Function ftml::prefilter

pub fn prefilter(text: &mut String, handle: &dyn RemoteHandle) -> Result<()>

Transform the text in preparation for parsing.

Performs the following modifications:

• Insert [[include]] directives
• Replacing DOS and legacy Mac newlines
• Trimming whitespace lines
• Concatenating lines that end with backslashes
• Convert tabs to four spaces
• Compress groups of 3+ newlines into 2 newlines
• Converts quote blocks to nested [[quote]] tags
• Perform typography modifications