From 438014583ba2c244675d0f8d7f7f8bf9d568a7c8 Mon Sep 17 00:00:00 2001
From: EuAndreh <eu@euandre.org>
Date: Sun, 1 Sep 2024 09:14:28 -0300
Subject: Initial version

---
 src/conf       | 217 ++++++++++++++++++++++++++++++++++++----
 src/feed       |  60 +++++------
 src/feedentry  |  53 ++++++++++
 src/html       | 307 ++++++++++++++++++++++++++++-----------------------------
 src/htmlbody   |  26 ++++-
 src/indexbody  |  24 +++++
 src/indexentry |  20 ++++
 src/mkwb.in    |   4 +-
 src/snippets   |  27 +++++
 src/sortdata   |  16 +--
 src/xmlentry   |  48 ---------
 11 files changed, 536 insertions(+), 266 deletions(-)
 create mode 100755 src/feedentry
 create mode 100755 src/indexbody
 create mode 100755 src/indexentry
 create mode 100755 src/snippets
 delete mode 100755 src/xmlentry

(limited to 'src')

diff --git a/src/conf b/src/conf
index 6aa6761..d132a34 100755
--- a/src/conf
+++ b/src/conf
@@ -1,30 +1,207 @@
 #!/bin/sh
-set -eu
+set -euo pipefail
 
 
 usage() {
-	echo 'Usage: conf FILENAME'
+	echo 'Usage: conf BASECONF [GLOBALCONF FILENAME.adoc]'
 }
 
-FILENAME="${1:-}"
+
+needs() {
+	if [ -z "${1:-}" ]; then
+		printf '%s\n' "$2" >&2
+		exit 1
+	fi
+}
+
+DATE_I='+%Y-%m-%d'
+DATE_Is="${DATE_I}T%H:%M:%S%:z"
+datex() {
+	# date(1), plus non-POSIX -d option
+	DATESTR="$1"
+	shift
+	date -d "$DATESTR" "$@"
+}
+
+dateiso() {
+	datex "$1" -u "$DATE_Is"
+}
+
+BASECONF="${1:-}"
+GLOBALCONF="${2:-}"
+FILENAME="${3:-}"
+eval "$(assert-arg -- "$BASECONF" 'BASECONF')"
+. "$(realpath -- "$BASECONF")"
+
+
+needs "${url_pre:-}"            'Missing required $url_pre (e.g. https://example.com)'
+needs "${site_name:-}"          'Missing required $site_name'
+needs "${feed_title:-}"         'Missing required $feed_title'
+needs "${feed_url:-}"           'Missing required $feed_url'
+needs "${feed_alternate_url:-}" 'Missing required $feed_alternate_url'
+
+needs "${list_addr:-}"              'Missing required $list_addr'
+needs "${discussions_url_prefix:-}" 'Missing required $discussions_url_prefix'
+
+needs "${email:-}"                 'Missing required $email'
+needs "${author:-}"                'Missing required $author'
+needs "${sourcecode_url:-}"        'Missing required $sourcecode_url'
+needs "${sourcecode_url_prefix:-}" 'Missing required $sourcecode_url_prefix'
+
+
+if [ -z "$GLOBALCONF" ]; then
+	now_iso="$(dateiso "@${SOURCE_DATE_EPOCH:-$(date '+%s')}" | shesc)"
+	feed_title_html="$(printf '%s\n' "$feed_title" | htmlesc | shesc)"
+	site_name_html="$( printf '%s\n' "$site_name"  | htmlesc | shesc)"
+	if [ -z "${logo_alt:-}" ]; then
+		logo_alt='The website logo'
+	fi
+	logo_alt="$(printf '%s\n' "$logo_alt" | htmlesc | shesc)"
+
+	cat <<-EOF
+		export now_iso="$now_iso"
+		export feed_title_html="$feed_title_html"
+		export site_name_html="$site_name_html"
+		export feed_url_absolute="$url_pre/$feed_url"
+		export feed_alternate_url_absolute="$url_pre/$feed_alternate_url"
+		export logo_alt="$logo_alt"
+	EOF
+	exit
+fi
+
+eval "$(assert-arg -- "$BASECONF" 'BASECONF')"
 eval "$(assert-arg -- "$FILENAME" 'FILENAME')"
+. "$(realpath -- "$GLOBALCONF")"
+
+trap 'rm -f -- "$FILENAME".embedded-config' EXIT
+
+{
+	if head -n1 -- "$FILENAME" | grep -q '^////$'; then
+		awk 'sep > 1 {exit}; /^\/{4}$/ { sep++; next } { print }' \
+			"$FILENAME"
+	fi
+} > "$FILENAME".embedded-config
+. "$(realpath -- "$FILENAME".embedded-config)"
+
+is_article() {
+	printf '%s\n' "$FILENAME" | grep -qE \
+		"^${root_dir}[-a-zA-Z0-9/]*/[0-9]{4}/[0-9]{2}/[0-9]{2}/[-A-Za-z0-9]+\.adoc$"
+		#^  src      /blog/d/a     /1970    /01      /01/     /some-file-N4me.adoc
+}
+
+base_url() {
+	# src/sub/dirs/file.txt -> ../..
+	# src/file.txt -> .
+	printf '%s/\n' "$(dirname -- "$UNPREFIXED")" |
+		sed \
+			-e 's|[^/]*/|../|g' \
+			-e 's|/$||'         \
+			-e 's|^\.\.$|.|'
+}
+
+last3dirnames() {
+	dirname -- "$UNPREFIXED" | tr '/' '\n' | tail -n3 | paste -sd-
+}
+
+datefmt() {
+	LANG=en_GB.UTF-8 datex "$1" -u '+%B %-d, %Y'
+}
+
+
+if [ -z "${root_dir:-}" ]; then
+	root_dir="$(dirname -- "$BASECONF")"
+fi
+root_dir="${root_dir%/}"
 
