1 files changed, 99 insertions, 0 deletions
diff --git a/aux/commonmark.sh b/aux/commonmark.sh
new file mode 100755
index 0000000..7f56e53
--- /dev/null
+++ b/aux/commonmark.sh
@@ -0,0 +1,99 @@
+#!/bin/sh
+set -eu
+
+. tests/lib.sh
+
+
+usage() {
+	cat <<-'EOF'
+		Usage:
+		sh aux/commonmark.sh -N NAME_UC -t TITLE -l LANG [-H HEADER]
+		sh aux/commonmark.sh -h
+	EOF
+}
+
+help() {
+	cat <<-'EOF'
+
+
+		Options:
+		  -N NAME_UC    the UpperCase name of the project
+		  -t TITLE      the title of the page
+		  -l LANG       the language of this page
+		  -H HEADER     extra header content to be included as a file
+		  -h, --help    show this message
+
+
+		Consume CommonMark data from STDIN and emit HTML5 to STDOUT,
+		using NAME_UC, TITLE and LANG as metadata, and allowing extra
+		HTML to be injected via HEADER.
+
+
+		Examples:
+
+		  Generate `index.html` from `README.md`:
+
+		    $ sh aux/commonmark.sh -N MyProj -t Home -l en -H extra.html < README.md > index.html
+	EOF
+}
+
+
+for flag in "$@"; do
+	case "$flag" in
+		(--)
+			break
+			;;
+		(--help)
+			usage
+			help
+			exit
+			;;
+		(*)
+			;;
+	esac
+done
+
+while getopts 'N:t:l:H:h' flag; do
+	case "$flag" in
+		(N)
+			NAME_UC="$OPTARG"
+			;;
+		(t)
+			TITLE="$OPTARG"
+			;;
+		(l)
+			THE_LANG="$OPTARG"
+			;;
+		(H)
+			HEADER="$OPTARG"
+			;;
+		(h)
+			usage
+			help
+			exit
+			;;
+		(*)
+			usage >&2
+			exit 2
+			;;
+	esac
+done
+shift $((OPTIND - 1))
+
+eval "$(assert_arg "${NAME_UC:-}" '-N NAME_UC')"
+eval "$(assert_arg "${TITLE:-}"      '-t TITLE')"
+eval "$(assert_arg "${THE_LANG:-}"   '-l THE_LANG')"
+
+
+THE_TITLE="$NAME_UC | $TITLE"
+
+pandoc \
+	--toc                         \
+	--toc-depth=2                 \
+	-s                            \
+	--metadata title="$THE_TITLE" \
+	--metadata "lang=$THE_LANG"   \
+	-r commonmark                 \
+	-w html                       \
+	-H aux/favicon.html           \
+	${HEADER:+-H} ${HEADER:-}