Why "point" rule matches more then one number? - antlr4

Question

I try to write my first parser with ANTLR4. One of the rules I use in a already bigger grammerfile is supposed to match 2 numbers as a 2D-point. Here a cut down example of the grammer:
grammar example;
WS: [ \t\r\n]+ -> channel(HIDDEN);
INT: [0-9]+;
FLOAT: [0-9]*'.'?[0-9]+ ;
IDSTRING: [a-zA-Z_] [a-zA-Z0-9_]*;
NUMBER: (INT | FLOAT) ;
id: IDSTRING;
num: NUMBER;
sem: ';' ;
point: num num;
macro: 'MACRO' id macroprops* 'END ' id;
macroprops: macroorigin ;
macroorigin: 'ORIGIN' point sem;
When I know enter a basic example like this:
antlr4 example.g4 -o example/
cd example
javac *.java
echo -e "MACRO m_1\n ORIGIN 7 2.0 ;\nEND m_1" | grun example macro -tree
the first num in point matches both numbers and it throws an error, that any integer (here 0) is not a number:
line 3:9 mismatched input '0' expecting NUMBER
(macro MACRO (id m_1) (macroprops (macroorigin ORIGIN (point (num 0 0) (num <missing NUMBER>)) (sem ;))) END (id m_1))
I tried the definition of NUMBER and point for some different ways, but I suppose it should work like this. I dont't even understandhow num can match two token. Anybody can help?

Answer 1

Seems as ANTLR4 matches the TOKENS as the order of them given in the grammer. Adding fragment to INT and FLOAT fixed the problem, as NUMBER is the only TOKEN matching the number definition allowing both floats and ints then.
grammar example2;
WS: [ \t\r\n]+ -> channel(HIDDEN);
NUMBER: (INT | FLOAT) ;
fragment INT: [0-9]+;
fragment FLOAT: [0-9]*'.'?[0-9]+ ;
IDSTRING: [a-zA-Z_] [a-zA-Z0-9_]*;
id: IDSTRING;
num: NUMBER;
sem: ';' ;
point: num num;
macro: 'MACRO' id macroprops* 'END ' id;
macroprops: macroorigin ;
macroorigin: 'ORIGIN' point sem;
Thank you very much for pointing out to watch the token stream. But I still don't understand why it then matches both numbers to the num rule in the original question.
EDIT: Another mistake was, as mentioned by GRosenberg to just define the grammer elements in the rigth order, so NUMBER has a higher priority then it`s subrules.