1 files changed, 58 insertions, 0 deletions
diff --git a/lib/colorize-posix.c b/lib/colorize-posix.c
new file mode 100644
index 0000000..eb66c1b
--- /dev/null
+++ b/lib/colorize-posix.c
@@ -0,0 +1,58 @@
+/* Output colorization.
+   Copyright 2011-2016 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
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+   02110-1301, USA.  */
+
+/* Without this pragma, gcc 4.7.0 20120102 suggests that the
+   init_colorize function might be candidate for attribute 'const'  */
+#if (__GNUC__ == 4 && 6 <= __GNUC_MINOR__) || 4 < __GNUC__
+# pragma GCC diagnostic ignored "-Wsuggest-attribute=const"
+#endif
+
+#include <config.h>
+
+#include "colorize.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/* Return non-zero if we should highlight matches in output to file
+   descriptor FD.  */
+int
+should_colorize (void)
+{
+  char const *t = getenv ("TERM");
+  return t && strcmp (t, "dumb") != 0;
+}
+
+void init_colorize (void) { }
+
+/* Start a colorized text attribute on stdout using the SGR_START
+   format; the attribute is specified by SGR_SEQ.  */
+void
+print_start_colorize (char const *sgr_start, char const *sgr_seq)
+{
+  printf (sgr_start, sgr_seq);
+}
+
+/* Restore the normal text attribute using the SGR_END string.  */
+void
+print_end_colorize (char const *sgr_end)
+{
+  fputs (sgr_end, stdout);
+}