mdBook preprocessor that replaces straight quotes with curly quotes, except within code blocks or code spans.

It does the same as the curly-quotes option of the mdBook HTML renderer. The only advantage is that it can be applied to any renderer.

The following example configures mdbook-curly-quotes as a preprocessor for the epub renderer.

[book]
title = "Example book"
author = "John Doe"

# add the curly-quotes preprocessor
[preprocessor.curly-quotes]
# select renderers
renderer = ["epub"]

[output.epub]

More on configuring preprocessors can be found in the mdBook Documentation.