[Mono-bugs] [Bug 77626][Nor] New - Regex bug which character classes

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Thu Feb 23 14:02:56 EST 2006


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Changed by awaddell at fnfr.com.

http://bugzilla.ximian.com/show_bug.cgi?id=77626

--- shadow/77626	2006-02-23 14:02:56.000000000 -0500
+++ shadow/77626.tmp.2766	2006-02-23 14:02:56.000000000 -0500
@@ -0,0 +1,78 @@
+Bug#: 77626
+Product: Mono: Class Libraries
+Version: unspecified
+OS: All
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: System
+AssignedTo: mono-bugs at ximian.com                            
+ReportedBy: awaddell at fnfr.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Regex bug which character classes
+
+Please fill in this template when reporting a bug, unless you know what you
+are doing.
+Description of Problem:
+
+This may be a duplicate of bug #77363, but I've simplied the test case
+dramatically.
+
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Text.RegularExpressions;
+
+namespace RegexBug
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+
+            if (Regex.IsMatch("mT1[", @"m[0-9A-Za-z_-]+\[")) {
+                Console.WriteLine("matched");
+            } else {
+                Console.WriteLine("does not match");
+            }
+
+            if (Regex.IsMatch("mT1[", @"m[-0-9A-Za-z_]+\[")) {
+                Console.WriteLine("matched");
+            } else {
+                Console.WriteLine("does not match");
+            }
+
+       }
+    }
+}
+
+
+Steps to reproduce the problem:
+1. Run my test case
+2. 
+3. 
+
+Actual Results:
+
+matched
+does not match
+
+Expected Results:
+matched
+matched
+
+How often does this happen? 
+always
+
+Additional Information:
+looks like the '-' in the character class is not being handled propertly
+when it's the first character.  Escaping it make it work too, but I don't
+think it should be needed.
+
+my college reports that this used to work in 1.1.12


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