+if [ -z "${img_dir:-}" ]; then
+	img_dir=img
+fi
+img_dir="${img_dir%/}"
 
-date="$(dirname "${FILENAME#src/}" | tr '/' '-')"
-date_iso="$(date -ud "${date:?}" -Is)" # FIXME: non POSIX
-printf 'export date_iso="%s"\n' "$date_iso"
-
-cat <<-'EOF'
-	export domain="DOMAIN"
-	export email="EMAIL"
-	export base_url=''
-	export list_addr='~euandreh/public-inbox@lists.sr.ht'
-	export mailto_uri_prefix="mailto:$list_addr?Subject=Re%3A%20"
-	export discussions_url_prefix="https://lists.sr.ht/~euandreh/public-inbox?search="
-	export sourcecode_url_prefix="https://$domain/git/$domain/tree/"
-	export author='EuAndreh'
-	export url='url1'
-	export site_name='site_name1'
-	export feed_article_title='Articles from papo.im'
-	export lang=en
+UNPREFIXED="${FILENAME#$root_dir/}"
+
+cat "$BASECONF" "$GLOBALCONF"
+
+date_iso=
+date_formatted=
+updatedat_iso=
+updatedat_formatted=
+if is_article; then
+	date_iso="$(dateiso "$(last3dirnames)" | shesc)"
+	date_formatted="$(datefmt "$date_iso" | shesc)"
+	if [ -n "${updatedat:-}" ]; then
+		updatedat_iso="$(dateiso "$updatedat" | shesc)"
+		updatedat_formatted="$(datefmt "$updatedat_iso" | shesc)"
+	fi
+fi
+
+BASE_URL="$(base_url)"
+TITLE_RAW="$(cat -- "$FILENAME" | grep '^= .*' | head -n1 | cut -d' ' -f2-)"
+TITLEFULL_RAW="$TITLE_RAW | $site_name"
+
+if [ -z "${css_url:-}" ]; then
+	css_url="$BASE_URL/style.css"
+fi
+if [ -z "${atom_url:-}" ]; then
+	atom_url="$BASE_URL/atom.xml"
+fi
+if [ -z "${atomicon_url:-}" ]; then
+	needs "${img_dir:-}" 'Define either $atomicon_url or $img_dir'
+	atomicon_url="$BASE_URL/$img_dir/atom.svg"
+fi
+if [ -z "${favicon_url:-}" ]; then
+	needs "${img_dir:-}" 'Define either $favicon_url or $img_dir'
+	favicon_url="$BASE_URL/$img_dir/favicon.svg"
+fi
+if [ -z "${logo_url_prefix:-}" ]; then
+	needs "${img_dir:-}" 'Define either $logo_url_prefix or $img_dir'
+	logo_url_prefix="$BASE_URL/$img_dir/logo"
+fi
+if [ -z "${envelopeicon_url_prefix:-}" ]; then
+	needs "${img_dir:-}" 'Define either $envelopeicon_url_prefix or $img_dir'
+	envelopeicon_url_prefix="$BASE_URL/$img_dir/envelope"
+fi
+
+title_uri="$(printf '%s' "$TITLE_RAW" | uri)"
+comment_url="$(printf 'mailto:%s?Subject=Re%%3A%%20%s\n' "$list_addr" "$title_uri" | shesc)"
+discussions_url="$(printf '%s%s\n' "$discussions_url_prefix" "$title_uri" | shesc)"
+
