https://bugzilla.novell.com/show_bug.cgi?id=443841
Summary: String Matching using Regular Expressions Pattern
containing nested grouping produces
System.NotSupportedException
Product: Mono: Runtime
Version: SVN
Platform: 64bit
OS/Version: Linux
Status: NEW
Severity: Normal
Priority: P5 - None
Component: misc
AssignedTo: mono-bugs@lists.ximian.com
ReportedBy: [EMAIL PROTECTED]
QAContact: mono-bugs@lists.ximian.com
CC: [EMAIL PROTECTED]
Found By: Community User
Created an attachment (id=251386)
--> (https://bugzilla.novell.com/attachment.cgi?id=251386)
Test Program to reproduce Regular Expressions bug
When performing a string match based on a regular expression pattern containing
nested grouping (1 or more), a System.NotSupportedException is thrown.
With a pattern containing one grouping the error is not produced. But when
nested at least once, the NotSupported exception is thrown.
The bug is a regression from the 2.0 release as confirmed by running the test
on 2.0.
Here's the stacktrace using the attached test program, "RegExpTest.cs":
To reproduce:
1)Compile the attached RegExpTest.cs
2)Run the exe
evaluating: Info at pc: 321, strpos: 1
Unhandled Exception: System.NotSupportedException: Operation is not supported.
at System.Text.RegularExpressions.RxInterpreter.EvalByteCode (Int32 pc, Int32
strpos, System.Int32& strpos_result) [0x00000]
at System.Text.RegularExpressions.RxInterpreter.EvalByteCode (Int32 pc, Int32
strpos, System.Int32& strpos_result) [0x00000]
at System.Text.RegularExpressions.RxInterpreter.EvalByteCode (Int32 pc, Int32
strpos, System.Int32& strpos_result) [0x00000]
at System.Text.RegularExpressions.RxInterpreter.EvalByteCode (Int32 pc, Int32
strpos, System.Int32& strpos_result) [0x00000]
at System.Text.RegularExpressions.RxInterpreter.EvalByteCode (Int32 pc, Int32
strpos, System.Int32& strpos_result) [0x00000]
at System.Text.RegularExpressions.RxInterpreter.EvalByteCode (Int32 pc, Int32
strpos, System.Int32& strpos_result) [0x00000]
at System.Text.RegularExpressions.RxInterpreter.EvalByteCode (Int32 pc, Int32
strpos, System.Int32& strpos_result) [0x00000]
at System.Text.RegularExpressions.RxInterpreter.EvalByteCode (Int32 pc, Int32
strpos, System.Int32& strpos_result) [0x00000]
at System.Text.RegularExpressions.RxInterpreter.EvalByteCode (Int32 pc, Int32
strpos, System.Int32& strpos_result) [0x00000]
at System.Text.RegularExpressions.RxInterpreter.EvalByteCode (Int32 pc, Int32
strpos, System.Int32& strpos_result) [0x00000]
at System.Text.RegularExpressions.RxInterpreter.EvalByteCode (Int32 pc, Int32
strpos, System.Int32& strpos_result) [0x00000]
at System.Text.RegularExpressions.RxInterpreter.EvalByteCode (Int32 pc, Int32
strpos, System.Int32& strpos_result) [0x00000]
at System.Text.RegularExpressions.RxInterpreter.Scan
(System.Text.RegularExpressions.Regex regex, System.String text, Int32 start,
Int32 end) [0x00000]
at System.Text.RegularExpressions.Regex.Match (System.String input, Int32
startat) [0x00000]
at System.Text.RegularExpressions.Regex.IsMatch (System.String input, Int32
startat) [0x00000]
at System.Text.RegularExpressions.Regex.IsMatch (System.String input)
[0x00000]
at RegExpTest.Main (System.String[] args) [0x00000]
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