tmux:textobjs: Reduce calls to tmux

Put multiple commands together in one tmux call instead of calling it
every time.

.config/tmux/textobjs.sh

@@ -10,6 +10,23 @@ command_prompt() {
 	tmux command-prompt -k -I "$2" -p "$1" 'display-message -p "%%"'
 }
 
+copy_exec() {
+	num_cmds=$#
+
+	# since POSIX shell does not include arrays I use `set` here. This keeps
+	# the initial arguments though (for now), since I cannot copy $@ (as an
+	# array) to a different variable to have a clean $@ in the first
+	# iteration.
+	for arg in "$@"; do
+		set -- "$@" \; send -X "$arg"
+	done
+
+	# get rid of initial arguments + first semicolon
+	shift $((num_cmds + 1))
+
+	tmux "$@"
+}
+
 mode="$(get_var pane_mode)"
 if [ "$mode" != copy-mode ]; then
 	>&2 printf "%s: Not in copy mode\n" "$0"
@@ -19,7 +36,7 @@ fi
 # cancel copy-mode when not in 'visual' mode (i.e. selection is present)
 selection_present="$(get_var selection_present)"
 if [ "$selection_present" -eq 0 ]; then
-	tmux send -X cancel
+	copy_exec cancel
 	exit 0
 fi
 
@@ -45,13 +62,12 @@ case "$motion" in
 		if [ "${copy_line_post#"$copy_word"}" = "$copy_line_post" ];
 		then
 			# not on beginning of word
-			tmux send -X previous-word
-			tmux send -X other-end
+			copy_exec previous-word other-end
 		fi
 		if [ "${copy_line_pre%"$copy_word"}" = "$copy_line_pre" ];
 		then
 			# not on end of word
-			tmux send -X next-word-end
+			copy_exec next-word-end
 		fi
 		;;
 	W)
@@ -73,18 +89,17 @@ case "$motion" in
 		# send "BoE"
 		if [ "$char_pre" != " " ]; then
 			# not on beginning of WORD
-			tmux send -X previous-space
-			tmux send -X other-end
+			copy_exec previous-space other-end
 		fi
 		if [ "$char_post" != " " ]; then
 			# not on end of WORD
-			tmux send -X next-space-end
+			copy_exec next-space-end
 		fi
 		;;
 	p)
 		# send "{j0o}k$"
 
-		tmux send -X previous-paragraph
+		copy_exec previous-paragraph
 
 		scroll_pos="$(get_var scroll_position)"
 		hist_size="$(get_var history_size)"
@@ -92,12 +107,10 @@ case "$motion" in
 		# don't move down if we're at the very first paragraph
 		if [ "$scroll_pos" -lt "$hist_size" ] || [ "$cursor_y" -gt 0 ]
 		then
-			tmux send -X cursor-down
+			copy_exec cursor-down
 		fi
 
-		tmux send -X start-of-line
-		tmux send -X other-end
-		tmux send -X next-paragraph
+		copy_exec start-of-line other-end next-paragraph
 
 		scroll_pos="$(get_var scroll_position)"
 		cursor_y="$(get_var copy_cursor_y)"
@@ -106,46 +119,46 @@ case "$motion" in
 		# don't move up if we're at the very last paragraph
 		if [ "$scroll_pos" -gt 0 ] || [ "$cursor_y" -lt "$pane_height" ]
 		then
-			tmux send -X cursor-up
+			copy_exec cursor-up
 		fi
 
-		tmux send -X end-of-line
+		copy_exec end-of-line
 		;;
 	# TODO: All following break when the cursor sits on the start or end
 	\")
-		tmux send -X jump-to-backward '"'
-		tmux send -X other-end
-		tmux send -X jump-to-forward '"'
+		copy_exec jump-to-backward '"'
+		copy_exec other-end
+		copy_exec jump-to-forward '"'
 		;;
 	\')
-		tmux send -X jump-to-backward "'"
-		tmux send -X other-end
-		tmux send -X jump-to-forward "'"
+		copy_exec jump-to-backward "'"
+		copy_exec other-end
+		copy_exec jump-to-forward "'"
 		;;
 	\`)
-		tmux send -X jump-to-backward '`'
-		tmux send -X other-end
-		tmux send -X jump-to-forward '`'
+		copy_exec jump-to-backward '`'
+		copy_exec other-end
+		copy_exec jump-to-forward '`'
 		;;
 	'[|]')
-		tmux send -X jump-to-backward '['
-		tmux send -X other-end
-		tmux send -X jump-to-forward ']'
+		copy_exec jump-to-backward '['
+		copy_exec other-end
+		copy_exec jump-to-forward ']'
 		;;
 	'b|(|)')
-		tmux send -X jump-to-backward '('
-		tmux send -X other-end
-		tmux send -X jump-to-forward ')'
+		copy_exec jump-to-backward '('
+		copy_exec other-end
+		copy_exec jump-to-forward ')'
 		;;
 	'<|>')
-		tmux send -X jump-to-backward '<'
-		tmux send -X other-end
-		tmux send -X jump-to-forward '>'
+		copy_exec jump-to-backward '<'
+		copy_exec other-end
+		copy_exec jump-to-forward '>'
 		;;
 	'B|{|}')
 		# TODO: make this work over multiple lines
-		tmux send -X jump-to-backward '{'
-		tmux send -X other-end
-		tmux send -X jump-to-forward '}'
+		copy_exec jump-to-backward '{'
+		copy_exec other-end
+		copy_exec jump-to-forward '}'
 		;;
 esac