Front page | perl.perl5.porters |
Postings from October 1999
On Wed, 27 Oct 1999 03:06:54 EDT, Ilya Zakharevich wrote: >To facilitate complicated data extraction, the following extensions >are allowed inside embedded templates: Sounds like the key word there is "complicated". > *) Template of '/' is equivalent to 't/t'. [This makes it possible > to extract more or less arbitrary data with a TEMPLATE of 't'.] > > Example of usage: you want the receiving end to obtain > qw(a bc def ghij) > but the receiving end does not know what data is there: you > want the receiver look like > > @out = unpack 't', $string; > > This data may be unpacked as > > unpack 'A1 A2 A3 A4', 'abcdefghij'; # Now do transformations: > unpack 't11', 'A1 A2 A3 A4abcdefghij'; > unpack 't2/t', 'A211A1 A2 A3 A4abcdefghij'; > unpack 't4', 't2/tA211A1 A2 A3 A4abcdefghij'; > unpack 't/t', 'A4t2/tA211A1 A2 A3 A4abcdefghij'; > unpack 't', '/A4t2/tA211A1 A2 A3 A4abcdefghij'; > > It is not simple for manual coding, but as you can see, this > simple extension allows us to achieve our target. Thanks for throwing up the idea, but are you single-handedly trying to start a back-to-the-assembler-years movement among the Perl rank and file? I'm missing the entire point of all this. Perhaps some examples of real-world use will help, but I honestly doubt it. :-) Sarathy gsar@ActiveState.comThread Previous | Thread Next