Hi Kevin just hints, no solution :-)
Am Montag, 25. April 2005 12.59 schrieb Kevin Horton: > I'm trying to write a perl one-liner that will edit an iCalendar > format file to remove To Do items. The file contains several > thousand lines, and I need to remove several multi-line blocks. The > blocks to remove start with a line "BEGIN:VTODO" (without the quotes) > and end with a line "END:VTODO" (also without quotes). > > I've tried the following one-liner, > > perl -p -i.bak -e 's/BEGIN:VTODO.*END:VTODO//sg' file_name_to_edit according to perldoc perlrun, -p reads _one_ line after the other, so you can't search for multiline patterns this way. > The .bak file is created, which tells me the one-liner is finding my > file, but the file is identical to the old one - i.e. the regex > doesn't seem to be matching anything. > > I'm also wondering whether my proposed one-liner (if it worked) would > be too greedy. yes or no, depends from the working implementation :-) > Would it pull out everything between the first > BEGIN:VTODO and the last END:VTODO? yes, if you try to match a string with the whole file in it with the regex above. > > I'd appreciate any hints. > > Thanks, > > Kevin Horton -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
