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57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/* Output colorization.
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Copyright 2011-2026 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Without this pragma, gcc 4.7.0 20120102 suggests that the
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init_colorize function might be candidate for attribute 'const' */
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#if (__GNUC__ == 4 && 6 <= __GNUC_MINOR__) || 4 < __GNUC__
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# pragma GCC diagnostic ignored "-Wsuggest-attribute=const"
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#endif
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#include <config.h>
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#include "colorize.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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/* Return non-zero if we should highlight matches in output to file
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descriptor FD. */
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int
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should_colorize (void)
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{
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char const *t = getenv ("TERM");
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return t && strcmp (t, "dumb") != 0;
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}
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void init_colorize (void) { }
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/* Start a colorized text attribute on stdout using the SGR_START
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format; the attribute is specified by SGR_SEQ. */
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void
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print_start_colorize (char const *sgr_start, char const *sgr_seq)
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{
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printf (sgr_start, sgr_seq);
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}
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/* Restore the normal text attribute using the SGR_END string. */
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void
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print_end_colorize (char const *sgr_end)
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{
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fputs (sgr_end, stdout);
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}
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