+url="$(printf '%s\n' "${UNPREFIXED%.adoc}.html" | shesc)"
+
+css_url="$(                printf '%s\n' "$css_url"                 | shesc)"
+atom_url="$(               printf '%s\n' "$atom_url"                | shesc)"
+atomicon_url="$(           printf '%s\n' "$atomicon_url"            | shesc)"
+favicon_url="$(            printf '%s\n' "$favicon_url"             | shesc)"
+logo_url_prefix="$(        printf '%s\n' "$logo_url_prefix"         | shesc)"
+envelopeicon_url_prefix="$(printf '%s\n' "$envelopeicon_url_prefix" | shesc)"
+
+source_path="$(printf '%s\n' "$FILENAME" | shesc)"
+base_url_prefix="$(printf '%s\n' "$BASE_URL" | shesc)"
+title="$(         printf '%s\n' "$TITLE_RAW"     |           shesc)"
+title_html="$(    printf '%s\n' "$TITLE_RAW"     | htmlesc | shesc)"
+titlefull="$(     printf '%s\n' "$TITLEFULL_RAW" |           shesc)"
+titlefull_html="$(printf '%s\n' "$TITLEFULL_RAW" | htmlesc | shesc)"
+cat <<-EOF
+	export css_url="$css_url"
+	export atom_url="$atom_url"
+	export atomicon_url="$atomicon_url"
+	export favicon_url="$favicon_url"
+	export logo_url_prefix="$logo_url_prefix"
+	export envelopeicon_url_prefix="$envelopeicon_url_prefix"
+	export source_path="$source_path"
+	export url="$url"
+	export url_absolute="$url_pre/$url"
+	export base_url_prefix="$base_url_prefix"
+	export title="$title"
+	export title_html="$title_html"
+	export titlefull="$titlefull"
+	export titlefull_html="$titlefull_html"
+	export date_iso="$date_iso"
+	export date_formatted="$date_formatted"
+	export updatedat_iso="$updatedat_iso"
+	export updatedat_formatted="$updatedat_formatted"
+	export comment_url="$comment_url"
+	export discussions_url="$discussions_url"
 EOF
+
+cat "$FILENAME".embedded-config
diff --git a/src/feed b/src/feed
index f202ba6..aa42899 100755
--- a/src/feed
+++ b/src/feed
@@ -1,52 +1,52 @@
 #!/bin/sh
-set -eu
+set -euo pipefail
+
 
 usage() {
-	echo 'Usage: feed FILENAME'
+	echo 'Usage: feed BASECONF GLOBALCONF FILENAME.sortdata...'
 }
 
-FILENAME="${1:-}"
-eval "$(assert-arg -- "$FILENAME" 'FILENAME')"
-
+BASECONF="${1:-}"
+GLOBALCONF="${2:-}"
+FILES="${3:-}"
+eval "$(assert-arg -- "$BASECONF"   'BASECONF')"
+eval "$(assert-arg -- "$GLOBALCONF" 'GLOBALCONF')"
+eval "$(assert-arg -- "$FILES"      'FILENAME.sortdata...')"
+. "$(realpath -- "$BASECONF")"
+. "$(realpath -- "$GLOBALCONF")"
+shift
+shift
 
