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|
#!/bin/zsh
# zed
#
# No other shell could do this.
# Edit small files with the command line editor.
# Use ^X^W to save (or ZZ in vicmd mode), ^C to abort.
# Option -f: edit shell functions. (Also if called as fned.)
setopt localoptions noksharrays
local var opts zed_file_name
# We do not want timeout while we are editing a file
integer TMOUT=0 okargs=1 fun bind
local -a expand
zparseopts -D -A opts f b x:
fun=$+opts[-f]
bind=$+opts[-b]
if [[ $opts[-x] == <-> ]]; then
expand=(-x $opts[-x])
elif (( $+opts[-x] )); then
print -r "Integer expected after -x: $opts[-x]" >&2
return 1
fi
[[ $0 = fned ]] && fun=1
(( bind )) && okargs=0
if (( $# != okargs )); then
echo 'Usage:
zed filename
zed -f [ -x N ] function
zed -b' >&2
return 1
fi
local curcontext=zed:::
# Matching used in zstyle -m: hide result from caller.
# Variables not used directly here.
local -a match mbegin mend
zstyle -m ":completion:zed:*" insert-tab '*' ||
zstyle ":completion:zed:*" insert-tab yes
zmodload zsh/terminfo 2>/dev/null
__zed_pg_up()
{
integer count=$(( LINES / 2 - 1 ))
while (( count -- )); do
zle up-line
done
}
__zed_pg_down()
{
integer count=$(( LINES / 2 - 1 ))
while (( count -- )); do
zle down-line
done
}
if ! zle -la __zed_pg_up __zed_pg_down; then
zle -N __zed_pg_up
zle -N __zed_pg_down
fi
if (( bind )) || ! bindkey -M zed >&/dev/null; then
# Make the zed keymap a copy of the current main.
bindkey -N zed main
# Save the current main. In zle widgets called from
# zed we may want to set this temporally.
bindkey -A main zed-normal-keymap
# Define a widget to use at startup, undo shouldn't clear initial buffer
__zed_init() {
UNDO_LIMIT_NO=$UNDO_CHANGE_NO
}
zle -N __zed_init
# Assign some default keys.
# Depending on your stty's, you may be able to use ^J as accept-line, else:
# The following isn't useful if we are copying viins, but that's
# a nicety.
bindkey -M zed '^x^w' accept-line
bindkey -M zed '^M' self-insert-unmeta
[[ ${+terminfo} = 1 ]] && {
[[ -n "$terminfo[kpp]" ]] && bindkey -M zed "$terminfo[kpp]" __zed_pg_up
[[ -n "$terminfo[knp]" ]] && bindkey -M zed "$terminfo[knp]" __zed_pg_down
[[ -n "$terminfo[khome]" ]] && bindkey -M zed "$terminfo[khome]" beginning-of-line
[[ -n "$terminfo[kend]" ]] && bindkey -M zed "$terminfo[kend]" end-of-line
# Fallback to well known code as terminfo might be wrong (often) sometimes
bindkey -M zed "^[[H" beginning-of-line
bindkey -M zed "^[[F" end-of-line
}
# Make zed-set-file-name available.
# Assume it's in fpath; there's no error at this point if it isn't
autoload -Uz zed-set-file-name
zle -N zed-set-file-name
fi
if (( bind )) || ! bindkey -M zed-vicmd >&/dev/null; then
bindkey -N zed-vicmd vicmd
bindkey -M zed-vicmd "ZZ" accept-line
[[ ${+terminfo} = 1 ]] && {
[[ -n "$terminfo[kpp]" ]] && bindkey -M zed-vicmd "$terminfo[kpp]" __zed_pg_up
[[ -n "$terminfo[knp]" ]] && bindkey -M zed-vicmd "$terminfo[knp]" __zed_pg_down
[[ -n "$terminfo[khome]" ]] && bindkey -M zed-vicmd "$terminfo[khome]" vi-beginning-of-line
[[ -n "$terminfo[kend]" ]] && bindkey -M zed-vicmd "$terminfo[kend]" vi-end-of-line
# Fallback to well known code as terminfo might be wrong (often) sometimes
bindkey -M zed-vicmd "^[[H" vi-beginning-of-line
bindkey -M zed-vicmd "^[[F" vi-end-of-line
}
fi
(( bind )) && return 0
# don't mangle !'s
setopt localoptions nobanghist
if ((fun)) then
var="$(functions $expand -- $1)"
# If function is undefined but autoloadable, load it
if [[ $var = *\#\ undefined* ]] then
var="$(autoload +X $1; functions -- $1)"
elif [[ -z $var ]] then
var="${(q-)1} () {
}"
fi
vared -M zed -m zed-vicmd -i __zed_init var && eval function "$var"
else
zed_file_name=$1
[[ -f $1 ]] && var="$(<$1)"
while vared -M zed -m zed-vicmd -i __zed_init var
do
{
print -r -- "$var" >| $zed_file_name
} always {
(( TRY_BLOCK_ERROR = 0 ))
} && break
echo -n -e '\a'
done
fi
return 0
# End of zed
|
