Module expand 

Enums

TabStops

Tab stop specification

Functions

expand_bytes

Expand tabs to spaces using SIMD scanning. Uses memchr2 to find tabs and newlines, bulk-copying everything between them.

parse_tab_stops

Parse a tab specification string (e.g., “4”, “4,8,12”, “4 8 12”).

unexpand_bytes

Unexpand spaces to tabs. If all is true, convert all sequences of spaces; otherwise only leading spaces.