@rpidanny/pdf2md/lib/models/transformations/ToMarkdown.js

A PDF to Markdown Converter

// @flow

const Transformation = require('./Transformation')
const ParseResult = require('../ParseResult')

module.exports = class ToMarkdown extends Transformation {
  constructor () {
    super('To Markdown', 'String')
  }

  transform (parseResult /*: ParseResult */) /*: ParseResult */ {
    parseResult.pages.forEach(page => {
      var text = ''
      page.items.forEach(block => {
        // Concatenate all words in the same block, unless it's a Table of Contents block
        let concatText
        if (block.category === 'TOC') {
          concatText = block.text
        } else {
          concatText = block.text.replace(/(\r\n|\n|\r)/gm, ' ')
        }

        // Concatenate words that were previously broken up by newline
        if (block.category !== 'LIST') {
          concatText = concatText.split('- ').join('')
        }

        // Assume there are no code blocks in our documents
        if (block.category === 'CODE') {
          concatText = concatText.split('`').join('')
        }

        text += concatText + '\n\n'
      })

      page.items = [text]
    })
    return new ParseResult({
      ...parseResult,
    })
  }
}