[antlr-interest] How to do real division

[Benjamin Niemann]

Or you can of course just force at least one operator to be a float...

On Fri, May 16, 2008 at 10:38 PM, Benjamin Niemann <pink at odahoda.de> wrote:
> HI Curtis,
>
>  good point, haven't thought about his yet.
>  Should be fairly easy to fix, but it may not make it into the upcoming
>  V3.1 release.
>  If you are not afraid of building antlr yourself:
>
>  In src/org/antlr/codegen/templates/Python/Python.stg there's a line
>
>  <actions.(actionScope).header>
>
>  move it up right before the <@imports> line. Then you should be able to say
>
>  @header {
>     from __future__ import division
>  }
>
>  and it should appear where you need it.
>
>  As a long term solution I probably have to introduce a separate @
>  action, because e.g. when having other things than imports in @header,
>  you want these to be after the 'from antlr import *'.
>
>  -Ben
>
>
>
>  On Fri, May 16, 2008 at 4:19 PM, Curtis Deck <curtis at v-sim.com> wrote:
>  >
>  >
>  >
>  >
>  > I am writing an expression evaluator using antlr 3 and python. I want to do
>  > real division but I cannot use from __future__ import division because it
>  > needs to be at the top of the script.
>  >
>  >
>  >
>  > Can any one help me please.
>  >
>  >
>  >
>  > Thanks in advance!
>