zsh: Convert all oneline functions into aliases

Convert all functions that are pretty much oneliners and do not contain
any real logic into aliases by using anonymous functions.
I am not too sure if I will keep it this way.

.config/zsh/plugins/alias.zsh

@@ -43,6 +43,7 @@
 	alias l="${aliases[ls]:-ls} -lh --time-style=long-iso"
 	alias ll="${aliases[l]} -A"
 	alias cd..='cd ..'
+	alias cl='() { cd "$@" && ${aliases[ls]:-[ls]}'
 	alias getclip="xclip -selection c -o"
 	alias setclip="perl -pe 'chomp if eof' | xclip -selection c"
 	alias pdf='launch evince'
@@ -84,6 +85,22 @@
 	# List options and their value (on|off) line by line. This makes it a lot
 	# easier to grep for activated options than using `setopt` and `unsetopt`.
 	alias listopts='printf "%s %s\n" "${(kv)options[@]}"'
+	# Launch program independent and detached from shell.
+	alias launch='() { ${aliases[$1]:-$1} "${@[2,-1]}" &>/dev/null &| }'
+	# Create copy with .bkp extension
+	alias bkp='() { for f; do command cp -i "$f"{,.bkp}; done }'
+	# Reverse bkp()
+	alias unbkp='() { for f; do command cp -i "$f" "${f%.bkp}; done }'
+	# Grep in history file
+	alias histgrep='() { grep "$@" "${HISTFILE:-$HOME/.zsh_history}" }'
+	# URL-encode
+	alias urlenc='() {
+		python3 -c "from urllib import parse; print(parse.quote('$@'), end='')
+	}'
+	# URL-decode
+	alias urldec='() {
+		python3 -c "from urllib import parse; print(parse.unquote('$@'), end='')
+	}'
 
 # Named directories
 	hash -d docs="$HOME"/Documents/

.config/zsh/plugins/functions.zsh

@@ -1,32 +1,6 @@
 ## Author:  druckdev
 ## Created: 2019-08-28
 
-## change into dir and print accordingly
-function cl() {
-	cd "$@" && ls
-}
-
-## Copy file and append .bkp extension
-function bkp() {
-	for file in "$@"; do
-		command cp -i "$file" "$file.bkp"
-	done
-}
-
-unbkp() {
-	for file in "$@"; do
-		command cp -i "$file" "${file%.bkp}"
-	done
-}
-
-## Launches program and detaches it from the shell
-function launch() {
-	# eval "$@" ## does not work with special characters?
-	launch_command="$1"
-	shift
-	$launch_command "$@" &>/dev/null &|
-}
-
 ## Compares two pdfs based on the result of pdftotext
 function pdfdiff() {
 	if [[ $# -eq 2 && -r "$1" && -r "$2" ]]; then
@@ -304,19 +278,6 @@ function mangrep() {
 	man -P "less -p \"^ *${pattern}\"" "$@" "${file}"
 }
 
-## Grep in zsh history file
-function histgrep() {
-	grep "$@" "${HISTFILE:-$HOME/.zsh_history}"
-}
-
-function urlenc() {
-	python3 -c "from urllib import parse; print(parse.quote('$@'), end='')"
-}
-
-function urldec() {
-	python3 -c "from urllib import parse; print(parse.unquote('$@'), end='')"
-}
-
 safe-remove() {
 	[ $# -gt 0 ] || return 1
 	[ -e "$1" ] || return 1