@atlaskit/editor-wikimarkup-transformer/dist/es2019/parser/tokenize/subscript.js

Wiki markup transformer for JIRA and Confluence

import { TokenType } from './';
import { hasAnyOfMarks, getSurroundingSymbols } from '../utils/text';
import { commonFormatter } from './common-formatter';
import { parseString } from '../text';
export const subscript = ({
  input,
  position,
  schema,
  context
}) => {
  /**
   * The following token types will be ignored in parsing
   * the content of a  mark
   */
  const ignoreTokenTypes = [TokenType.DOUBLE_DASH_SYMBOL, TokenType.TRIPLE_DASH_SYMBOL, TokenType.QUADRUPLE_DASH_SYMBOL, TokenType.ISSUE_KEY, TokenType.TABLE];
  // Adding subsup mark to all text
  const contentDecorator = n => {
    const mark = schema.marks.subsup.create({
      type: 'sub'
    });
    // We don't want to mix `code` mark with others
    if (n.type.name === 'text' && !hasAnyOfMarks(n, ['subsup', 'code'])) {
      return n.mark([...n.marks, mark]);
    }
    return n;
  };
  const rawContentProcessor = (raw, length) => {
    const content = parseString({
      schema,
      context,
      ignoreTokenTypes: ignoreTokenTypes,
      input: raw
    });
    const decoratedContent = content.map(contentDecorator);
    return {
      type: 'pmnode',
      nodes: decoratedContent,
      length
    };
  };
  const {
    openingSymbol,
    closingSymbol
  } = getSurroundingSymbols(input.substring(position), '~', '~');
  return commonFormatter(input, position, schema, {
    opening: openingSymbol,
    closing: closingSymbol,
    context,
    rawContentProcessor
  });
};