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|
#autoload
# We use the funcstack names to communicate to neighboring functions.
local tname="$funcstack[2,-1]"
if (( $# )); then
# We have arguments: the tags supported in this context.
local command="${_tag_context:-${words[1]}}" _tags contexts name
# We are given the `-c command-name' option.
if [[ "$1" = -c?* ]]; then
command="${1[3,-1]}"
shift
elif [[ "$1" = -c ]]; then
command="$2"
shift 2
fi
[[ "$1" = -(|-) ]] && shift
# Get the context names.
if [[ -n "$_sub_context" ]]; then
contexts="${1}:${_sub_context}"
else
contexts="${1}"
fi
contexts=":${command},${${contexts//::/:}//:/:${command},}:"
shift
_tags=()
# Remember offered tags.
_offered_tags=( "$_offered_tags[@]" "$@" )
_last_tags=()
# Call the function that sorts the tags into sets.
"${_sort_tags:-_sort_tags}" "$@"
# The sets are reported in $_tags, one element per set. Remove
# tags that weren't requested.
_tags=( "${(M@)_tags:#*:(${(j:|:)~argv}):*}" )
# Store the sets in a `hidden' array.
name="_prio_arr$(( _prio_num++ ))"
_prio_names[$tname]="$name"
eval "${name}=( \"\$_tags[@]\" )"
# Also store the context (used below and in _requested).
_cur_contexts="$contexts[2,-2]"
_tag_contexts[$tname]="$_cur_contexts"
# Return non-zero if at least one set of tags should be used.
return \!$#_tags
fi
# The other mode: switch to the next set of tags.
local prios="$_prio_names[$tname]"
# Reset the current context.
_cur_contexts="${_tag_contexts[$tname]}"
_failed_tags=( "$_failed_tags[@]" "$_last_tags" )
# Return failure if no sets remaining.
(( ${(P)#prios} )) || return 1
# Otherwise get the next tags.
_cur_tags[$tname]="${(@)${(@P)prios}[1]}:"
_last_tags=( "${(@)${(@s.:.)${(@P)prios}[1]}:#}" )
_tried_tags=( "$_tried_tags[@]" "$_last_tags[@]" )
shift 1 "$prios"
return 0
|
