BLANK_NODE_LABEL top-level property
141s
BLANK_NODE_LABEL ::= '_:' (PN_CHARS_U | 0-9
) ((PN_CHARS | '.')* PN_CHARS)?
Implementation
final BLANK_NODE_LABEL = string('_:') &
(PN_CHARS_U | pattern('0-9')) &
((PN_CHARS | string('.')).starGreedy(PN_CHARS) & PN_CHARS).repeat(0, 1);