diff options
Diffstat (limited to 'Functions/Prompts/prompt_bart_setup')
| -rw-r--r-- | Functions/Prompts/prompt_bart_setup | 54 |
1 files changed, 37 insertions, 17 deletions
diff --git a/Functions/Prompts/prompt_bart_setup b/Functions/Prompts/prompt_bart_setup index a52e072ab..36ec6f7ac 100644 --- a/Functions/Prompts/prompt_bart_setup +++ b/Functions/Prompts/prompt_bart_setup @@ -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}" } |