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[Octave-bug-tracker] [bug #35911] Backslash escaping in regexprep replac
From: |
Burkart Lingner |
Subject: |
[Octave-bug-tracker] [bug #35911] Backslash escaping in regexprep replacement string incompatibility |
Date: |
Tue, 20 Mar 2012 17:00:25 +0000 |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:11.0) Gecko/20100101 Firefox/11.0 |
URL:
<http://savannah.gnu.org/bugs/?35911>
Summary: Backslash escaping in regexprep replacement string
incompatibility
Project: GNU Octave
Submitted by: burkart
Submitted on: Tue 20 Mar 2012 05:00:24 PM GMT
Category: Interpreter
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Matlab Compatibility
Status: None
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: 3.6.1
Operating System: GNU/Linux
_______________________________________________________
Details:
MATLAB expects backslashes in the replacement string of regexprep(...) to be
escaped as '\\' whereas Octave expects a single backslash. Example:
regexprep('foobar', '[fb]', '\\')
yields "\oo\ar" in MATLAB and "\\oo\\ar" in Octave.
regexprep('foobar', '[fb]', '\')
yields "\oo\ar" in both MATLAB and Octave. However, using single backslashes
is not a real solution. Let's say you want to replace the "f" and "b" in
"foobar" with the character sequence "\n" but not a newline. This would be
achieved with the replacement string "\n" in Octave only whereas that would
cause a newline to be inserted in MATLAB which requires the replacement string
"\\n" for the desired functionality. Another scenario would be that you want
to replace something with two consecutive backslashes. This calls for the
replacement string "\\" in Octave but for "\\\\" in MATLAB.
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?35911>
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- [Octave-bug-tracker] [bug #35911] Backslash escaping in regexprep replacement string incompatibility,
Burkart Lingner <=
- [Octave-bug-tracker] [bug #35911] Backslash escaping in regexprep replacement string incompatibility, Rik, 2012/03/25
- [Octave-bug-tracker] [bug #35911] Backslash escaping in regexprep replacement string incompatibility, Burkart Lingner, 2012/03/28
- [Octave-bug-tracker] [bug #35911] Backslash escaping in regexprep replacement string incompatibility, Rik, 2012/03/28
- [Octave-bug-tracker] [bug #35911] Backslash escaping in regexprep replacement string incompatibility, John W. Eaton, 2012/03/28
- [Octave-bug-tracker] [bug #35911] Backslash escaping in regexprep replacement string incompatibility, Rik, 2012/03/29
- [Octave-bug-tracker] [bug #35911] Backslash escaping in regexprep replacement string incompatibility, Rik, 2012/03/29
- [Octave-bug-tracker] [bug #35911] Backslash escaping in regexprep replacement string incompatibility, Burkart Lingner, 2012/03/30
- [Octave-bug-tracker] [bug #35911] Backslash escaping in regexprep replacement string incompatibility, Jordi GutiƩrrez Hermoso, 2012/03/30
- [Octave-bug-tracker] [bug #35911] Backslash escaping in regexprep replacement string incompatibility, Burkart Lingner, 2012/03/30
- [Octave-bug-tracker] [bug #35911] Backslash escaping in regexprep replacement string incompatibility, John W. Eaton, 2012/03/30