| [TCS] Eclipse Freeze [message #12260] |
Thu, 17 April 2008 07:40  |
Eclipse User |
|
|
|
Originally posted by: romain.perruchon.thalesgroup.com
Hi,
In some situation, my eclipse freeze when I launch my sample language
(with the TGE). I noticed that it appear when I have an error in my tcs
and it compiled nevertheless (no error mark with the TGE).
This time, my eclipse freeze again but I don't find error in my tcs, here
is my files :
------------------------------------------------
CSV_generic.km3
-- @name CSV_generic
-- @version 0.1
-- @authors ${romain perruchon}
-- @date ${13/03/2008}
-- @description ${description}
package CSV_generic {
class CSV_generic {
reference ligne [*] ordered container : Ligne;
}
class Ligne {
reference colonne[*] ordered container : Element;
}
abstract class Element {}
class NamedElement extends Element {
attribute name : String;
}
class EmptyElement extends Element {}
}
package PrimitiveTypes {
datatype String;
}
------------------------------------------------
CSV_generic.tcs
-- @name CSV_generic
-- @version 0.1
-- @authors ${romain perruchon}
-- @date ${13/03/2008}
-- @description ${description}
syntax CSV_generic {
primitiveTemplate string for String default using STRING:
value = "%token%";
template CSV_generic main
: ligne <newline>
;
template Ligne main
: colonne
;
template Element abstract;
template NamedElement
: name ";"
;
template EmptyElement
: ";"
;
token COMMENT : endOfLine(start = "--");
-- BEGIN Lexer
lexer = "
%options testLiterals = false;
NL
: ( '\\r' '\\n' | '\\n' '\\r' | '\\r' |
'\\n' ) {newline();}
;
WS
: ( ' ' | '\\t' )
;
STRING
:
(
~(';' |'\\\\'|'\\''|'\\n')
)*
;
";
}
and my language sample : Test1.csv
Environnement;Domaine;serveur;Nom node;Port
SS;AAA3B;111.22.3.444;XXXX-YYYy-ZZ3Z-AAAAA;7777
SS;AAA3B;111.22.3.444;XXXX-YYYy-ZZ3Z-AAAAA;8888
;;111.22.3.444;XXXX-YYYy-ZZ3Z-BB;9999
Thanks
|
|
|
| Re: [TCS] Eclipse Freeze [message #12271 is a reply to message #12260] |
Thu, 17 April 2008 11:33  |
 Frédéric Jouault
Messages: 572
Registered: July 2009 |
Senior Member |
|
|
Hi,
In your metamodel, a Ligne may have no Colonne.
In your TCS model, the textual representation of an empty Ligne is
"epsilon" (i.e., an empty string).
Therefore, the generated grammar is ambiguous. You should see ANTLR
warnings on the grammar file, stating that some alternatives have been
disabled for some inputs. In this case, the "end of list" alternative
for input "EOF" (End Of File) is disabled, making the parser loop
infinitely.
The simplest solution is to change the multiplicity of reference colonne
from [*] to [1-*].
Regards,
Frédéric Jouault
romain Perruchon a écrit :
> Hi,
>
> In some situation, my eclipse freeze when I launch my sample language
> (with the TGE). I noticed that it appear when I have an error in my tcs
> and it compiled nevertheless (no error mark with the TGE).
