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882749a04f
This teaches the --color-words engine a more general interface that
supports two new modes:
* --word-diff=plain, inspired by the 'wdiff' utility (most similar to
'wdiff -n <old> <new>'): uses delimiters [-removed-] and {+added+}
* --word-diff=porcelain, which generates an ad-hoc machine readable
format:
- each diff unit is prefixed by [-+ ] and terminated by newline as
in unified diff
- newlines in the input are output as a line consisting only of a
tilde '~'
Both of these formats still support color if it is enabled, using it
to highlight the differences. --color-words becomes a synonym for
--word-diff=color, which is the color-only format. Also adds some
compatibility/convenience options.
Thanks to Junio C Hamano and Miles Bader for good ideas.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
66 lines
2.2 KiB
C
66 lines
2.2 KiB
C
#ifndef COLOR_H
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#define COLOR_H
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/* 2 + (2 * num_attrs) + 8 + 1 + 8 + 'm' + NUL */
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/* "\033[1;2;4;5;7;38;5;2xx;48;5;2xxm\0" */
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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 * 8 (e.g. "1;")
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* - fg color + ';' 9 (e.g. "38;5;2xx;")
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* - fg color + ';' 9 (e.g. "48;5;2xx;")
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* - terminating 'm' NUL 2
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*
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* The above overcounts attr (we only use 5 not 8) and one semicolon
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* but it is close enough.
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*/
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#define COLOR_MAXLEN 40
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/*
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* IMPORTANT: Due to the way these color codes are emulated on Windows,
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* write them only using printf(), fprintf(), and fputs(). In particular,
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* do not use puts() or write().
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*/
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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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/*
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* This variable stores the value of color.ui
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*/
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extern int git_use_color_default;
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/*
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* Use this instead of git_default_config if you need the value of color.ui.
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*/
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int git_color_default_config(const char *var, const char *value, void *cb);
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int git_config_colorbool(const char *var, const char *value, int stdout_is_tty);
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void color_parse(const char *value, const char *var, char *dst);
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void color_parse_mem(const char *value, int len, const char *var, char *dst);
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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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#endif /* COLOR_H */
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