Adding upstream version 2.38.1.upstream/2.38.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 296 insertions, 0 deletions

diff --git a/text-utils/colcrt.c b/text-utils/colcrt.c
new file mode 100644
index 0000000..113e3d0
--- /dev/null
+++ b/text-utils/colcrt.c
@@ -0,0 +1,296 @@
+/*
+ * Copyright (C) 2016 Sami Kerola <kerolasa@iki.fi>
+ * Copyright (C) 2016 Karel Zak <kzak@redhat.com>
+ *
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * 1999-02-22 Arkadiusz Miśkiewicz <misiek@pld.ORG.PL>
+ *	added Native Language Support
+ * 1999-09-19 Bruno Haible <haible@clisp.cons.org>
+ *	modified to work correctly in multi-byte locales
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+
+#include "nls.h"
+#include "c.h"
+#include "widechar.h"
+#include "closestream.h"
+
+/*
+ * colcrt - replaces col for crts with new nroff esp. when using tbl.
+ * Bill Joy UCB July 14, 1977
+ *
+ * This filter uses the up and down sequences generated by the new
+ * nroff when used with tbl and by \u \d and \r.
+ * General overstriking doesn't work correctly.
+ * Underlining is split onto multiple lines, etc.
+ *
+ * Option - suppresses all underlining.
+ * Option -2 forces printing of all half lines.
+ */
+
+enum { OUTPUT_COLS = 132 };
+
+struct colcrt_control {
+	FILE		*f;
+	wchar_t		line[OUTPUT_COLS + 1];
+	wchar_t		line_under[OUTPUT_COLS + 1];
+	unsigned int	print_nl:1,
+			need_line_under:1,
+			no_underlining:1,
+			half_lines:1;
+};
+
+static void __attribute__((__noreturn__)) usage(void)
+{
+	FILE *out = stdout;
+	fputs(USAGE_HEADER, out);
+	fprintf(out, _(" %s [options] [<file>...]\n"), program_invocation_short_name);
+
+	fputs(USAGE_SEPARATOR, out);
+	fputs(_("Filter nroff output for CRT previewing.\n"), out);
+
+	fputs(USAGE_OPTIONS, out);
+	fputs(_(" -,  --no-underlining    suppress all underlining\n"), out);
+	fputs(_(" -2, --half-lines        print all half-lines\n"), out);
+
+	fputs(USAGE_SEPARATOR, out);
+	printf(USAGE_HELP_OPTIONS(25));
+
+	printf(USAGE_MAN_TAIL("colcrt(1)"));
+
+	exit(EXIT_SUCCESS);
+}
+
+static void trim_trailing_spaces(wchar_t *s)
+{
+	size_t size;
+	wchar_t *end;
+
+	size = wcslen(s);
+	if (!size)
+		return;
+	end = s + size - 1;
+	while (s <= end && iswspace(*end))
+		end--;
+	*(end + 1) = L'\0';
+}
+
+
+static void output_lines(struct colcrt_control *ctl, int col)
+{
+	/* first line */
+	trim_trailing_spaces(ctl->line);
+	fputws(ctl->line, stdout);
+
+	if (ctl->print_nl)
+		fputwc(L'\n', stdout);
+	if (!ctl->half_lines && !ctl->no_underlining)
+		ctl->print_nl = 0;
+
+	wmemset(ctl->line, L'\0', OUTPUT_COLS);
+
+	/* second line */
+	if (ctl->need_line_under) {
+		ctl->need_line_under = 0;
+		ctl->line_under[col] = L'\0';
+		trim_trailing_spaces(ctl->line_under);
+		fputws(ctl->line_under, stdout);
+		fputwc(L'\n', stdout);
+		wmemset(ctl->line_under, L' ', OUTPUT_COLS);
+
+	} else if (ctl->half_lines && 0 < col)
+		fputwc(L'\n', stdout);
+}
+
+static int rubchars(struct colcrt_control *ctl, int col, int n)
+{
+	while (0 < n && 0 < col) {
+		ctl->line[col] = L'\0';
