LAZY_INCOMPLETE_CASE_INSENSITIVE

A map from lower-case strings to successor message bundle trees. During parsing, if the next token, following conversion to lower case, is a key of this map then consume that token, look it up in this map, and continue parsing with the corresponding message bundle tree. Otherwise record a suitable parsing failure message for this position in the source stream, in case this ends up being the rightmost parse position to be reached.

Message bundles only get added to this map if their current instruction is the ParsingOperation.PARSE_PART_CASE_INSENSITIVELY instruction. There may be other instructions current for other message bundles, but they will be represented in the LAZY_ACTIONS map, or the LAZY_PREFILTER_MAP if their instruction is a ParsingOperation.CHECK_ARGUMENT.