multiline bar prompt in zsh

072aar · 08-30-2021, 08:50 AM

hello. I am trying to construct a bar prompt in zsh; that is I want a left prompt right prompt a solid bar between them and a newline which will have the current directory. On the left prompt I will have user@hostname and on the right prompt will be date/time. When I run the code everything shows up correctly except the newline and the newline prompt. Here is what I have so far:

Code:

autoload -U promptinit
promptinit

autoload -Uz compinit
compinit
_comp_options+=(globdots)


setopt AUTO_PUSHD
setopt PUSHD_IGNORE_DUPS
setopt PUSHD_SILENT
setopt PROMPT_SUBST
setopt PROMPT_BANG
setopt PROMPT_PERCENT

pipe_color='%{%F{#ffffff}%}'
pipe_bg_color='%{%K{#414a4c}%}'
username_color='%{%F{#000000}%}'
username_bg_color='%{%K{#c0c5ce}%}'
at_color='%{%F{#ffffff}%}'
at_bg_color='%{%K{#414a4c}%}'
machine_color='%{%F{#ffffff}%}'
machine_bg_color='%{%K{#005b96}%}'
date_color='%{%F{#000000}%}'
date_bg_color='%{%K{#ffa700}%}'
time_color='%{%F{#ffa700}%}'
time_bg_color='%{%K{#000000}%}'
bar_color='%{%F{#00330b}%}'
bar_bg_color='%{%K{#00330b%}'
reset_color='%{%f%k%}'
USERNAME=$(id -un) 
UNLENGTH=${#USERNAME}
HOST=$(hostname)
HNLENGTH=${#HOST}
PIPES_AT_BRACKETS=16
DATE=$(date +"[%F]")
DTLENGTH=${#DATE}
TIME=$(date +"[%H:%M:%S]")
TMLENGTH=${#TIME}
COLS=$(tput cols)
TOTAL_COLUMNS=${COLS}
USED_COLUMNS=$((${UNLENGTH} + ${HNLENGTH} + ${PIPES_AT_BRACKETS} + ${DTLENGTH} + ${TMLENGTH}))
BAR_SPACES=$((${TOTAL_COLUMNS} - ${USED_COLUMNS}))
NEWLINE=$'\n'

function setPS1 {
function printBar {
print -v NEWLINE $'\U000A'
print -v PSNewline '%{#ffffff}%K{#000000}|%f%k%F{#ffffff}%K{#36802d}[%~]%f%k%F{#ffffff}%K{#000000}|%f%k'
print -v BAR "seq -s ' ' 0 ${BAR_SPACES} | tr -d '[:digit:]'"
}
}

function precmd {
setPS1
}

# shopt -s checkwinsize; (:;:)
COLUMNS=
resize &>/dev/null

print -v PROMPT '${pipe_color}${pipe_bg_color}|${reset_color}${username_color}${username_bg_color}[%n]${reset_color}${pipe_color}${pipe_bg_color}|${reset_color}${at_color}${at_bg_color}@${reset_color}${pipe_color}${pipe_bg_color}|${reset_color}${machine_color}${machine_bg_color}[%M]${reset_color}${pipe_color}${pipe_bg_color}|${reset_color}${bar_color}${bar_bg_color}${BAR}${PSNewline}'

print -v RPROMPT '${pipe_color}${pipe_bg_color}|${reset_color}${date_color}${date_bg_color}${DATE}${reset_color}${pipe_color}${pipe_bg_color}|${reset_color}${time_color}${time_bg_color}${TIME}${reset_color}${pipe_color}${pipe_bg_color}|'

I've tried placing the "\n" for the newline prompt everywhere I could think of but it never displays right.

appreciate your input.

072aar · 09-04-2021, 11:02 AM

Hi I was wondering what this string does--I found it while trying to learn about building a zsh prompt. The FULL line of code is like so:

Code:

PS1='%K{green}$left${(l,COLUMNS-${#${(%)left}},)${${:-$branch | $mode}//[%]/%%}}%k$ '

I understand PS1 and the %K and $left but the part I'm needing help with is:

Code:

${(l,COLUMNS-${#${(%)left}},)${${:-$branch | $mode}//[%]/%%}}%k$ '

Or, what do I need to read in the zsh manual to understand this line of code. I'm trying to build a prompt like this--I don't need the 'insert' mode; I want user@host for leftprompt, date/time as right prompt and the pwd on a newline. I need a solid bar between left and right prompt:

Click image for larger version

Name: barprompt0.png
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ID: 37126

Any input greatly appreciated for this noob.

astrogeek · 09-05-2021, 01:13 AM

Please post your thread in only one forum. Posting a single thread in the most relevant forum will make it easier for members to help you and will keep the discussion in one place. This thread is being merged with your previous thread on this topic.