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using qualifiedNameConverter for the output [message #1771731]

Tue, 29 August 2017 23:57

Eclipse User

Hello Experts,

This is my dsl(or I am trying to implement this)


  augment "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry"
  {
    status deprecated;
    description
     "An entry containing objects for invoking tests on an
      interface.";
    smiv2:oid "1.3.6.1.2.1.31.1.3.1";

    leaf ifTestId {
      type snmpv2-tc:TestAndIncr;
      status deprecated;
      description
       "This object identifies the current invocation of the
        interface's test.";
      smiv2:max-access "read-write";
      smiv2:oid "1.3.6.1.2.1.31.1.3.1.1";
    }

This is my Xtext grammar.


DatadefStatement:
	ContainerStatement |
	LeafStatement |
	ListStatement |
	LeafListStatement
;


AugmentStatement:
	'augment' path = SchemaNodeIdentifier 
	(';' | '{' 
		(augmentsubstatements+= AugmentSubStatement)*
		'}'
	)
;

AugmentSubStatement:
	DescriptionStatement |
	ContainerStatement |
	UsesStatement |
	LeafStatement |
	StatusStatement |
	UnknownStatement
;

SchemaNodeIdentifier returns SchemaNodeIdentifier:
	 RootSchemaNodeIdentifier ({SchemaNodeIdentifier.target=current}'/'((prefix=STRINGARG':')? schemaNode=[DatadefStatement]))*
;

RootSchemaNodeIdentifier returns SchemaNodeIdentifier:
	isAbsolute?='/'? ((prefix=STRINGARG':')?schemaNode=[DatadefStatement])
;

This is my qualifiedNameProvider


public class YangDefinitionQualifiedNameProvider extends DefaultDeclarativeQualifiedNameProvider {

	@Inject
	private IQualifiedNameConverter qnc;
	public QualifiedNameValueConverter qualifiedNameValueConverter(DatadefStatement d) 
	{
		return qualifiedNameValueConverter(d);
	}

I am getting this error:

mismatched input '{' expecting ':'

When I try to implement my grammar,
I am getting an output like mentioned below:


[color=darkred] augment / if-mib:IF-MIB / if-mib:IF-MIB.ifTable / if-mib:IF-MIB.ifTable.ifEntry [/color]
  {
    status deprecated;
    description
     "An entry containing objects for invoking tests on an
      interface.";
    smiv2:oid "1.3.6.1.2.1.31.1.3.1";

    leaf ifTestId {
      type snmpv2-tc:TestAndIncr;
      status deprecated;
      description
       "This object identifies the current invocation of the
        interface's test.";
      smiv2:max-access "read-write";
      smiv2:oid "1.3.6.1.2.1.31.1.3.1.1";
    }

I am not using scope provider.

Re: using qualifiedNameConverter for the output [message #1771734 is a reply to message #1771731]

Wed, 30 August 2017 00:42

Eclipse User

this makes no sense. mismatched input '{' expecting ':' is a parse error.
this runs before any qualified name providers and qualifiednameconverters

public QualifiedNameValueConverter qualifiedNameValueConverter(DatadefStatement d)
{
return qualifiedNameValueConverter(d);
}

makes no sense as well
have no idea what you try to achieve

Re: using qualifiedNameConverter for the output [message #1771736 is a reply to message #1771734]

Wed, 30 August 2017 00:52

Eclipse User

Hi Christian,

Actually yes, qualifiednameprovider doen't make sense. i try it and it doesn't matter if I write it or not.

The actual error is :-

no viable alternative at input '"/if-mib:IF-MIB/if-mib:ifTable/IF-MIB.ifTable.ifEntry"'

I am new in programming, so trying new codes and new techniques.

Regards,
Kaushal

Re: using qualifiedNameConverter for the output [message #1771737 is a reply to message #1771736]

Wed, 30 August 2017 00:54

Eclipse User

This is my dsl
This is what I am trying to achieve.

  augment "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry"
  {
    status deprecated;
    description
     "An entry containing objects for invoking tests on an
      interface.";
    smiv2:oid "1.3.6.1.2.1.31.1.3.1";

    leaf ifTestId {
      type snmpv2-tc:TestAndIncr;
      status deprecated;
      description
       "This object identifies the current invocation of the
        interface's test.";
      smiv2:max-access "read-write";
      smiv2:oid "1.3.6.1.2.1.31.1.3.1.1";
    }

[Updated on: Wed, 30 August 2017 00:55] by Moderator

Re: using qualifiedNameConverter for the output [message #1771740 is a reply to message #1771737]

Wed, 30 August 2017 01:32

Eclipse User

yes but i cannot help you. you need to find out whats wrong with your grammar

Re: using qualifiedNameConverter for the output [message #1771742 is a reply to message #1771740]

Wed, 30 August 2017 02:25

Eclipse User

Hi Chrisitan,

I have checked my grammar. I have some doubts.

