charlike/templates/node_modules/conventional-commits-parser/lib/regex.js

Small, fast, simple and streaming project scaffolder for myself, but not only. Supports hundreds of template engines through the @JSTransformers API or if you want custom `render` function passed through options

'use strict';

var reNomatch = /(?!.*)/;

function join(array, joiner) {
  return array
    .map(function(val) {
      return val.trim();
    })
    .filter(function(val) {
      return val.length;
    })
    .join(joiner);
}

function getNotesRegex(noteKeywords) {
  if (!noteKeywords) {
    return reNomatch;
  }

  return new RegExp('^[\\s|*]*(' + join(noteKeywords, '|') + ')[:\\s]+(.*)', 'i');
}

function getReferencePartsRegex(issuePrefixes) {
  if (!issuePrefixes) {
    return reNomatch;
  }

  return new RegExp('(?:.*?)??\\s*([\\w-\\.\\/]*?)??(' + join(issuePrefixes, '|') + ')([\\w-]*\\d+)', 'gi');
}

function getReferencesRegex(referenceActions) {
  if (!referenceActions) {
    // matches everything
    return /()(.+)/gi;
  }

  var joinedKeywords = join(referenceActions, '|');
  return new RegExp('(' + joinedKeywords + ')(?:\\s+(.*?))(?=(?:' + joinedKeywords + ')|$)', 'gi');
}

module.exports = function(options) {
  options = options || {};
  var reNotes = getNotesRegex(options.noteKeywords);
  var reReferenceParts = getReferencePartsRegex(options.issuePrefixes);
  var reReferences = getReferencesRegex(options.referenceActions);

  return {
    notes: reNotes,
    referenceParts: reReferenceParts,
    references: reReferences,
    mentions: /@([\w-]+)/g
  };
};