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#autoload
# This function can be used to separately complete parts of strings
# where each part may be one of a set of matches and different parts
# have different sets.
# Arguments are alternately arrays and separator strings. Arrays may
# be given by name or literally as words separated by white space in
# parentheses, e.g.:
#
# _sep_parts '(foo bar)' @ hosts
#
# This will make this function complete the strings `foo' and `bar'.
# If the string on the line contains a `@', the substring after it
# will be completed from the array `hosts'. Of course more arrays
# may be given, each preceded by another separator string.
#
# This function understands the `-J group', `-V group', and
# `-X explanation' options.
local str arr sep test testarr tmparr prefix suffixes autosuffix
local matchflags opt group expl nm=$compstate[nmatches] opre osuf opts matcher
# Get the options.
zparseopts -D -a opts 'J+:=group' 'V+:=group' P: F: S: r: R: q 1 2 o+: n \
'x+:=expl' 'X+:=expl' 'M+:=matcher'
# Get the string from the line.
opre="$PREFIX"
osuf="$SUFFIX"
str="$PREFIX$SUFFIX"
SUFFIX=""
prefix=""
# Walk through the arguments to find the longest unambiguous prefix.
while [[ $# -gt 1 ]]; do
# Get the next array and separator.
arr="$1"
sep="$2"
if [[ "$arr[1]" == '(' ]]; then
tmparr=( ${=arr[2,-2]} )
arr=tmparr
fi
# Is the separator on the line?
[[ "$str" != *${sep}* ]] && break
# Get the matching array elements.
PREFIX="${str%%(|\\)${sep}*}"
builtin compadd -O testarr "$matcher[@]" -a "$arr"
[[ $#testarr -eq 0 && -n "$_comp_correct" ]] &&
compadd -O testarr "$matcher[@]" -a "$arr"
# If there are no matches we give up. If there is more than one
# match, this is the part we will complete.
(( $#testarr )) || return 1
[[ $#testarr -gt 1 ]] && break
# Only one match, add it to the prefix and skip over it in `str',
# continuing with the next array and separator.
prefix="${prefix}${testarr[1]}${sep}"
str="${str#*${sep}}"
shift 2
done
# Get the array to work upon.
arr="$1"
if [[ "$arr[1]" == '(' ]]; then
tmparr=( ${=arr[2,-2]} )
arr=tmparr
fi
if [[ $# -le 1 || "$str" != *${2}* ]]; then
# No more separators, build the matches.
PREFIX="$str"
builtin compadd -O testarr "$matcher[@]" -a "$arr"
[[ $#testarr -eq 0 && -n "$_comp_correct" ]] &&
compadd -O testarr "$matcher[@]" -a "$arr"
fi
[[ $#testarr -eq 0 || ${#testarr[1]} -eq 0 ]] && return 1
# Now we build the suffixes to give to the completion code.
shift
suffixes=("")
autosuffix=()
while [[ $# -gt 0 && "$str" == *${1}* ]]; do
# Remove anything up to the suffix.
str="${str#*${1}}"
# Again, we get the string from the line up to the next separator
# and build a pattern from it.
if [[ $# -gt 2 ]]; then
PREFIX="${str%%${3}*}"
else
PREFIX="$str"
fi
# We incrementally add suffixes by appending to them the separators
# and the strings from the next array that match the pattern we built.
arr="$2"
if [[ "$arr[1]" == '(' ]]; then
tmparr=( ${=arr[2,-2]} )
arr=tmparr
fi
builtin compadd -O tmparr "$matcher[@]" -a "$arr"
[[ $#tmparr -eq 0 && -n "$_comp_correct" ]] &&
compadd -O tmparr "$matcher[@]" - "$arr"
suffixes=("${(@)^suffixes[@]}${(q)1}${(@)^tmparr}")
shift 2
done
# If we were given at least one more separator we make the completion
# code offer it by appending it as a autoremovable suffix.
(( $# )) && autosuffix=(-qS "${(q)1}")
# Add the matches for each of the suffixes.
PREFIX="$pre"
SUFFIX="$suf"
for i in "$suffixes[@]"; do
compadd -U "$group[@]" "$expl[@]" "$autosuffix[@]" "$opts[@]" \
-i "$IPREFIX" -I "$ISUFFIX" -p "$prefix" -s "$i" -a testarr
done
# This sets the return value to indicate that we added matches (or not).
[[ nm -ne compstate[nmatches] ]]
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