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#!/bin/bash
# 2020-11-21
# gem2html.sh file.gmi > file.html
filename="${1}"
title="${filename##*/}"
addr_pub="your-onion-site-hash-here.onion"
cat <<EOF
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>${title}</title>
</head>
<body>
EOF
OLDIFS=$IFS
IFS='' # preserve (leading!) white space, e.g. in <pre>...</pre>
in_list=0
in_pre=0
( cat ${filename} && echo "") |
while read line
do
if [ $in_list -eq 1 ]
then
case "${line}" in
(\**)
in_list=1
text=$(echo "$line" | sed -e 's/^[*][ ]*//')
echo " <li>${text}</li>"
;;
(*)
in_list=0 # fall through into next case!
echo " </ul>"
esac
elif [ $in_pre -eq 1 ]
then
case "${line}" in
(\`\`\`*)
echo " </pre>"
in_pre=0
continue
;;
(*)
# emacs/eww chokes on '<>' in pre section?
text=$(echo "$line" | sed -e 's/</\</g' -e 's/>/\>/g')
echo "$text"
;;
esac
fi
if [[ $in_list -eq 0 && $in_pre -eq 0 ]]
then
case "${line}" in
(\#[^#]*)
text=$(echo "$line" | sed -e 's/^#[ ]*//')
echo " <h1>${text}</h1>"
;;
(\#\#[^#]*)
text=$(echo "$line" | sed -e 's/^##[ ]*//')
echo " <h2>${text}</h2>"
;;
(\#\#\#[^#]*)
text=$(echo "$line" | sed -e 's/^###[ ]*//')
echo " <h3>${text}</h3>"
;;
(\=\>*)
text=$(echo "$line" | sed -e 's/^=>[ ]*//')
link=$(echo "$text" | cut -d' ' -f1)
desc=$(echo "$text" | cut -d' ' -f2- | sed -e 's|^[ ]*||')
# rewrite site internal links
case "${link}" in
(/*\.gmi)
link=$( echo "${link}" | sed -e 's|\.gmi$|.html|' )
;;
(*) :
;;
esac
echo " <p><a href=\"${link}\">${desc}</a></p>"
;;
(\>*)
text=$(echo "$line" | sed -e 's/^>[ ]*//')
echo " <blockquote><p>${text}</p></blockquote>"
;;
(\**)
in_list=1
text=$(echo "$line" | sed -e 's/^[*][ ]*//')
echo " <ul>"
echo " <li>${text}</li>"
;;
(\`\`\`*)
in_pre=1
echo " <pre>"
;;
(*) :
echo " <p>${line}</p>"
;;
esac
fi
done
cat <<EOF
</body>
</html>
EOF
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