Got it to correctly parse multi-realm lines. Fixed a bug in multi- line realms. Blank lines and comments should work completely, now. Attribute parsing now looks for an EOLN, where appropriate. Syntax elements can span multiple lines, now.
Strings can have characters escaped.
Globalized line parsers for lbrace, rbrace and blank lines. Put in new callback-based error reporting infrastructure. Doesn't link, as yet, due to necessary interface changes. Removed callbacks from error reporting. Making GUCS self-generate.