Revision history for Equinox-Migration 2009-06-10 MXS 1.002 * Instead of stowing empty values and ignoring all others, the first "real" subfield value will now be used in detail samples 2009-05-29 MXS 1.001 * Subfield length tracking implemented 2009-05-27 MDMP 1.001 * The multi hash no longer uses tag+code for keys. Just code (e.g. '999a' is now just 'a') 2009-05-07 MDMP 1.000 & MXS 1.000 2009-04-30 SM 1.004 * single-chunk tokens being quoted is ok now * misc other fixes 2009-04-27 SM 1.003 * mods now returns *all* mods with no argument 2009-04-27 STL 1.001 * generate now takes 2 arguments: a filename or string, and any true value if the first argument is a string, to indicate that fact 2009-04-25 SM 1.002 * mods should return undef when there are no *mods* as well as when there is no mapping *at all* * mods returns a hashref 2009-04-14 SM 1.001 * added tags, subfields methods 2009-03-17 1.000 First version, E::M::STL