Called by the NxsReader object when a block named `blockName' is entered. Allows derived class overriding this function to notify user of progress in parsing the NEXUS file. Also gives program the opportunity to ask user if it is ok to purge data currently contained in this block. If user is asked whether existing data should be deleted, and the answer comes back no, then then the overrided function should return false, otherwise it should return true. This (base class) version always returns true. Reimplemented in DefaultErrorReportNxsReader. Definition at line 537 of file nxsreader.cpp. |