用于删除译稿中英文的脚本

deleteEnglishLine.js

/**
 * 用于删除翻译完的稿子中英文部分的脚本
 */
var resultFileName = 'r.txt';
var inputFileName = 'raw.txt';



var fs = require('fs');

function readLines(input, func) {
  var remaining = '';

  input.on('data', function(data) {
    remaining += data;
    var index = remaining.indexOf('\n');
    while (index > -1) {
      var line = remaining.substring(0, index);
      remaining = remaining.substring(index + 1);
      func(line);
      index = remaining.indexOf('\n');
    }
  });

  input.on('end', function() {
    if (remaining.length > 0) {
      func(remaining);
    }
  });

}

var result = [];
function func(data) {
	if (!/.*[a-z|A-Z]+.*/.test(data)) {
		result.push(data);

	    fs.writeFile(inputFileName, result.join('\n'), 'UTF-8', function (err) {
	    	if(err) {console.log(err);}
	    });
	}
}

var input = fs.createReadStream(resultFileName);
readLines(input, func);