bugGNU Octave - Bugs: bug #39426, regexp: backreferences with named...


bug #39426: regexp: backreferences with named capture groups (\k) are not supported

Submitted by:  Rik <rik5>
Submitted on:  Sun 07 Jul 2013 10:21:17 PM UTC  
Category:  Libraries Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Matlab Compatibility
Status:  Confirmed Assigned to:  None
Originator Name:  Open/Closed:  Open
Release:  dev Operating System:  Any

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Mon 21 Nov 2016 10:15:59 PM UTC, comment #1: 

This issue is still present in Octave 4.2.0.

The code in comment #0 still throws an error.

Hartmut <hardy>
Sun 07 Jul 2013 10:21:17 PM UTC, original submission:  

Because Octave's internal interface substitutes its own names for named capture groups the \k syntax does not work.

The example below, for finding duplicate characters, should work.

regexp ('abccdeffg', '(?<char1>.)\k<char1>', 'match')

Rik <rik5>
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