>
> This time, my eclipse freeze again but I don't find error in my tcs,
> here is my files :
>
> ------------------------------------------------
> CSV_generic.km3
>
> -- @name CSV_generic
> -- @version 0.1
> -- @authors ${romain perruchon}
> -- @date ${13/03/2008}
> -- @description ${description}
>
> package CSV_generic {
>
> class CSV_generic {
> reference ligne [*] ordered container : Ligne;
> }
>
> class Ligne {
> reference colonne[*] ordered container : Element;
> }
>
> abstract class Element {}
>
> class NamedElement extends Element {
> attribute name : String;
> }
>
> class EmptyElement extends Element {}
> }
>
> package PrimitiveTypes {
> datatype String;
> }
>
> ------------------------------------------------
> CSV_generic.tcs
>
> -- @name CSV_generic
> -- @version 0.1
> -- @authors ${romain perruchon}
> -- @date ${13/03/2008}
> -- @description ${description}
>
>
> syntax CSV_generic {
> primitiveTemplate string for String default using STRING:
> value = "%token%";
>
> template CSV_generic main
> : ligne <newline>
> ;
>
> template Ligne main
> : colonne
> ;
>
> template Element abstract;
>
> template NamedElement
> : name ";"
> ;
>
> template EmptyElement
> : ";"
> ;
>
> token COMMENT : endOfLine(start = "--");
>
> -- BEGIN Lexer
> lexer = "
> %options testLiterals = false;
>
> NL
> : ( '\\r' '\\n' | '\\n' '\\r' | '\\r' |
> '\\n' ) {newline();}
> ;
>
> WS
> : ( ' ' | '\\t' )
> ;
>
> STRING
> :
> (
> ~(';' |'\\\\'|'\\''|'\\n')
> )*
> ;
>
> ";
> }
>
> and my language sample : Test1.csv
>
> Environnement;Domaine;serveur;Nom node;Port
> SS;AAA3B;111.22.3.444;XXXX-YYYy-ZZ3Z-AAAAA;7777
> SS;AAA3B;111.22.3.444;XXXX-YYYy-ZZ3Z-AAAAA;8888
> ;;111.22.3.444;XXXX-YYYy-ZZ3Z-BB;9999
>
> Thanks
>
|
|
|
| Re: [TCS] Eclipse Freeze [message #12325 is a reply to message #12271] |
Fri, 18 April 2008 08:57 |
| Eclipse User |
|
|
|
Originally posted by: romain.perruchon.thalesgroup.com
Hi,
Thanks for answer, I already change [*] to [1-*] yersterday and I always
have a problem but this time I know why : in my sample language I have to
add ";" at the end of each line to have no freeze.
In fact, my grammar is define like this :
template NamedElement
: name ";"
;
template EmptyElement
: ";"
;
How to define my elements without ";" after name ?
My sample language :
Environnement;Domaine;serveur;Nom node;Port
SS;AAA3B;111.22.3.444;XXXX-YYYy-ZZ3Z-AAAAA;7777
SS;AAA3B;111.22.3.444;XXXX-YYYy-ZZ3Z-AAAAA;8888
;;111.22.3.444;XXXX-YYYy-ZZ3Z-BB;9999
;;111.22.3.444;;9999
I can't do ";" name because of the first element of each line and I can't
use {separator ";"} because of EmptyElement.
I also have a problem with my definition of lines :
template CSV_generic main
: ligne <newline>
;
don't work like I would and I don't know why, if I add a ";" at the end of
each lines of my sample language to work with my actual definition, The
outline recognize one line, like this :
CSV_generic
-> Ligne
-> NamedElement
[...]
-> NamedElement
Only one line instead of five.
Thanks for the help
|
|
|
| Re: [TCS] Eclipse Freeze [message #12334 is a reply to message #12325] |
Fri, 18 April 2008 15:40 |
Frédéric Jouault
Messages: 572
Registered: July 2009 |
Senior Member |
|
|
Hi,
Your problem is that you need to consider the newline as the separator
between lines.
This may be possible with the current version of TCS, although some
small changes are probably required to make it simpler.
I am going to work on an example, please stay tuned (and ask again in a
few days if nothing comes ;-)).
Regards,
Frédéric Jouault
romain Perruchon a écrit :
> Hi,
>
> Thanks for answer, I already change [*] to [1-*] yersterday and I always
> have a problem but this time I know why : in my sample language I have
> to add ";" at the end of each line to have no freeze.
>
> In fact, my grammar is define like this :
>
> template NamedElement
> : name ";"
> ;
>
> template EmptyElement
> : ";"
> ;
>
> How to define my elements without ";" after name ?
>
> My sample language :
>
> Environnement;Domaine;serveur;Nom node;Port
> SS;AAA3B;111.22.3.444;XXXX-YYYy-ZZ3Z-AAAAA;7777
> SS;AAA3B;111.22.3.444;XXXX-YYYy-ZZ3Z-AAAAA;8888
> ;;111.22.3.444;XXXX-YYYy-ZZ3Z-BB;9999
> ;;111.22.3.444;;9999
>
> I can't do ";" name because of the first element of each line and I
> can't use {separator ";"} because of EmptyElement.
>
> I also have a problem with my definition of lines :
> template CSV_generic main
> : ligne <newline>
> ;
>
> don't work like I would and I don't know why, if I add a ";" at the end
> of each lines of my sample language to work with my actual definition,
> The outline recognize one line, like this :
> CSV_generic
> -> Ligne
> -> NamedElement
> [...]
> -> NamedElement
>
> Only one line instead of five.
>
> Thanks for the help
>
|
|
|
|
Powered by
FUDForum. Page generated in 0.03287 seconds
] 
Search
Help
Register
Login
Home
