@atlaskit/editor-wikimarkup-transformer/dist/es2019/encoder/nodes/text.js

Wiki markup transformer for JIRA and Confluence

import { macroKeywordTokenMap } from '../../parser/tokenize/keyword';
import { code } from '../marks/code';
import { textColor } from '../marks/color';
import { em } from '../marks/em';
import { link } from '../marks/link';
import { strike } from '../marks/strike';
import { strong } from '../marks/strong';
import { subsup } from '../marks/subsup';
import { underline } from '../marks/underline';

/**
 * The order of the mapping matters.
 * For example, textColor will be a macro {color} so
 * we want to process other marks before it.
 */
const markEncoderMapping = new Map([['em', em], ['strike', strike], ['strong', strong], ['subsup', subsup], ['underline', underline], ['textColor', textColor], ['link', link], ['code', code]]);

/**
 * ADFEXP-131: Improved logic for escaping metacharacters "[" and "!"
 * Before this change, any instance of "[" and "!" was being escaped
 * "[" is used for mentions
 * "!" is used for media
 */
const MENTION_ESCAPE_PATTERN = '(\\[~)'; // Matches pattern like [~
const MEDIA_ESCAPE_PATTERN = '(![^ !]+)(!)'; // Matches non space content between two consecutive "!" e.g. !filename.txt!
const MEDIA_GROUP_ESCAPE_PATTERN = '(\\[\\^[^ ]+)(\\])'; // Matches non space content between two consecutive "[^" "]" e.g. [^filename.txt]

/**
 * Checks if the node's content needs to be escaped before continuing processing.
 * Currently, the `code` mark and `codeBlock` nodes handle their own escaping, and
 * therefore, should not be escaped here.
 *
 * @param node the current node to encode
 * @param parent the parent node, if exist
 * @returns true if the node should have its text escaped when encoding to wikimarkup.
 */
const isEscapeNeeded = (node, parent) => {
  return !(parent && parent.type.name === 'codeBlock' || node.marks.find(m => m.type.name === 'code') !== undefined);
};
/**
 * ESS-2569: Removing the backsalshes from the regex
 * ADFEXP-131: Improved logic for escaping metacharacters "[" and "!"
 */
function escapingWikiFormatter(text) {
  const pattern = [MENTION_ESCAPE_PATTERN,
  // eslint-disable-next-line @atlassian/perf-linting/no-expensive-split-replace -- Ignored via go/ees017 (to be fixed)
  ...macroKeywordTokenMap.map(macro => `(${macro.regex.source.replace('^', '')})`)].join('|');
  return text
  // Ignored via go/ees005
  // eslint-disable-next-line require-unicode-regexp
  .replace(new RegExp(pattern, 'g'), '\\$&')
  // Ignored via go/ees005
  // eslint-disable-next-line require-unicode-regexp
  .replace(new RegExp(MEDIA_ESCAPE_PATTERN, 'g'), '\\$1\\$2') // Extra step required for media as currently both ends need to be escaped e.q. !filename.txt!
  // Ignored via go/ees005
  // eslint-disable-next-line require-unicode-regexp
  .replace(new RegExp(MEDIA_GROUP_ESCAPE_PATTERN, 'g'), '\\$1\\$2');
}
export const text = (node, {
  parent
} = {}) => {
  // Ignored via go/ees005
  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
  // Ignored via go/ees005
  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
  let result = isEscapeNeeded(node, parent) ? escapingWikiFormatter(node.text) : node.text;
  markEncoderMapping.forEach((encoder, markName) => {
    const mark = node.marks.find(m => m.type.name === markName);
    if (mark) {
      result = encoder(result, mark.attrs);
    }
  });
  return result;
};