Advice on how to make this look up?

Question

Hello everyone.
I was wondering if anyone can give me advice on how to do this to make it the last complex.
I thought up some complex solutions that will work but seem messy in some ways.
I need to create a look up, I'm parsing a file and transforming it based on its field name and field value. If a certain field name and field value is found, I need to create specific subfields. An example is:
say I read in a file and I come across
A class named interface
with a data field DisplayStatus and field type: INTEGER INIT(132)
DisplayStatus INTEGER INIT(132)
Then I need to create a file that looks like this:
DisplayStatus INTEGER INIT(132);
OP 'interface'.'DisplayStatus'
HAS_SUBFIELD NOTIFY;
OP 'interface'.'DisplayStatus'
HAS_SUBFIELD TIMESTAMP;
OP 'interface'.'DisplayStatus'
HAS_SUBFIELD CHANGE;
OP 'interface'..'DisplayStatus'.CHANGE
SUBFIELD_HAS_VALUE (METHODSPEC) (DUIFCRDC) ;
OP 'interface'.'DisplayStatus'
On the other hand, if I run across a field name:
CommandIndicator CHARVAR;
Then I need to create the following in a file:
CommandIndicator CHARVAR;
OP 'interface'.'CommandIndicator'
HAS_SUBFIELD NOTIFY;
So you can see, based on a specific field name, and data type, they have unique data types.
My solution was going to store a text file that contained all the field names, data types and subfields, and just create a map, so based on the field name, it will look up the value which wil be the subfields, but you can see the sub fields can either be 1 line long, or it can be multiple lines long, thats where I'm running into issues.
What type of data structure would I use? a Map<String, List<String>> ? or is that making it more complicated than it ahs to be?

Answer 1

To make sure I understood you correctly:
You have a file like
class classname
fieldname1 DATATYPE1 constraint
fieldname2 DATATYPE2 constraintyou want
OP 'classname'.'fieldname1'.some optional string
some line defined by DATATYPE1
...How would you store "some optional string" in a Map<String, List<String>>?
Do you just replace a special char sequence with 'interface'..'DisplayStatus'?
If so, why not just store the lines in one String including the line breaks, making the list dispensable?
Regarding XML:
I guess he meant that if you had both your source files in xml, you could do what you want via XSL transformation.
But you'll have to google for that yourself. It has been a while since I worked with that.