0002907: Regex option 'A' ignored

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Category

Severity

Reproducibility

Date Submitted

Last Update

0002907

[Quercus]

minor

always

09-05-08 01:23

09-09-08 10:56

Reporter

wikipo

View Status

public

Assigned To

nam

Priority

normal

Resolution

fixed

Status

closed

Product Version

3.1.6

Summary

0002907: Regex option 'A' ignored

Description

When a regex expression uses option 'A', the match functions must use the offest specified.

I have found this in mediawiki 1.12 code in this expression:

$elementsRegex = "~($xmlishRegex)(?:\s|\/>|>)|(!--)~iA";

subsequently used in a call to preg_match with offset specified.

Additional Information

I think the semantics of option 'A' is to anchor the search to the offset specified relative to the beginning of the text, while option '^' means to anchor to the beginning of the text.

I changed the test in RegexpNode.AnchorBegin.match:

// if (offset == 0)
if (offset == state._first)

This solves the problem at least for mediawiki.

Attached Files

Relationships

Notes
(0003414) nam 09-09-08 10:56	php/153h

Issue History
Date Modified	Username	Field	Change
09-05-08 01:23	wikipo	New Issue
09-05-08 19:42	nam	Status	new => assigned
09-05-08 19:42	nam	Assigned To	=> nam
09-09-08 10:56	nam	Status	assigned => closed
09-09-08 10:56	nam	Note Added: 0003414
09-09-08 10:56	nam	Resolution	open => fixed
09-09-08 10:56	nam	Fixed in Version	=> 3.2.1

Mantis 1.0.0rc3[^]

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