en

@@ -12,13 +12,13 @@ exec >&2 </dev/tty
 
 if test -z "$1"; then
 	printf "Usage: %s file...\n" "$argv0" 1>&2
-	exit 64 # sysexits.h(3) EX_USAGE
+	exit 1
 fi
 
 if ! command -v mktemp >/dev/null 2>&1
 then
 	printf "%s: mktemp(1): Missing dependency." "$argv0"
-	exit 69 # sysexits.h(3) EX_UNAVAILABLE
+	exit 1
 fi
 
 help="$(printf "Commands:\n\
@@ -39,13 +39,13 @@ en(1) Copyright (c) 2023 Emma Tebibyte\n")"
 while test -n "$1"; do
 	content="$(cat "$1")"
 	file="$(printf "%s\n" "$1" | tr -d '/')"
-	temp_highlight="$(mktemp -t "XXXXX$file")"
 
 	# use bat for syntax highlighting if it’s available, but remove the frills
 	if command -v bat >/dev/null
 	then
 		# there has to be a temp file for writing the highlighted text to
 		syntax_h() {
+			temp_highlight="$(mktemp -t "XXXXX$file")"
 			printf "%s\n" "$1" >"$temp_highlight"
 			bat -pp --color always "$temp_highlight"
 		}
@@ -66,7 +66,7 @@ while test -n "$1"; do
 				;;
 			"a")
 				read -r append
-				content="$content$append"
+				content="$(printf "%s\n%s" "$content" "$append")"
 				;;
 			"c")
 				clear
@@ -77,10 +77,8 @@ while test -n "$1"; do
 				else
 					for line in $(printf "%s\n" "$args" | sed 's/,/\n/g')
 					do
-						content="$(printf "%s\n" "$content" |\
-							awk -v l="$line" 'NR == l {next} {print}')"
-						#del="$(printf "%s\n" "$content" | head -n "$line" | tail -n 1)"
-						#content="$(printf "%s\n" "$content" | sed -n "/$del/!p")"
+						del="$(printf "%s\n" "$content" | head -n "$line" | tail -n 1)"
+						content="$(printf "%s\n" "$content" | sed -n "/$del/!p")"
 					done
 				fi
 				;;

xx01

@@ -0,0 +1,18 @@
+1
+2
+3
+4
+5
+6
+7
+8
+
+this is a test file.
+
+it is very useful for testing things.
+
+meow
+meow
+meow meow
+woof
+test