[Bug 1050950] [NEW] does not use the '--' to stop parsing switches

[Moses Moore]

Public bug reported:

How to reproduce:
$ mkdir -p /tmp/a ; cd /tmp/a
$ for f in alpha beta -delta; do convert -size 100x100 xc: +noise Random -- $f.png; done
$ montage -- *.png gamma.jpg

Expected behaviour:
( image gamma.jpg is created )

Observed behaviour:
"montage: unrecognized option `-delta.png' @ error/montage.c/MontageImageCommand/865."

What's weird is I'd expect convert to throw a similar exception when I
execute:

$ convert -size 100x100 xc: +noise Random -delta.png

but it doesn't.  This is what I get instead when I use '--' to stop
parsing switches:

$  convert -size 100x100 xc: +noise Random -- -delta.png
convert: missing an image filename `-delta.png' @ error/convert.c/ConvertImageCommand/3009.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: imagemagick 8:6.6.9.7-5ubuntu3.2
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic-pae 3.2.18
Uname: Linux 3.2.0-25-generic-pae i686
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu13
Architecture: i386
Date: Fri Sep 14 10:51:14 2012
ProcEnviron:
 LANGUAGE=en_CA:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: imagemagick
UpgradeStatus: Upgraded to precise on 2012-04-28 (139 days ago)

** Affects: imagemagick (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 precise

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https://bugs.launchpad.net/bugs/1050950

Title:
  does not use the '--' to stop parsing switches

Status in “imagemagick” package in Ubuntu:
  New

Bug description:
  How to reproduce:
  $ mkdir -p /tmp/a ; cd /tmp/a
  $ for f in alpha beta -delta; do convert -size 100x100 xc: +noise Random -- $f.png; done
  $ montage -- *.png gamma.jpg

  Expected behaviour:
  ( image gamma.jpg is created )

  Observed behaviour:
  "montage: unrecognized option `-delta.png' @ error/montage.c/MontageImageCommand/865."

  What's weird is I'd expect convert to throw a similar exception when I
  execute:

  $ convert -size 100x100 xc: +noise Random -delta.png

  but it doesn't.  This is what I get instead when I use '--' to stop
  parsing switches:

  $  convert -size 100x100 xc: +noise Random -- -delta.png
  convert: missing an image filename `-delta.png' @ error/convert.c/ConvertImageCommand/3009.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: imagemagick 8:6.6.9.7-5ubuntu3.2
  ProcVersionSignature: Ubuntu 3.2.0-25.40-generic-pae 3.2.18
  Uname: Linux 3.2.0-25-generic-pae i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu13
  Architecture: i386
  Date: Fri Sep 14 10:51:14 2012
  ProcEnviron:
   LANGUAGE=en_CA:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: imagemagick
  UpgradeStatus: Upgraded to precise on 2012-04-28 (139 days ago)

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