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git://git.code.sf.net/p/zsh/code
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85 lines
2.5 KiB
Text
85 lines
2.5 KiB
Text
#autoload
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# send-invisible reads a line from the terminal, displaying an
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# asterisk for each character typed. It stores the line in the
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# global variable INVISIBLE, and when finished reading, inserts
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# the string ${INVISIBLE} into the original command buffer.
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# If one argument is given, it is the prompt. The default is
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# "Non-echoed text: "
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# If two or three arguments are given, they form the prefix and
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# suffix of the inserted INVISIBLE. Defaults are '${' and '}'
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# but these can be replaced, for example with '"${' and '}"' to
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# enclose the whole word in double quotes, or '${(z)' and '}' to
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# split the value of $INVISIBLE like the shell parser.
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# To use:
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# autoload -Uz send-invisible
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# zle -N send-invisible
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# bindkey '^X ' send-invisible
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# Or more elaborately:
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# hidden-command() { send-invisible '% ' '${(z)' '}' }
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# zle -N hidden-command
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# bindkey '^X%' hidden-command
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# Shamelessly cribbed from read-from-minibuffer.
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emulate -L zsh
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# Hide the value of INVISIBLE in any output of set and typeset
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typeset -g -H INVISIBLE=
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local pretext="$PREDISPLAY$LBUFFER$RBUFFER$POSTDISPLAY"$'\n'
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# Can't directly make these locals because send-invisible is
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# called as a widget, so these special variables are already
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# local at the current level and wouldn't get restored
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local save_lbuffer=$LBUFFER
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local save_rbuffer=$RBUFFER
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local save_predisplay=$PREDISPLAY
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local save_postdisplay=$POSTDISPLAY
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local -a save_region_highlight
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save_region_highlight=("${region_highlight[@]}")
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{
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local lb rb opn=${2:-'${'} cls=${3:-'}'}
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LBUFFER=
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RBUFFER=
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PREDISPLAY="$pretext${1:-Non-echoed text: }"
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POSTDISPLAY=
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region_highlight=("P${(m)#pretext} ${(m)#PREDISPLAY} bold")
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while zle -R && zle .read-command
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do
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# There are probably more commands that should go into
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# the first clause here to harmlessly beep, because ...
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case $REPLY in
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(send-invisible|run-help|undefined-key|where-is|which-command)
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zle .beep;;
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(push-*|send-break) INVISIBLE=;&
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(accept-*) break;;
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(*)
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LBUFFER=$lb
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RBUFFER=$rb
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zle $REPLY # ... this could expose something
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lb=$LBUFFER
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rb=$RBUFFER
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INVISIBLE=$BUFFER
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LBUFFER=${(l:$#LBUFFER::*:):-}
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RBUFFER=${(l:$#RBUFFER::*:):-}
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;;
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esac
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done
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} always {
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LBUFFER=$save_lbuffer
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RBUFFER=$save_rbuffer
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PREDISPLAY=$save_predisplay
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POSTDISPLAY=$save_postdisplay
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region_highlight=("${save_region_highlight[@]}")
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zle -R
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# Now that the highlight has been restored with all the old
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# text and cursor positioning, insert the new text.
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LBUFFER+=${INVISIBLE:+${opn}INVISIBLE${cls}}
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}
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