正则表达式输入内容进行处理 正则表达式小脚本(对输入内容进行处理)
人气:0想了解正则表达式小脚本(对输入内容进行处理)的相关内容吗，在本文为您仔细讲解正则表达式输入内容进行处理的相关知识和一些Code实例，欢迎阅读和指正，我们先划重点：正则表达式,输入内容,进行处理，下面大家一起来学习吧。
该小脚本实现的是对输入框内容中取出<img>标签中的src中的内容，然后在原来位置进行替换内容，然后在去除输入内容中的html标签，空格等操作
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<script>
window.onload = function () {
var target = document.getElementById("div1");
var but = document.getElementById("but");
var value;
but.onclick = function () {
value = target.innerHTML;
result = dealText(value);
alert(result);
};
};
function dealText(msg) {
var text1 = imageRound(msg);
var text2 = removeTag(text1);
var text3 = removeBlank(text2);
var text4 = changeNBSP(text3);
return text4;
}
function DealNum(num) {
var content = [];
for (var i = 0; i < num.length; i++) {
//
content.push(defaultSrc(num[i]));
}
return content;
}
function defaultSrc(src) {
return ':avator:';
}
function returnValue(srcValue) {
var num = [];
var pattern = /([^\/]+)\./;
var src;
for (var i = 0; i < srcValue.length; i++) {
src = pattern.exec(srcValue[i])[1];
num.push(src);
}
// alert(num);
var source = DealNum(num);
return source;
}
function imageRound(text) {
var reg2 = /<img.*?\>/gi;
var s = text.match(reg2);
var num = returnValue(s);
var i = 0;
var content = text.replace(reg2, function () {
return num[i++];
});
return content;
}
function removeTag(text) {
var text1;
var reg = /<.*?>|<.*?\/>/g;
text1 = text.replace(reg, "");
return text1;
}
function removeBlank(text) {
var text1;
var reg = /\s+/g;
text1 = text.replace(reg, "");
return text1;
}
function changeNBSP(text) {
var text1;
var reg = / /g;
var reg1 = /\;/g;
text1 = text.replace(reg, ' ');
text1 = text1.replace(reg1, "");
return text1;
}
</script>
</head>
<body>
<div contenteditable="true" id="div1">abc efg <img src="asdjk/123.jpg"/><span>hi gk</span><img
src="ahdkh/124.jpg"/>
<div>lmnop</div>
q rst uvw
</div>
<button id="but">更新</button>
</body>
</html>
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