[antlr-interest] bugs fixed today
Terence Parr
parrt at jguru.com
Sat Jan 5 15:36:14 PST 2002
A couple of nasty bugs that took a long time to track and evaluate/fix.
My remaining items for 2.7.2 final looks like:
o check char io stream exceptions are wrapped properly in
TokenStreamException's.
o possibly add static bitset init optimization (don't init 0L values).
o possibly modify antlr to allow recent suggestions for eclipse
integration.
Anything else burning a hole in somebody's head?
BTW, has anybody tested the antlr.jar (runtime) file to see if it is
sufficient (especially when errors are caught in your parsers)?
Ter
-------------------------------------------------------
01-05-2002:
*** removed Sather support at the request of the supporter.
*** add warning/error. Bad code gen with ^ or ! on tree root
when building trees in a tree walker grammar such as:
expr: #(PLUS^ expr expr)
| i:INT
;
Fortunately, ^ is simply redundant; removing it makes code ok.
Added a warning. Added an error message for ! saying that it
is not implemented.
*** bug fix: incorrect code generation for #(. BLORT) in
tree walker grammar. Didn't properly handle the wildcard
root (missing _t==null check).
--
Chief Scientist & Co-founder, http://www.jguru.com
Creator, ANTLR Parser Generator: http://www.antlr.org
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