pub fn parse_seed(src: &str) -> Vec<(char, Decomp)>Expand description
Parse a seed-format TSV string into (char, Decomp) pairs.
Format: each non-blank, non-# line is <char>\t<zigen>\t<strokes>\t<shape>,
where zigen is whitespace-separated 字根, strokes is whitespace-
separated digits 1..=5, and shape is one of 1..=3. Malformed lines are
silently skipped (consistent with the build-time parser in build.rs).