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From: "Boyd Stephen Smith Jr." <bss@iguanasuicide•net>
To: Johannes Schindelin <Johannes.Schindelin@gmx•de>
Cc: git@vger•kernel.org
Subject: Re: [PATCH] diff: Support diff.color-words config option
Date: Tue, 20 Jan 2009 10:52:58 -0600	[thread overview]
Message-ID: <200901201053.03256.bss@iguanasuicide.net> (raw)
In-Reply-To: <alpine.DEB.1.00.0901201058520.3586@pacific.mpi-cbg.de>

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On Tuesday 2009 January 20 04:02:00 you wrote:
>On Mon, 19 Jan 2009, Boyd Stephen Smith Jr. wrote:
>> diff --git a/diff.c b/diff.c
>> index 9fcde96..c53e1d1 100644
>> --- a/diff.c
>> +++ b/diff.c
>> @@ -23,6 +23,7 @@ static int diff_detect_rename_default;
>>  static int diff_rename_limit_default = 200;
>>  static int diff_suppress_blank_empty;
>>  int diff_use_color_default = -1;
>> +static const char *diff_color_words_cfg = NULL;
>>  static const char *external_diff_cmd_cfg;
>
>Guess why external_diff_cmd_cfg is not set to NULL?  All variables
>defined outside a function are set to all-zero anyway.

I suppose I just initialize variables by reflex, having been bitten with too 
many sometimes-crashes due to variables that were usually-zero.  Assuming C 
does guarantee that it is zeroed, I'll drop the " = NULL" line noise in the 
next version.

>> @@ -92,6 +93,8 @@ int git_diff_ui_config(const char *var, const char
>> *value, void *cb) }
>>  	if (!strcmp(var, "diff.external"))
>>  		return git_config_string(&external_diff_cmd_cfg, var, value);
>> +	if (!strcmp(var, "diff.color-words"))
>
>I'd call it diff.wordregex, because that's what it is.

I don't like runtogetherwords because they are hard to read for me; I tend to 
choose the wrong word breaks if it is ambiguous.  There are other 
configuration values that use camelCaseWords so I will convert over to using 
that.

I thought "word regex" made more sense, but I wanted to match the command-line 
option.  Will change.

>> @@ -1550,6 +1553,8 @@ static void builtin_diff(const char *name_a,
>>  				o->word_regex = userdiff_word_regex(one);
>>  			if (!o->word_regex)
>>  				o->word_regex = userdiff_word_regex(two);
>> +			if (!o->word_regex)
>> +				o->word_regex = diff_color_words_cfg;
>
>IMHO this is the wrong order.  config should not override attributes,
>which are by definition more specific.

You are up too late Dscho.  This ordering makes the config not override 
attributes.  If one of the files has a diff driver, o->word_regex will be set 
to it (and become non-NULL).  That will prevent execution of the body of the 
added "if (!o->word_regex)" -- preventing the configuration option from being 
used.

>> diff --git a/t/t4034-diff-words.sh b/t/t4034-diff-words.sh
>> index 6ebce9d..a207d9e 100755
>> --- a/t/t4034-diff-words.sh
>> +++ b/t/t4034-diff-words.sh
>> @@ -105,7 +105,7 @@ a = b + c<RESET>
>>  EOF
>>  cp expect.non-whitespace-is-word expect
>>
>> -test_expect_failure 'use default supplied by config' '
>> +test_expect_success 'use default supplied by config' '
>
>Let's squash the two, okay?

Will do.  I expected the code changes to be larger than the test, and when I 
finished it was completely the other way.  My next patch will be all-in-one.

Thanks for your feedback.
-- 
Boyd Stephen Smith Jr.                     ,= ,-_-. =. 
bss@iguanasuicide•net                     ((_/)o o(\_))
ICQ: 514984 YM/AIM: DaTwinkDaddy           `-'(. .)`-' 
http://iguanasuicide.net/                      \_/     

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  reply	other threads:[~2009-01-20 16:53 UTC|newest]

