RE: [xml-dev] Do I need XML parser ?

["Saha Rabindra N" <saha.rn@mellon.com>]

Hi Razvan,
 Can you please tell me whethere I can use Expat parser (written in C) to parse one datafile and then convert that to one XML file (in Unix env)? or expat is meant only for reading/parsing an existing XML file ?

Thanks in advance,

Regards
Rabindra Nath Saha


-----Original Message-----
From: Razvan MIHAIU [mailto:mihaiu@mihaiu.name]
Sent: Friday, March 04, 2005 12:41 PM
To: Saha Rabindra N
Cc: xml-dev@lists.xml.org
Subject: Re: [xml-dev] Do I need XML parser ?


Saha Rabindra N wrote:

> Hello,
>  As I am new to this XML business so I got a basic and simple question.
> Here it goes...
> I have one cobol data file (in ASCII format) and one cobol record description
file to describe the position/length of each field of data file.
>
> I want to generate one XML file out of that cobol data file. My question is
> 1) Do I need any XML parser to just generate one XML file from a data file ?
Or a simple programming logic can create the XML file ?

            An XML parser does what its name suggests: parse an XML file. Your
input file is not XML so you do not need an XML parser in this scenario.
            XML is just text: you can use programming logic (using the language
of your choice) or even a text editor. A text editor which allows you to
validate against a schema (like DTD, or XML Schema) will help but it is not
required. A text editor that I like is XML Spy - but this one is expensive.

> 2) While environment/programming language would be best in this scenario ?
>         a) program written in cobol on Mainframe ?
>         b) to transfer the datafile to a Unix m/c and the generate the XML
file in C language ?
>         c) to transfer the datafile to a Unix m/c and the generate the XML
file using shell script ?

            Obviously, you can use any of the above scenarios, but the best
thing would be to use the DOM to generate XML.
            The Apache foundation has a good implementation of the DOM
recommendation - namely Xerces. Xerces is written in Java, C++ and Perl:

http://xml.apache.org/xerces2-j/
http://xml.apache.org/xerces-c/
http://xml.apache.org/xerces-p/

            You will have to learn how to use the DOM interface:

http://www.troubleshooters.com/tpromag/200103/codexercises.htm


Regards,
Razvan


www.mihaiu.name
 
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