[SOLVED] How to make suggestions from tags?

[Serhioromano]

This is my simple grammar

grammar HelloWorld

entry Model:
    (funcs+=Funct | types+=Type)*;

Funct:
    'function' name=ID ':' (COMMONTYPES | type=[Type:ID]) 'end_func';

Type:
    'type' name=ID 'end_type';

hidden terminal WS: /\s+/;
terminal ID: /[_a-zA-Z][\w_]*/;
terminal COMMONTYPES: /(BOOL|BYTE)/;

and here is my code

type test end_type

function fname : test end_func

When I enter test after : I have dropdown that suggests it, but in that list, I also want to see BOOL and BYTE but it looks like I cannot figure out how to do that. Please help.

I have a playground here

[msujew]

Hey @Serhioromano,

unfortunately, we cannot infer completion results from regex terminals automatically. You could try something like this instead:

grammar HelloWorld

entry Model:
    (funcs+=Funct | types+=Type)*;

Funct:
    'function' name=ID ':' (commonType=CommonType | type=[Type:ID]) 'end_func';

CommonType returns string: 'BOOL' | 'BYTE'; 

Type:
    'type' name=ID 'end_type';

hidden terminal WS: /\s+/;
terminal ID: /[_a-zA-Z][\w_]*/;

Alternatively, you can adjust the CompletionProvider to give you completion results for these terminals nonetheless. But using the approach above is likely more maintainable.

[Serhioromano]

Thank you. Where do i read complete .langium files syntax?