[Boost-users] [wave] Dummy lexer

Subject: [Boost-users] [wave] Dummy lexer
From: Ravi (lists_ravi_at_[hidden])
Date: 2010-11-20 13:52:12

Hi,
  Is it possible to use wave only for the following?
   - Macros
   - Conditional inclusion/exclusion
   - #include handling

In other words, it is possible to use wave with a dummy lexer? The idea is to 
use wave to generate a string representation after preprocessing a file; the 
resulting string can then be passed to a custom spirit V2.2+ grammar.

One could write a lexer with the tiny subset of C++ tokens that is used in my 
grammar, but that seems overkill for a small grammar (which is currently well-
tested and performs quite well). The application is very similar to the C++-
like config file structure supported by property_tree.

The closest I have been able to come using components out of the box is to use 
the cpplexer with the following non-default features (compared to the quick-
start example):
  - preserve comments
  - disable whitespace insertion

If a dummy lexer is already available that works, where can it be found?

Regards,
Ravi