bugGNU Octave - Bugs: bug #38958, parse error in function handle...


bug #38958: parse error in function handle returning string expression

Submitted by:  Clemens Buchacher <drizzd>
Submitted on:  Fri 10 May 2013 09:32:50 AM UTC  
Category:  Interpreter Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Regression
Status:  Fixed Assigned to:  None
Originator Name:  Clemens Buchacher Open/Closed:  Closed
Release:  dev Operating System:  Microsoft Windows

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Sat 18 May 2013 08:23:25 PM UTC, comment #1:

I checked in the following changeset:


John W. Eaton <jwe>
Project Administrator
Fri 10 May 2013 09:32:50 AM UTC, original submission:

Tested with MXE build of 3.7.3. Works as expected with 3.6.4 (on mingw32-i686) and 3.4.3 (on x86_64-unknown-linux-gnu).

Octave returns an error while parsing a function handle which returns a string expression. I am using feval only to demonstrate the expected result. The parse error also triggers for @()'foo' by itself.

  • Expected result:

> feval(@()'foo', {})

ans = foo

  • Actual result:

> feval(@()'foo', {})

parse error:

syntax error

>>> feval(@()'foo', {})

A workaround is to use @()x='foo':

> feval(@()x='foo', {})

ans = foo

For types other than String Octave behaves as expected:

> feval(@()1:10, {})

ans =

1 2 3 4 5 6 7 8 9 10

> feval(@()struct('a',5), {})

ans =

scalar structure containing the fields:

a = 5

Clemens Buchacher <drizzd>


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    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2013-05-18 jwe StatusNone => Fixed
        Open/ClosedOpen => Closed

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