#! zsh
# copied from https://github.com/sindresorhus/pure/blob/43aafe0b4dc05174c57ee623c03c64400e832ece/pure.zsh#L56
setopt localoptions noshwordsplit

# Emacs terminal does not support settings the title.
(( ${+EMACS} || ${+INSIDE_EMACS} )) && return

case $TTY in
	# Don't set title over serial console.
	/dev/ttyS[0-9]*) return;;
esac

# Show hostname if connected via SSH.
local hostname=
if [[ -n $prompt_pure_state[username] ]]; then
	# Expand in-place in case ignore-escape is used.
	hostname="${(%):-(%m) }"
fi

local -a opts
case $1 in
	expand-prompt) opts=(-P);;
	ignore-escape) opts=(-r);;
esac

# Set title atomically in one print statement so that it works when XTRACE is enabled.
print -n $opts $'\e]0;'${hostname}${2}$'\a'