pub fn parse_macros(input: &str) -> HashMap<String, String>Expand description
Split a seq macro string into definitions.
Through macro_defn_pairs, the port’s owner of C’s macParseDefns
grammar (macUtil.c), so a quoted value with an embedded comma survives —
a raw split(',') tears it. A name given with no = is a deletion in
that grammar and is dropped here, since a program can only be started with
definitions.