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A lexer is only generated if the root grammar is a lexer or combined grammar.
Legal imports
The syntax is
| Code Block |
|---|
import A; |
or
| Code Block |
|---|
import A,B,...,Z; |
grammar | can import which grammars? |
|---|---|
lexer | lexer |
parser | parser |
tree parser | tree parser |
combined lexer/parser | lexer, parser |
...