Use Pandoc instead of txt2tags binary, much more configurable

bin/update_html

@@ -3,38 +3,29 @@
 ### This script finds all .t2t (txt2tags) files and updates the corresponding
 ### .html file, if it is out-of-date.
 
-config=".txt2tagsrc"
-pre="_pre.html"
-post="_post.html"
-tmp="tmp.html"
+# Path to this directory (not CWD)
+# https://stackoverflow.com/a/246128/98600
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
 
 find . -name '*.t2t' | while read t2t ; do
   html="${t2t%.t2t}.html"
   if [ "$t2t" -nt "$html" ] ; then
-    txt2tags --config-file="$config" --target=html "$t2t"
-    cat $pre $html $post > $tmp
-    mv $tmp $html
-    head1=$(head -n 1 "$t2t")
-    head2=$(tail -n+2 "$t2t" | head -n 1)
-    head3=$(tail -n+3 "$t2t" | head -n 1)
-
-    # Replace "headers" from t2t in final HTML
-    # Documentation here: https://txt2tags.org/userguide/headerarea
-    if [ -n "$head1" ] ; then
-      sed -i.bak "s/{{HEAD1}}/$head1/" "$html" && rm "$html.bak"
+    echo "$t2t"
+    relroot="$( dirname $t2t | sed -E 's/^.\///' | sed -E 's/[^/]+/../g' )"
+    pandoc \
+      --from=t2t \
+      --to=html5 \
+      --standalone \
+      --template="$DIR/_template.html" \
+      --css="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" \
+      --variable="rel-root:$relroot" \
+      "$t2t" \
+      --output="$html"
+    if [ -f "$html" ]; then
+      sed -i.bak "s/<table>/<table class=\"table\">/" "$html" && rm "$html.bak"
+      sed -i.bak -E "s/\`\`(.+)\`\`/<code>\1<\/code>/g" "$html" && rm "$html.bak"
     else
-      sed -i.bak -E "s/<.+{{HEAD1}}.+>//" "$html" && rm "$html.bak"
-      continue # empty headers
-    fi
-    if [ -n "$head2" ] ; then
-      sed -i.bak "s/{{HEAD2}}/$head2/" "$html" && rm "$html.bak"
-    else
-      sed -i.bak -E "s/<.+{{HEAD2}}.+>//" "$html" && rm "$html.bak"
-    fi
-    if [ -n "$head3" ] ; then
-      sed -i.bak "s/{{HEAD3}}/$head3/" "$html" && rm "$html.bak"
-    else
-      sed -i.bak -E "s/<.+{{HEAD3}}.+>//" "$html" && rm "$html.bak"
+      echo "Error creating $html"
     fi
   fi
 done