关于正则表达式

vbscript里匹配

1<input ...=""/>

1<select ...="">...</select>

1<textarea ...="">...</textarea>

这些正则表达式该怎么些
---------------------------------------------------------------

1<input id="oText" value="00100100.1"/>

1<input onclick="window.alert(parseFloat(self['oText'].value));" type="button" value="测试"/>

---------------------------------------------------------------

"^\\d+$" //非负整数（正整数 + 0）
"^[0-9][1-9][0-9]$" //正整数
"^((-\\d+) ¦(0+))$" //非正整数（负整数 + 0）
"^-[0-9][1-9][0-9]$" //负整数
"^-?\\d+$" //整数
"^\\d+(\\.\\d+)?$" //非负浮点数（正浮点数 + 0）
"^(([0-9]+\\.[0-9][1-9][0-9]) ¦([0-9][1-9][0-9]\\.[0-9]+) ¦([0-9][1-9][0-9]))$" //正浮点数
"^((-\\d+(\\.\\d+)?) ¦(0+(\\.0+)?))$" //非正浮点数（负浮点数 + 0）
"^(-(([0-9]+\\.[0-9][1-9][0-9]) ¦([0-9][1-9][0-9]\\.[0-9]+) ¦([0-9][1-9][0-9])))$" //负浮点数
"^(-?\\d+)(\\.\\d+)?$" //浮点数
"^[A-Za-z]+$" //由26个英文字母组成的字符串
"^[A-Z]+$" //由26个英文字母的大写组成的字符串
"^[a-z]+$" //由26个英文字母的小写组成的字符串
"^[A-Za-z0-9]+$" //由数字和26个英文字母组成的字符串
"^\\w+$" //由数字、26个英文字母或者下划线组成的字符串
"^[\\w-]+(\\.[\\w-]+)@[\\w-]+(\\.[\\w-]+)+$" //email地址
"^[a-zA-z]+://(\\w+(-\\w+))(\\.(\\w+(-\\w+)))(\?\\S*)?$" //url

