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usr
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Prompts
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promptinit
## ## zsh prompt themes extension ## by Adam Spiers <adam@spiers.net> ## ## Load with `autoload -Uz promptinit; promptinit'. ## Type `prompt -h' for help. ## typeset -gaU prompt_themes typeset -ga prompt_theme typeset -g prompt_newline prompt_themes=() promptinit () { emulate -L zsh setopt extendedglob autoload -Uz add-zsh-hook add-zle-hook-widget local ppath='' name theme local -a match mbegin mend # Autoload all prompt_*_setup functions in fpath for theme in $^fpath/prompt_*_setup(N); do if [[ $theme == */prompt_(#b)(*)_setup ]]; then name="$match[1]" if [[ -r "$theme" ]]; then prompt_themes=($prompt_themes $name) autoload -Uz prompt_${name}_setup else print "Couldn't read file $theme containing theme $name." fi else print "Eh? Mismatch between glob patterns in promptinit." fi done # Variables common to all prompt styles prompt_newline=$'\n%{\r%}' } prompt_preview_safely() { emulate -L zsh print -P "%b%f%k" if [[ -z "$prompt_themes[(r)$1]" ]]; then print "Unknown theme: $1" return fi # Run this in a subshell, so we don't need to clean up afterwards. ( # Execute current theme's cleanup sequence, if any. zstyle -t :prompt-theme cleanup # If we can't find a _preview function, run the _setup function to see if # it will create one. typeset +f prompt_${1}_preview >&/dev/null || prompt_${1}_setup # ...then try again. if typeset +f prompt_${1}_preview >&/dev/null; then prompt_${1}_preview "$@[2,-1]" else prompt_preview_theme "$@" fi ) } set_prompt() { emulate -L zsh local opt preview theme usage old_theme usage='Usage: prompt <options> Options: -c Show currently selected theme and parameters -l List currently available prompt themes -p [<themes>] Preview given themes (defaults to all except current theme) -h [<theme>] Display help (for given theme) -s <theme> Set and save theme <theme> Switch to new theme immediately (changes not saved) Use prompt -h <theme> for help on specific themes.' getopts "chlps:" opt case "$opt" in c) if [[ -n $prompt_theme ]]; then print -n "Current prompt theme" (( $#prompt_theme > 1 )) && print -n " with parameters" print " is:\n $prompt_theme" else print "Current prompt is not a theme." fi return ;; h) if [[ -n "$2" && -n $prompt_themes[(r)$2] ]]; then # Run this in a subshell, so we don't need to clean up afterwards. ( # Execute current theme's cleanup sequence, if any. zstyle -t :prompt-theme cleanup # If we can't find a _help function, run the _setup function to see # if it will create one. typeset +f prompt_$2_help >/dev/null || prompt_$2_setup # ...then try again. if typeset +f prompt_$2_help >/dev/null; then print "Help for $2 theme:\n" prompt_$2_help else print "No help available for $2 theme." fi print "\nType \`prompt -p $2' to preview the theme, \`prompt $2'" print "to try it out, and \`prompt -s $2' to use it in future sessions." ) else print "$usage" fi ;; l) print Currently available prompt themes: print $prompt_themes return ;; p) preview=( ${prompt_themes:#$prompt_theme} ) (( $#* > 1 )) && preview=( "$@[2,-1]" ) for theme in $preview; do prompt_preview_safely "$=theme" done print -P "%b%f%k" ;; s) print "Set and save not yet implemented. Please ensure your ~/.zshrc" print "contains something