[antlr-interest] Having trouble with creating a parser for my desired grammar. Running afoul of multiple alternatives warnings

Bart Kiers bkiers at gmail.com
Wed Nov 16 11:38:20 PST 2011


Hi,

On Wed, Nov 16, 2011 at 8:21 PM, Jarrod Roberson <jarrod at vertigrated.com>wrote:

>
> actually thanks to Bart I need the FLOAT rule as a parser rule with the
> predicate because I want to be able to match


But John raises a valid point that I didn't mention: by "promoting" such a
rule to a parser rule, you run the risk that the parser matches a `number`
rule for the input source: "123   .   5" (spaces around the '.') because
the parser ignores the white spaces.

Regards,

Bart.


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