1) I am getting whitespace in between two nodes. Can I get rid of those whitespace? If yes, then How?

/if-mib:IF-MIB /if-mib:ifTable /if-mib:ifEntry

2) Can I use cross-reference with double quotes?
like this:

"if-mib:IF-MIB"

When I am trying to use cross-reference with double quotes, it behaves like string value.

i am using cross-reference for both codes.

Here,
if-mib:IF-MIB
PrefixStatement:ContainerStatement

Re: using qualifiedNameConverter for the output [message #1771747 is a reply to message #1771742]

Wed, 30 August 2017 03:06

Eclipse User

as i said in other questions before.
i need a reproducible grammar.
i need a MINIMAL reproduible grammar.
and i like to have a unit test.
otherwise supporting such questions is pain

Re: using qualifiedNameConverter for the output [message #1771750 is a reply to message #1771747]

Wed, 30 August 2017 03:32

Eclipse User

This is my grammar.


AugmentStatement:
	'augment' path=SchemaNodeIdentifier
	(';' | '{' 
		(augmentsubstatements+= AugmentSubStatement)*
		'}'
	)
;

AugmentSubStatement:
	DescriptionStatement |
	ContainerStatement |
	UsesStatement |
	LeafStatement |
	StatusStatement |
	UnknownStatement
;

SchemaNodeIdentifier returns SchemaNodeIdentifier:
	 RootSchemaNodeIdentifier ({SchemaNodeIdentifier.target=current}'/'((pre=STRINGARG':')?schemaNode=[DatadefStatement]))*
;

RootSchemaNodeIdentifier returns SchemaNodeIdentifier:
	isAbsolute='/'?((pre=STRINGARG ':')?schemaNode=[DatadefStatement])
;

Re: using qualifiedNameConverter for the output [message #1771751 is a reply to message #1771750]

Wed, 30 August 2017 03:35

Eclipse User

well that grammar is neither minimal nor complete

Re: using qualifiedNameConverter for the output [message #1771752 is a reply to message #1771751]

Wed, 30 August 2017 03:50

Eclipse User


DatadefStatement:
	ContainerStatement |
	LeafStatement |
	ListStatement |
	LeafListStatement
;

ContainerStatement:
	'container' name=STRINGARG33 (';' | '{'
		(containersubstatements+= ContainerSubStatement)*
	'}')
;

ContainerSubStatement:
	ContainerStatement |
	LeafStatement |
	ListStatement |
	LeafListStatement |
	AugmentStatement |	
;

LeafStatement:
	'leaf' name=STRINGARG33 (';' | '{'
		(leafsubstatements+= LeafSubStatement)*
		'}'
	);
	
LeafSubStatement:
	ContainerStatement 
;

ListStatement:
	'list' name= (STRINGARG | KEY_IDENTIFIER) (';' | '{'
		(listsubstatements+= ListSubStatement)*
		'}'
	)
;

ListSubStatement:
	LeafStatement | 
	LeafListStatement |
	ContainerStatement 
;

LeafListStatement:
	'leaf-list' name=STRINGARG ';' 
;

AugmentStatement:
	'augment' path=SchemaNodeIdentifier
	(';' | '{' 
		(augmentsubstatements+= AugmentSubStatement)*
		'}'
	)
;

AugmentSubStatement:
	ContainerStatement |
	LeafStatement 
;

SchemaNodeIdentifier returns SchemaNodeIdentifier:
	 RootSchemaNodeIdentifier ({SchemaNodeIdentifier.target=current}'/'((pre=STRINGARG':')?schemaNode=[DatadefStatement]))*
;

RootSchemaNodeIdentifier returns SchemaNodeIdentifier:
	isAbsolute='/'?((pre=STRINGARG ':')?schemaNode=[DatadefStatement])
;

STRINGARG:
	ID | 'default' | INT | CUSTOMSTRING ;
	
CUSTOMSTRING:
	(STRING ('+' STRING)*);

terminal ID: 
    ('^')?('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'_'|'-'|'/'|'.'|'\"'|'0'..'9')*;

Check the attached file for full grammar.

Thanks.

Attachment: YangDefinition.xtext
(Size: 10.00KB, Downloaded 80 times)

Re: using qualifiedNameConverter for the output [message #1771754 is a reply to message #1771752]

Wed, 30 August 2017 04:01

Eclipse User

sorry i want a minimal but complete reproducing grammar and a unit test

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