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bash shell integration: Handle both literal and escaped newlines in PS1

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Kovid Goyal
2022-02-22 18:30:20 +05:30
parent b59212696a
commit dac9b07f16
2 changed files with 25 additions and 2 deletions
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7
shell-integration/bash/kitty.bash
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@@ -58,14 +58,17 @@ _ksi_main() {
PS1=${PS1//\\\[\\e\]133;k;start_suffix_kitty\\a\\\]*end_suffix_kitty\\a\\\]}
fi
if [[ -n "${_ksi_prompt[ps1]}" ]]; then
if [[ "${_ksi_prompt[mark]}" == "y" && "${PS1}" == *"\n"* ]]; then
if [[ "${_ksi_prompt[mark]}" == "y" && ( "${PS1}" == *"\n"* || "${PS1}" == *$'\n'* ) ]]; then
local oldval=$(builtin shopt -p extglob)
builtin shopt -s extglob
# bash does not redraw the leading lines in a multiline prompt so
# mark the last line as a secondary prompt. Otherwise on resize the
# lines before the last line will be erased by kitty.
# the first part removes everything from the last \n onwards
# the second part appends a newline with the secondary marking
# the third part appends everything after the last newline
PS1=${PS1%'\n'*}${_ksi_prompt[secondary_prompt]}${PS1##*'\n'}
PS1=${PS1%@('\n'|$'\n')*}${_ksi_prompt[secondary_prompt]}${PS1##*@('\n'|$'\n')};
eval "$oldval"
fi
PS1="${_ksi_prompt[ps1]}$PS1"
fi