%.html:
	echo -n > $@
INDEXES = index.html $(patsubst %,%/index.html,$(SUBDIRECTORIES))
indexes: $(INDEXES)
	@:

.PHONY: clean_indexes
clean_indexes:
	$(RM) $(RMFLAGS) $(INDEXES)
clean: clean_indexes

LISTING_FILE:= listing.html
.PHONY: listing_message
listing_message:
	@echo Creating $(LISTING_FILE) from $(DIRECTORY)
.PHONY: listing
listing: BASH := /usr/bin/env bash
listing: ROOT := "../`[ -d "../${NAME}" ] && echo ${NAME} || echo $(DIRECTORY)`"
listing: CREATE := sed 's/ \\//g' | $(BASH) -s - "$(NAME)" "$(ROOT)" "$(HREFPREFIX)" "$(DETAILSATTRIBUTES)"
listing: listing_message
	@echo ' \
listing() \
{ \
    local title="$${1}" \
    local directory="$${2}" \
    local hrefprefix="$${3:+$${3}/}" \
    local detailsattributes="$${4}" \
\
    cat << _END_ \
<li><details$${detailsattributes}> \
    <summary>$${title}</summary> \
$$(list "    " "$${directory}" "$${hrefprefix}" "") \
</details> \
_END_ \
} \
list() \
{ \
    local indent="$${1}" \
    local directory="$${2}/" \
    local hrefprefix="$${3:-}" \
    local detailsattributes="$${4:-}" \
    local file="" \
    local name="" \
    echo "$${indent}<ul style=\"list-style-type:none;\">" \
    for file in $$(find $${directory} -mindepth 1 -maxdepth 1 | LC_ALL=C sort) \
    do \
        name="$$(basename "$${file}" | sed -e "s/^\..*//")" \
        if [ "$${name}" == "$(LISTING_FILE)" ] || [ "$${name}" == "" ] \
        then \
            continue \
        elif [ -d "$${file}" ] \
        then \
            if [ ! -f "$${file}/Private" ] \
            then \
                echo "$${indent}<li><details$${detailsattributes}>" \
                echo "$${indent}    <summary>$${name}</summary>" \
                list "$${indent}    " "$${file}" "$${hrefprefix}" "$${detailsattributes}" \
                echo "$${indent}</details>" \
            fi \
        elif [ -f "$${file}" ] \
        then \
            file="$$(echo "$${file}" | sed -e "s/^\.\.\///")" \
            echo "$${indent}<li><a href=\"$${hrefprefix}$${file}\">$${name}</a><br>" \
        fi \
    done \
    echo "$${indent}</ul>" \
} \
set -euo pipefail \
listing "$${1}" "$${2:-.}" "$${3:-}" "$${4:-}"' | $(CREATE) > $(LISTING_FILE)

.PHONY: clean_listing
clean_listing:
	$(RM) $(RMFLAGS) $(LISTING_FILE)
clean: clean_listing

.PHONY: text_manual
text_manual: manual
	$(RM) $(RMFLAGS) $(MANPAGE) $(MANUAL_MDOC:.mdoc=.d)

.PHONY: website
website: clean stripformfeeds .WAIT text_manual .WAIT listing .WAIT indexes