---------------------------------------------------------------

  1<html>
  2<head>
  3<title>正则表达式练习器</title>
  4<meta e-mail:[email protected]="" name="安徽" 徐祖宁="" 池州="" 统计局=""/>
  5<script language="JavaScript">   
  6function OnMove() {   
  7window.status = "("+window.event.clientX+","+window.event.clientY+")" + " :: "+document.location   
  8}   
  9</script>
 10<script language="JavaScript1.2">   
 11var re = new RegExp() //建立正则表达式对象   
 12var nextpoint = 0 //匹配时的偏移量   
 13//设置正则表达式   
 14function setPattern(form) {   
 15var mode   
 16if(form.chkmode.checked) mode = "gi" //i:不分大小写 g:全局，好象没什么作用   
 17else mode = "g"   
 18re.compile(form.regexp.value,mode)   
 19nextpoint = 0   
 20form.reglist.value = ""   
 21}   
 22//检查是否有匹配   
 23function findIt(form) {   
 24setPattern(form)   
 25var input = form.main.value   
 26if (input.search(re) != -1) {   
 27form.output[0].checked = true   
 28} else {   
 29form.output[1].checked = true   
 30}   
 31}   
 32//检查匹配位置   
 33function locateIt(form) {   
 34setPattern(form)   
 35var input = form.main.value   
 36form.offset.value = input.search(re)   
 37}   
 38//检查所有的匹配情况   
 39function execIt(form) {   
 40if(nextpoint == 0 ¦ ¦ ! form.scankmode.checked) {   
 41findIt(form)   
 42form.reglist.value = ""   
 43}   
 44var key = true   
 45if(form.scankmode.checked) key = false   
 46do {   
 47var input = form.main.value   
 48var matchArray = re.exec(input.substr(nextpoint))   
 49if(matchArray) {   
 50for(var i=1;i<matchArray.length;i++)   
 51matchArray[i] = "$"+i+":"+matchArray[i]   
 52form.reglist.value = (nextpoint+matchArray.index)+" => " + matchArray[0] +"\n"+form.reglist.value   
 53form.matchlist.value = "$0:"+matchArray.join("\n")   
 54nextpoint = nextpoint + matchArray.index + matchArray[0].length   
 55}else {   
 56if(!key)   
 57form.reglist.value = "没有找到\n" + form.reglist.value   
 58form.matchlist.value = " "   
 59nextpoint = 0   
 60key = false   
 61}   
 62}while (key)   
 63}   
 64//设置当前使用的正则表达式   
 65function setregexp(n) {   
 66var s = document.all.regexplist.value.split("\r\n")   
 67document.all.regexp.value = s[n*2-1] //.replace("\r","")   
 68nextpoint = 0   
 69}   
 70  
 71//定义选择监视   
 72var isNav = (navigator.appName == "Netscape")   
 73function showSelection() {   
 74if (isNav) {   
 75var theText = document.getSelection()   
 76} else {   
 77var theText = document.selection.createRange().text   
 78}   
 79if(theText.length>0 && document.all.selechkmode.checked)   
 80document.all.regexp.value = theText   
 81}   
 82if (isNav) {   
 83document.captureEvents(Event.MOUSEUP)   
 84}   
 85document.onmouseup = showSelection   
 86</script>
 87</head>
 88<body onmousemove="OnMove()" style="font-size=9pt;">
 89<form><table cellpadding="0" cellspacing="0" width="100%"><tr><td><font color="red">正规表达式练习器</font></td><td align="right"><a href="mailto:[email protected]">[email protected]</a></td></tr></table>
 90<table broder="1" frame="above" rules="none" style="font-size:9pt;" width="100%">
 91<tr><td valign="top" width="50%">   
 92输入一些被寻找的正文:<br/>
 93<textarea cols="58" name="main" rows="5" style="font-size:9pt;" wrap="virtual">   
 9409-11-2001 09/11/2001 [email protected]   
 95asdff 12345 196.168.1.3 www.sohu.com ftp://www.chinaasp.com 2001.9.11 http://www.active.com.cn/club/bbs/bbsView.asp http://www.163.com/inden.htm   
 96</textarea><br/>   
 97进行匹配的正规表达式: 忽略大小写<input checked="" name="chkmode" style="font-size:8pt;height:18px" type="checkbox"/><br/>
 98<textarea cols="51" name="regexp" rows="5" style="font-size:9pt;"></textarea>
 99<input onclick="this.form.regexp.value=''" style="font-size:8pt;height:18px" type="button" value="清除"/><br/>
100<input onclick="findIt(this.form)" style="font-size:8pt;width:70%;height:18px" type="button" value="能找到吗?[regexObject.test(string)]"/>
101<input name="output" style="font-size:8pt;height:18px" type="radio"/>Yes   
102<input name="output" style="font-size:8pt;height:18px" type="radio"/>No <br/>
103<input onclick="locateIt(this.form)" style="font-size:8pt;width:70%;height:18px" type="button" value="在哪里?[string.search(regexObject)]"/>
104<input name="offset" size="4" style="font-size:8pt;height:18px" type="text"/>
105</td>
106<td valign="top">   
107测试用正则表达式列表:   
108使用第<input name="num" size="2" style="font-size:8pt;height:18px" type="text" value="1"/>个<input onclick="setregexp(this.form.num.value)" style="font-size:8pt;height:18px" type="button" value="Go"/>   
109允许复制<input name="selechkmode" style="font-size:8pt;height:18px" type="checkbox"/>
110<textarea cols="58" name="regexplist" rows="14" style="font-size:9pt;" wrap="off">   
1111.检查日期:   
112(1[0-2] &amp;brvbar0?[1-9])[-./](0?[1-9] ¦[12][0-9] &amp;brvbar3[01])[-./](\d\d\d\d))   
1132.检查数字:   
114([-+]?[0-9]+\\.?[0-9]+)   
1153.检查URL:   
116((http &amp;brvbarftp)://)?(((([\d]+\\.)+){3}[\d]+(/[\w./]+)?) ¦([a-z]\w*((\\.\w+)+){2,})([/][\w.~]*)*)   
1174.检查E-mail   
118\w+@((\w+[.]?)+)   
119</textarea>
120</td></tr>
121<tr><td valign="bottom">
122<input onclick="execIt(this.form)" style="font-size:8pt;width:70%;height:18px" type="button" value="有哪些?[regexObject.exec(string)]"/>   
123单步<input name="scankmode" style="font-size:8pt;height:18px" type="checkbox"/><br/>
124<textarea cols="58" name="reglist" rows="8" style="font-size:9pt;"></textarea>
125</td>
126<td valign="bottom">   
127匹配到的成分:(单步时可见)   
128<textarea cols="58" name="matchlist" rows="8" style="font-size:9pt;"></textarea>
129</td></tr></table></form>
130<script>   
131setregexp(1)   
132</script>
133</body>
134</html>
Published At
Categories with Web编程
comments powered by Disqus