text: function vala(hljs) {
    return {
      keywords: {
        keyword:
          // Value types
          'char uchar unichar int uint long ulong short ushort int8 int16 int32 int64 uint8 ' +
          'uint16 uint32 uint64 float double bool struct enum string void ' +
          // Reference types
          'weak unowned owned ' +
          // Modifiers
          'async signal static abstract interface override virtual delegate ' +
          // Control Structures
          'if while do for foreach else switch case break default return try catch ' +
          // Visibility
          'public private protected internal ' +
          // Other
          'using new this get set const stdout stdin stderr var',
        built_in:
          'DBus GLib CCode Gee Object Gtk Posix',
        literal:
          'false true null'
      },
      contains: [
        {
          className: 'class',
          beginKeywords: 'class interface namespace', end: '{', excludeEnd: true,
          illegal: '[^,:\\n\\s\\.]',
          contains: [
            hljs.UNDERSCORE_TITLE_MODE
          ]
        },
        hljs.C_LINE_COMMENT_MODE,
        hljs.C_BLOCK_COMMENT_MODE,
        {
          className: 'string',
          begin: '"""', end: '"""',
          relevance: 5
        },
        hljs.APOS_STRING_MODE,
        hljs.QUOTE_STRING_MODE,
        hljs.C_NUMBER_MODE,
        {
          className: 'meta',
          begin: '^#', end: '$',
          relevance: 2
        }
      ]
    };
  };
  