+		ctl->line_under[col] = L' ';
+		n--;
+		col--;
+	}
+	return col;
+}
+
+static void colcrt(struct colcrt_control *ctl)
+{
+	int col;
+	wint_t c = 0;
+	long old_pos;
+
+	ctl->print_nl = 1;
+	if (ctl->half_lines)
+		fputwc(L'\n', stdout);
+
+	for (col = 0; /* nothing */; col++) {
+		if (OUTPUT_COLS - 1 < col) {
+			output_lines(ctl, col);
+			errno = 0;
+			old_pos = ftell(ctl->f);
+
+			while (getwc(ctl->f) != L'\n') {
+				long new_pos;
+
+				if (ferror(ctl->f) || feof(ctl->f))
+					return;
+				new_pos = ftell(ctl->f);
+				if (old_pos == new_pos) {
+					if (fseek(ctl->f, 1, SEEK_CUR) < 1)
+						return;
+				} else
+					old_pos = new_pos;
+			}
+			col = -1;
+			continue;
+		}
+		c = getwc(ctl->f);
+		switch (c) {
+		case 033:	/* ESC */
+			c = getwc(ctl->f);
+			if (c == L'8') {
+				col = rubchars(ctl, col, 1);
+				continue;
+			}
+			if (c == L'7') {
+				col = rubchars(ctl, col, 2);
+				continue;
+			}
+			continue;
+		case WEOF:
+			ctl->print_nl = 0;
+			output_lines(ctl, col);
+			return;
+		case L'\n':
+			output_lines(ctl, col);
+			col = -1;
+			continue;
+		case L'\t':
+			for (/* nothing */; col % 8 && col < OUTPUT_COLS; col++) {
+				ctl->line[col] = L' ';
+			}
+			col--;
+			continue;
+		case L'_':
+			ctl->line[col] = L' ';
+			if (!ctl->no_underlining) {
+				ctl->need_line_under = 1;
+				ctl->line_under[col] = L'-';
+			}
+			continue;
+		default:
+			if (!iswprint(c)) {
+				col--;
+				continue;
+			}
+			ctl->print_nl = 1;
+			ctl->line[col] = c;
+		}
+	}
+}
+
+int main(int argc, char **argv)
+{
+	struct colcrt_control ctl = { NULL };
+	int opt;
+	enum { NO_UL_OPTION = CHAR_MAX + 1 };
+
+	static const struct option longopts[] = {
+		{"no-underlining", no_argument, NULL, NO_UL_OPTION},
+		{"half-lines", no_argument, NULL, '2'},
+		{"version", no_argument, NULL, 'V'},
+		{"help", no_argument, NULL, 'h'},
+		{NULL, 0, NULL, 0}
+	};
+
+	setlocale(LC_ALL, "");
+	bindtextdomain(PACKAGE, LOCALEDIR);
+	textdomain(PACKAGE);
+	close_stdout_atexit();
+
+	/* Take care of lonely hyphen option. */
+	for (opt = 0; opt < argc; opt++) {
+		if (argv[opt][0] == '-' && argv[opt][1] == '\0') {
+			ctl.no_underlining = 1;
+			argc--;
+			memmove(argv + opt, argv + opt + 1,
+				sizeof(char *) * (argc - opt));
+			opt--;
+		}
+	}
+
+	while ((opt = getopt_long(argc, argv, "2Vh", longopts, NULL)) != -1) {
+		switch (opt) {
+		case NO_UL_OPTION:
+			ctl.no_underlining = 1;
+			break;
+		case '2':
+			ctl.half_lines = 1;
+			break;
+
+		case 'V':
+			print_version(EXIT_SUCCESS);
+		case 'h':
+			usage();
+		default:
+			errtryhelp(EXIT_FAILURE);
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+
+	do {
+		wmemset(ctl.line, L'\0', OUTPUT_COLS);
+		wmemset(ctl.line_under, L' ', OUTPUT_COLS);
+
+		if (argc > 0) {
+			if (!(ctl.f = fopen(*argv, "r")))
+				err(EXIT_FAILURE, _("cannot open %s"), *argv);
+			argc--;
+			argv++;
+		} else
+			ctl.f = stdin;
+
+		colcrt(&ctl);
+		if (ctl.f != stdin)
+			fclose(ctl.f);
+	} while (argc > 0);
+
+	return EXIT_SUCCESS;
+}