Module lines 

Line preprocessing: docutils statemachine.string2lines(tab_width=8, convert_whitespace=True) equivalent, producing the parser’s line stream as index-based LineRec records over a processed source text.

Probe-verified semantics (docutils 0.22.4):

• \v / \f become single spaces (convert_whitespace).
• Lines split on \n, \r\n, \r (plus Python splitlines exotics: \x1c-\x1e, \u{85}, \u{2028}, \u{2029}).
• Tabs expand to the next multiple-of-8 column (character columns).
• Trailing whitespace stripped per line.
• One processed line == one source line, so message line numbers are processed index + 1.

Structs

LineRec

One line of the parser’s stream: (source, lineno) provenance plus the byte range of the line’s current (possibly dedented) view into the processed text of its source.

Lines

The processed form of one source: its lines joined with \n (the text every LineRec range indexes) plus the single-source record stream.