refractor/lang/puppet.js

Lightweight, robust, elegant virtual syntax highlighting using Prism

'use strict';

module.exports = puppet;
puppet.displayName = 'puppet';
puppet.aliases = [];
function puppet(Prism) {
  (function(Prism) {
    Prism.languages.puppet = {
      heredoc: [
        // Matches the content of a quoted heredoc string (subject to interpolation)
        {
          pattern: /(@\("([^"\r\n\/):]+)"(?:\/[nrts$uL]*)?\).*(?:\r?\n|\r))(?:.*(?:\r?\n|\r))*?[ \t]*\|?[ \t]*-?[ \t]*\2/,
          lookbehind: true,
          alias: 'string',
          inside: {
            // Matches the end tag
            punctuation: /(?=\S).*\S(?= *$)/
            // See interpolation below
          }
        },
        // Matches the content of an unquoted heredoc string (no interpolation)
        {
          pattern: /(@\(([^"\r\n\/):]+)(?:\/[nrts$uL]*)?\).*(?:\r?\n|\r))(?:.*(?:\r?\n|\r))*?[ \t]*\|?[ \t]*-?[ \t]*\2/,
          lookbehind: true,
          alias: 'string',
          inside: {
            // Matches the end tag
            punctuation: /(?=\S).*\S(?= *$)/
          }
        },
        // Matches the start tag of heredoc strings
        {
          pattern: /@\("?(?:[^"\r\n\/):]+)"?(?:\/[nrts$uL]*)?\)/,
          alias: 'string',
          inside: {
            punctuation: {
              pattern: /(\().+?(?=\))/,
              lookbehind: true
            }
          }
        }
      ],
      'multiline-comment': {
        pattern: /(^|[^\\])\/\*[\s\S]*?\*\//,
        lookbehind: true,
        alias: 'comment'
      },
      regex: {
        // Must be prefixed with the keyword "node" or a non-word char
        pattern: /((?:\bnode\s+|[~=\(\[\{,]\s*|[=+]>\s*|^\s*))\/(?:[^\/\\]|\\[\s\S])+\/(?:[imx]+\b|\B)/,
        lookbehind: true,
        inside: {
          // Extended regexes must have the x flag. They can contain single-line comments.
          'extended-regex': {
            pattern: /^\/(?:[^\/\\]|\\[\s\S])+\/[im]*x[im]*$/,
            inside: {
              comment: /#.*/
            }
          }
        }
      },
      comment: {
        pattern: /(^|[^\\])#.*/,
        lookbehind: true
      },
      string: {
        // Allow for one nested level of double quotes inside interpolation
        pattern: /(["'])(?:\$\{(?:[^'"}]|(["'])(?:(?!\2)[^\\]|\\[\s\S])*\2)+\}|(?!\1)[^\\]|\\[\s\S])*\1/,
        inside: {
          'double-quoted': {
            pattern: /^"[\s\S]*"$/,
            inside: {
              // See interpolation below
            }
          }
        }
      },
      variable: {
        pattern: /\$(?:::)?\w+(?:::\w+)*/,
        inside: {
          punctuation: /::/
        }
      },
      'attr-name': /(?:\w+|\*)(?=\s*=>)/,
      function: [
        {
          pattern: /(\.)(?!\d)\w+/,
          lookbehind: true
        },
        /\b(?:contain|debug|err|fail|include|info|notice|realize|require|tag|warning)\b|\b(?!\d)\w+(?=\()/
      ],
      number: /\b(?:0x[a-f\d]+|\d+(?:\.\d+)?(?:e-?\d+)?)\b/i,
      boolean: /\b(?:true|false)\b/,
      // Includes words reserved for future use
      keyword: /\b(?:application|attr|case|class|consumes|default|define|else|elsif|function|if|import|inherits|node|private|produces|type|undef|unless)\b/,
      datatype: {
        pattern: /\b(?:Any|Array|Boolean|Callable|Catalogentry|Class|Collection|Data|Default|Enum|Float|Hash|Integer|NotUndef|Numeric|Optional|Pattern|Regexp|Resource|Runtime|Scalar|String|Struct|Tuple|Type|Undef|Variant)\b/,
        alias: 'symbol'
      },
      operator: /=[=~>]?|![=~]?|<(?:<\|?|[=~|-])?|>[>=]?|->?|~>|\|>?>?|[*\/%+?]|\b(?:and|in|or)\b/,
      punctuation: /[\[\]{}().,;]|:+/
    };
    var interpolation = [
      {
        // Allow for one nested level of braces inside interpolation
        pattern: /(^|[^\\])\$\{(?:[^'"{}]|\{[^}]*\}|(["'])(?:(?!\2)[^\\]|\\[\s\S])*\2)+\}/,
        lookbehind: true,
        inside: {
          'short-variable': {
            // Negative look-ahead prevent wrong highlighting of functions
            pattern: /(^\$\{)(?!\w+\()(?:::)?\w+(?:::\w+)*/,
            lookbehind: true,
            alias: 'variable',
            inside: {
              punctuation: /::/
            }
          },
          delimiter: {
            pattern: /^\$/,
            alias: 'variable'
          },
          rest: Prism.util.clone(Prism.languages.puppet)
        }
      },
      {
        pattern: /(^|[^\\])\$(?:::)?\w+(?:::\w+)*/,
        lookbehind: true,
        alias: 'variable',
        inside: {
          punctuation: /::/
        }
      }
    ];
    Prism.languages.puppet['heredoc'][0].inside.interpolation = interpolation;
    Prism.languages.puppet['string'].inside[
      'double-quoted'
    ].inside.interpolation = interpolation;
  })(Prism);
}