diff options
Diffstat (limited to 'Functions/Prompts')
| -rw-r--r-- | Functions/Prompts/promptinit | 154 |
1 files changed, 119 insertions, 35 deletions
diff --git a/Functions/Prompts/promptinit b/Functions/Prompts/promptinit index 2cf2a4674..a07650500 100644 --- a/Functions/Prompts/promptinit +++ b/Functions/Prompts/promptinit @@ -1,27 +1,32 @@ -# zsh prompt themes extension -# -# Load with `autoload -U promptinit; promptinit'. +## +## zsh prompt themes extension +## by Adam Spiers <adam@spiers.net> +## +## Load with `autoload -U promptinit; promptinit'. +## Type `prompt -h' for help. +## prompt_themes=() typeset -gU prompt_themes -typeset -g prompt_theme +typeset -g prompt_theme >/dev/null promptinit () { emulate -L zsh - local ppath='' name + setopt extendedglob + local ppath='' name theme # Autoload all prompt_*_setup functions in fpath - for theme in $fpath/prompt_*_setup(N); do + for theme in $^fpath/prompt_*_setup(N); do if [[ $theme == */prompt_(#b)(*)_setup ]]; then name="$match[1]" if [[ -r "$theme" ]]; then - prompt_themes=($name $prompt_themes) + prompt_themes=($prompt_themes $name) autoload -U prompt_${name}_setup else - print "Couldn't find theme $theme" + print "Couldn't read file $theme containing theme $name." fi else - print "eh?" + print "Eh? Mismatch between glob patterns in promptinit." fi done @@ -30,29 +35,86 @@ promptinit () { colors # Variables common to all prompt styles - prompt_newline=$(echo -ne "\n%{\r%}") + prompt_newline=$'\n%{\r%}' } -prompt () { +prompt_preview_safely() { + print $reset_color + if [[ -z "$prompt_themes[(r)$1]" ]]; then + print "Unknown theme: $1" + return + fi + + local -a psv; psv=($psvar); local -a +h psvar; psvar=($psv) # Ick + local +h PS1=$PS1 PS2=$PS2 PS3=$PS3 PS4=$PS4 RPS1=$RPS1 + trap "${$(functions precmd):-:} ; ${$(functions preexec):-:}" 0 + + # The next line is a bit ugly. It (perhaps unnecessarily) + # runs the prompt theme setup function to ensure that if + # the theme has a _preview function that it's been autoloaded. + prompt_${1}_setup + + if typeset +f prompt_${1}_preview >&/dev/null; then + prompt_${1}_preview "$@[2,-1]" + else + prompt_preview_theme "$@" + fi +} + +set_prompt() { + emulate -L zsh local opt preview theme usage old_theme usage='Usage: prompt <options> Options: + -c Show currently selected theme and parameters -l List currently available prompt themes -p [<themes>] Preview given themes (defaults to all) -h [<theme>] Display help (for given theme) -s <theme> Set and save theme - <theme> Switch to new theme immediately (changes not saved)' + <theme> Switch to new theme immediately (changes not saved) - getopts "hlps" opt +Use prompt -h <theme> for help on specific themes.' + + getopts "chlps" opt + case "$opt" in + (h|p) + setopt localtraps + if [[ -z "$prompt_theme[1]" ]]; then + # Not using a prompt theme; save settings + local -a psv; psv=($psvar); local -a +h psvar; psvar=($psv) # Ick + local +h PS1=$PS1 PS2=$PS2 PS3=$PS3 PS4=$PS4 RPS1=$RPS1 + trap "${$(functions precmd):-:} ; ${$(functions preexec):-:}" 0 + else + trap 'prompt_${prompt_theme[1]}_setup "${(@)prompt_theme[2,-1]}"' 0 + fi + ;; + esac case "$opt" in + c) if (( $+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 + if functions prompt_$2_setup >/dev/null; then + # The next line is a bit ugly. It (perhaps unnecessarily) + # runs the prompt theme setup function to ensure that if + # the theme has a _help function that it's been autoloaded. + prompt_$2_setup + fi if functions prompt_$2_help >/dev/null; then - print "Help for $2 theme:\n" + print "Help for $2 theme:\n" prompt_$2_help else - print "No help available for $2 theme" + 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 @@ -61,24 +123,13 @@ Options: print $prompt_themes return ;; - p) if (( ! $+prompt_theme )); then - print "Cannot preview; current prompt is non-themeable and would" - print "be destroyed." - return - fi - preview=( $prompt_themes ) - [[ -n "$2" && -n $prompt_themes[(r)$2] ]] && preview=( $*[2,-1] ) + p) preview=( $prompt_themes ) + (( $#* > 1 )) && preview=( "$@[2,-1]" ) for theme in $preview; do - [[ $theme == $prompt_theme[1] ]] && continue - print "\nTheme: $theme" - prompt_${theme}_setup - precmd - print -n -P "${PS1}" - preexec - print "command arg1 arg2 ... argn" + [[ "$theme" == "$prompt_theme[*]" ]] && continue + prompt_preview_safely "$=theme" done - print - prompt_${prompt_theme}_setup + print $reset_color ;; s) print "Set and save not yet implemented. Please ensure your ~/.zshrc" print "contains something similar to the following:\n" @@ -86,12 +137,21 @@ Options: print " promptinit" print " prompt $*[2,-1]" ;; - *) if [[ -z "$1" || -z $prompt_themes[(r)$1] ]]; then + *) 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 - prompt_$1_setup "$*[2,-1]" - prompt_theme=( $* ) + prompt_$1_setup "$@[2,-1]" && prompt_theme=( "$@" ) # Avoid screwing up the environment listing PSZZZZ=$reset_color @@ -103,5 +163,29 @@ Options: esac } -promptinit "$@" +prompt () { + local prompt_opts + + set_prompt "$@" + + (( $#prompt_opts )) && + setopt noprompt{bang,cr,percent,subst} prompt${^prompt_opts[@]} + + true +} + +prompt_preview_theme () { + local -a psv; psv=($psvar); local -a +h psvar; psvar=($psv) # Ick + local +h PS1=$PS1 PS2=$PS2 PS3=$PS3 PS4=$PS4 RPS1=$RPS1 + trap "${$(functions precmd):-:} ; ${$(functions preexec):-:}" 0 + + print -n "$1 theme" + (( $#* > 1 )) && print -n " with parameters \`$*[2,-1]'" + print ":" + prompt_${1}_setup "$@[2,-1]" + precmd + print -P "${PS1}command arg1 arg2 ... argn" + preexec +} +[[ -o kshautoload ]] || promptinit "$@" |