> -----Original Message----- > From: Electron One [mailto:[EMAIL PROTECTED] > Sent: Monday, March 10, 2003 12:12 PM > To: [EMAIL PROTECTED] > Cc: Electron One > Subject: Another Regular expression problem > > > Hello Everyone, > > I have a perl file that has this, > > ########################PerlFile.pl########################### > ################################ > #!/usr/bin/perl > > > > while(<>){ > chomp; > if(/\s*\$[a-z]\w+\s*/i){ > # if(/\b\$[a-z]\w+\b/i){ > print "Matched: $` -- $& -- $' :\n"; > } > > > else{ > print "No match:$_\n"; > } > > } > ############################################################## > ################################## > > I have another file that has this in it, > > ############################testfile.txt###################### > ##################################### > $he1lo is the name of a variable > what is not allowed $0 is this > but this is $a123wgfd343w cool > this is correct though $hello dont know why didnt work > before. I sure hope this doesnt pass alf$f12w32 cuz it > shouldnt $alfonso does match though $hello > ############################################################## > ############################ > > The perl code is basically supposed to look for real possible scalar > variable names. So there should only be two failures, > the second and fifth line should not pass. > > Now, if I run the program how it is, I get this, > > ############################answer1.txt####################### > ########################## > > Matched: -- $he1lo -- is the name of a variable : > No match:what is not allowed $0 is this > Matched: but this is -- $a123wgfd343w -- cool : > Matched: this is correct though -- $hello -- dont know why > didnt work > before. : > Matched: I sure hope this doesnt pass alf -- $f12w32 -- cuz > it shouldnt : > Matched: -- $alfonso -- does match though : > Matched: -- $hello -- : > No match: > ############################################################## > ############################ > if i run it with the commented section as the if statement, > and the current > if statement commented out, i get this, > > ###############################answer2.txt#################### > ############################## > No match:$he1lo is the name of a variable > No match:what is not allowed $0 is this > No match:but this is $a123wgfd343w cool > No match:this is correct though $hello dont know why didnt > work before. > Matched: I sure hope this doesnt pass alf -- $f12w32 -- cuz > it shouldnt : No match:$alfonso does match though No > match:$hello No match: > ############################################################## > ############################# > > With regard to answer2.txt, why doesn't it match lines > 1,3,4,5 and 6? In > the camel book(pg40), it says that the word bound \b matches > the beginning > of lines. > > Any advice would be appreciated. > > Thanks. >
Beats me...I can't wait to find out the answer to this one. $Bill, explain it to us idiots... _______________________________________________ Perl-Win32-Users mailing list [EMAIL PROTECTED] To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs
