Huh? It might be slightly wordy, but otherwise very simple and easy for both people and computers to read. Even a primitive editor with primitive highlighting can make the syntax painless.
I never used Zig, but used many other languages, and that looks better than most which don't have line prefix like \\: in languages that don't need it there is confusion about significance of whitespace in the beginning of 2nd+ lines.
Yep, that's precisely what that sintax solves, and also makes it easier to build a grammar for it (think of editor syntax highlighting for example) because the multiline marker is repeated in every line, instead of being a contextual marker. This is the same reason why Zig doesn't have dedicated multiline comment syntax.
