CGI/Perl Guide | Learning Center | Forums | Advertise | Login Site Search: in Perl Guide PerlGuru Forums Learning Ctr

	MAIN INDEX	SEARCH POSTS	WHO'S ONLINE	LOG IN

Home: Perl Programming Help: Beginner: Getting values in the middle of the line

Zisu Novice Jul 17, 2002, 11:13 PM Post #1 of 14 (6512 views) Getting values in the middle of the line Can't Post The problem: I have directory names, that I should use to make html documentations (a lot of dirs). All dirs have similar construct: MSB-BLA_BLA_BLA-at-DATE_TIME-set(id)_(value)_(index) where the one marked in (id) can be 0 or 5 or 2U and other two () are numbers (\D+). I want to get the first one to a variable and two last values as numbers (so i can use them as index in arrays) into variables, how do I manage this? - Just another beginner -

Jean User Jul 18, 2002, 12:14 AM Post #2 of 14 (6510 views) Re: [Zisu] Getting values in the middle of the line [In reply to] Can't Post Try this: [perl]my ($res1, $idx1, $idx2); ($res1, $idx1, $idx2) = $str =~ /MSB-.+?-at-.+?-set(\([025][Uu]?\))_(\(\d+\))_(\(\d+\))/; print "$res1 -- $idx1 -- $idx2\n"; [/perl] Jean Spector SQA Engineer @ Exanet jean.spector@softhome.net There are only 10 types of people in the world - Those who understand binary, and those who don't. (This post was edited by Jean on Jul 18, 2002, 12:15 AM)

Paul Enthusiast Jul 22, 2002, 3:31 AM Post #3 of 14 (6498 views) Re: [Jean] Getting values in the middle of the line [In reply to] Can't Post You could change .+? to \w+ which would be a little nicer and more accurate. (This post was edited by RedRum on Jul 22, 2002, 3:32 AM)

Jean User Jul 22, 2002, 3:43 AM Post #4 of 14 (6493 views) Re: [RedRum] Getting values in the middle of the line [In reply to] Can't Post It depends on the contents of the BLA_BLA Dir names could include something other than \w+... Jean Spector SQA Engineer @ Exanet jean.spector@softhome.net There are only 10 types of people in the world - Those who understand binary, and those who don't. (This post was edited by Jean on Jul 22, 2002, 3:44 AM)

Paul Enthusiast Jul 22, 2002, 3:58 AM Post #5 of 14 (6490 views) Re: [Jean] Getting values in the middle of the line [In reply to] Can't Post Oops yeah sorry, I took BLAH_BLAH and DATE_TIME as literal

Jean User Jul 22, 2002, 4:07 AM Post #6 of 14 (6488 views) Re: [RedRum] Getting values in the middle of the line [In reply to] Can't Post I guess it's all right - IMHO for thousands of helpful posts you can miss something that wasn't very obvious Jean Spector SQA Engineer @ Exanet jean.spector@softhome.net There are only 10 types of people in the world - Those who understand binary, and those who don't.

Zisu Novice Jul 23, 2002, 7:57 AM Post #7 of 14 (6481 views) Re: [Jean] Getting values in the middle of the line [In reply to] Can't Post Got it to work. Thank you for the help - Just another beginner -

Jean User Jul 23, 2002, 8:12 AM Post #8 of 14 (6480 views) Re: [Zisu] Getting values in the middle of the line [In reply to] Can't Post Anytime Jean Spector SQA Engineer @ Exanet jean.spector@softhome.net There are only 10 types of people in the world - Those who understand binary, and those who don't.

Zisu Novice Jul 25, 2002, 2:22 AM Post #9 of 14 (6474 views) Re: [Jean] Getting values in the middle of the line [In reply to] Can't Post I want to change line: <A HREF="./link.html" TARGET=_top>Thursday, July 11, 2002, 09:27:57</A> and +.? doesnt work as I expected. $header = $linea =~ s/>.+?</>Something else</; How would you change the line to be: <A HREF="./link.html" TARGET=_top>Something else</A> ? - Just another beginner -

Jean User Jul 25, 2002, 3:08 AM Post #10 of 14 (6472 views) Re: [Zisu] Getting values in the middle of the line [In reply to] Can't Post Actually you code works fine - you've just added redundant variable... $linea =~ s/>.+?</>Something else</; should work fine (with updated contents stored in the $linea) Moreover - in your case you can even omit the ? in the regular expression: $linea =~ s/>.+</>Something else</; The ? is importany only if you have more than one < in your string... Jean Spector SQA Engineer @ Exanet jean.spector@softhome.net There are only 10 types of people in the world - Those who understand binary, and those who don't. (This post was edited by Jean on Jul 25, 2002, 3:12 AM)

Paul Enthusiast Jul 25, 2002, 3:11 AM Post #11 of 14 (6469 views) Re: [Jean] Getting values in the middle of the line [In reply to] Can't Post >> .+? << I believe: [^<]+ ...would be quicker as it doesn't have to read ahead.

Jean User Jul 25, 2002, 3:18 AM Post #12 of 14 (6467 views) Re: [RedRum] Getting values in the middle of the line [In reply to] Can't Post As long as performance is an issue - and it usually is , the [^<] is definitely a better choice here Jean Spector SQA Engineer @ Exanet jean.spector@softhome.net There are only 10 types of people in the world - Those who understand binary, and those who don't.

Zisu Novice Jul 25, 2002, 3:51 AM Post #13 of 14 (6464 views) Re: [Jean] Getting values in the middle of the line [In reply to] Can't Post Im working outside from web. I simulate (at work) with a tool that can generate crappy webpages (tens of folders with tens of files in them per simulation). Im working on a script that would correct them. So the speed isnt the essence. Nevertheless: I dont understand the use of [^<]+ Can someone put it to right place of the code and explain a bit? - Just another beginner -

Jean User Jul 25, 2002, 4:05 AM Post #14 of 14 (6461 views) Re: [Zisu] Getting values in the middle of the line [In reply to] Can't Post Additiona warning - not a professional explanation [ ] - is a block that may include any number of characters and may be substituted for one character in the match e.g. as /abc.efg/ matches 'abcdefg', so /abc[dV]efg/ matches 'abcdefg' and 'abcVefg' ^ - in case it appears as the first character inside [] means the opposite e.g. /abc[^V]efg/ matches 'abcdefg' and any other 'abc.efg' except 'abcVefg' Thus, [^<]+ will match all the charactes until it meets the <... Hope it's not too misleading In general, both solutions will work for you - it's just better to know your options Jean Spector SQA Engineer @ Exanet jean.spector@softhome.net There are only 10 types of people in the world - Those who understand binary, and those who don't. (This post was edited by Jean on Jul 25, 2002, 4:06 AM)

Announcements     PerlGuru Announcements Perl Programming Help     Frequently Asked Questions     Beginner     Intermediate     Advanced     Regular Expressions     mod_perl     DBI     Win32 Programming Help Fun With Perl     Perl Quizzes - Learn Perl the Fun Way     Perl Golf     Perl Poetry Need a Custom or Prewritten Perl Program?     I need a program that...     I Need a Programmer for Freelance Work     Throw Down The Gauntlet General Discussions     General Questions     Feedback     Tutorial/Article Suggestions for The Learning Cent     Internet Security Other Programming Languages     Javascript     PHP

Search this forum this category all forums for All words Any words Whole Phrase (options)

Powered by Gossamer Forum v.1.2.0

Web Applications & Managed Hosting Powered by Gossamer Threads
Visit our Mailing List Archives