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VimDIFF - ONLY on the first field of two files ?

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philip_rhoades

VimDIFF - ONLY on the first field of two files ?

People,

I live in vim and therefore use vimdiff most of the time for my needs
but I have a use case where I only want to diff on the FIRST field of
two files ie the files have lines that look like:

[dir|file]name | [D|F] | mtime

and I need to be able to have vimdiff only working on the [dir|file]name
and ignore the rest of the line - is this possible somehow?

Thanks,

Phil.
--
Philip Rhoades

PO Box 896
Cowra NSW 2794
Australia
E-mail: [hidden email]

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Bram Moolenaar

Re: VimDIFF - ONLY on the first field of two files ?

Philip Rhoades wrote:

> I live in vim and therefore use vimdiff most of the time for my needs
> but I have a use case where I only want to diff on the FIRST field of
> two files ie the files have lines that look like:
>
> [dir|file]name | [D|F] | mtime
>
> and I need to be able to have vimdiff only working on the [dir|file]name
> and ignore the rest of the line - is this possible somehow?

This is currently not possible. And it would be more than a bit of work
to implement. At the same time, it can be very useful to be able to
diff while ignoring some text.

A first idea would be to define a pattern, replace the matched text with
spaces, create the diff, then undo the replacement. Perhaps also
highlight the ignored text. Optionally this would work the other way:
replace the not-matched text with spaces.

--
Latest survey shows that 3 out of 4 people make up 75% of the
world's population.

/// Bram Moolenaar -- [hidden email] -- http://www.Moolenaar.net \\\
/// \\\
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Charles Campbell-2

Re: VimDIFF - ONLY on the first field of two files ?

In reply to this post by philip_rhoades

'Philip Rhoades' via vim_use wrote:

> People,
>
> I live in vim and therefore use vimdiff most of the time for my needs
> but I have a use case where I only want to diff on the FIRST field of
> two files ie the files have lines that look like:
>
> [dir|file]name | [D|F] | mtime
>
> and I need to be able to have vimdiff only working on the
> [dir|file]name and ignore the rest of the line - is this possible
> somehow?

Check into the NarrowRegion plugin by Christian Brabandt
(https://www.vim.org/scripts/script.php?script_id=3075). I haven't used
it to do what you're asking for, but it seems to me that this plugin
might help you. Its worth a try, anyway.

Chip Campbell

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Christian Brabandt

Re: VimDIFF - ONLY on the first field of two files ?

In reply to this post by philip_rhoades

On Do, 01 Apr 2021, 'Philip Rhoades' via vim_use wrote:

> People,
>
> I live in vim and therefore use vimdiff most of the time for my needs but I
> have a use case where I only want to diff on the FIRST field of two files ie
> the files have lines that look like:
>
> [dir|file]name | [D|F] | mtime
>
> and I need to be able to have vimdiff only working on the [dir|file]name and
> ignore the rest of the line - is this possible somehow?
>
> Thanks,

Have a look at my plugin:
https://github.com/chrisbra/vim-diff-enhanced

The README.md has an example of that.

Best,
Christian
--
So kam ich unter die Deutschen. Ich forderte nicht viel und war
gefaßt noch weniger zu finden.
-- Johann Christian Friedrich Hölderlin

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philip_rhoades

Re: VimDIFF - ONLY on the first field of two files ?

Christian, Charles, Bram,

Thanks so much for your responses! - they are much appreciated!

Phil.

