haml.js

/*
Language: HAML
Requires: ruby.js
Author: Dan Allen <dan.j.allen@gmail.com>
Website: http://haml.info
Category: template
*/

// TODO support filter tags like :javascript, support inline HTML
export default function(hljs) {
  return {
    name: 'HAML',
    case_insensitive: true,
    contains: [
      {
        className: 'meta',
        begin: '^!!!( (5|1\\.1|Strict|Frameset|Basic|Mobile|RDFa|XML\\b.*))?$',
        relevance: 10
      },
      // FIXME these comments should be allowed to span indented lines
      hljs.COMMENT(
        '^\\s*(!=#|=#|-#|/).*$',
        null,
        { relevance: 0 }
      ),
      {
        begin: '^\\s*(-|=|!=)(?!#)',
        end: /$/,
        subLanguage: 'ruby',
        excludeBegin: true,
        excludeEnd: true
      },
      {
        className: 'tag',
        begin: '^\\s*%',
        contains: [
          {
            className: 'selector-tag',
            begin: '\\w+'
          },
          {
            className: 'selector-id',
            begin: '#[\\w-]+'
          },
          {
            className: 'selector-class',
            begin: '\\.[\\w-]+'
          },
          {
            begin: /\{\s*/,
            end: /\s*\}/,
            contains: [
              {
                begin: ':\\w+\\s*=>',
                end: ',\\s+',
                returnBegin: true,
                endsWithParent: true,
                contains: [
                  {
                    className: 'attr',
                    begin: ':\\w+'
                  },
                  hljs.APOS_STRING_MODE,
                  hljs.QUOTE_STRING_MODE,
                  {
                    begin: '\\w+',
                    relevance: 0
                  }
                ]
              }
            ]
          },
          {
            begin: '\\(\\s*',
            end: '\\s*\\)',
            excludeEnd: true,
            contains: [
              {
                begin: '\\w+\\s*=',
                end: '\\s+',
                returnBegin: true,
                endsWithParent: true,
                contains: [
                  {
                    className: 'attr',
                    begin: '\\w+',
                    relevance: 0
                  },
                  hljs.APOS_STRING_MODE,
                  hljs.QUOTE_STRING_MODE,
                  {
                    begin: '\\w+',
                    relevance: 0
                  }
                ]
              }
            ]
          }
        ]
      },
      { begin: '^\\s*[=~]\\s*' },
      {
        begin: /#\{/,
        end: /\}/,
        subLanguage: 'ruby',
        excludeBegin: true,
        excludeEnd: true
      }
    ]
  };
}