From f446f62eb968ba9479abcd1d2b00794340e78153 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@lukeshu.com>
Date: Mon, 25 Sep 2017 15:09:31 -0400
Subject: chardiff: Better help text

---
 chardiff.sh | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/chardiff.sh b/chardiff.sh
index 6d629d2..4256d0c 100644
--- a/chardiff.sh
+++ b/chardiff.sh
@@ -32,6 +32,8 @@ wdiff_getopt() {
 	eval set -- "$args"
 	while true; do
 		case "$1" in
+			-C|--copyright|-h|--help|-v|--version)
+				printf -- '%s' "$1"; return;;
 			--) shift; break;;
 			*) shift;;
 		esac
@@ -51,9 +53,31 @@ wdiff_getopt() {
 main() {
 	# Normalize the arguments
 	declare flags
-	flags="$(wdiff_getopt "$@")" || { wdiff --help >&2; return 1; }
+	if ! flags="$(wdiff_getopt "$@")"; then
+		printf "$(gettext 'Try `%s'\'' for my information.\n')" "${0##*/} --help" >&2
+		return 2
+	fi
 	eval set -- "$flags"
 
+	case "$1" in
+		-C|--copyright)
+			wdiff --copyright
+			return
+			;;
+		-h|--help)
+			printf "$(gettext 'chardiff - Compares characters in two files and report differences.\n')"
+			wdiff --help | sed -e 1d -e '/\s-d\b/d' -e /diff-input/d -e '/@gnu\.org/d' -e "s/wdiff/${0##*/}/g"
+			printf "$(gettext 'Report bugs to <lukeshu@lukeshu.com>.\n')"
+			return 0
+			;;
+		-v|--version)
+			printf "$(gettext 'chardiff (thingutils chardiff) %s\n')" 0
+			printf "$(gettext 'Using:\n')"
+			wdiff --version
+			return 0
+			;;
+	esac
+
 	# Run wdiff with our filters
 	declare -a args=("$@")
 	declare file2=${args[-1]}; unset args[-1]
-- 
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