// some basic fragments
terminal fragment ct : 'T';
terminal fragment digit: '0'..'9';
terminal fragment letter: 'a'..'z' | 'A'..'Z';
terminal fragment us: '_';

// white space
terminal WS: (' '|'\t'|'\r'|'\n')+;

// numbers
terminal INT returns ecore::EInt: ('0'..'9')+;
terminal exponent: ('e' | 'E') ('+' | '-')? INT;
terminal number_literal : (INT ('.' INT?)? exponent?) | ('.' INT exponent?);

// id and mlmname
terminal ID : letter (letter | us | digit)*;
terminal trm_mlmname_text : letter (letter | digit | us | '-' | '.')*;

// strings
terminal fragment simplestring: !'"';
terminal string_literal : '"' simplestring* ('""' simplestring+)* '"';

// iso date/datetime
terminal fragment fractional_seconds: ('.' INT)?;
terminal fragment time_zone: ('Z' | 'z' 
    | '+' digit digit ':' digit digit 
    | '-' digit digit ':' digit digit)?
;
terminal iso_date :  digit digit digit digit '-' digit digit '-' digit digit;
terminal iso_date_time :  iso_date ct digit digit ':' digit digit ':' digit digit fractional_seconds time_zone;

// from bracket to bracket
terminal data_mapping :  '{' -> '}';

// not two semicolons in a row
terminal trm_ttext: (!';')+ (';' (!';')+)*;

// comments
terminal ML_COMMENT : '/*' -> '*/';
terminal SL_COMMENT : '//' !('\n'|'\r')* ('\r'? '\n')?;

options = {
  classSplitting=true
}