pattern search

[Fabian Braennstroem]

Hi,

I wrote a small gtk file manager, which works pretty well. Until
now, I am able to select different file (treeview entries) just by
extension (done with 'endswith'). See the little part below:

self.pathlist1=[ ]
self.patternlis t=[ ]
while iter:
# print iter
value = model.get_value (iter, 1)
# if value is what I'm looking for:
if value.endswith( "."+ pattern):
selection.selec t_iter(iter)
selection.selec t_path(n)
self.pathlist1. append(n)
self.patternlis t.append(value)
iter = model.iter_next (iter)
# print value
n=n+1

Now, I would like to improve it by searching for different 'real'
patterns just like using 'ls' in bash. E.g. the entry
'car*.pdf' should select all pdf files with a beginning 'car'.
Does anyone have an idea, how to do it?

Greetings!
Fabian

[Diez B. Roggisch]

Re: pattern search

Fabian Braennstroem wrote:

Hi,
>
I wrote a small gtk file manager, which works pretty well. Until
now, I am able to select different file (treeview entries) just by
extension (done with 'endswith'). See the little part below:
>
self.pathlist1=[ ]
self.patternlis t=[ ]
while iter:
# print iter
value = model.get_value (iter, 1)
# if value is what I'm looking for:
if value.endswith( "."+ pattern):
selection.selec t_iter(iter)
selection.selec t_path(n)
self.pathlist1. append(n)
self.patternlis t.append(value)
iter = model.iter_next (iter)
# print value
n=n+1
>
Now, I would like to improve it by searching for different 'real'
patterns just like using 'ls' in bash. E.g. the entry
'car*.pdf' should select all pdf files with a beginning 'car'.
Does anyone have an idea, how to do it?

Use regular expressions. They are part of the module "re". And if you use
them, ditch your code above, and make it just search for a pattern all the
time. Because the above is just the case of

*.ext



Diez

[=?ISO-8859-2?Q?Wojciech_Mu=B3a?=]

Re: pattern search

Fabian Braennstroem wrote:

Now, I would like to improve it by searching for different 'real'
patterns just like using 'ls' in bash. E.g. the entry
'car*.pdf' should select all pdf files with a beginning 'car'.
Does anyone have an idea, how to do it?

Use module glob.

[Paul McGuire]

Re: pattern search

On Mar 27, 10:18 am, "Diez B. Roggisch" <d...@nospam.we b.dewrote:

Fabian Braennstroem wrote:

Hi,

>

I wrote a small gtk file manager, which works pretty well. Until
now, I am able to select different file (treeview entries) just by
extension (done with 'endswith'). See the little part below:

>

self.pathlist1=[ ]
self.patternlis t=[ ]
while iter:
# print iter
value = model.get_value (iter, 1)
# if value is what I'm looking for:
if value.endswith( "."+ pattern):
selection.selec t_iter(iter)
selection.selec t_path(n)
self.pathlist1. append(n)
self.patternlis t.append(value)
iter = model.iter_next (iter)
# print value
n=n+1

>

Now, I would like to improve it by searching for different 'real'
patterns just like using 'ls' in bash. E.g. the entry
'car*.pdf' should select all pdf files with a beginning 'car'.
Does anyone have an idea, how to do it?

>
Use regular expressions. They are part of the module "re". And if you use
them, ditch your code above, and make it just search for a pattern all the
time. Because the above is just the case of
>
*.ext
>
Diez- Hide quoted text -
>
- Show quoted text -

The glob module is a more direct tool based on the OP's example. The
example he gives works directly with glob. To use re, you'd have to
convert to something like "car.*\.pdf ", yes?

(Of course, re offers much more power than simple globbing. Not clear
how much more the OP was looking for.)

-- Paul

[Fabian Braennstroem]

Re: pattern search

Hi to all,

Wojciech Mu?a schrieb am 03/27/2007 03:34 PM:

Fabian Braennstroem wrote:

>Now, I would like to improve it by searching for different 'real'
>patterns just like using 'ls' in bash. E.g. the entry
>'car*.pdf' should select all pdf files with a beginning 'car'.
>Does anyone have an idea, how to do it?

>
Use module glob.

Thanks for your help! glob works pretty good, except that I just
deleted all my lastet pdf files :-(

Greetings!
Fabian

[Paul McGuire]

Re: pattern search

On Mar 27, 3:13 pm, Fabian Braennstroem <f.braennstr... @gmx.dewrote:

Hi to all,
>
Wojciech Mu?a schrieb am 03/27/2007 03:34 PM:
>

Fabian Braennstroem wrote:

Now, I would like to improve it by searching for different 'real'
patterns just like using 'ls' in bash. E.g. the entry
'car*.pdf' should select all pdf files with a beginning 'car'.
Does anyone have an idea, how to do it?

>

Use module glob.

>
Thanks for your help! glob works pretty good, except that I just
deleted all my lastet pdf files :-(
>
Greetings!
Fabian

Then I shudder to think what might have happened if you had used
re's! :)

-- Paul

[Diez B. Roggisch]

Re: pattern search

Paul McGuire schrieb:

On Mar 27, 10:18 am, "Diez B. Roggisch" <d...@nospam.we b.dewrote:

>Fabian Braennstroem wrote:

>>Hi,
>>I wrote a small gtk file manager, which works pretty well. Until
>>now, I am able to select different file (treeview entries) just by
>>extension (done with 'endswith'). See the little part below:
>> self.pathlist1=[ ]
>> self.patternlis t=[ ]
>> while iter:
>># print iter
>> value = model.get_value (iter, 1)
>># if value is what I'm looking for:
>> if value.endswith( "."+ pattern):
>> selection.selec t_iter(iter)
>> selection.selec t_path(n)
>> self.pathlist1. append(n)
>> self.patternlis t.append(value)
>> iter = model.iter_next (iter)
>># print value
>> n=n+1
>>Now, I would like to improve it by searching for different 'real'
>>patterns just like using 'ls' in bash. E.g. the entry
>>'car*.pdf' should select all pdf files with a beginning 'car'.
>>Does anyone have an idea, how to do it?

