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Merge branch 'sb/color-h-cleanup'

Devdoc update.

* sb/color-h-cleanup:
  color.h: document and modernize header
This commit is contained in:
Junio C Hamano 2018-03-06 14:54:02 -08:00
commit f2fd27c6bf
3 changed files with 34 additions and 12 deletions

View file

@ -161,11 +161,6 @@ int color_parse(const char *value, char *dst)
return color_parse_mem(value, strlen(value), dst);
}
void color_set(char *dst, const char *color_bytes)
{
xsnprintf(dst, COLOR_MAXLEN, "%s", color_bytes);
}
/*
* Write the ANSI color codes for "c" to "out"; the string should
* already have the ANSI escape code in it. "out" should have enough
@ -399,8 +394,6 @@ static int color_vfprintf(FILE *fp, const char *color, const char *fmt,
return r;
}
int color_fprintf(FILE *fp, const char *color, const char *fmt, ...)
{
va_list args;

34
color.h
View file

@ -76,22 +76,46 @@ int git_color_config(const char *var, const char *value, void *cb);
int git_color_default_config(const char *var, const char *value, void *cb);
/*
* Set the color buffer (which must be COLOR_MAXLEN bytes)
* to the raw color bytes; this is useful for initializing
* default color variables.
* Parse a config option, which can be a boolean or one of
* "never", "auto", "always". Return a constant of
* GIT_COLOR_NEVER for "never" or negative boolean,
* GIT_COLOR_ALWAYS for "always" or a positive boolean,
* and GIT_COLOR_AUTO for "auto".
*/
void color_set(char *dst, const char *color_bytes);
int git_config_colorbool(const char *var, const char *value);
/*
* Return a boolean whether to use color, where the argument 'var' is
* one of GIT_COLOR_UNKNOWN, GIT_COLOR_NEVER, GIT_COLOR_ALWAYS, GIT_COLOR_AUTO.
*/
int want_color(int var);
/*
* Translate a Git color from 'value' into a string that the terminal can
* interpret and store it into 'dst'. The Git color values are of the form
* "foreground [background] [attr]" where fore- and background can be a color
* name ("red"), a RGB code (#0xFF0000) or a 256-color-mode from the terminal.
*/
int color_parse(const char *value, char *dst);
int color_parse_mem(const char *value, int len, char *dst);
/*
* Output the formatted string in the specified color (and then reset to normal
* color so subsequent output is uncolored). Omits the color encapsulation if
* `color` is NULL. The `color_fprintf_ln` prints a new line after resetting
* the color. The `color_print_strbuf` prints the contents of the given
* strbuf (BUG: but only up to its first NUL character).
*/
__attribute__((format (printf, 3, 4)))
int color_fprintf(FILE *fp, const char *color, const char *fmt, ...);
__attribute__((format (printf, 3, 4)))
int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...);
void color_print_strbuf(FILE *fp, const char *color, const struct strbuf *sb);
/*
* Check if the given color is GIT_COLOR_NIL that means "no color selected".
* The caller needs to replace the color with the actual desired color.
*/
int color_is_nil(const char *color);
#endif /* COLOR_H */

5
grep.c
View file

@ -18,6 +18,11 @@ static void std_output(struct grep_opt *opt, const void *buf, size_t size)
fwrite(buf, size, 1, stdout);
}
static void color_set(char *dst, const char *color_bytes)
{
xsnprintf(dst, COLOR_MAXLEN, "%s", color_bytes);
}
/*
* Initialize the grep_defaults template with hardcoded defaults.
* We could let the compiler do this, but without C99 initializers