chore: add prismjs for syntax highlighting

1 files changed, 85 insertions, 0 deletions

diff --git a/public/prism/prism-javadoclike.js b/public/prism/prism-javadoclike.js
new file mode 100644
index 0000000..e427427
--- /dev/null
+++ b/public/prism/prism-javadoclike.js
@@ -0,0 +1,85 @@
+(function (Prism) {
+  var javaDocLike = (Prism.languages.javadoclike = {
+    parameter: {
+      pattern: /(^[\t ]*(?:\/{3}|\*|\/\*\*)\s*@(?:arg|arguments|param)\s+)\w+/m,
+      lookbehind: true,
+    },
+    keyword: {
+      // keywords are the first word in a line preceded be an `@` or surrounded by curly braces.
+      // @word, {@word}
+      pattern: /(^[\t ]*(?:\/{3}|\*|\/\*\*)\s*|\{)@[a-z][a-zA-Z-]+\b/m,
+      lookbehind: true,
+    },
+    punctuation: /[{}]/,
+  });
+
+  /**
+   * Adds doc comment support to the given language and calls a given callback on each doc comment pattern.
+   *
+   * @param {string} lang the language add doc comment support to.
+   * @param {(pattern: {inside: {rest: undefined}}) => void} callback the function called with each doc comment pattern as argument.
+   */
+  function docCommentSupport(lang, callback) {
+    var tokenName = 'doc-comment';
+
+    var grammar = Prism.languages[lang];
+    if (!grammar) {
+      return;
+    }
+    var token = grammar[tokenName];
+
+    if (!token) {
+      // add doc comment: /** */
+      var definition = {};
+      definition[tokenName] = {
+        pattern: /(^|[^\\])\/\*\*[^/][\s\S]*?(?:\*\/|$)/,
+        lookbehind: true,
+        alias: 'comment',
+      };
+
+      grammar = Prism.languages.insertBefore(lang, 'comment', definition);
+      token = grammar[tokenName];
+    }
+
+    if (token instanceof RegExp) {
+      // convert regex to object
+      token = grammar[tokenName] = { pattern: token };
+    }
+
+    if (Array.isArray(token)) {
+      for (var i = 0, l = token.length; i < l; i++) {
+        if (token[i] instanceof RegExp) {
+          token[i] = { pattern: token[i] };
+        }
+        callback(token[i]);
+      }
+    } else {
+      callback(token);
+    }
+  }
+
+  /**
+   * Adds doc-comment support to the given languages for the given documentation language.
+   *
+   * @param {string[]|string} languages
+   * @param {Object} docLanguage
+   */
+  function addSupport(languages, docLanguage) {
+    if (typeof languages === 'string') {
+      languages = [languages];
+    }
+
+    languages.forEach(function (lang) {
+      docCommentSupport(lang, function (pattern) {
+        if (!pattern.inside) {
+          pattern.inside = {};
+        }
+        pattern.inside.rest = docLanguage;
+      });
+    });
+  }
+
+  Object.defineProperty(javaDocLike, 'addSupport', { value: addSupport });
+
+  javaDocLike.addSupport(['java', 'javascript', 'php'], javaDocLike);
+})(Prism);