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Answer: Double quotes within double quotes

by little_mistress (Monk)
on Apr 05, 2000 at 02:40 UTC ( #6895=categorized answer: print w/replies, xml ) Need Help??

Q&A > regular expressions > How can I find nested delimiters? - Answer contributed by little_mistress

I'm starting to get a little timid about posting on this site but im going to anyway
here goes

One thing to remeber about regular expressions in perl are that the charactors "*" and "+" are "greedy". In other words they will gobble up all the charactors they possibly can befor they fail. Hence the "*?" and "+?" constructions that make them "non-greedy" or rather they stop gobbling up charactors as soon as they make a match. so here is where greedy regular expressions come in handy

$text = "QUERY = \"SOME QUERY WITH \"\" (DOUBLE QUOTES)\" YEEHA"; $text =~ m/^(.*)"+\s(\w+)$/g; print "dollar one =$1\n\ndollar two = $2\n\n"; # $1 == QUERY = "SOME QUERY WITH "" (DOUBLE QUOTES) # $2 == YEEHA

Hope that helped

Just for fun try it like this and see what you get"

$text =~ m/^(.*)?"+\s(\w+)?$/g;

little_mistress@mainhall.com

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[Corion]: erix: I'm not sure if it really is MySQL - maybe MS SQL also has LIMIT 0
[erix]: it has TOP, IIRC
[Corion]: erix: Ah. I use where 1 = 0 for queries where I only am interested in the structure ;)
[erix]: 1=0 is as short as TOP :)
[erix]: "code of someone that died" -- kinda nice if your code stops working too
[erix]: hard to implement, hmm
[Corion]: erix: Well, they also seem to have changed the server, or some software, or whatever, and seem to be in the process of changing the DB schema from having the "username" as primary key to something else.

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