-absolute() {
-	printf 'https://domain-here.com/%s' "$(cat -)"
-}
 
-feed_article_title=''
-site_name=' '
-lang=en
-now="$(date -uIs)"
-url_absolute="$(printf '%s' "${FILENAME#src/}" | absolute)"
-site_name_html="$(htmlesc "${site_name:?}")"
-collection=article
-collection_url_absolute="$(printf '%s' ${lang:?}/ | absolute)"
-feed_title_html="$(eval "echo \"\$feed_${collection}_title\"" | htmlesc)"
-export now url_absolute site_name_html collection_url_absolute feed_title_html
-
-DIR="$(dirname "$FILENAME")"
-
-author=
-email=
-cat <<EOF
+pre() {
+	cat <<EOF | sed '/^$/d'
 <feed
     xmlns="http://www.w3.org/2005/Atom"
     xmlns:content="http://purl.org/rss/1.0/modules/content/"
-    xml:lang="$lang">
-  <link href="$url_absolute" rel="self" type="application/atom+xml" />
-  <link href="$collection_url_absolute" rel="alternate" type="text/html" hreflang="$lang" />
+    xml:lang="en">
+  <link rel="self"      type="application/atom+xml" href="$feed_url_absolute" />
+  <link rel="alternate" type="text/html"            href="$feed_alternate_url_absolute" hreflang="en" />
   <title>$site_name_html</title>
   <subtitle>$feed_title_html</subtitle>
-  <id>$url_absolute</id>
-  <updated>$now</updated>
+  <id>$feed_url_absolute</id>
+  <updated>$now_iso</updated>
 
   <author>
     <name>$author</name>
     <email>$email</email>
   </author>
 EOF
+}
+
+post() {
+	printf '</feed>\n'
+}
+
+pre
 find "$@" |
 	xargs cat |
 	sort -nr |
+	xargs cat |
+	sed 's/\.conf$/.feedentry/' |
 	xargs cat
-printf '</feed>\n'
+post
diff --git a/src/feedentry b/src/feedentry
new file mode 100755
index 0000000..6299e6f
--- /dev/null
+++ b/src/feedentry
@@ -0,0 +1,53 @@
+#!/bin/sh
+set -euo pipefail
+
+
+usage() {
+	echo 'Usage: feedentry FILENAME.htmlbody'
+}
+
+FILENAME="${1:-}"
+eval "$(assert-arg -- "$FILENAME" 'FILENAME.htmlbody')"
+. "$(realpath -- "${FILENAME%.*}.conf")"
+
+
+update_xml=
+if [ -n "${updated_at:-}" ]; then
+	update_iso="$(date -ud "$updated_at" -Is)"
+	update_xml="    <updated>
+      $update_iso
+    </updated>"
+fi
+
+cat <<EOF | sed '/^$/d'
+  <entry xml:lang="en">
+    <title type="html">
+      $title_html
+    </title>
+    <link type="text/html" rel="alternative" href="$url_absolute" title="$title_html" />
+    <published>
+      $date_iso
+    </published>
+$update_xml
+    <id>
+      $url_absolute
+    </id>
+    <author>
+      <name>
+        $author
+      </name>
+      <email>
+        $email
+      </email>
+    </author>
+
+    <summary type="html">
+EOF
+
+head -n5 < "$FILENAME" | htmlesc
+printf '    </summary>\n'
+printf '    <content type="html" xml:base="%s">\n' "${url:?}"
+
+htmlesc < "$FILENAME"
+printf '    </content>\n'
+printf '  </entry>\n'
diff --git a/src/html b/src/html
index 007fcc2..3e100cb 100755
--- a/src/html
+++ b/src/html
@@ -1,174 +1,165 @@
 #!/bin/sh
-set -eu
+set -euo pipefail
+
 
 usage() {
-	echo 'Usage: html FILENAME'
+	echo 'Usage: html FILENAME.htmlbody'
 }
 
