in|include|inherit|initializer|lazy|let|method|module|mutable|new|nonrec|object|of|open|or|private|rec|sig|struct|switch|then|to|try|type|val|virtual|when|while|with)\b/,
+  operator: /\.{3}|:[:=]|=(?:==?|>)?|<=?|>=?|[|^?'#!~`]|[+\-*\/]\.?|\b(?:mod|land|lor|lxor|lsl|lsr|asr)\b/
+})), Prism.languages.insertBefore("reason", "class-name", {
+  character: {
+    pattern: /'(?:\\x[\da-f]{2}|\\o[0-3][0-7][0-7]|\\\d{3}|\\.|[^'])'/,
+    alias: "string"
+  },
+  constructor: { pattern: /\b[A-Z]\w*\b(?!\s*\.)/, alias: "variable" },
+  label: { pattern: /\b[a-z]\w*(?=::)/, alias: "symbol" }
+}), delete Prism.languages.reason.function;
 
 const PrismComponent = React.createClass({
   statics: {