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Unposted: update the "bart" prompt theme.

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This commit is contained in:
Bart Schaefer 2005-03-13 23:27:23 +00:00
parent 87dceeae1c
commit 538fa548c3
2 changed files with 42 additions and 17 deletions
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54
Functions/Prompts/prompt_bart_setup
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@ -2,8 +2,8 @@ zmodload -i zsh/parameter || return 1
prompt_bart_help () {
setopt localoptions nocshnullcmd noshnullcmd
[[ $ZSH_VERSION < 3.1.6-dev-20 ]] &&
print 'Requires 3.1.6-dev-19 plus zsh-workers/10168.'$'\n'
[[ $ZSH_VERSION < 4.2.2 ]] &&
print 'Requires ZSH_VERSION 4.2.2'$'\n'
<<-\EOF
This prompt gives the effect of left and right prompts on the upper
line of a two-line prompt. It also illustrates including history
@ -17,8 +17,10 @@ prompt_bart_help () {
given. The defaults look best on a light background.
The "off" token temporarily disables the theme; "on" restores it.
No background colors or hardwired cursor motion escapes are used,
and it is not necessary to setopt promptsubst.
EOF
[[ $(read -Ek 1 "?${(%):-%S[press return]%s}") == [Qq] ]] &&
[[ $(read -sek 1 "?${(%):-%S[press return]%s}") == [Qq] ]] &&
print -nP '\r%E' && return
<<-\EOF
@ -39,7 +41,7 @@ prompt_bart_help () {
the upper left prompt grows too wide. The clock is not live; it
changes only after each command, as does the rest of the prompt.
EOF
[[ $(read -Ek 1 "?${(%):-%S[press return]%s}") == [Qq] ]] &&
[[ $(read -sek 1 "?${(%):-%S[press return]%s}") == [Qq] ]] &&
print -nP '\r%E' && return
<<-\EOF
@ -51,27 +53,43 @@ prompt_bart_help () {
This prompt hijacks psvar[7] through [9] to avoid having to reset
the entire PS1 string on every command. It uses TRAPWINCH to set
the position of the upper right prompt on a window resize, so the
prompt may not match the window width until the next command. No
background colors or hardwired cursor motion escapes are used, and
it is not necessary to setopt promptsubst.
prompt may not match the window width until the next command.
When setopt nopromptcr is in effect, an ANSI terminal protocol
exchange is attempted in order to determine the current cursor
column, and the width of the upper prompt is adjusted accordingly.
If your terminal is not ANSI compliant, this may cause unexpected
behavior, and in any case it may consume typeahead. (Recommended
workaround is to setopt promptcr.)
EOF
[[ $(read -sek 1 "?${(%):-%S[done]%s}") == $'\n' ]] ||
print -nP '\n%E'
}
integer PSCOL=1
prompt_bart_precmd () {
setopt localoptions noxtrace noksharrays unset
local zero='%([BSUbsu]|{*%})'
local zero='%([BSUbsu]|{*%})' escape colno lineno
# Using psvar here protects against unwanted promptsubst expansions.
psvar[7]="$history[$[${(%):-%h}-1]]" # Use history text, not just number
psvar[8]='' # No padding until we compute it
psvar[7]="$history[$[HISTCMD-1]]" # Use history text, not just number
psvar[8]='' # No padding until we compute it
psvar[9]=()
# Reset the truncation widths for upcoming computations
((PSCOL == 1)) || { PSCOL=1 ; prompt_bart_ps1 }
[[ -o promptcr ]] || IFS='[;' read -s -d R escape\?$'\e[6n' lineno PSCOL
((PSCOL == 1)) || prompt_bart_ps1
((colno = COLUMNS-PSCOL))
# Compute the size of the upper left prompt and set psvar[9] if needed.
psvar[9]=()
((${#${(f)${(%%)${(S)PS1//$~zero/}}}[1]} > COLUMNS-1)) && psvar[9]=''
((${#${(f)${(%%)${(S)PS1//$~zero/}}}[1]} > colno)) && psvar[9]=''
# Compute and set the padding between upper left and right prompts.
psvar[8]=${(l:COLUMNS-${#${(f)${(%%)${(S)PS1//$~zero/}}}[1]}-1:: :)}
(((colno -= ${#${(f)${(%%)${(S)PS1//$~zero/}}}[1]}) > 0)) &&
psvar[8]=${(l:colno:: :)}
}
prompt_bart_ps1 () {
@ -96,17 +114,19 @@ prompt_bart_ps1 () {
# Assemble the new prompt
ps1=( ${(f)PS1} ) # Split the existing prompt at newlines
ps1=( "%$[COLUMNS-1]>..>" # Begin truncation (upper left prompt)
ps1=(
"%$[COLUMNS-PSCOL]>..>" # Begin truncation (upper left prompt)
"$host"
"$hist1" # Empty when too wide for one line
"$dir"
"%<<" # End truncation (end upper left prompt)
"$space" # Pad line to upper right position
"%$[COLUMNS-16](l. . $date)"
"%$[COLUMNS-8](l.. $time)"
"%$[COLUMNS-PSCOL-15](l. . $date)"
"%$[COLUMNS-PSCOL-7](l.. $time)"
"$hist2" # Empty when $hist1 is not empty
$'\n'
$ps1[-1] ) # Keep last line of the existing prompt
$ps1[-1] # Keep last line of the existing prompt
)
PS1="${(j::)ps1}"
}