# All files index.js

100% Statements 26/26
100% Branches 6/6
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100% Lines 26/26

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    'use strict'

    const fs = require('fs')
    const stream = require('stream')

    const parse = require('./parser')

    const stringify = require('./stringifier')

    module.exports = parse

    module.exports.stringify = stringify

    /* ------- Transform stream ------- */

    class Parser extends stream.Transform {
      constructor (opts) {
        opts = opts || {}
        super({ objectMode: true })
        this._extract = parse.mkextract(opts)
      }

      _transform (data, encoding, done) {
        let block
        const lines = data.toString().split(/\n/)

        while (lines.length) {
          block = this._extract(lines.shift())
          if (block) {
            this.push(block)
          }
        }

        done()
      }
    }

    module.exports.stream = function stream (opts) {
      return new Parser(opts)
    }

    /* ------- File parser ------- */

    module.exports.file = function file (file_path, done) {
      let opts = {}
      const collected = []

      if (arguments.length === 3) {
        opts = done
        done = arguments[2]
      }

      return fs.createReadStream(file_path, { encoding: 'utf8' })
        .on('error', done)
        .pipe(new Parser(opts))
        .on('error', done)
        .on('data', function (data) {
          collected.push(data)
        })
        .on('finish', function () {
          done(null, collected)
        })
    }