add hw2

node_modules/highlight.js/lib/languages/ceylon.js

@@ -0,0 +1,82 @@
+/*
+Language: Ceylon
+Author: Lucas Werkmeister <mail@lucaswerkmeister.de>
+Website: https://ceylon-lang.org
+*/
+
+/** @type LanguageFn */
+function ceylon(hljs) {
+  // 2.3. Identifiers and keywords
+  const KEYWORDS =
+    'assembly module package import alias class interface object given value ' +
+    'assign void function new of extends satisfies abstracts in out return ' +
+    'break continue throw assert dynamic if else switch case for while try ' +
+    'catch finally then let this outer super is exists nonempty';
+  // 7.4.1 Declaration Modifiers
+  const DECLARATION_MODIFIERS =
+    'shared abstract formal default actual variable late native deprecated ' +
+    'final sealed annotation suppressWarnings small';
+  // 7.4.2 Documentation
+  const DOCUMENTATION =
+    'doc by license see throws tagged';
+  const SUBST = {
+    className: 'subst',
+    excludeBegin: true,
+    excludeEnd: true,
+    begin: /``/,
+    end: /``/,
+    keywords: KEYWORDS,
+    relevance: 10
+  };
+  const EXPRESSIONS = [
+    {
+      // verbatim string
+      className: 'string',
+      begin: '"""',
+      end: '"""',
+      relevance: 10
+    },
+    {
+      // string literal or template
+      className: 'string',
+      begin: '"',
+      end: '"',
+      contains: [SUBST]
+    },
+    {
+      // character literal
+      className: 'string',
+      begin: "'",
+      end: "'"
+    },
+    {
+      // numeric literal
+      className: 'number',
+      begin: '#[0-9a-fA-F_]+|\\$[01_]+|[0-9_]+(?:\\.[0-9_](?:[eE][+-]?\\d+)?)?[kMGTPmunpf]?',
+      relevance: 0
+    }
+  ];
+  SUBST.contains = EXPRESSIONS;
+
+  return {
+    name: 'Ceylon',
+    keywords: {
+      keyword: KEYWORDS + ' ' + DECLARATION_MODIFIERS,
+      meta: DOCUMENTATION
+    },
+    illegal: '\\$[^01]|#[^0-9a-fA-F]',
+    contains: [
+      hljs.C_LINE_COMMENT_MODE,
+      hljs.COMMENT('/\\*', '\\*/', {
+        contains: ['self']
+      }),
+      {
+        // compiler annotation
+        className: 'meta',
+        begin: '@[a-z]\\w*(?::"[^"]*")?'
+      }
+    ].concat(EXPRESSIONS)
+  };
+}
+
+module.exports = ceylon;