January 2008
Beginner to intermediate
160 pages
2h 39m
Polish
Content preview from Wyra?enia regularne. Leksykon kieszonkowy. Wydanie IIBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Rozdział 2. Przepisy na wyrażenia regularne
W tej części rozdziału zamieszczone zostały proste przykłady wzorców wyrażeń regularnych. Być może konieczne będzie wprowadzenie w nich pewnych modyfikacji, by dostosować je do konkretnych potrzeb.
Wraz z każdym wyrażeniem prezentowane są także łańcuchy znaków, które do niego pasują, oraz takie, które nie pasują. Dzięki temu Czytelnikowi łatwiej będzie określić, jakie zmiany należy wprowadzić w wyrażeniu, by dostosować je do własnych potrzeb.
Wyrażenia są zapisane w sposób charakterystyczny dla języka Perl:
/wzorzec/tryb s/wzorzec/zamiennik/tryb
Przepisy
Usuwanie odstępów na początku i końcu łańcucha
s/^\s+// s/\s+$//
Pasuje do: "bar kod", "bar"
Nie pasuje do: "bar kod"
Numery od 0 do 999999
/^\d{1,6}$/Pasuje ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.