我想要做的是找到页面上的所有文件名/文件路径,并使用javascript将它们加粗。
一些示例文件名/路径将是:
以下示例将使用正则表达式模式'test.t ..'查找字符串并将其变为粗体(即,将找到test.txt并且它将以粗体显示)。我需要将该正则表达式更改为将找到文件名/文件路径的正则表达式(仅使用一个简单的示例,我自己没有运行文件名/文件路径正则表达式)。
findAndReplace(document);
function findAndReplace(root) {
var children = root.childNodes;
var pattern = new RegExp('test.t..', 'ig');
var node;
for(var i = 0, l = children.length; i < l; i++) {
node = children[i];
if(node.nodeType === 3) { // we have a text node
if (node.nodeValue.match(pattern)){
var newValue = "<b>" + node.nodeValue.match(pattern) + "</b>";
node.parentElement.outerHTML = node.parentElement.outerHTML.replace(pattern, newValue);
}
} else if(node.nodeType === 1) { // Element node
findAndReplace(node);
}
}
}
答案 0 :(得分:0)
这是一个尝试的模式:
var pattern = /([a-z]:)?(\\\w+)+(\\|\.\w{3,4})?/;
说明:
([a-z]:)? - optionally starts with a drive letter and colon
\\ - backslash
\w+ - folder name
(\\\w+)+ - several subfolders possible
(\\|\.\w{3,4})? - optionally ends with a backslash or file extension
note that the file name would be caught by (\\\w+)+
答案 1 :(得分:0)
快速回答:http://jsfiddle.net/dCE9k/1/
我稍微改变了你的代码,看一个工作示例的小提琴。
正则表达式应如下所示:
/([a-zA-Z]:)?([\/\\])([a-zA-Z0-9\.]\2?)*/ig;
它会关注驱动器号,捕获目录分隔符并在整个文件路径中重用它。允许使用大写,小写,数字和点作为有效文件名。
我使用了这个演示HTML代码
<p>\server\folder</p>
<p>\server\folder\</p>
<p>\server\folder\filename.txt</p>
<p>c:\</p>
<p>c:\folder</p>
<p>c:\folder\</p>
<p>c:\folder\filename.txt</p>
我调整了一下你的JS代码:
findAndReplace(document);
function findAndReplace(root) {
var children = root.childNodes;
var pattern = /([a-zA-Z]:)?([\/\\])([a-zA-Z0-9\.]\2?)*/ig; // applied new regex
var node;
for(var i = 0, l = children.length; i < l; i++) {
node = children[i];
if(node.nodeType === 3) { // we have a text node
if (pattern.test(node.nodeValue)){ // This line changed (maybe not required)
var newValue = "<b>" + node.nodeValue.match(pattern) + "</b>";
node.parentElement.innerHTML = newValue; // This line changed
}
} else if(node.nodeType === 1) { // Element node
findAndReplace(node);
}
}
}
答案 2 :(得分:0)
我尝试了你的代码,但它不起作用......即使我纠正了正则表达式......
所以有解决方案:
<!DOCTYPE html>
<html>
<head>
<title>My Page</title>
<script>
function findAndReplace(root) {
var children = root.childNodes;
var pattern = /([a-zA-Z]:[\\\/]|[\\\/])(\w+[\\\/])*\w+\.\w{3}/g;
var node;
for(var i = 0, l = children.length; i < l; i++) {
node = children[i];
if(node.nodeType === 3) { // we have a text node
if (node.nodeValue.match(pattern)) {
var mySpan = document.createElement("span");
mySpan.innerHTML = "<b>" + node.nodeValue.match(pattern) + "</b>";
node.parentNode.replaceChild(mySpan, node);
}
} else if(node.nodeType === 1) { // Element node
findAndReplace(node);
}
}
}
</script>
</head>
<body onload="javascript:findAndReplace(document);">
<form name="myform" action="test" method="POST">
<div align="center"><br>
<input type="radio" name="group1" value="Milk" /> Milk.txt<br />
<input type="radio" name="group1" value="Butter" checked /> Butter.txt<br />
<input type="radio" name="group1" value="Cheese" /> Cheese.tes
<hr />
<input type="radio" name="group2" value="Water"/> /bonjour.tsh<br />
<input type="radio" name="group2" value="Beer" /> Beer.txt<br />
<input type="radio" name="group2" value="Wine" checked /> /Milk.txt<br />
</div>
/Milk.txt
</form>
c:/bonjour/Milk.txt<br />
c:\test.txt
</body>
</html>