template.g4

grammar template;

start: in_line out_line code_group (symbol code_group)*;

in_line: IN name_type* NEWLINE;
out_line: OUT name_type* NEWLINE;

name_type: name COLON type;
name: TEXT;
type: TEXT;

code_group: code*?; //lazy match
code: TEXT | ANY_CHAR | NEWLINE | IN | OUT | CLOSE_BRACKET | OPEN_BRACKET | COLON;

//symbols eg %{hello}
symbol: OPEN_BRACKET symbol_name CLOSE_BRACKET;
symbol_name: TEXT;

//only basic parts of language here (which are always true)
OPEN_BRACKET: '%{';
CLOSE_BRACKET: '}';

IN: 'in';
OUT: 'out';
COLON: ':';

TEXT: [A-Za-z]+;
WS : [ \t]+ -> skip ; // skip spaces, tabs, newlines
NEWLINE: '\r' '\n' | '\n' | '\r';
ANY_CHAR: .;

/*
Example:

in low:int hight:int asdf:string
out low:int hight:int asdf:string

aeina
class a%{definitions}
{
    dataout::::
    %{definitions}
    artien%{definitions}
    {function%{definitions}2}
}
*/