forked from jasder/antlr
56 lines
1.4 KiB
Plaintext
56 lines
1.4 KiB
Plaintext
ANTLR v4 Honey Badger early access
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Jan 21, 2012
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* Added modeNames to gen'd lexers
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* added lexer commands
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skip
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more
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popMode
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mode(x)
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pushMode(x)
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type(x)
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channel(x)
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WS : (' '|'\n')+ -> skip ;
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use commas to separate commands: "-> skip, mode(FOO)"
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Jan 14, 2012
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* labels on tokens in left-recursive rules caused codegen exception.
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* leave start/stop char index alone in CommonTokenFactory; refers to original text.
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* reuse of -> label on multiple alts in rule caused dup ctx object defs.
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Jan 11, 2012
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* -> id labels work now for outermost alternatives, even for left-recursive
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rules; e.g.,
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| a=e '*' b=e {$v = $a.v * $b.v;} -> mult
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* Fixed a bug where visitTerminal got a NPE
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* in tree views, spaces/newlines were blanks. I converted to \n and middle dot
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for space.
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Jan 5, 2012
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* Deleted code to call specific listeners by mistake. added back.
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* Labels allowed in left-recursive rules:
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e returns [int v]
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: a=e '*' b=e {$v = $a.v * $b.v;}
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| a=e '+' b=e {$v = $a.v + $b.v;}
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| INT {$v = $INT.int;}
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| '(' x=e ')' {$v = $x.v;}
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;
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Jan 4, 2012
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* '_' was allowed first in symbol names in grammar
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* fix unit tests
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* Allow labels in left-recursive rules
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* lr rules now gen only 1 rule e->e not e->e_ etc... altered tests to build parse trees.
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* no more -trace, use Parser.setTrace(true)
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* add context rule option; not hooked up
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* 1+2*3 now gives new parse tree: (e (e 1) + (e (e 2) * (e 3)))
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