 FILENAME="${1:-}"
-eval "$(assert-arg -- "$FILENAME" 'FILENAME')"
-
-. "${FILENAME%.*}.conf"
-
-#
-# Utility functions
-#
-
-INDENT='        '
-markdown_to_html() {
-	md2html | awk -vINDENT="$INDENT" '
-		BEGIN {
-			in_block = 0
-		}
-
-		{
-			if (in_block == 0) {
-				printf "%s", INDENT
-			}
-			print
-		}
-
-		/^<\/code><\/pre>$/ {
-			in_block = 0
-		}
-
-		/^<pre><code/ {
-			in_block = 1
-		}
-	'
+eval "$(assert-arg -- "$FILENAME" 'FILENAME.htmlbody')"
+. "$(realpath -- "${FILENAME%.*}.conf")"
+
+
+dates() {
+	if [ -z "$date_formatted" ]; then
+		return
+	fi
+
+	cat <<EOF
+        <section id="timestamps">
+          <p id="published-at">
+            Posted on <time datetime="$date_iso">$date_formatted</time>
+          </p>
+EOF
+
+	if [ -n "$updatedat_formatted" ]; then
+		cat <<EOF
+          <p id="updated-at">
+            Updated on <time datetime="$updatedat_iso">"$updatedat_formatted</time>"
+          </p>
+EOF
+	fi
+
+	cat <<EOF
+        </section>
+EOF
 }
 
-extract_plaintext_snippets() (
-	SNIPPETS="${FILENAME%.*}.snippets"
-	printf '' > "$SNIPPETS"
-	F="$(mkstemp)"
-	cat > "$F"
-	IFS=''
-	BLOCK_NUMBER=0
-	IN_BLOCK=
-	while read -r line; do
-		if [ "$line" = '</code></pre>' ]; then
-			IN_BLOCK=
-		fi
-
-		if [ -n "$IN_BLOCK" ]; then
-			printf '%s\n' "$line" | htmlesc -d >> "$OUT"
-		fi
-
-		if printf '%s' "$line" | grep -q "^$INDENT<pre><code"; then
-			IN_BLOCK=1
-			OUT="${FILENAME%.*}.html.$BLOCK_NUMBER.txt"
-			BLOCK_NUMBER=$((BLOCK_NUMBER + 1))
-			printf '%s\n' "$line" |
-				sed "s|^\($INDENT<pre><code.*>\)\(.*\)$|\2|" |
-				htmlesc -d > "$OUT"
-			printf '%s\n' "$OUT" >> "$SNIPPETS"
-		fi
-	done < "$F"
-
-	BLOCK_NUMBER=0
-	while read -r line; do
-		printf '%s\n' "$line"
-
-		if [ "$line" = '</code></pre>' ]; then
-			printf '%s<p class="plaintext-link"><a href="%s">plaintext</a></p>\n' \
-				"$INDENT" \
-				"$(basename "${url_part:?}").$BLOCK_NUMBER.txt"
-			BLOCK_NUMBER=$((BLOCK_NUMBER + 1))
-		fi
-	done < "$F"
-)
-
-add_line_numbers() {
-	awk '
-		/^<\/code><\/pre>$/ {
-			in_block = 0
-			printf "</tbody></table>%s\n", $0
-			next
-		}
-
-		match($0, /^( +<pre><code.*>)(.*)$/, a) {
-			printf "%s<table rules=columns class=\"code-block\"><tbody>", a[1]
-
-			n = 1
-			block_count++
-			printf "<tr><td class=\"line-number\"><a id=\"B%s-L%s\" href=\"#B%s-L%s\">%s</a></td><td class=\"code-line\">%s</td></tr>\n", block_count, n, block_count, n, n, a[2]
-			in_block = 1
-			next
-		}
-
-		in_block == 1 {
-			n++
-			printf "<tr><td class=\"line-number\"><a id=\"B%s-L%s\" href=\"#B%s-L%s\">%s</a></td><td class=\"code-line\">%s</td></tr>\n", block_count, n, block_count, n, n, $0
-			next
-		}
-
-		{ print }
-	'
-}
+h1() {
+	if [ "${custom_body:-}" = true ]; then
+		return
+	fi
 
