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| -rw-r--r-- | xml.html.markdown | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/xml.html.markdown b/xml.html.markdown index b4b54330..2a258d94 100644 --- a/xml.html.markdown +++ b/xml.html.markdown @@ -100,8 +100,9 @@ This is what makes XML versatile. It is human readable too. The following docume A XML document is *well-formed* if it is syntactically correct. However, it is possible to add more constraints to the document, using Document Type Definitions (DTDs). A document whose elements are attributes are declared in a DTD and which follows the grammar specified in that DTD is called *valid* with respect to that DTD, in addition to being well-formed. +Declaring a DTD externally: + ```xml -<!-- Declaring a DTD externally: --> <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE bookstore SYSTEM "Bookstore.dtd"> <!-- Declares that bookstore is our root element and 'Bookstore.dtd' is the path @@ -114,8 +115,11 @@ A XML document is *well-formed* if it is syntactically correct. However, it is p <price>30.00</price> </book> </bookstore> +``` -<!-- The DTD file: --> +The DTD file (Bookstore.dtd): + +``` <!ELEMENT bookstore (book+)> <!-- The bookstore element may contain one or more child book elements. --> <!ELEMENT book (title, price)> @@ -128,10 +132,11 @@ A XML document is *well-formed* if it is syntactically correct. However, it is p only contain text which is read by the parser and must not contain children. Compare with CDATA, or character data. --> <!ELEMENT price (#PCDATA)> -]> +``` -<!-- The DTD could be declared inside the XML file itself.--> +The DTD could be declared inside the XML file itself: +```xml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE bookstore [ |