I've posted code in ColdFusion and JavaScript for a regular expression tester. Since I'm looking at ASP.NET development ... here's one built on ASP.NET (3.5, but it should run fine on 2.0), in C#.
RegularExpression.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="RegularExpression.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>ASP.NET 3.5 Regular Expression tester</title>
<style type="text/css">
form {
margin:0;
padding:0;
}
form label, .label_kludge {
display:block;
float:left;
width:180px;
padding:0;
margin:5px 0 0;
text-align:right;
}
form input, form textarea, form select {
width:200px;
margin:5px 0 0 10px;
}
textarea {
overflow:auto;
}
form br {
clear:left;
}
</style>
</head>
<body>
<h1>ASP.NET 3.5 Regular Expression Tester</h1>
<form id="form1" runat="server">
<div>
<asp:Label ID="lbl_RegularExpression" runat="server" Text="Regular Expression:"
AssociatedControlID="RegularExpression"></asp:Label>
<asp:TextBox ID="RegularExpression" runat="server" Width="350"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="RegularExpression" Display="Dynamic"
ErrorMessage="You must enter a regular expression." SetFocusOnError="True">You
must enter a regular expression.</asp:RequiredFieldValidator>
<br />
<asp:Label ID="lbl_TestString" runat="server" Text="Test String:"
AssociatedControlID="TestString"></asp:Label>
<asp:TextBox ID="TestString" runat="server" Width="350px"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server"
Display="Dynamic"
ErrorMessage="You must enter a string to test the regular expression against."
ControlToValidate="TestString">You
must enter a string to test the regular expression against.</asp:RequiredFieldValidator>
<br />
<asp:Label ID="lbl_CaseSensitive" runat="server" Text="Case Sensitive:"
AssociatedControlID="CaseSensitive"></asp:Label>
<asp:CheckBox ID="CaseSensitive" runat="server" />
<br />
<br />
<span class="label_kludge"> </span><asp:Button ID="btn_Test"
runat="server" Text="Test" onclick="btn_Test_Click" />
<br />
<asp:Label ID="lbl_Results" runat="server"></asp:Label>
<br />
</div>
</form>
</body>
</html>
RegularExpression.aspx.cs
using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Text.RegularExpressions;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e) {
if (this.IsPostBack) {
Boolean MatchCheck;
if (this.CaseSensitive.Checked) {
MatchCheck = Regex.IsMatch(this.TestString.Text, this.RegularExpression.Text);
} else {
MatchCheck = Regex.IsMatch(this.TestString.Text, this.RegularExpression.Text, RegexOptions.IgnoreCase);
}
if (MatchCheck) {
this.lbl_Results.Text = "Result: match found";
} else {
this.lbl_Results.Text = "Result: no match found";
}
}
}
protected void btn_Test_Click(object sender, EventArgs e) {
}
}
See it in action!
Want to see it in action? You can do so on JamesRSkemp.com.
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