support for interleave=[yes/no] #20
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NCL supports
INTERLEAVEandNOINTERLEAVE, while many software (e.g., MrBayes, PAUP*, etc.) supportINTERLEAVE=YESandINTERLEAVE=NO(NCL halts processing and reports an error on this). NCL follows the original Nexus definition (Maddison et al., 1997), but since so many packages support both formats it seems reasonable that NCL should as well.This simple edit adds support for the latter to NCL (
NxsCharactersBlock::HandleFormat()).Note:
nxsdistancesblock.cppalso parses interleave statements (NxsDistancesBlock::HandleFormatCommand()), but does so in a different way (token.GetNextToken()rather than iterating through a tokenized vector). Presumably atoken.PeekNextToken()function could be added to mirror functionality above.