Function ftml::preprocess

pub fn preprocess(log: &Logger, text: &mut String)

Run the preprocessor on the given wikitext, which is modified in-place.

The following modifications are performed:

• Expand instances of [[include]]
• Replacing DOS and legacy Mac newlines
• Trimming whitespace lines
• Concatenating lines that end with backslashes
• Convert tabs to four spaces
• Wikidot typography transformations

This call always succeeds. The return value designates where issues occurred to allow programmatic determination of where things were not as expected.