-add_headings_anchors() (
-	IFS=''
-	while read -r line; do
-		if ! printf '%s' "$line" | grep -q "^$INDENT<h[2-6]>"; then
-			printf '%s\n' "$line"
-			continue
-		fi
-		LVL="$(printf '%s' "$line" | sed "s|^$INDENT<h\(.\)>.*|\1|")"
-		HEADING="$(printf '%s' "$line" | sed "s|^$INDENT<h.>\(.*\)</h.>$|\1|")"
-		SLUG="$(slugify "$HEADING")"
-		printf '%s<h%s class="header-anchor" id="%s">%s<a href="#%s" aria-hidden="true"><img class="svg-icon" src="%s" /></a></h%s>\n' \
-			"$INDENT"  \
-			"$LVL"     \
-			"$SLUG"    \
-			"$HEADING" \
-			"$SLUG"    \
-			"${icon_link_url:?}" \
-			"$LVL"
-	done
-)
-
-
-warn_duplicate_ids() {
-	F="$(mkstemp)"
-	tee "$F"
-	{
-		grep "^$INDENT<h[2-6] class=\"header-anchor\" id=\"" |
-			sed "s|^$INDENT<h[2-6] class=\"header-anchor\" id=\"\(.*\)\">.*<a href=.*$|\1|" |
-			sort |
-			uniq -c |
-			awk -v F="$FILENAME" '$1 != 1 {
-				printf "WARNING: duplicate header id: %s: %s\n", F, $2
-			}'
-	} >&2 < "$F"
-	rm "$F"
+	cat <<EOF
+        <h1>
+          $title_html
+        </h1>
+EOF
 }
 
-emit_body() {
-	< "${FILENAME%.*}.content" \
-		markdown_to_html           |
-		extract_plaintext_snippets |
-		add_line_numbers           |
-		add_headings_anchors       |
-		warn_duplicate_ids
+comments() {
+	if [ "${custom_body:-}" = true ]; then
+		return
+	fi
+
+	cat <<EOF
+        <section>
+          <hr />
+          <footer>
+            <p id="comment">
+              <a href="$comment_url">Comment</a>
+              about this page and see
+              <a href="$discussions_url">existing discussions</a>
+              |
+              <a href="$sourcecode_url_prefix/$source_path">view source</a>
+            </p>
+          </footer>
+        </section>
+EOF
 }
 
-if [ -r "$FILENAME".prev ]; then
-	collection_head_prev_html="$(
-		printf '    <link rel="prev"       type="text/html"            href="%s" />' \
-			"$(url-for < "$FILENAME".prev)"
-	)"
-	export collection_head_prev_html
-fi
 
-if [ -r "$FILENAME".next ]; then
-	collection_head_next_html="$(
-		printf '    <link rel="next"       type="text/html"            href="%s" />' \
-			"$(url-for < "$FILENAME".next)"
-	)"
-	export collection_head_next_html
+head_meta_author_html=
+if [ -n "${author:-}" ]; then
+	head_meta_author_html="    <meta name=\"author\"   content=\"$author\" />"
 fi
 
