修复ueditor百度编辑器在IE8下shCore.js报错'undefined'错误的问题
Posted on 2012-05-29 17:02 逍遥蓝枫叶 阅读(760) 评论(0) 编辑 收藏 举报ueditor在IE8下点击任意文本框报脚本错误
错误问题:
在IE8下出现脚本错误 'undefined'为空或不是对象 的问题
出现问题的文件为:
shCore.js
行数:299行
文件路径:ueditor\third-party\SyntaxHighlighter\shCore.js
报错的代码为:
299行
real.replace.call(str.toString().slice(match.index), r2, function () { for (var i = 1; i < arguments.length - 2; i++) { if (arguments[i] === undefined) match[i] = undefined; } });
错误原因为:299行中的
str.toString().slice(match.index)
传递进来的str变量未经过判断
在函数开始处增加
if(str!==undefined) 既可以修复该问题
RegExp.prototype.exec = function (str) { if(str!==undefined){ var match = real.exec.apply(this, arguments), name, r2; if (match) { // Fix browsers whose `exec` methods don't consistently return `undefined` for // nonparticipating capturing groups if (!compliantExecNpcg && match.length > 1 && indexOf(match, "") > -1) { r2 = RegExp(this.source, real.replace.call(getNativeFlags(this), "g", "")); // Using `str.slice(match.index)` rather than `match[0]` in case lookahead allowed // matching due to characters outside the match real.replace.call(str.toString().slice(match.index), r2, function () { for (var i = 1; i < arguments.length - 2; i++) { if (arguments[i] === undefined) match[i] = undefined; } }); } // Attach named capture properties if (this._xregexp && this._xregexp.captureNames) { for (var i = 1; i < match.length; i++) { name = this._xregexp.captureNames[i - 1]; if (name) match[name] = match[i]; } } // Fix browsers that increment `lastIndex` after zero-length matches if (!compliantLastIndexIncrement && this.global && !match[0].length && (this.lastIndex > match.index)) this.lastIndex--; } return match; } };
原文链接: 枫叶博客:http://www.9it.me/article-9.html