CODEWITHSUNDEEP
htmlpandocepub
user2737041
user2737041

Reputation:

How to change extracted images location in html document created with pandoc?

am using pandoc to convert epub files to html but am having trouble with certain epub books who use /images folder for images and or other media.

Example:

pandoc -s --extract-media=bw_files bw.epub -o bw.html -M document-css=false

would create an bw_files folder with extracted images folder in it but goal is to move them and change location for them in outputted html document to / so the image files are properly referenced.

Upvotes: 1

Views: 951

Answers (2)

tarleb
tarleb

Reputation: 22544

The images go into pandoc's "mediabag" during conversion. Their filenames can be modified there, as can the links to the images. The Lua filter below does just that; save the filter to a file, then pass that file to pandoc via --lua-filter.

local mediabag = require 'pandoc.mediabag'

-- Delete image files and re-insert under new name
for fp, mt, contents in mediabag.items() do
  mediabag.delete(fp)
  mediabag.insert(fp:gsub('images/', ''), mt, contents)
end

-- adjust path to image file
function Image (img)
  img.src = img.src:gsub('images/', '')
  return img
end

This is a copy of an answer which I gave on the pandoc mailing list.

Upvotes: 2

help-info.de
help-info.de

Reputation: 7260

The following call may help you:

pandoc -s --extract-media=. bw.epub -o bw.html -c my-style.css

Please note that the subfolder bw_files from your example will not be created. But the structure of the .epub file will be extracted. The result depends on the internal structure of the .epub file.

For further information please have a look at Wikipedia EPUB.

Upvotes: 2

Related Questions