/* Output colorization.
- Copyright (C) 2011-2016 Free Software Foundation, Inc.
+ Copyright (C) 2011-2019 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include "system.h"
#include "diagnostic-color.h"
-/* Select Graphic Rendition (SGR, "\33[...m") strings. */
-/* Also Erase in Line (EL) to Right ("\33[K") by default. */
-/* Why have EL to Right after SGR?
- -- The behavior of line-wrapping when at the bottom of the
- terminal screen and at the end of the current line is often
- such that a new line is introduced, entirely cleared with
- the current background color which may be different from the
- default one (see the boolean back_color_erase terminfo(5)
- capability), thus scrolling the display by one line.
- The end of this new line will stay in this background color
- even after reverting to the default background color with
- "\33[m', unless it is explicitly cleared again with "\33[K"
- (which is the behavior the user would instinctively expect
- from the whole thing). There may be some unavoidable
- background-color flicker at the end of this new line because
- of this (when timing with the monitor's redraw is just right).
- -- The behavior of HT (tab, "\t") is usually the same as that of
- Cursor Forward Tabulation (CHT) with a default parameter
- of 1 ("\33[I"), i.e., it performs pure movement to the next
- tab stop, without any clearing of either content or screen
- attributes (including background color); try
- printf 'asdfqwerzxcv\rASDF\tZXCV\n'
- in a bash(1) shell to demonstrate this. This is not what the
- user would instinctively expect of HT (but is ok for CHT).
- The instinctive behavior would include clearing the terminal
- cells that are skipped over by HT with blank cells in the
- current screen attributes, including background color;
- the boolean dest_tabs_magic_smso terminfo(5) capability
- indicates this saner behavior for HT, but only some rare
- terminals have it (although it also indicates a special
- glitch with standout mode in the Teleray terminal for which
- it was initially introduced). The remedy is to add "\33K"
- after each SGR sequence, be it START (to fix the behavior
- of any HT after that before another SGR) or END (to fix the
- behavior of an HT in default background color that would
- follow a line-wrapping at the bottom of the screen in another
- background color, and to complement doing it after START).
- Piping GCC's output through a pager such as less(1) avoids
- any HT problems since the pager performs tab expansion.
-
- Generic disadvantages of this remedy are:
- -- Some very rare terminals might support SGR but not EL (nobody
- will use "gcc -fdiagnostics-color" on a terminal that does not
- support SGR in the first place).
- -- Having these extra control sequences might somewhat complicate
- the task of any program trying to parse "gcc -fdiagnostics-color"
- output in order to extract structuring information from it.
- A specific disadvantage to doing it after SGR START is:
- -- Even more possible background color flicker (when timing
- with the monitor's redraw is just right), even when not at the
- bottom of the screen.
- There are no additional disadvantages specific to doing it after
- SGR END.
-
- It would be impractical for GCC to become a full-fledged
- terminal program linked against ncurses or the like, so it will
- not detect terminfo(5) capabilities. */
-#define COLOR_SEPARATOR ";"
-#define COLOR_NONE "00"
-#define COLOR_BOLD "01"
-#define COLOR_UNDERSCORE "04"
-#define COLOR_BLINK "05"
-#define COLOR_REVERSE "07"
-#define COLOR_FG_BLACK "30"
-#define COLOR_FG_RED "31"
-#define COLOR_FG_GREEN "32"
-#define COLOR_FG_YELLOW "33"
-#define COLOR_FG_BLUE "34"
-#define COLOR_FG_MAGENTA "35"
-#define COLOR_FG_CYAN "36"
-#define COLOR_FG_WHITE "37"
-#define COLOR_BG_BLACK "40"
-#define COLOR_BG_RED "41"
-#define COLOR_BG_GREEN "42"
-#define COLOR_BG_YELLOW "43"
-#define COLOR_BG_BLUE "44"
-#define COLOR_BG_MAGENTA "45"
-#define COLOR_BG_CYAN "46"
-#define COLOR_BG_WHITE "47"
-#define SGR_START "\33["
-#define SGR_END "m\33[K"
-#define SGR_SEQ(str) SGR_START str SGR_END
-#define SGR_RESET SGR_SEQ("")
+#ifdef __MINGW32__
+# include <windows.h>
+#endif
+#include "color-macros.h"
/* The context and logic for choosing default --color screen attributes
(foreground and background colors, etc.) are the following.
{ "quote", SGR_SEQ (COLOR_BOLD), 5, false },
{ "fixit-insert", SGR_SEQ (COLOR_FG_GREEN), 12, false },
{ "fixit-delete", SGR_SEQ (COLOR_FG_RED), 12, false },
+ { "diff-filename", SGR_SEQ (COLOR_BOLD), 13, false },
+ { "diff-hunk", SGR_SEQ (COLOR_FG_CYAN), 9, false },
+ { "diff-delete", SGR_SEQ (COLOR_FG_RED), 11, false },
+ { "diff-insert", SGR_SEQ (COLOR_FG_GREEN), 11, false },
+ { "type-diff", SGR_SEQ (COLOR_BOLD COLOR_SEPARATOR COLOR_FG_GREEN), 9, false },
{ NULL, NULL, 0, false }
};
/* Parse GCC_COLORS. The default would look like:
GCC_COLORS='error=01;31:warning=01;35:note=01;36:\
range1=32:range2=34:locus=01:quote=01:\
- fixit-insert=32:fixit-delete=31'
+ fixit-insert=32:fixit-delete=31:'\
+ diff-filename=01:diff-hunk=32:diff-delete=31:diff-insert=32:\
+ type-diff=01;32'
No character escaping is needed or supported. */
static bool
parse_gcc_colors (void)
return true;
}
-#if defined(_WIN32)
-bool
-colorize_init (diagnostic_color_rule_t)
-{
- return false;
-}
-#else
-
/* Return true if we should use color when in auto mode, false otherwise. */
static bool
should_colorize (void)
{
+#ifdef __MINGW32__
+ /* For consistency reasons, one should check the handle returned by
+ _get_osfhandle(_fileno(stderr)) because the function
+ pp_write_text_to_stream() in pretty-print.c calls fputs() on
+ that stream. However, the code below for non-Windows doesn't seem
+ to care about it either... */
+ HANDLE h;
+ DWORD m;
+
+ h = GetStdHandle (STD_ERROR_HANDLE);
+ return (h != INVALID_HANDLE_VALUE) && (h != NULL)
+ && GetConsoleMode (h, &m);
+#else
char const *t = getenv ("TERM");
return t && strcmp (t, "dumb") != 0 && isatty (STDERR_FILENO);
+#endif
}
-
bool
colorize_init (diagnostic_color_rule_t rule)
{
gcc_unreachable ();
}
}
-#endif
projects / thirdparty / gcc.git / blobdiff