refractor/lang/rest.js

Lightweight, robust, elegant virtual syntax highlighting using Prism

'use strict';

module.exports = rest;
rest.displayName = 'rest';
rest.aliases = [];
function rest(Prism) {
  Prism.languages.rest = {
    table: [
      {
        pattern: /(\s*)(?:\+[=-]+)+\+(?:\r?\n|\r)(?:\1(?:[+|].+)+[+|](?:\r?\n|\r))+\1(?:\+[=-]+)+\+/,
        lookbehind: true,
        inside: {
          punctuation: /\||(?:\+[=-]+)+\+/
        }
      },
      {
        pattern: /(\s*)(?:=+ +)+=+(?:(?:\r?\n|\r)\1.+)+(?:\r?\n|\r)\1(?:=+ +)+=+(?=(?:\r?\n|\r){2}|\s*$)/,
        lookbehind: true,
        inside: {
          punctuation: /[=-]+/
        }
      }
    ],
    // Directive-like patterns
    'substitution-def': {
      pattern: /(^\s*\.\. )\|(?:[^|\s](?:[^|]*[^|\s])?)\| [^:]+::/m,
      lookbehind: true,
      inside: {
        substitution: {
          pattern: /^\|(?:[^|\s]|[^|\s][^|]*[^|\s])\|/,
          alias: 'attr-value',
          inside: {
            punctuation: /^\||\|$/
          }
        },
        directive: {
          pattern: /( +)[^:]+::/,
          lookbehind: true,
          alias: 'function',
          inside: {
            punctuation: /::$/
          }
        }
      }
    },
    'link-target': [
      {
        pattern: /(^\s*\.\. )\[[^\]]+\]/m,
        lookbehind: true,
        alias: 'string',
        inside: {
          punctuation: /^\[|\]$/
        }
      },
      {
        pattern: /(^\s*\.\. )_(?:`[^`]+`|(?:[^:\\]|\\.)+):/m,
        lookbehind: true,
        alias: 'string',
        inside: {
          punctuation: /^_|:$/
        }
      }
    ],
    directive: {
      pattern: /(^\s*\.\. )[^:]+::/m,
      lookbehind: true,
      alias: 'function',
      inside: {
        punctuation: /::$/
      }
    },
    comment: {
      // The two alternatives try to prevent highlighting of blank comments
      pattern: /(^\s*\.\.)(?:(?: .+)?(?:(?:\r?\n|\r).+)+| .+)(?=(?:\r?\n|\r){2}|$)/m,
      lookbehind: true
    },
    title: [
      // Overlined and underlined
      {
        pattern: /^(([!"#$%&'()*+,\-.\/:;<=>?@\[\\\]^_`{|}~])\2+)(?:\r?\n|\r).+(?:\r?\n|\r)\1$/m,
        inside: {
          punctuation: /^[!"#$%&'()*+,\-.\/:;<=>?@\[\\\]^_`{|}~]+|[!"#$%&'()*+,\-.\/:;<=>?@\[\\\]^_`{|}~]+$/,
          important: /.+/
        }
      },
      // Underlined only
      {
        pattern: /(^|(?:\r?\n|\r){2}).+(?:\r?\n|\r)([!"#$%&'()*+,\-.\/:;<=>?@\[\\\]^_`{|}~])\2+(?=\r?\n|\r|$)/,
        lookbehind: true,
        inside: {
          punctuation: /[!"#$%&'()*+,\-.\/:;<=>?@\[\\\]^_`{|}~]+$/,
          important: /.+/
        }
      }
    ],
    hr: {
      pattern: /((?:\r?\n|\r){2})([!"#$%&'()*+,\-.\/:;<=>?@\[\\\]^_`{|}~])\2{3,}(?=(?:\r?\n|\r){2})/,
      lookbehind: true,
      alias: 'punctuation'
    },
    field: {
      pattern: /(^\s*):[^:\r\n]+:(?= )/m,
      lookbehind: true,
      alias: 'attr-name'
