batch modify a CSS property?

[roger64]

Hi

Is it possible to modify the value of one CSS property in a batch of EPUBs?

Say, I wish to write: vertical-align: text-top instead of vertical-align: top?

[KevinH]

Yes using a stream editor such as "sed" and scripts to unzip, find css files, pass them to sed, to fix the files, and then rezip and continue on to the next.

[elibrarian]

PowerGREP could do it (it can search and replace inside zip-files, and thats how it sees epubs).

It has a relatively steep price and an equally steep learning curve, but if it's a one-off there's a trial version, which should be enough.

Regards,

Kim

[roger64]

Thanks for your replies.

[roger64]

Hi

This is a first working result made by a friend of mine which could be improved. Up to now, it processes only EPUB where the CSS file is in : OPS/style.css. It has to be adapted on this regard.

Spoiler:

#!/bin/bash
for fichier in *.epub
do
    unzip $fichier OPS/style.css
    if [ -d ./OPS ]; then
        cd OPS
        find . -type f -iname "style.css" -exec sed -i -e "s/vertical-align:top/vertical-align:text-top/g" {} \;
        cd ..
        zip -r $fichier ./OPS
        rm -rf ./OPS
    fi
done