prev='' next='' idoff=0
depth=0 ucdepth=-1
+_base64() {
+ # busybox does not ship base64, only uuencode. Other platforms might need base64 instead
+ if which uuencode >/dev/null; then
+ uuencode -m - <"$1" \
+ | sed '1d; :X;$!{N;bX;}; s;\n;;g; s;=\+;;g;'
+ elif which busybox >/dev/null; then
+ busybox uuencode -m - <"$1" \
+ | sed '1d; :X;$!{N;bX;}; s;\n;;g; s;=\+;;g;'
+ else
+ base64 <"$1" \
+ | sed ':X;$!{N;bX;}; s;\n;;g; s;=\+;;g;'
+ fi
+}
+
{ "${0%/*}"/cgilite/html-sh.sed || cat; } \
| {
- line="$(line)"
+ read -r line
while :; do
tag="${tag}${line%%>*}"
if [ "$line" = "${line%%>*}" ]; then
# $line did not contain ">" and thus was added to $tag entirely
- if ! line="$(line)"; then
+ if ! read -r line; then
printf %s\\n "$tag"
break
fi
"
else
# $line is shortened by segment added to $tag
- line="${line#*>}"
+ read -r line
tag="${tag}>"
fi
-
+
+ ### Image embedding for Inline styles
+ while expr "$tag" : '.*<[^>]*style="[^"]*url("\?[^)]\+\.\(png\|jpg\|jpeg\|gif\|svg\)"\?)'; do
+ pre="${tag%%url(*)*}"
+ post="${tag#*url(*)}"
+ file="${tag#${pre}url(}" file="${file%)$post}"
+ file="${file#\"}" file="${file%\"}"
+ echo Inlining Background Image "$file" >&2
+ if [ -r "$file" ]; then
+ tag="${pre}url('data:image/${file##*.};base64,$(_base64 "$file")')${post}"
+ fi
+ done >/dev/null
+
+ ### Image embedding for Image tags
+ while expr "$tag" : '.*<img [^>]*src="[^"]\+\.\(png\|jpg\|jpeg\|gif\|svg\)"'; do
+ pre="${tag%%src=\"*\"*}"
+ post="${tag#*src=\"*\"}"
+ file="${tag#${pre}src=\"}" file="${file%\"$post}"
+ echo Inlining Image "$file" >&2
+ if [ -r "$file" ]; then
+ tag="${pre}src=\"data:image/${file##*.};base64,$(_base64 "${file}")\"${post}"
+ fi
+ done >/dev/null
+
+ ### Tag Processing
case $tag in
- *\<head\>*|\*\<head\ *\>)
+ *\<head\>*|\*\<head\ *\>) # Inline styles into head
printf '%s<meta name="viewport" content="width=device-width">
+ <meta charset="UTF-8">
<style type="text/css"><!--\n' "${tag%${tag#*<head*>}}"
cat "${0%/*}/clickslide.css"
printf '\n--></style>%s' "${tag#*<head*>}"
tag='' depth=$((depth + 1))
;;
- *\<slide\ *id=\"?*\"*\>*)
+ *\<slide\ *id=\"?*\"*\>*) # Count slide id, insert "next" button
prev="$next"
next="${tag#*<slide }" next="${next#*id=\"}" next="${next%\"*}"
next="autoslide${idoff}"
"${tag%<slide*}" "$next" "$idoff" "$next" "${tag#*<slide}"
tag='' depth=$((depth + 1))
;;
- *\</slide\>*)
+ *\</slide\>*) # Insert "previous" button
printf '%s</div><a class="prevslide" href="#%s">previous</a>%s' \
"${tag%</slide>*}" "$prev" "${tag#*</slide>}"
tag='' depth=$((depth - 1))
;;
- *\<*class=\"uncover\"*\>*)
- #printf '%s<li></li>' "$tag"
- printf '%s' "$tag"
- tag='' depth=$((depth + 1))
- ucdepth=$depth
- ;;
- *\<body*\>*)
+ *\<body*\>*) # Insert toplevel link
printf '%s<a href="#" class="toplevel">overview</a>' "$tag"
tag='' depth=$((depth + 1))
;;
- *\</body*\>*)
+ *\</body*\>*) # Insert total slide count
printf '<span class="count">%i</span>%s' "$idoff" "$tag"
tag='' depth=$((depth - 1))
;;
+ *\<*class=\"uncover\"*\>*) # Insert checkboxes in "uncover" lists
+ #printf '%s<li></li>' "$tag"
+ printf '%s' "$tag"
+ tag='' depth=$((depth + 1))
+ ucdepth=$depth
+ ;;
*\</*\>*)
printf %s "$tag"
tag='' depth=$((depth - 1))