-envsubst < lib/preamble.html  | sed '/^$/d'
-emit_body | tee "${FILENAME%.*}.htmlbody"
-envsubst < lib/postamble.html | sed '/^$/d'
+
+headlinks() {
+	if [ -z "${header_links:-}" ]; then
+		return
+	fi
+
+	echo '        <ol>'
+
+	while read -r line; do
+		link="$(printf '%s\n' "$line" | cut -d'	' -f1)"
+		name="$(printf '%s\n' "$line" | cut -d'	' -f2)"
+		cat <<EOF
+          <li>
+            <a href="$base_url_prefix/$link">$name</a>
+          </li>
+EOF
+	done < "$header_links"
+
+	echo '        </ol>'
+}
+
+
+collection_head_prev_html=
+collection_head_post_html=
+cat <<EOF | sed '/^$/d'
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+$head_meta_author_html
+    <link rel="stylesheet"    type="text/css"             href="$css_url" />
+    <link rel="shortcut icon" type="image/svg+xml"        href="$favicon_url" />
+    <link rel="canonical"     type="text/html"            href="$url_absolute" />
+    <link rel="alternate"     type="application/atom+xml" href="$atom_url" title="$feed_title_html" />
+$collection_head_prev_html
+$collection_head_post_html
+    <title>$titlefull_html</title>
+  </head>
+  <body>
+    <header>
+      <nav>
+        <a href="$base_url_prefix/">
+          <picture>
+            <source srcset="$logo_url_prefix/dark.svg" media="(prefers-color-scheme: dark)" />
+            <img       src="$logo_url_prefix/light.svg" alt="$logo_alt" />
+          </picture>
+        </a>
+$(headlinks)
+      </nav>
+      <hr />
+    </header>
+    <main>
+      <article>
+EOF
+
+h1
+dates
+
+cat "$FILENAME"
+
+comments
+
+cat <<EOF
+      </article>
+    </main>
+    <footer>
+      <hr />
+      <ul>
+        <li>
+          <picture>
+            <source srcset="$envelopeicon_url_prefix/dark.svg" media="(prefers-color-scheme: dark)" />
+            <img       src="$envelopeicon_url_prefix/light.svg" class="icon" alt="An outlined icon of an envelope" />
+          </picture>
+          <a href="mailto:$email">$email</a>
+        </li>
+      </ul>
+      <p id="license">
+        The content for this site is licensed under
+        <a rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/">CC BY-SA 4.0</a>.
+        The <a href="$sourcecode_url/">code</a> is
+        <a rel="license" href="$sourcecode_url_prefix/COPYING">AGPLv3 or later</a>.
+        Patches welcome.
+      </p>
+    </footer>
+  </body>
+</html>
+EOF
diff --git a/src/htmlbody b/src/htmlbody
index 53a4485..e4e5692 100755
--- a/src/htmlbody
+++ b/src/htmlbody
@@ -1,4 +1,26 @@
 #!/bin/sh
-set -eu
+set -euo pipefail
 
-cat "${1:--}" | asciidoctor -s -
+
+usage() {
+	echo 'Usage: htmlbody FILENAME.adoc'
+}
+
+FILENAME="${1:-}"
+eval "$(assert-arg -- "$FILENAME" 'FILENAME.adoc')"
+
+
+plaintext_links() {
+	awk -v BASE="$(basename "$FILENAME" .adoc)".html l'
+	{ print }
+	/^----$/ {
+		in_block = !in_block
+		if (in_block) {
+			next
+		}
+		file = BASE "." count++ ".txt"
+		print "link:" file "[plaintext,role=plaintext]"
+	}' "$1"
+}
+
+plaintext_links "$FILENAME" | asciidoctor -s -
diff --git a/src/indexbody b/src/indexbody
new file mode 100755
index 0000000..93b4f90
--- /dev/null
+++ b/src/indexbody
@@ -0,0 +1,24 @@
+#!/bin/sh
+set -euo pipefail
+
+
+usage() {
+	echo 'Usage: index FILENAME.conf FILENAME.sortdata...]'
+}
+
+FILENAME="${1:-}"
+FILES="${2:-}"
+eval "$(assert-arg -- "$FILENAME" 'FILENAME.conf')"
+eval "$(assert-arg -- "$FILES"    'FILENAME.sortdata...')"
+. "$(realpath -- "$FILENAME")"
+shift
+
+
+printf '        <ol class="collection-list">\n'
+find "$@" |
+	xargs cat |
+	sort -nr |
+	xargs cat |
+	sed 's/\.conf$/.indexentry/' |
+	xargs cat
+printf '        </ol>\n'
diff --git a/src/indexentry b/src/indexentry
new file mode 100755
index 0000000..07ffa4a
--- /dev/null
+++ b/src/indexentry
@@ -0,0 +1,20 @@
+#!/bin/sh
+set -euo pipefail
+
+
+usage() {
+	echo 'Usage: indexentry FILENAME.conf'
+}
+
+FILENAME="${1:-}"
+eval "$(assert-arg -- "$FILENAME" 'FILENAME.conf')"
+. "$(realpath -- "$FILENAME")"
+
+
+cat <<EOF
+          <li>
+            $date_formatted
+            <br />
+            <a href="$url">$title_html</a>
+          </li>
+EOF
diff --git a/src/mkwb.in b/src/mkwb.in
index 2c698e1..438f779 100755
--- a/src/mkwb.in
+++ b/src/mkwb.in
@@ -1,5 +1,6 @@
 #!/bin/sh
-set -eu
+set -euo pipefail
+
 
