tldr.plugin.zsh

 1tldr-command-line() {
 2    # if there is no command typed, use the last command
 3    [[ -z "$BUFFER" ]] && zle up-history
 4
 5    # if typed command begins with tldr, do nothing
 6    [[ "$BUFFER" = tldr\ * ]] && return
 7
 8    # get command and possible subcommand
 9    # http://zsh.sourceforge.net/Doc/Release/Expansion.html#Parameter-Expansion-Flags
10    local -a args
11    args=(${${(Az)BUFFER}[1]} ${${(Az)BUFFER}[2]})
12
13    BUFFER="tldr ${args[1]}"
14}
15
16zle -N tldr-command-line
17# Defined shortcut keys: [Esc]tldr
18bindkey "\e"tldr tldr-command-line
19