    },
    'command-line-option': {
      pattern: /(^\s*)(?:[+-][a-z\d]|(?:--|\/)[a-z\d-]+)(?:[ =](?:[a-z][\w-]*|<[^<>]+>))?(?:, (?:[+-][a-z\d]|(?:--|\/)[a-z\d-]+)(?:[ =](?:[a-z][\w-]*|<[^<>]+>))?)*(?=(?:\r?\n|\r)? {2,}\S)/im,
      lookbehind: true,
      alias: 'symbol'
    },
    'literal-block': {
      pattern: /::(?:\r?\n|\r){2}([ \t]+).+(?:(?:\r?\n|\r)\1.+)*/,
      inside: {
        'literal-block-punctuation': {
          pattern: /^::/,
          alias: 'punctuation'
        }
      }
    },
    'quoted-literal-block': {
      pattern: /::(?:\r?\n|\r){2}([!"#$%&'()*+,\-.\/:;<=>?@\[\\\]^_`{|}~]).*(?:(?:\r?\n|\r)\1.*)*/,
      inside: {
        'literal-block-punctuation': {
          pattern: /^(?:::|([!"#$%&'()*+,\-.\/:;<=>?@\[\\\]^_`{|}~])\1*)/m,
          alias: 'punctuation'
        }
      }
    },
    'list-bullet': {
      pattern: /(^\s*)(?:[*+\-•‣⁃]|\(?(?:\d+|[a-z]|[ivxdclm]+)\)|(?:\d+|[a-z]|[ivxdclm]+)\.)(?= )/im,
      lookbehind: true,
      alias: 'punctuation'
    },
    'doctest-block': {
      pattern: /(^\s*)>>> .+(?:(?:\r?\n|\r).+)*/m,
      lookbehind: true,
      inside: {
        punctuation: /^>>>/
      }
    },
    inline: [
      {
        pattern: /(^|[\s\-:\/'"<(\[{])(?::[^:]+:`.*?`|`.*?`:[^:]+:|(\*\*?|``?|\|)(?!\s).*?[^\s]\2(?=[\s\-.,:;!?\\\/'")\]}]|$))/m,
        lookbehind: true,
        inside: {
          bold: {
            pattern: /(^\*\*).+(?=\*\*$)/,
            lookbehind: true
          },
          italic: {
            pattern: /(^\*).+(?=\*$)/,
            lookbehind: true
          },
          'inline-literal': {
            pattern: /(^``).+(?=``$)/,
            lookbehind: true,
            alias: 'symbol'
          },
          role: {
            pattern: /^:[^:]+:|:[^:]+:$/,
            alias: 'function',
            inside: {
              punctuation: /^:|:$/
            }
          },
          'interpreted-text': {
            pattern: /(^`).+(?=`$)/,
            lookbehind: true,
            alias: 'attr-value'
          },
          substitution: {
            pattern: /(^\|).+(?=\|$)/,
            lookbehind: true,
            alias: 'attr-value'
          },
          punctuation: /\*\*?|``?|\|/
        }
      }
    ],
    link: [
      {
        pattern: /\[[^\]]+\]_(?=[\s\-.,:;!?\\\/'")\]}]|$)/,
        alias: 'string',
        inside: {
          punctuation: /^\[|\]_$/
        }
      },
      {
        pattern: /(?:\b[a-z\d](?:[_.:+]?[a-z\d]+)*_?_|`[^`]+`_?_|_`[^`]+`)(?=[\s\-.,:;!?\\\/'")\]}]|$)/i,
        alias: 'string',
        inside: {
          punctuation: /^_?`|`$|`?_?_$/
        }
      }
    ],
    // Line block start,
    // quote attribution,
    // explicit markup start,
    // and anonymous hyperlink target shortcut (__)
    punctuation: {
      pattern: /(^\s*)(?:\|(?= |$)|(?:---?|—|\.\.|__)(?= )|\.\.$)/m,
      lookbehind: true
    }
  };
}