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- From: Ramesh Gupta <ramesh@eNode.com>
- To: xml-dev@lists.xml.org
- Date: Fri, 03 Nov 2000 09:09:44 -0800
Use character entity references of the form &#n; where n is a decimal value
in the range '0' to '255' to represent a character from the extended ASCII
set, ISO 8859/1. So, for example, "(" can be written as ( and is
equivalent to the built-in text entity reference (
I also suggest that you get an XML primer and do some independent research.
The XML dev list is a great resource, but it is not a substitute for a good
book, of which there are plenty available now.
Ramesh
on 11/3/00 8:44 AM, Pramod Rao Pesara at ppesara@cs.nmsu.edu wrote:
>
> thanks a lot. But is there a way to represent special characters like "(",
> ")" and "/" in a DTD?
> Pramod.
>
>
>
>
>
> On Fri, 3 Nov 2000, Hanson, Jon wrote:
>
>> assuming your grammar is BNF so valid sentences would be e.g.:-
>>
>> (lambda fred xyz)
>>
>> (lambda a234 adf)
>> etc
>>
>> then such expressions would not be valid xml, so you can't really write a
>> DTD for them.
>> an XML equivalent of what you appear to be attempting might be something
>> like:-
>>
>> <lambda>
>> <name>fred</name>
>> <body>xyz</body>
>> </lambda>
>>
>> for which the DTD would look like:-
>>
>> <!ELEMENT lambda (name , body )>
>> <!ELEMENT name (#PCDATA )>
>> <!ELEMENT body (#PCDATA )>
>>
>> jon
>>
>>> -----Original Message-----
>>> From: Pramod Rao Pesara [SMTP:ppesara@cs.nmsu.edu]
>>> Sent: Friday, November 03, 2000 3:55 PM
>>> To: xml-dev@lists.xml.org
>>> Subject: Writing a DTD
>>>
>>> Hi,
>>> I new to XMl and just learning to write DTDs. Could anyone please help
>>>
>>> me in writing a DTD for the following Grammar. Here "lamda", "(" and
>>> ,")" are keywords and text1 and test2 can be any character data.
>>>
>>> Expression ::= "(" "lambda" text1 text2 ")"
>>>
>>> Thank You.
>>> Pramod
>>
>
>
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