Addresses issue #61

awk counts bytes not characters. Use gawk if available to fix multibyte
issues.

Signed-off-by: Chad Metcalf <[email protected]>

Author: metcalfc

CHANGELOG.md

@@ -1,6 +1,7 @@
 # Changelog
 
 ### master
+- if installed use `gawk` instead of `awk` (@metcalfc)
 
 ### v2.1.0, Jan 01, 2015
 - combine send-keys calls to reduce flickering (@toupeira)

scripts/copycat_jump.sh

@@ -15,7 +15,7 @@ TMUX_COPY_MODE="$(tmux_copy_mode)"
 
 _file_number_of_lines() {
 	local file="$1"
-	echo "$(wc -l $file | awk '{print $1}')"
+	echo "$(wc -l $file | $AWK_CMD '{print $1}')"
 }
 
 _get_result_line() {
@@ -91,7 +91,7 @@ _get_match_line_position() {
 	result_line="$(_escape_backslash "$result_line")"
 	match="$(_escape_backslash "$match")"
 
-	local index=$(awk -v a="$result_line" -v b="$match" 'BEGIN{print index(a,b)}')
+	local index=$($AWK_CMD -v a="$result_line" -v b="$match" 'BEGIN{print index(a,b)}')
 	local zero_index=$((index - 1))
 	echo "$zero_index"
 }
@@ -272,7 +272,7 @@ get_new_position_number() {
 
 	# doing a forward/up jump
 	if [ "$NEXT_PREV" == "next" ]; then
-		local number_of_results=$(wc -l "$copycat_file" | awk '{ print $1 }')
+		local number_of_results=$(wc -l "$copycat_file" | $AWK_CMD '{ print $1 }')
 		if [ "$current_position" -eq "$number_of_results" ]; then
 			# position can't go beyond the last result
 			new_position="$current_position"

scripts/helpers.sh

@@ -9,6 +9,15 @@ tmux_option_prev="@copycat_prev"
 # keeps track of number of panes in copycat mode
 tmux_option_counter="@copycat_counter"
 
+# === awk vs gawk ===
+command_exists() {
+	command -v "$@" > /dev/null 2>&1
+}
+AWK_CMD='awk'
+if command_exists gawk; then
+	AWK_CMD='gawk'
+fi
+
 # === general helpers ===
 
 get_tmux_option() {
@@ -145,7 +154,7 @@ copycat_quit_copy_mode_keys() {
 	local copy_mode="$(tmux_copy_mode)-copy"
 	tmux list-keys -t "$copy_mode" |
 		\grep "$commands_that_quit_copy_mode" |
-		awk '{ print $4}' |
+		$AWK_CMD '{ print $4}' |
 		sort -u |
 		xargs echo
 }