 usage() {
 	echo 'Usage: mkwb ACTION [OPTION...]'
@@ -9,4 +10,5 @@ ACTION="${1:-}"
 eval "$(assert-arg -- "$ACTION" 'ACTION')"
 shift
 
+
 exec '@LIBEXECDIR@'/"$ACTION" "$@"
diff --git a/src/snippets b/src/snippets
new file mode 100755
index 0000000..e2d7557
--- /dev/null
+++ b/src/snippets
@@ -0,0 +1,27 @@
+#!/bin/sh
+set -euo pipefail
+
+
+usage() {
+	echo 'Usage: snippets FILENAME.adoc'
+}
+
+FILENAME="${1:-}"
+eval "$(assert-arg -- "$FILENAME" 'FILENAME.adoc')"
+
+
+awk -v BASE="${FILENAME%.adoc}.html" '
+/^----$/ {
+	if (!in_block) {
+		file = BASE "." count++ ".txt"
+		system("rm -f " file)
+	}
+	in_block = !in_block
+	next
+}
+
+in_block {
+	print >> file
+	print file
+}
+' "$FILENAME"
diff --git a/src/sortdata b/src/sortdata
index 5b0b238..df64e9f 100755
--- a/src/sortdata
+++ b/src/sortdata
@@ -1,14 +1,16 @@
 #!/bin/sh
-set -eu
+set -euo pipefail
+
 
 usage() {
-	echo 'Usage: sortdata ENTRYPATH'
+	echo 'Usage: sortdata FILENAME.conf'
 }
 
-ENTRYPATH="${1:-}"
-eval "$(assert-arg -- "$ENTRYPATH" 'ENTRYPATH')"
-. "${ENTRYPATH%.*}.conf"
+FILENAME="${1:-}"
+eval "$(assert-arg -- "$FILENAME" 'FILENAME.conf')"
+. "$(realpath -- "$FILENAME")"
+
 
-f=src/"$date_iso".sortdata
-ln -frs "${ENTRYPATH%.*}.xmlentry" "$f" # FIXME: -r is no POSIX
+f=src/"$date_iso"-"${sort:-0}".sortdata
+printf '%s\n' "$FILENAME" > "$f"
 printf '%s\n' "$f"
diff --git a/src/xmlentry b/src/xmlentry
deleted file mode 100755
index c2458d1..0000000
--- a/src/xmlentry
+++ /dev/null
@@ -1,48 +0,0 @@
-#!/bin/sh
-set -eu
-
-
-usage() {
-	echo 'Usage: xmlentry FILENAME'
-}
-
-FILENAME="${1:-}"
-eval "$(assert-arg -- "$FILENAME" 'FILENAME')"
-. "${FILENAME%.*}.conf"
-
-
-title_html=
-url_absolute=
-update_xml=
-cat <<EOF
-  <entry xml:lang="$lang">
-    <title type="html">
-      $title_html
-    </title>
-    <link type="text/html" rel="alternative" href="$url_absolute" title="$title_html" />
-    <published>
-      $date_iso
-    </published>
-$update_xml
-    <id>
-      $url_absolute
-    </id>
-    <author>
-      <name>
-        $author
-      </name>
-      <email>
-        $email
-      </email>
-    </author>
-
-    <summary type="html">
-EOF
-
-head -n1 < "${FILENAME%.*}.htmlbody" | htmlesc
-printf '    </summary>\n'
-printf '    <content type="html" xml:base="%s">\n' "${url:?}"
-
-htmlesc < "${FILENAME%.*}.htmlbody"
-printf '    </content>\n'
-printf '  </entry>\n'
-- 
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