This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Hello YangXin, > Following your hints on the creation of a reagular expression, I can save the > receiving DONDUIT products into files now, one thing I am still not sure > about is where I should use <tab> and where I should put a <space>. Is it a > rule of "regular expression" or a rule of the LDM? The syntax for entries in the "pqact" configuration-file is specified at <http://www.unidata.ucar.edu/software/ldm/ldm-current/basics/pqact.conf.html>. Basically, a <tab> character or a <newline> character followed by a <tab> character must follow the feedtype (e.g. CONDUIT), pattern (e.g., ".*"), and action (e.g., FILE) fields. After the action field, you may use either tab characters or space characters. So, for example, your entry can be CONDUIT<tab>(2007)(.*)<space>.* <tab>FILE<tab>-close<tab-or-space>-overwrite<tab-or-space>data/tigge_test/conduit/\1\2 Because it's difficult to remember where spaces are allowed, I recommend always using tab characters unless you truly want to specify a space (as you did in the regular-expression field). Regards, Steve Emmerson Ticket Details =================== Ticket ID: BGR-338705 Department: Support IDD TIGGE Priority: Critical Status: Open