similar to the following:\n" print " autoload -Uz promptinit" print " promptinit" print " prompt $*[2,-1]" shift ;& *) if [[ "$1" == 'random' ]]; then local random_themes if (( $#* == 1 )); then random_themes=( $prompt_themes ) else random_themes=( "$@[2,-1]" ) fi local i=$(( ( $RANDOM % $#random_themes ) + 1 )) argv=( "${=random_themes[$i]}" ) fi if [[ -z "$1" || -z $prompt_themes[(r)$1] ]]; then print "$usage" return fi # Reset some commonly altered bits to the default local hook for hook in chpwd precmd preexec periodic zshaddhistory zshexit \ zsh_directory_name; do add-zsh-hook -D "$hook" "prompt_*_$hook" done for hook in isearch-exit isearch-update line-pre-redraw line-init \ line-finish history-line-set keymap-select; do add-zle-hook-widget -D "$hook" "prompt_*_$hook" done typeset -ga zle_highlight=( ${zle_highlight:#default:*} ) (( ${#zle_highlight} )) || unset zle_highlight zstyle -t :prompt-theme cleanup prompt_$1_setup "$@[2,-1]" && prompt_theme=( "$@" ) ;; esac } prompt_cleanup () { local -a cleanup_hooks theme_active if ! zstyle -g cleanup_hooks :prompt-theme cleanup; then if ! zstyle -g theme_active :prompt-theme restore; then print -u2 "prompt_cleanup: no prompt theme active" return 1 fi # Set the cleanup sequence up. zstyle -e :prompt-theme cleanup \ 'zstyle -d :prompt-theme cleanup;' \ 'reply=(yes)' zstyle -g cleanup_hooks :prompt-theme cleanup fi cleanup_hooks+=(';' "$@") zstyle -e :prompt-theme cleanup "${cleanup_hooks[@]}" } prompt () { local -a prompt_opts theme_active zstyle -g theme_active :prompt-theme restore || { # This is done here rather than in set_prompt so that it # is safe and sane for set_prompt to setopt localoptions, # which will be cleared before we arrive back here again. # This is also why we pass around the prompt_opts array. [[ -o promptbang ]] && prompt_opts+=(bang) [[ -o promptcr ]] && prompt_opts+=(cr) [[ -o promptpercent ]] && prompt_opts+=(percent) [[ -o promptsp ]] && prompt_opts+=(sp) [[ -o promptsubst ]] && prompt_opts+=(subst) zstyle -e :prompt-theme restore " zstyle -d :prompt-theme restore prompt_default_setup ${PS1+PS1=${(q+)PS1}} ${PS2+PS2=${(q+)PS2}} ${PS3+PS3=${(q+)PS3}} ${PS4+PS4=${(q+)PS4}} ${RPS1+RPS1=${(q+)RPS1}} ${RPS2+RPS2=${(q+)RPS2}} ${RPROMPT+RPROMPT=${(q+)RPROMPT}} ${RPROMPT2+RPROMPT2=${(q+)RPROMPT2}} ${PSVAR+PSVAR=${(q+)PSVAR}} prompt_opts=( $prompt_opts[*] ) reply=( yes ) " } set_prompt "$@" (( ${#prompt_opts} )) && setopt noprompt{bang,cr,percent,sp,subst} "prompt${^prompt_opts[@]}" true } prompt_preview_theme () { emulate -L zsh # Minimal preview for prompts that don't supply one local -a prompt_opts print -n "$1 theme" (( $#* > 1 )) && print -n " with parameters \`$*[2,-1]'" print ":" zstyle -t :prompt-theme cleanup prompt_${1}_setup "$@[2,-1]" (( ${#prompt_opts} )) && setopt noprompt{bang,cr,percent,sp,subst} "prompt${^prompt_opts[@]}" [[ -n ${chpwd_functions[(r)prompt_${1}_chpwd]} ]] && prompt_${1}_chpwd [[ -n ${precmd_functions[(r)prompt_${1}_precmd]} ]] && prompt_${1}_precmd # We'd like to call zle-line-init/finish hooks, too, but that's not possible # while the ZLE is not active. [[ -o promptcr ]] && print -n $'\r' :; print -P -- "${PS1}command arg1 arg2 ... argn" [[ -n ${preexec_functions[(r)prompt_${1}_preexec]} ]] && prompt_${1}_preexec } [[ -o kshautoload ]] || promptinit "$@"
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