|
I agree it could be done with options etc. but they could never be as
generic I suspect as those of XML-INTO. I was just trying to point out
that it seem trivial until you realize that somebody else makes the rules
and you re trying to generate something that matches. This is particularly
true it seems to me with JSON where the rules are more liberal.
All I know is that COBOL has had the kind of facility that Barbara
describes and it goes largely unused because it cannot readily produce the
formats defined by web service providers etc. without pre-processing. If
you get to define the format of the JSON and XML yourself it is a different
story.
Jon Paris
www.partner400.com
www.SystemiDeveloper.com
On Mar 19, 2018, at 2:46 PM, Mark Murphy <jmarkmurphy@xxxxxxxxx> wrote:similarly.
I don't know about that. XML-INTO handles missing or extra elements, and
name spaces with options and prefixes. DATA/XML-FROM could work
For example:numeric
Options could define an attributePrefix=atr_ then
dcl-ds accounts;
dcl-ds account dim(99);
Id char(6);
name char(30);
end-ds;
end-ds;
Should result in:
<accounts>
<account>
<id>xxxxxx</id>
<name>name stuff</name>
</accoun>
<account>
<id>yyyyyy</id>
<name>name stuff</name>
</accoun>
....
</accounts>
and
dcl-ds accounts;
dcl-ds account dim(99);
atr_Id char(6);
name char(30);
end-ds;
end-ds;
Should result in:
<accounts>
<account "id=xxxxxx">
<name>name stuff</name>
</accoun>
<account "id=yyyyyy">
<name>name stuff</name>
</accoun>
....
</accounts>
Blank character fields could result in a missing element. Likewise
elements with a value of 0 could result in a missing element. Or anoption
could control that. A count field with a prefix option could be used tofew
specify the number of elements to produce for multiple elements.
I would expect generation of JSON to be even easier as there are only a
ways to create valid JSON as opposed to XML. JSON has no name-space todeal
with, and no schemas either. There is no need to differentiate betweenis
attributes and values, JSON has only values. JSON always starts with an
object which is a collection of name:value pairs. A name is always a
string. A value can be a string, a number, a list, or an object. A list
a collection of values. A string is surrounded by double quotes, a numberby
isn't. An object is surrounded by curly braces, and a list is surrounded
square brackets. That is the whole spec.wrote:
On Mon, Mar 19, 2018 at 3:15 PM, Jon Paris <jon.paris@xxxxxxxxxxxxxx>
you
Easier said than done Mark.
COBOL has an XML generation capability built in - but most of the time
wrote:still need to transform it before it can be used.
For example - given a DS like this:
dcl-ds accounts;
dcl-ds account dim(99);
Id char(6);
name char(30);
end-ds;
end-ds;
Should that result in:
<accounts>
<account>
<id>xxxxxx</id>
<name>name stuff</name>
</accoun>
<account>
<id>yyyyyy</id>
<name>name stuff</name>
</accoun>
....
</accounts>
Or
<accounts>
<account "id=xxxxxx">
<name>name stuff</name>
</accoun>
<account "id=yyyyyy">
<name>name stuff</name>
</accoun>
....
</accounts>
And that is just a trivial example. I suspect for JSON it would be even
worse as the rules are not as strict as for XML and people do really
strange things.
Jon Paris
www.partner400.com
www.SystemiDeveloper.com
On Mar 19, 2018, at 9:22 AM, Mark Murphy <jmarkmurphy@xxxxxxxxx>
maybe
Great, now all we need to complete that picture is a DATA-FROM (and
language,even an XML-FROM) to make it simple to produce JSON or whatever datawrote:
interchange format from a data structure.
On Fri, Mar 16, 2018 at 4:55 PM, Barbara Morris <bmorris@xxxxxxxxxx>
On 2018-03-16 11:35 AM, Barbara Morris wrote:
The latest enhancement for RPG is available for 7.2 and 7.3: The
DATA-INTO opcode. It's like XML-INTO, but for any structured
yousuch
as JSON. The big difference between DATA-INTO and XML-INTO is that
(RPG400-L)have
to supply the parser for the structured language.
Here's a article by Jon Paris about DATA-INTO:
http://ibmsystemsmag.com/ibmi/developer/rpg/rpg-data-into/
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