Functions/Zle/insert-unicode-char


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# Make hex integers appear as 0x...
setopt localoptions cbases

if [[ $LASTWIDGET = insert-unicode-char ]]; then
  # Second call; we should have a usable prefix.
  # If we don't, give up.
  (( ${+NUMERIC} )) || return 1
  # Convert it back to hex, padded with zeroes to 8 digits plus the 0x...
  local -i 16 -Z 10 arg=$NUMERIC
  # ...and use print to turn this into a Unicode character.
  LBUFFER+="$(print -n "\U${arg##0x}")"
else
  # Set the base to 16...
  zle argument-base 16
  # ...wait for user to type hex keys then call this widget again.
  zle universal-argument
fi