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Jiří P. avatar 10.4.2007 09:40 Jiří P. | skóre: 24 | blog: programování
Rozbalit Rozbalit vše Re: Standardní knihovna pro Python - 8 (regulární výrazy 1)
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Pro skládání reg. výrazů a jejich odladění se mi velice osvědčil prográmek kodos.
In a world without fences and walls, who needs Gates and Windows?
10.4.2007 10:17 happy barney | skóre: 34 | blog: dont_worry_be_happy
Rozbalit Rozbalit vše Re: Standardní knihovna pro Python - 8 (regulární výrazy 1)
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re.match(r"(19|20)[0-9]{2}", retezec)
 # vyhleda letopocet mezi roky 1900 a 2050
hmm, možno tak v pythone :-)) Všade inde by bolo treba opraviť buď prvý riadok
m/(?:19\d{2})|(?:20[0-4]\d)|2050/
alebo druhý riadok
 # vyhleda letopocet mezi roky 1900 a 2099 (vrátane)
10.4.2007 14:26 Jakub Matys
Rozbalit Rozbalit vše Re: Standardní knihovna pro Python - 8 (regulární výrazy 1)
Omlouvam se - chybicka se vloudila. V komentari melo opravdu byt 1900 az 2099.
10.4.2007 14:38 happy barney | skóre: 34 | blog: dont_worry_be_happy
Rozbalit Rozbalit vše Re: Standardní knihovna pro Python - 8 (regulární výrazy 1)
btw, aj tie hexa čísla sú nejaký zvláštny regexp. Autor mohol predviesť ignore-case match :-)
m/^(?:0|(?!0)[0-9a-f]+)$/i
mj41 avatar 10.4.2007 18:13 mj41 | skóre: 17 | blog: mj41 | Brno
Rozbalit Rozbalit vše Re: Standardní knihovna pro Python - 8 (regulární výrazy 1)
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Jak se da v Pythonu jednoduse udelat Perlovske:

die "Zadany retezec neobsahuje letopocet od 1900 do 2099.\n" if $retezec !~ /(19|20)[0-9]{2}/;

?
10.4.2007 20:26 Jan Martinek | skóre: 43 | blog: johny | Brno
Rozbalit Rozbalit vše Re: Standardní knihovna pro Python - 8 (regulární výrazy 1)
třeba takhle
#!/usr/bin/env python
import re
year_str = '1801d'
if not re.match('(19|20)[0-9]{2}', year_str):
    raise SystemExit, 'Chyba formatu letopoctu'
nebo takhle
year_str = '1801d'
try:
    rok = int(year_str)    
except ValueError:
    raise SystemExit, '"%s" nelze prevest na cislo.' %year_str

if rok < 1900 or rok > 2099:
    raise SystemExit, 'Rok %d je mimo interval 1900 a 2099.' %rok
11.4.2007 13:37 Michal Vyskočil | skóre: 60 | blog: miblog | Praha
Rozbalit Rozbalit vše Re: Standardní knihovna pro Python - 8 (regulární výrazy 1)
Afaik volání die prostě ukončí interpreter Perlu, takže v Pythonu by tomu odpovídalo exit. Výjimka se dá pomocí except zachytit a zpracovat ... <rejp>
Při vyvolávání výjimky si typicky objekt reprezentující výjimku vytvářím -- doporučuje se zápis vyjadřující konstrukci nového objektu ;-)
py.cz
</rejp>
When your hammer is C++, everything begins to look like a thumb.
10.12.2021 12:03 ahmedsayeed1982
Rozbalit Rozbalit vše Re: Standardní knihovna pro Python - 8 (regulární výrazy 1)
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Although Nvidia has not yet officially announced the 12 GB RTX 2060 Super graphics card, the phrase in the PDF gives a certainty to the graphics card. Normally, RTX 2060 super graphics cards Super models have 8 GB of VRAM, and this new 12 GB model will be able to offer wider usage areas. The price and availability of the new graphics card are not yet known. It is also unknown whether Nvidia is planning a launch for the card. It is thought that Nvidia deliberately made this leak to prepare the market for the new graphics card. The price graphics cards 2021 and availability of the new graphics card are not yet known. It is also unknown whether Nvidia is planning a launch for the card. It is thought that Nvidia deliberately made this leak to prepare the market for the new graphics card.

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