/*
Language: Python
*/

hljs.LANGUAGES['python'] = function(hljs) {
  var STRINGS = [
    {
      className: 'string',
      begin: '(u|b)?r?\'\'\'', end: '\'\'\'',
      relevance: 10
    },
    {
      className: 'string',
      begin: '(u|b)?r?"""', end: '"""',
      relevance: 10
    },
    {
      className: 'string',
      begin: '(u|r|ur)\'', end: '\'',
      contains: [hljs.BACKSLASH_ESCAPE],
      relevance: 10
    },
    {
      className: 'string',
      begin: '(u|r|ur)"', end: '"',
      contains: [hljs.BACKSLASH_ESCAPE],
      relevance: 10
    },
    {
      className: 'string',
      begin: '(b|br)\'', end: '\'',
      contains: [hljs.BACKSLASH_ESCAPE]
    },
    {
      className: 'string',
      begin: '(b|br)"', end: '"',
      contains: [hljs.BACKSLASH_ESCAPE]
    }
  ].concat([
    hljs.APOS_STRING_MODE,
    hljs.QUOTE_STRING_MODE
  ]);
  var TITLE = {
    className: 'title', begin: hljs.UNDERSCORE_IDENT_RE
  };
  var PARAMS = {
    className: 'params',
    begin: '\\(', end: '\\)',
    contains: ['self', hljs.C_NUMBER_MODE].concat(STRINGS)
  };
  var FUNC_CLASS_PROTO = {
    beginWithKeyword: true, end: ':',
    illegal: '[${=;\\n]',
    contains: [TITLE, PARAMS],
    relevance: 10
  };

  return {
    defaultMode: {
      keywords: {
        keyword:
          'and elif is global as in if from raise for except finally print import pass return ' +
          'exec else break not with class assert yield try while continue del or def lambda ' +
          'nonlocal|10',
        built_in:
          'None True False Ellipsis NotImplemented'
      },
      illegal: '(</|->|\\?)',
      contains: STRINGS.concat([
        hljs.HASH_COMMENT_MODE,
        hljs.inherit(FUNC_CLASS_PROTO, {className: 'function', keywords: 'def'}),
        hljs.inherit(FUNC_CLASS_PROTO, {className: 'class', keywords: 'class'}),
        hljs.C_NUMBER_MODE,
        {
          className: 'decorator',
          begin: '@', end: '$'
        },
        {
          begin: '\\b(print|exec)\\(' // don’t highlight keywords-turned-functions in Python 3
        }
      ])
    }
  };
}(hljs);