On 2021-04-02 04:01, Christian Brabandt wrote:

> On Do, 01 Apr 2021, 'Philip Rhoades' via vim_use wrote:
>
>> People,
>>
>> I live in vim and therefore use vimdiff most of the time for my needs
>> but I
>> have a use case where I only want to diff on the FIRST field of two
>> files ie
>> the files have lines that look like:
>>
>> [dir|file]name | [D|F] | mtime
>>
>> and I need to be able to have vimdiff only working on the
>> [dir|file]name and
>> ignore the rest of the line - is this possible somehow?
>>
>> Thanks,
>
> Have a look at my plugin:
> https://github.com/chrisbra/vim-diff-enhanced
>
> The README.md has an example of that.
>
> Best,
> Christian
> --
> So kam ich unter die Deutschen. Ich forderte nicht viel und war
> gefaßt noch weniger zu finden.
> -- Johann Christian Friedrich Hölderlin
>
> --

--
Philip Rhoades

PO Box 896
Cowra NSW 2794
Australia
E-mail: [hidden email]

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philip_rhoades

Re: VimDIFF - ONLY on the first field of two files ?

Christian,

I have installed your plugin, set diffopt in .vimrc and all the tests
work and

:EnhancedDiff histogram

command from your web page works but I can't get

EnhancedDiffIgnorePat ^[^;]\+;

or

EnhancedDiffIgnorePat ;[^;]\+$

to work with some manually created files like on your web page.

I tried looking at test.sh but I don't understand:

-c "if filereadable('vimrc') | so vimrc | endif'"

- what is "so"? - and there appears to be an unpaired single quote?

Any help appreciated!

Thanks,

Phil.

On 2021-04-02 07:22, 'Philip Rhoades' via vim_use wrote:

> Christian, Charles, Bram,
>
> Thanks so much for your responses! - they are much appreciated!
>
> Phil.
>
>
> On 2021-04-02 04:01, Christian Brabandt wrote:
>> On Do, 01 Apr 2021, 'Philip Rhoades' via vim_use wrote:
>>
>>> People,
>>>
>>> I live in vim and therefore use vimdiff most of the time for my needs
>>> but I
>>> have a use case where I only want to diff on the FIRST field of two
>>> files ie
>>> the files have lines that look like:
>>>
>>> [dir|file]name | [D|F] | mtime
>>>
>>> and I need to be able to have vimdiff only working on the
>>> [dir|file]name and
>>> ignore the rest of the line - is this possible somehow?
>>>
>>> Thanks,
>>
>> Have a look at my plugin:
>> https://github.com/chrisbra/vim-diff-enhanced
>>
>> The README.md has an example of that.
>>
>> Best,
>> Christian
>> --
>> So kam ich unter die Deutschen. Ich forderte nicht viel und war
>> gefaßt noch weniger zu finden.
>> -- Johann Christian Friedrich Hölderlin
>>
>> --
>
> --
> Philip Rhoades
>
> PO Box 896
> Cowra NSW 2794
> Australia
> E-mail: [hidden email]
>
> --

rwmit...@gmail.com

Re: VimDIFF - ONLY on the first field of two files ?

'so' would be short for 'source'

On Friday, April 2, 2021 at 7:55:16 AM UTC-4 Philip Rhoades wrote:

Christian,

I have installed your plugin, set diffopt in .vimrc and all the tests
work and

:EnhancedDiff histogram

command from your web page works but I can't get

EnhancedDiffIgnorePat ^[^;]\+;

or

EnhancedDiffIgnorePat ;[^;]\+$

to work with some manually created files like on your web page.

I tried looking at test.sh but I don't understand:

-c "if filereadable('vimrc') | so vimrc | endif'"

- what is "so"? - and there appears to be an unpaired single quote?

Any help appreciated!

Thanks,

Phil.