>Use regular expressions. They are part of the module "re". And if you use
>them, ditch your code above, and make it just search for a pattern all the
>time. Because the above is just the case of
>>
>*.ext
>>
>Diez- Hide quoted text -
>>
>- Show quoted text -

>
The glob module is a more direct tool based on the OP's example. The
example he gives works directly with glob. To use re, you'd have to
convert to something like "car.*\.pdf ", yes?
>
(Of course, re offers much more power than simple globbing. Not clear
how much more the OP was looking for.)

I'm aware of the glob-module. But it only works on files. I was under
the impression that he already has a list of files he wants to filter
instead of getting it fresh from the filesystem.

Diez

[Gabriel Genellina]

Re: pattern search

En Tue, 27 Mar 2007 18:42:15 -0300, Diez B. Roggisch <deets@nospam.w eb.de>
escribió:

Paul McGuire schrieb:

>On Mar 27, 10:18 am, "Diez B. Roggisch" <d...@nospam.we b.dewrote:

>>Fabian Braennstroem wrote:
>>> while iter:
>>> value = model.get_value (iter, 1)
>>> if value.endswith( "."+ pattern): [...]
>>>>
>>>Now, I would like to improve it by searching for different 'real'
>>>patterns just like using 'ls' in bash. E.g. the entry
>>>'car*.pdf' should select all pdf files with a beginning 'car'.
>>>Does anyone have an idea, how to do it?

>>Use regular expressions. They are part of the module "re". And if you
>>use them, ditch your code above, and make it just search for a pattern
>>all the time. Because the above is just the case of
>>*.ext

>The glob module is a more direct tool based on the OP's example. The
>example he gives works directly with glob. To use re, you'd have to
>convert to something like "car.*\.pdf ", yes?

I'm aware of the glob-module. But it only works on files. I was under
the impression that he already has a list of files he wants to filter
instead of getting it fresh from the filesystem.

In that case the best way would be to use the fnmatch module - it already
knows how to translate from car*.pdf into the right regexp. (The glob
module is like a combo os.listdir+fnma tch.filter)

--
Gabriel Genellina

[Fabian Braennstroem]

Re: pattern search

Hi,

Gabriel Genellina schrieb am 03/27/2007 10:09 PM:

En Tue, 27 Mar 2007 18:42:15 -0300, Diez B. Roggisch <deets@nospam.w eb.de>
escribió:
>

>Paul McGuire schrieb:

>>On Mar 27, 10:18 am, "Diez B. Roggisch" <d...@nospam.we b.dewrote:
>>>Fabian Braennstroem wrote:
>>>> while iter:
>>>> value = model.get_value (iter, 1)
>>>> if value.endswith( "."+ pattern): [...]
>>>>>
>>>>Now, I would like to improve it by searching for different 'real'
>>>>patterns just like using 'ls' in bash. E.g. the entry
>>>>'car*.pdf ' should select all pdf files with a beginning 'car'.
>>>>Does anyone have an idea, how to do it?

>

>>>Use regular expressions. They are part of the module "re". And if you
>>>use them, ditch your code above, and make it just search for a pattern
>>>all the time. Because the above is just the case of
>>>*.ext

>

>>The glob module is a more direct tool based on the OP's example. The
>>example he gives works directly with glob. To use re, you'd have to
>>convert to something like "car.*\.pdf ", yes?

>

>I'm aware of the glob-module. But it only works on files. I was under
>the impression that he already has a list of files he wants to filter
>instead of getting it fresh from the filesystem.

>
In that case the best way would be to use the fnmatch module - it already
knows how to translate from car*.pdf into the right regexp. (The glob
module is like a combo os.listdir+fnma tch.filter)

I have a already a list, but I 'glob' looked so easy ... maybe it is
faster to use fnmatch. When I have time I try it out...

Thanks!
Fabian

[Fabian Braennstroem]

Re: pattern search

Hi Paul,

Paul McGuire schrieb am 03/27/2007 07:19 PM:

On Mar 27, 3:13 pm, Fabian Braennstroem <f.braennstr... @gmx.dewrote:

>Hi to all,
>>
>Wojciech Mu?a schrieb am 03/27/2007 03:34 PM:
>>

>>Fabian Braennstroem wrote:
>>>Now, I would like to improve it by searching for different 'real'
>>>patterns just like using 'ls' in bash. E.g. the entry
>>>'car*.pdf' should select all pdf files with a beginning 'car'.
>>>Does anyone have an idea, how to do it?
>>Use module glob.

>Thanks for your help! glob works pretty good, except that I just
>deleted all my lastet pdf files :-(
>>
>Greetings!
>Fabian

>
Then I shudder to think what might have happened if you had used
re's! :)

A different feature it had was to copy the whole home-partition
(about 19G) into one of its own directories ... the strange thing:
it just needed seconds to do that and I did not have the permission
to all files and directories! It was pretty strange! Hopefully it
was no security bug in python...

Greetings!
Fabian