Subj : RegExp Behaviour in FSE
To   : Angus McLeod
From : Deuce
Date : Thu Mar 02 2006 12:45 pm

  Re: RegExp Behaviour in FSE
  By: Angus McLeod to Deuce on Thu Mar 02 2006 12:54 am

 >  > The s flag wouldn't need any special handling at all since it merely expa
 >  > what . matches to include newlines.  So your example would work as you ex
 >  > with the m flag, and not match anything otherwise.  ie:
 >  >
 >  > $_="Two line\nParagraphs\n";
 >  > print "No flags\n" if(/^Para/);
 >  > print "m flag\n" if(/^Para/m);
 > 
 > Which seems to me to be intuitive.
 > 
 >  > Further, if it included soft CRs, that would be an extra bit of whitespac
 >  > where there "really" isnt.
 > 
 > Well, the separation between the last word on one line and the first word
 > on the next is in fact "whitespace".  Whether it is a space character or a
 > newline, it is still whitespace and matches \s.  So if you treated a soft
 > CR like a hard CR, you're doing the right thing, because (presumably) for
 > the auto-wordwrap to ahve kicked in, the user must have tyoed a space or
 > tab or something at that point in the input text.
 > 
 > To completely throw a spanner in the works:  Quoting.  How will you treat
 > something like
 > 
 >      > yada yada yada yada yada yada yada yada yada yada yada yada Dumb
 >      > User yada yada yada yada yada yada yada
 > 
 > when searching for /Dumb User/ or even /Dubm\s/User/m ?   ;-)

Well, I can't say it seems completely intuitive, since your example would
actually not have done what you said it would have.  :-)

As for adding a soft CR, the spaces are *still* at the end of the line... so if
soft CRs were expanded to hard, you'd need /Dumb\s+User/ reather than
/Dumb\sUser/ or /Dumb User/

As for quoting, I plan on using Deep Magic for it when possible.  Since this
editor is runnign inside of Synchronet, thanks to reply linking, there's a VERY
good chance that the editor can actually read from the original message itself
and requote to fit... ie: it could restore the missing data from this:

DE> AM> DE> AM> DE> AM> DE> AM> DE> The fix is simply to use the correct flags

To this:

x8> DE> The fix is simply to use the correcty flags in the regex... m or s as a

And possibly even rewrapping it to fit in the smaller width.

x8> DE> The fix is simply to use the correcty flags in the regex... m or s as
x8> DE> appropriate.

The quoting indicators wouldn't count as part of the string.

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