linux-kernel - Re: [PATCH 2/4] perf tools: Separate out code setting ground colors from ui_browser__color

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Date:	Tue, 10 May 2016 20:33:04 +0900
From:	Taeung Song <treeze.taeung@...il.com>
To:	Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
Cc:	linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Subject: Re: [PATCH 2/4] perf tools: Separate out code setting ground colors
 from ui_browser__color_config

Hi, Arnaldo :)

On 05/10/2016 02:17 AM, Arnaldo Carvalho de Melo wrote:
> Em Mon, May 09, 2016 at 08:41:47PM +0900, Taeung Song escreveu:
>> ui_browser__color_config() set foreground and background
>> colors values in ui_browser__colorsets.
>
> "ground colors" sounds strange, I guess referreing to them as "*colors"
> or "{back,fore}ground colors" is more appropriate, replace "gcolors"
> with "colors" too, please.

I got it.

>> But it can be reused by other functions so make ui_browser__config_gcolors()
>> bringing it from ui_browser__color_config().
>>
>> Cc: Namhyung Kim <namhyung@...nel.org>
>> Cc: Jiri Olsa <jolsa@...nel.org>
>> Signed-off-by: Taeung Song <treeze.taeung@...il.com>
>> ---
>>   tools/perf/ui/browser.c | 43 ++++++++++++++++++++++++++-----------------
>>   1 file changed, 26 insertions(+), 17 deletions(-)
>>
>> diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
>> index af68a9d..a477867 100644
>> --- a/tools/perf/ui/browser.c
>> +++ b/tools/perf/ui/browser.c
>> @@ -553,12 +553,33 @@ static struct ui_browser_colorset {
>>   	}
>>   };
>>
>> +static int ui_browser__config_gcolors(struct ui_browser_colorset *ui_browser_color,
>> +				      const char *value)
>> +{
>> +	char *fg = NULL, *bg;
>> +
>> +	fg = strdup(value);
>> +	if (fg == NULL)
>> +		return -1;
>> +
>> +	bg = strchr(fg, ',');
>> +	if (bg == NULL) {
>> +		free(fg);
>> +		return -1;
>> +	}
>> +
>> +	*bg = '\0';
>
> Isn't the above strtok()?
>
>> +	while (isspace(*++bg));
>
> Isn't this ltrim()?

I modified it like below and retested it !


diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index a477867..c905445 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -553,8 +553,8 @@ static struct ui_browser_colorset {
          }
  };

-static int ui_browser__config_gcolors(struct ui_browser_colorset 
*ui_browser_color,
-                                      const char *value)
+static int ui_browser__config_colors(struct ui_browser_colorset 
*ui_browser_color,
+                                     const char *value)
  {
          char *fg = NULL, *bg;

@@ -562,14 +562,12 @@ static int ui_browser__config_gcolors(struct 
ui_browser_colorset *ui_browser_col
          if (fg == NULL)
                  return -1;

-        bg = strchr(fg, ',');
+        bg = strtok(fg, ",");
          if (bg == NULL) {
                  free(fg);
                  return -1;
          }
-
-        *bg = '\0';
-        while (isspace(*++bg));
+        ltrim(bg);

          ui_browser_color->fg = fg;
          ui_browser_color->bg = bg;
@@ -591,7 +589,7 @@ static int ui_browser__color_config(const char *var, 
const char *value,
                  if (strcmp(ui_browser__colorsets[i].name, name) != 0)
                          continue;

-                ret = 
ui_browser__config_gcolors(&ui_browser__colorsets[i], value);
+                ret = 
ui_browser__config_colors(&ui_browser__colorsets[i], value);
                  break;
          }


I'll send this modified patch with v2


Thanks,
Taeung