Thread overview: 109+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-11 19:58 [PATCH 0/4] refactor the --color-words to make it more hackable Johannes Schindelin
2009-01-11 19:59 ` [PATCH 1/4] Add color_fwrite(), a function coloring each line individually Johannes Schindelin
2009-01-11 22:43   ` Junio C Hamano
2009-01-11 23:49     ` Johannes Schindelin
2009-01-11 23:49       ` [PATCH v2 " Johannes Schindelin
2009-01-12  1:27         ` Jakub Narebski
2009-01-11 19:59 ` [PATCH 2/4] color-words: refactor word splitting and use ALLOC_GROW() Johannes Schindelin
2009-01-11 19:59 ` [PATCH 3/4] color-words: refactor to allow for 0-character word boundaries Johannes Schindelin
2009-01-11 23:08   ` Junio C Hamano
2009-01-11 23:38     ` Johannes Schindelin
2009-01-12  8:47   ` Thomas Rast
2009-01-12  9:36     ` Junio C Hamano
2009-01-14 17:49       ` [PATCH take 3 0/4] color-words improvements Johannes Schindelin
2009-01-14 17:50         ` [PATCH 1/4] Add color_fwrite_lines(), a function coloring each line individually Johannes Schindelin
2009-01-14 17:50         ` [PATCH 2/4] color-words: refactor word splitting and use ALLOC_GROW() Johannes Schindelin
2009-01-14 17:51         ` [PATCH 3/4] color-words: change algorithm to allow for 0-character word boundaries Johannes Schindelin
2009-01-14 18:08           ` Johannes Schindelin
2009-01-14 17:51         ` [PATCH 4/4] color-words: take an optional regular expression describing words Johannes Schindelin
2009-01-14 19:55           ` Thomas Rast
2009-01-14 18:54         ` [PATCH take 3 0/4] color-words improvements Teemu Likonen
2009-01-14 18:57           ` Teemu Likonen
2009-01-14 19:28             ` Johannes Schindelin
2009-01-14 19:32               ` Johannes Schindelin
2009-01-14 19:58           ` Thomas Rast
2009-01-14 22:06             ` Johannes Schindelin
2009-01-14 22:11               ` Thomas Rast
2009-01-14 22:24               ` Boyd Stephen Smith Jr.
2009-01-15  4:56               ` Teemu Likonen
2009-01-15 12:41                 ` Johannes Schindelin
2009-01-15 13:03                   ` Teemu Likonen
2009-01-15 13:27                     ` Thomas Rast
2009-01-15 18:15                   ` Junio C Hamano
2009-01-15 19:25                     ` Johannes Schindelin
2009-01-16  0:10                       ` Santi Béjar
2009-01-16  1:37                         ` Junio C Hamano
2009-01-16  1:42                         ` Boyd Stephen Smith Jr.
2009-01-16  1:55                         ` Johannes Schindelin
2009-01-16  9:02                           ` Santi Béjar
2009-01-16 11:57                             ` Johannes Schindelin
2009-01-16 12:01                             ` Santi Béjar
2009-01-16 12:40                               ` Johannes Schindelin
2009-01-16 19:04                               ` Thomas Rast
2009-01-16 21:09                                 ` Johannes Schindelin
2009-01-17 16:29                                   ` [PATCH v4 0/7] customizable --color-words Thomas Rast
2009-01-17 16:29                                     ` [PATCH v4 1/7] Add color_fwrite_lines(), a function coloring each line individually Thomas Rast
2009-01-17 16:29                                       ` [PATCH v4 2/7] color-words: refactor word splitting and use ALLOC_GROW() Thomas Rast
2009-01-17 16:29                                         ` [PATCH v4 3/7] color-words: change algorithm to allow for 0-character word boundaries Thomas Rast
2009-01-17 16:29                                           ` [PATCH v4 4/7] color-words: take an optional regular expression describing words Thomas Rast
2009-01-17 16:29                                             ` [PATCH v4 5/7] color-words: enable REG_NEWLINE to help user Thomas Rast
2009-01-17 16:29                                               ` [PATCH v4 6/7] color-words: expand docs with precise semantics Thomas Rast
2009-01-17 16:29                                                 ` [PATCH v4 7/7] color-words: make regex configurable via attributes Thomas Rast
2009-01-18 15:05                                     ` [PATCH v4 0/7] customizable --color-words Santi Béjar
2009-01-18 15:29                                       ` Santi Béjar
2009-01-19 22:47                                     ` Santi Béjar
2009-01-19 23:35                                       ` Johannes Schindelin
2009-01-20  2:17                                         ` [PATCH] Add tests for diff.color-words configuration option Boyd Stephen Smith Jr.
2009-01-20  3:45                                           ` [PATCH] diff: Support diff.color-words config option Boyd Stephen Smith Jr.
