网络上看到的，很长
var utils = utils || {};utils.isArray = function(value) { return Object.prototype.toString.apply(value) === '[object Array]';}utils.trim = function(value) { return value.trim ? value.trim() : value.replace(/^s+|s+$|/g,'');}// 解决IE不兼容console问题var console = console || {};console.log = console.log || function(){};console.error = console.error || function(){};// 使用字典存储摩斯码对照关系function Dictionary() { this.datasource = {}; this.rdatasource = {};}Dictionary.prototype.add = function(keys, values) { if(typeof keys === 'undefined' || typeof values === 'undefined') { console.error('Illegal arguments'); return ; } if(utils.isArray(keys) && utils.isArray(values)) { if(keys.length != values.length) { console.error('keys length not equals values length'); return ; } for(var i = 0; i < keys.length; i++) { this.datasource[keys[i]] = values[i]; } return ; } this.datasource[keys] = values;}Dictionary.prototype.reversal = function(){ var tempData = this.datasource; for(var i in tempData) { if(tempData.hasOwnProperty(i)) { this.rdatasource[tempData[i]] = i; } }}Dictionary.prototype.showAll = function(values) { var count = 0; console.log('-----------morse pre mapping-----------'); for(var i in values) { if(values.hasOwnProperty(i)) { count++; console.log(i + 't > ' + values[i]); } } console.log('total count: ' + count);}// morse pre libraryvar morse = (function(global){ var mpre = {}, r_special = /<w+>/g, r_find = /^<(w+)>$/; // store datas mapping mpre.mdatas = (function(){ var dictionaryDS = new Dictionary(); // initial mappping dictionaryDS.add( [ 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z', '1','2','3','4','5','6','7','8','9','0', 'AA','AR','AS','BK','BT','CT','SK','SOS', '.',':',',',';','?','=',"'",'/','!','-','_','"','(',')','$','&','@','+' ], [ // letter '.-','-...','-.-.','-..','.','..-.','--.','....','..','.---','-.-','.-..','--','-.','---','.--.','--.-','.-.','...','-','..-','...-','.--','-..-','-.--','--..', // number '.----','..---','...--','....-','.....','-....','--...','---..','----.','-----', // special charactor '.-.-','.-.-.','.-...','-...-.-','-...-','-.-.-','...-.-','...---...', // punctuation '.-.-.-','---...','--..--','-.-.-.','..--..','-...-','.----.','-..-.','-.-.--','-....-','..--.-','.-..-.','-.--.','-.--.-','...-..-','.-...','.--.-.','.-.-.' ] ); return dictionaryDS; }()); // error flag mpre.error_flag = false; // 将字符串转换为摩斯码 mpre.parse = function(values) { // console.log('input: ' + values); this.error_flag = false; var _datasource = this.mdatas.datasource, item = '', a_special = [], a_temp = [], a_value = [], count = 0, result = ''; values = values.toUpperCase(); a_special = values.match(r_special); a_temp = values.split(r_special); // 将用户输入的字符串转换成数组 for(var i=0; i<a_temp.length; i++) { item = a_temp[i]; if(item !== '') { // IE无法通过下标来索引字符串 if(!item[0]){ item = item.split(''); } for(var j=0; j<item.length; j++) { a_value[count++] = item[j]; } } // 当前字符串为<AS>形式，提取AS字符 if(i !== a_temp.length - 1){ a_value[count++] = a_special[i].match(r_find)[1]; } } // 将解析数组形式的用户输入值 for(var i=0; i<a_value.length; i++) { item = a_value[i]; if(item === ' ') { result += '/ '; } else if(typeof _datasource[item] === 'undefined') { this.error_flag = true; // console.error('Invalid characters in input.') result += '? '; }else { result += _datasource[item] + ' '; } } return utils.trim(result); } //将摩斯码转换成字符串 mpre.depre = function(values) { // console.log('input: ' + values); this.error_flag = false; this.mdatas.reversal(); var _rdatasource = this.mdatas.rdatasource, a_input = values.split(' '), result = '', item = '', c_result = ''; for(var i=0; i<a_input.length; i++) { item = a_input[i]; if(item === '/') { result += ' '; }else { c_result = _rdatasource[item]; if(typeof c_result === 'undefined') { this.error_flag = true; // console.error('Invalid characters in input.') result += '?'; } else { if(c_result.length > 1){ result += '<' + c_result + '>'; } else { result += c_result; } } } } return result; } return mpre;}(this));