On 2021-04-02 07:22, 'Philip Rhoades' via vim_use wrote:

> Christian, Charles, Bram,
>
> Thanks so much for your responses! - they are much appreciated!
>
> Phil.
>
>
> On 2021-04-02 04:01, Christian Brabandt wrote:
>> On Do, 01 Apr 2021, 'Philip Rhoades' via vim_use wrote:
>>
>>> People,
>>>
>>> I live in vim and therefore use vimdiff most of the time for my needs
>>> but I
>>> have a use case where I only want to diff on the FIRST field of two
>>> files ie
>>> the files have lines that look like:
>>>
>>> [dir|file]name | [D|F] | mtime
>>>
>>> and I need to be able to have vimdiff only working on the
>>> [dir|file]name and
>>> ignore the rest of the line - is this possible somehow?
>>>
>>> Thanks,
>>
>> Have a look at my plugin:
>> https://github.com/chrisbra/vim-diff-enhanced
>>
>> The README.md has an example of that.
>>
>> Best,
>> Christian
>> --
>> So kam ich unter die Deutschen. Ich forderte nicht viel und war
>> gefaßt noch weniger zu finden.
>> -- Johann Christian Friedrich Hölderlin
>>
>> --
>
> --
> Philip Rhoades
>
> PO Box 896
> Cowra NSW 2794
> Australia
> E-mail: [hidden email]
>
> --

--
Philip Rhoades

PO Box 896
Cowra NSW 2794
Australia
E-mail: [hidden email]

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philip_rhoades

Re: VimDIFF - ONLY on the first field of two files ?

rwm,

On 2021-04-03 00:07, [hidden email] wrote:
> 'so' would be short for 'source'

Ah . . of course . . thanks!

Phil.

> On Friday, April 2, 2021 at 7:55:16 AM UTC-4 Philip Rhoades wrote:
>
>> Christian,
>>
>> I have installed your plugin, set diffopt in .vimrc and all the
>> tests
>> work and
>>
>> :EnhancedDiff histogram
>>
>> command from your web page works but I can't get
>>
>> EnhancedDiffIgnorePat ^[^;]\+;
>>
>> or
>>
>> EnhancedDiffIgnorePat ;[^;]\+$
>>
>> to work with some manually created files like on your web page.
>>
>> I tried looking at test.sh but I don't understand:
>>
>> -c "if filereadable('vimrc') | so vimrc | endif'"
>>
>> - what is "so"? - and there appears to be an unpaired single quote?
>>
>> Any help appreciated!
>>
>> Thanks,
>>
>> Phil.
>>
>> On 2021-04-02 07:22, 'Philip Rhoades' via vim_use wrote:
>>> Christian, Charles, Bram,
>>>
>>> Thanks so much for your responses! - they are much appreciated!
>>>
>>> Phil.
>>>
>>>
>>> On 2021-04-02 04:01, Christian Brabandt wrote:
>>>> On Do, 01 Apr 2021, 'Philip Rhoades' via vim_use wrote:
>>>>
>>>>> People,
>>>>>
>>>>> I live in vim and therefore use vimdiff most of the time for my
>> needs
>>>>> but I
>>>>> have a use case where I only want to diff on the FIRST field of
>> two
>>>>> files ie
>>>>> the files have lines that look like:
>>>>>
>>>>> [dir|file]name | [D|F] | mtime
>>>>>
>>>>> and I need to be able to have vimdiff only working on the
>>>>> [dir|file]name and
>>>>> ignore the rest of the line - is this possible somehow?
>>>>>
>>>>> Thanks,
>>>>
>>>> Have a look at my plugin:
>>>> https://github.com/chrisbra/vim-diff-enhanced
>>>>
>>>> The README.md has an example of that.
>>>>
>>>> Best,
>>>> Christian
>>>> --
>>>> So kam ich unter die Deutschen. Ich forderte nicht viel und war
>>>> gefaßt noch weniger zu finden.
>>>> -- Johann Christian Friedrich Hölderlin
>>>>
>>>> --
>>>
>>> --
>>> Philip Rhoades
>>>
>>> PO Box 896
>>> Cowra NSW 2794
>>> Australia
>>> E-mail: [hidden email]
>>>
>>> --
>>
>> --
>> Philip Rhoades
>>
>> PO Box 896
>> Cowra NSW 2794
>> Australia
>> E-mail: [hidden email]
>
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