[antlr-interest] changing the input while parsing
Tarun Khanna
tarunkhanna at gmail.com
Wed Jul 27 13:59:36 PDT 2005
Is there a way in ANTLR to change the input while still parsing it?
I am trying to implement auto-completion in expressions. eg
a.b.
now after this if the user hits a <TAB> the whole expression including the
<TAB> are sent to the parser for evaluation. Currently this is achieved
using exception to bail out of the parser.
However is there a way to get back to the same state where we left off,
while parsing and send the new replaced token to the parser instead of the
<TAB>.
Is there a way to at-least rewind the token stream to a previous position
and then start a rule from there on-wards?
--
Tarun Khanna
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