2009-01-20  6:59                                             ` Junio C Hamano
2009-01-20 17:42                                               ` Markus Heidelberg
2009-01-20 17:58                                                 ` Boyd Stephen Smith Jr.
2009-01-20 21:08                                                 ` Johannes Schindelin
2009-01-21 10:27                                                   ` Junio C Hamano
2009-01-21 19:37                                                   ` Markus Heidelberg
2009-01-20 10:02                                             ` Johannes Schindelin
2009-01-20 16:52                                               ` Boyd Stephen Smith Jr. [this message]
2009-01-20 17:14                                                 ` Johannes Schindelin
2009-01-20 17:09                                               ` Junio C Hamano
2009-01-20 17:28                                                 ` Johannes Schindelin
2009-01-20 20:27                                                   ` Junio C Hamano
2009-01-20 21:02                                                     ` Johannes Schindelin
2009-01-21  3:46                                               ` [PATCH] color-words: " Boyd Stephen Smith Jr.
2009-01-21  4:59                                                 ` [PATCH] Change the spelling of "wordregex" Boyd Stephen Smith Jr.
2009-01-21  8:26                                                   ` Johannes Schindelin
2009-01-21  9:22                                                     ` Thomas Rast
2009-01-21 15:33                                                     ` Boyd Stephen Smith Jr.
2009-01-21  8:25                                                 ` [PATCH] color-words: Support diff.color-words config option Johannes Schindelin
2009-01-21 16:09                                                   ` Boyd Stephen Smith Jr.
2009-01-21 10:27                                                 ` [PATCH] color-words: Support diff.wordregex " Junio C Hamano
2009-01-20 14:38                                             ` [PATCH] diff: Support diff.color-words " Jakub Narebski
2009-01-20  9:58                                           ` [PATCH] Add tests for diff.color-words configuration option Johannes Schindelin
2009-01-20 16:34                                             ` Boyd Stephen Smith Jr.
2009-01-20 16:54                                               ` Johannes Schindelin
2009-01-16 16:11                             ` [PATCH take 3 0/4] color-words improvements Boyd Stephen Smith Jr.
2009-01-14 19:46         ` [PATCH] color-words: make regex configurable via attributes Thomas Rast
2009-01-14 20:12           ` Johannes Schindelin
2009-01-14 20:17             ` Thomas Rast
2009-01-14 20:44             ` [PATCH replacement for take 3 3/4] color-words: change algorithm to allow for 0-character word boundaries Johannes Schindelin
2009-01-14 20:46               ` [PATCH replacement for take 3 4/4] color-words: take an optional regular expression describing words Johannes Schindelin
2009-01-15  0:32                 ` Thomas Rast
2009-01-15  1:12                   ` Johannes Schindelin
2009-01-15  1:36                     ` Johannes Schindelin
2009-01-15  8:30                       ` Thomas Rast
2009-01-15 10:40                         ` Thomas Rast
2009-01-15 12:54                           ` Johannes Schindelin
2009-01-14 22:26             ` [PATCH 1/4] color-words: fix quoting in t4034 Thomas Rast
2009-01-14 22:41               ` Johannes Schindelin
2009-01-14 22:26             ` [PATCH 2/4] color-words: enable REG_NEWLINE to help user Thomas Rast
2009-01-14 22:26             ` [PATCH 3/4] color-words: expand docs with precise semantics Thomas Rast
2009-01-14 22:26             ` [PATCH 4/4] color-words: make regex configurable via attributes Thomas Rast
2009-01-15  1:33               ` Johannes Schindelin
2009-01-15  1:43                 ` Johannes Schindelin
2009-01-14 20:04         ` [PATCH take 3 0/4] color-words improvements Thomas Rast
2009-01-14 21:07           ` Johannes Schindelin
2009-01-14 22:37             ` Thomas Rast
2009-01-11 20:00 ` [PATCH 4/4] color-words: take an optional regular expression describing words Johannes Schindelin
2009-01-11 21:53 ` [PATCH 0/4] refactor the --color-words to make it more hackable Thomas Rast
2009-01-11 23:02   ` Johannes Schindelin
2009-01-12  6:25     ` Thomas Rast
2009-01-14 13:00 ` Santi Béjar

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