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Article #10005

[noob] DTD

#10005
From: beherit
Date: Fri, 26 Sep 2008 14:52
23 lines
2047 bytes
Jestem swiezy z XMLa, a tym bardziej DTD :)
Mamy problem ze rodzic np. ksiazka ma od 1-3 autorow i tytul.
W DTD nie ma mozliwosci z tego co sie orientuje (w przeciwienstwie do
XML Schema) zapisu od do ilosci elementow.

Wydaje sie ze ksiazka majaca od 1 do 3 autorow i tytul moze byc
zapisana w taki sposob:
<!element ksiazka (autor, autor?, autor?, tytul)>

lub taki:
<!element ksiazka ((autor, ksiazka | autor, autor, ksiazka | autor,
autor, autor, ksiazka))>

czy obie te formy sa rownowazne? czy sa prawidlowe?

PS. Poprawcie mnie prosze jesli sie myle w DTD, _NIE_ ma mozliwosci
zapisania, ze atrybut jest liczba i ma 11 znakow - np. opcjonalny
PESEL do autora (co wstawic zamiast ???? zeby oznaczalo to w DTD 11
cyfr?:
<!ATTLIST autor PESEL ???? #IMPLIED>

pozdr,
p.
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From: beherit <beherit@firenet.eu.org>
Newsgroups: pl.comp.xml
Subject: [noob] DTD
Date: Fri, 26 Sep 2008 07:52:14 -0700 (PDT)
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