Node.js readline丢失最后一行文件？ [英] Node.js readline missing last line of file?

问题描述

我尝试在Node.js下异步和逐行读取文本文件。我有以下CoffeeScript代码：

I'm trying to read a text file asynchronously and line-by-line under Node.js. I have the following CoffeeScript code:

readline  = require 'readline'
fs        = require 'fs'

#--------------------------------------------------------------------
lines_of = ( route, handler ) ->
  #..................................................................
  stream = readline.createInterface
    input:    fs.createReadStream route
    output:   process.stdout
    terminal: false
  #..................................................................
  stream.on 'close', ->
    handler null, null
  #..................................................................
  stream.on 'error', ( error ) ->
    handler error
  #..................................................................
  stream.on 'line', ( line ) ->
    handler null, line

除非最后一行文件不报告除非它由换行符终止。是否有任何方法来补救（除非手动添加换行符）？

It works fine except the very last line of files is never reported unless it is terminated by a newline. is there any way to remedy this (except, of course, adding the newline manually)?

推荐答案

c $ c> fs 模块，并分割 \\\
chars上的文件内容以确定行结束的位置。

You should use the fs module for this, and split the file contents on \n chars to determine where lines end.

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