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124 lines
4.5 KiB
124 lines
4.5 KiB
#ifndef COLOR_H |
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#define COLOR_H |
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struct strbuf; |
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/* |
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* The maximum length of ANSI color sequence we would generate: |
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* - leading ESC '[' 2 |
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* - attr + ';' 2 * num_attr (e.g. "1;") |
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* - no-attr + ';' 3 * num_attr (e.g. "22;") |
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* - fg color + ';' 17 (e.g. "38;2;255;255;255;") |
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* - bg color + ';' 17 (e.g. "48;2;255;255;255;") |
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* - terminating 'm' NUL 2 |
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* |
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* The above overcounts by one semicolon but it is close enough. |
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* |
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* The space for attributes is also slightly overallocated, as |
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* the negation for some attributes is the same (e.g., nobold and nodim). |
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* |
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* We allocate space for 7 attributes. |
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*/ |
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#define COLOR_MAXLEN 75 |
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#define GIT_COLOR_NORMAL "" |
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#define GIT_COLOR_RESET "\033[m" |
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#define GIT_COLOR_BOLD "\033[1m" |
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#define GIT_COLOR_RED "\033[31m" |
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#define GIT_COLOR_GREEN "\033[32m" |
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#define GIT_COLOR_YELLOW "\033[33m" |
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#define GIT_COLOR_BLUE "\033[34m" |
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#define GIT_COLOR_MAGENTA "\033[35m" |
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#define GIT_COLOR_CYAN "\033[36m" |
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#define GIT_COLOR_BOLD_RED "\033[1;31m" |
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#define GIT_COLOR_BOLD_GREEN "\033[1;32m" |
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#define GIT_COLOR_BOLD_YELLOW "\033[1;33m" |
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#define GIT_COLOR_BOLD_BLUE "\033[1;34m" |
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#define GIT_COLOR_BOLD_MAGENTA "\033[1;35m" |
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#define GIT_COLOR_BOLD_CYAN "\033[1;36m" |
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#define GIT_COLOR_BG_RED "\033[41m" |
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#define GIT_COLOR_BG_GREEN "\033[42m" |
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#define GIT_COLOR_BG_YELLOW "\033[43m" |
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#define GIT_COLOR_BG_BLUE "\033[44m" |
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#define GIT_COLOR_BG_MAGENTA "\033[45m" |
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#define GIT_COLOR_BG_CYAN "\033[46m" |
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#define GIT_COLOR_FAINT "\033[2m" |
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#define GIT_COLOR_FAINT_ITALIC "\033[2;3m" |
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#define GIT_COLOR_REVERSE "\033[7m" |
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/* A special value meaning "no color selected" */ |
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#define GIT_COLOR_NIL "NIL" |
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/* |
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* The first three are chosen to match common usage in the code, and what is |
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* returned from git_config_colorbool. The "auto" value can be returned from |
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* config_colorbool, and will be converted by want_color() into either 0 or 1. |
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*/ |
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#define GIT_COLOR_UNKNOWN -1 |
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#define GIT_COLOR_NEVER 0 |
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#define GIT_COLOR_ALWAYS 1 |
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#define GIT_COLOR_AUTO 2 |
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/* A default list of colors to use for commit graphs and show-branch output */ |
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extern const char *column_colors_ansi[]; |
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extern const int column_colors_ansi_max; |
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/* |
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* Generally the color code will lazily figure this out itself, but |
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* this provides a mechanism for callers to override autodetection. |
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*/ |
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extern int color_stdout_is_tty; |
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/* |
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* Use the first one if you need only color config; the second is a convenience |
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* if you are just going to change to git_default_config, too. |
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*/ |
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int git_color_config(const char *var, const char *value, void *cb); |
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int git_color_default_config(const char *var, const char *value, void *cb); |
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/* |
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* Parse a config option, which can be a boolean or one of |
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* "never", "auto", "always". Return a constant of |
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* GIT_COLOR_NEVER for "never" or negative boolean, |
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* GIT_COLOR_ALWAYS for "always" or a positive boolean, |
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* and GIT_COLOR_AUTO for "auto". |
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*/ |
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int git_config_colorbool(const char *var, const char *value); |
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/* |
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* Return a boolean whether to use color, where the argument 'var' is |
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* one of GIT_COLOR_UNKNOWN, GIT_COLOR_NEVER, GIT_COLOR_ALWAYS, GIT_COLOR_AUTO. |
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*/ |
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int want_color_fd(int fd, int var); |
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#define want_color(colorbool) want_color_fd(1, (colorbool)) |
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#define want_color_stderr(colorbool) want_color_fd(2, (colorbool)) |
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/* |
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* Translate a Git color from 'value' into a string that the terminal can |
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* interpret and store it into 'dst'. The Git color values are of the form |
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* "foreground [background] [attr]" where fore- and background can be a color |
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* name ("red"), a RGB code (#0xFF0000) or a 256-color-mode from the terminal. |
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*/ |
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int color_parse(const char *value, char *dst); |
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int color_parse_mem(const char *value, int len, char *dst); |
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/* |
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* Output the formatted string in the specified color (and then reset to normal |
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* color so subsequent output is uncolored). Omits the color encapsulation if |
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* `color` is NULL. The `color_fprintf_ln` prints a new line after resetting |
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* the color. The `color_print_strbuf` prints the contents of the given |
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* strbuf (BUG: but only up to its first NUL character). |
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*/ |
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__attribute__((format (printf, 3, 4))) |
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int color_fprintf(FILE *fp, const char *color, const char *fmt, ...); |
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__attribute__((format (printf, 3, 4))) |
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int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...); |
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void color_print_strbuf(FILE *fp, const char *color, const struct strbuf *sb); |
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/* |
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* Check if the given color is GIT_COLOR_NIL that means "no color selected". |
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* The caller needs to replace the color with the actual desired color. |
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*/ |
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int color_is_nil(const char *color); |
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#endif /* COLOR_H */
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