Toolbox/res/highlight/languages/xml.js

/*! `xml` grammar compiled for Highlight.js 11.10.0 */
  (function(){
    var hljsGrammar = (function () {
  'use strict';

  /*
  Language: HTML, XML
  Website: https://www.w3.org/XML/
  Category: common, web
  Audit: 2020
  */

  /** @type LanguageFn */
  function xml(hljs) {
    const regex = hljs.regex;
    // XML names can have the following additional letters: https://www.w3.org/TR/xml/#NT-NameChar
    // OTHER_NAME_CHARS = /[:\-.0-9\u00B7\u0300-\u036F\u203F-\u2040]/;
    // Element names start with NAME_START_CHAR followed by optional other Unicode letters, ASCII digits, hyphens, underscores, and periods
    // const TAG_NAME_RE = regex.concat(/[A-Z_a-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]/, regex.optional(/[A-Z_a-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\-.0-9\u00B7\u0300-\u036F\u203F-\u2040]*:/), /[A-Z_a-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\-.0-9\u00B7\u0300-\u036F\u203F-\u2040]*/);;
    // const XML_IDENT_RE = /[A-Z_a-z:\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\-.0-9\u00B7\u0300-\u036F\u203F-\u2040]+/;
    // const TAG_NAME_RE = regex.concat(/[A-Z_a-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]/, regex.optional(/[A-Z_a-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\-.0-9\u00B7\u0300-\u036F\u203F-\u2040]*:/), /[A-Z_a-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\-.0-9\u00B7\u0300-\u036F\u203F-\u2040]*/);
    // however, to cater for performance and more Unicode support rely simply on the Unicode letter class
    const TAG_NAME_RE = regex.concat(/[\p{L}_]/u, regex.optional(/[\p{L}0-9_.-]*:/u), /[\p{L}0-9_.-]*/u);
    const XML_IDENT_RE = /[\p{L}0-9._:-]+/u;
    const XML_ENTITIES = {
      className: 'symbol',
      begin: /&[a-z]+;|&#[0-9]+;|&#x[a-f0-9]+;/
    };
    const XML_META_KEYWORDS = {
      begin: /\s/,
      contains: [
        {
          className: 'keyword',
          begin: /#?[a-z_][a-z1-9_-]+/,
          illegal: /\n/
        }
      ]
    };
    const XML_META_PAR_KEYWORDS = hljs.inherit(XML_META_KEYWORDS, {
      begin: /\(/,
      end: /\)/
    });
    const APOS_META_STRING_MODE = hljs.inherit(hljs.APOS_STRING_MODE, { className: 'string' });
    const QUOTE_META_STRING_MODE = hljs.inherit(hljs.QUOTE_STRING_MODE, { className: 'string' });
    const TAG_INTERNALS = {
      endsWithParent: true,
      illegal: /</,
      relevance: 0,
      contains: [
        {
          className: 'attr',
          begin: XML_IDENT_RE,
          relevance: 0
        },
        {
          begin: /=\s*/,
          relevance: 0,
          contains: [
            {
              className: 'string',
              endsParent: true,
              variants: [
                {
                  begin: /"/,
                  end: /"/,
                  contains: [ XML_ENTITIES ]
                },
                {
                  begin: /'/,
                  end: /'/,
                  contains: [ XML_ENTITIES ]
                },
                { begin: /[^\s"'=<>`]+/ }
              ]
            }
          ]
        }
      ]
    };
    return {
      name: 'HTML, XML',
      aliases: [
        'html',
        'xhtml',
        'rss',
        'atom',
        'xjb',
        'xsd',
        'xsl',
        'plist',
        'wsf',
        'svg'
      ],
      case_insensitive: true,
      unicodeRegex: true,
      contains: [
        {
          className: 'meta',
          begin: /<![a-z]/,
          end: />/,
          relevance: 10,
          contains: [
            XML_META_KEYWORDS,
            QUOTE_META_STRING_MODE,
            APOS_META_STRING_MODE,
            XML_META_PAR_KEYWORDS,
            {
              begin: /\[/,
              end: /\]/,
              contains: [
                {
                  className: 'meta',
                  begin: /<![a-z]/,
                  end: />/,
                  contains: [
                    XML_META_KEYWORDS,
                    XML_META_PAR_KEYWORDS,
                    QUOTE_META_STRING_MODE,
                    APOS_META_STRING_MODE
                  ]
                }
              ]
            }
          ]
        },
        hljs.COMMENT(
          /<!--/,
          /-->/,
          { relevance: 10 }
        ),
        {
          begin: /<!\[CDATA\[/,
          end: /\]\]>/,
          relevance: 10
        },
        XML_ENTITIES,
        // xml processing instructions
        {
          className: 'meta',
          end: /\?>/,
          variants: [
            {
              begin: /<\?xml/,
              relevance: 10,
              contains: [
                QUOTE_META_STRING_MODE
              ]
            },
            {
              begin: /<\?[a-z][a-z0-9]+/,
            }
          ]

        },
        {
          className: 'tag',
          /*
          The lookahead pattern (?=...) ensures that 'begin' only matches
          '<style' as a single word, followed by a whitespace or an
          ending bracket.
          */
          begin: /<style(?=\s|>)/,
          end: />/,
          keywords: { name: 'style' },
          contains: [ TAG_INTERNALS ],
          starts: {
            end: /<\/style>/,
            returnEnd: true,
            subLanguage: [
              'css',
              'xml'
            ]
          }
        },
        {
          className: 'tag',
          // See the comment in the <style tag about the lookahead pattern
          begin: /<script(?=\s|>)/,
          end: />/,
          keywords: { name: 'script' },
          contains: [ TAG_INTERNALS ],
          starts: {
            end: /<\/script>/,
            returnEnd: true,
            subLanguage: [
              'javascript',
              'handlebars',
              'xml'
            ]
          }
        },
        // we need this for now for jSX
        {
          className: 'tag',
          begin: /<>|<\/>/
        },
        // open tag
        {
          className: 'tag',
          begin: regex.concat(
            /</,
            regex.lookahead(regex.concat(
              TAG_NAME_RE,
              // <tag/>
              // <tag>
              // <tag ...
              regex.either(/\/>/, />/, /\s/)
            ))
          ),
          end: /\/?>/,
          contains: [
            {
              className: 'name',
              begin: TAG_NAME_RE,
              relevance: 0,
              starts: TAG_INTERNALS
            }
          ]
        },
        // close tag
        {
          className: 'tag',
          begin: regex.concat(
            /<\//,
            regex.lookahead(regex.concat(
              TAG_NAME_RE, />/
            ))
          ),
          contains: [
            {
              className: 'name',
              begin: TAG_NAME_RE,
              relevance: 0
            },
            {
              begin: />/,
              relevance: 0,
              endsParent: true
            }
          ]
        }
      ]
    };
  }

  return xml;

})();

    hljs.registerLanguage('xml', hljsGrammar);
  })();