Re: Glob problem

[Brent Briggs <brent.briggs@xxxxxxxxx>]

This did the job. I still have one question. I can't find any documentation for the "--" option. What does it do exactly?


On Oct 22, 2013, at 4:11 PM, Yuya Amemiya <ghostrevery@xxxxxxxxx> wrote:

> Hi,
> 
>> print -l $path/$~pattern
> 
> Try this:
>  print -l -- ${^path}/${~pattern}
> 
> regards
> 
> From: Brent Briggs <brent.briggs@xxxxxxxxx>
> Subject: Re: Glob problem
> Date: Tue, 22 Oct 2013 14:49:13 -0400
> 
>> Adding the (N) Glob Qualifier made a difference but is I'm still not quite there yet. 
>> 
>> pattern=git*(N)
>> print -l $path/$~pattern
>> 
>> Output:
>> ----------
>> /opt/local/bin
>> /opt/local/sbin
>> /usr/bin
>> /bin
>> /usr/sbin
>> /sbin
>> /usr/local/bin
>> /usr/local/MacGPG2/bin
>> 
>> This is my full path listing minus the final entry /Users/brent/bin. I know this is a bit of an incidental question but why is the final path entry missing from this output? 
>> 
>> Trying this gets me a little closer.
>> 
>> pattern=git*(N)
>> for entry in $path      
>> do
>> 	print -l $entry/$~pattern
>> done
>> 
>> Output:
>> ----------
>> /opt/local/bin/git
>> /opt/local/bin/git-credential-osxkeychain
>> /opt/local/bin/git-cvsserver
>> /opt/local/bin/git-receive-pack
>> /opt/local/bin/git-shell
>> /opt/local/bin/git-upload-archive
>> /opt/local/bin/git-upload-pack
>> /opt/local/bin/gitk
>> -- blank --
>> /usr/bin/git
>> /usr/bin/git-cvsserver
>> /usr/bin/git-receive-pack
>> /usr/bin/git-shell
>> /usr/bin/git-upload-archive
>> /usr/bin/git-upload-pack
>> -- blank --
>> -- blank --
>> -- blank --
>> -- blank --
>> -- blank --
>> 
>> Blank lines are printed for the directories that contain no pattern matches. Any quick way to get rid of these?
>> 
>> On Oct 22, 2013, at 2:12 PM, Peter Miller <peter.d.miller@xxxxxxxxxx> wrote:
>> 
>>> On 10/22/13 14:02, Brent Briggs wrote:
>>>> Thanks for all the responses. The glob is now being generated properly. However, I am still having a problem getting my loop to run completely through.
>>>> 
>>>> pattern=git*
>>>> for entry in $path
>>>> do
>>>>    print -l $entry/$~pattern
>>>> done
>>>> 
>>>> Output:
>>>> ----------
>>>> /opt/local/bin/git
>>>> /opt/local/bin/git-credential-osxkeychain
>>>> /opt/local/bin/git-cvsserver
>>>> /opt/local/bin/git-receive-pack
>>>> /opt/local/bin/git-shell
>>>> /opt/local/bin/git-upload-archive
>>>> /opt/local/bin/git-upload-pack
>>>> /opt/local/bin/gitk
>>>> zsh: no matches found: /opt/local/sbin/git*
>>>> 
>>>> /opt/local/sbin/ being the second entry in my path.
>>>> 
>>>> 
>>>> Also tried:
>>>> 
>>>> print -l $path/$~pattern
>>> 
>>> try
>>> 
>>> pattern=git*(N)
>>> print -l $path/$~pattern
>>> 
>>> that will tell zsh to ignore globs that don't have any matches.
>>> 
>>>> 
>>>> Output:
>>>> ----------
>>>> zsh: no matches found: /Users/brent/bin/git*
>>>> 
>>>> /Users/brent/bin/ being the last entry in my path.
>>>> 
>>>> Looks like I need to use a conditional to test if any pattern matches exist, per directory, before trying to print them. I wasn't able to find a solution in the manual that facilitates testing for the existence of pattern matches. I would like to solve this problem using only globbing if possible. I am probably missing something simple.
>>>> 
>>>> 
>>>> 
>>>> On Oct 22, 2013, at 1:05 PM, Philippe Troin<phil@xxxxxxxx>  wrote:
>>>> 
>>>>> On Tue, 2013-10-22 at 12:45 -0400, Brent Briggs wrote:
>>>>> 
>>>>>> I am simply trying to list all matches for a specified pattern in an
>>>>>> array of directory paths, the $path array for example. Here is my
>>>>>> attempt. Where am I going wrong?
>>>>> Globs are not ran after variable substitution by default.
>>>>> To run filename generation (aka globs) after variable substitution, use
>>>>> $~var.
>>>>> 
>>>>> Your example:
>>>>> 
>>>>>> pattern=git*
>>>>>> for entry in $path
>>>>>> do
>>>>>>   # Print all files in the path that match the pattern.
>>>>>>   print $entry/$pattern
>>>>>> done
>>>>> Can be rewritten as:
>>>>> 
>>>>>       pattern=git*
>>>>>       for entry in $path
>>>>>       do
>>>>>           # Print all files in the path that match the pattern.
>>>>>           print $entry/$~pattern
>>>>>       done
>>>>> 
>>>>> It can be simplified further as:
>>>>> 
>>>>>       pattern=git*
>>>>>       print $path/$~pattern
>>>>> 
>>>>> Phil.
>>>>> 
>>> 
>>