Hi folks:
I see in the ANTLR grammar that you can place a BANG (exclamation point) after
the initial rule id in a rule. Indeed it's used in the ANTLR v3 grammar itself:
----------------------------
range!
: c1=CHAR_LITERAL RANGE c2=CHAR_LITERAL elementOptions?
-> ^(CHAR_RANGE[$c1,".."] $c1 $c2 elementOptions?)
;
----------------------------
Could someone illuminate what this ! does?
Thanks, Graham
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