ceph/src/boost/libs/spirit/doc/qi/num_list3.qbk

   1 [/==============================================================================
   2     Copyright (C) 2001-2011 Joel de Guzman
   3     Copyright (C) 2001-2011 Hartmut Kaiser
   4
   5     Distributed under the Boost Software License, Version 1.0. (See accompanying
   6     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   7 ===============================================================================/]
   8
   9 [section Number List Redux - list syntax]
  10
  11
  12 So far, we've been using the syntax:
  13
  14     double_ >> *(',' >> double_)
  15
  16 to parse a comma-delimited list of numbers. Such lists are common in parsing and
  17 Spirit provides a simpler shortcut for them. The expression above can be
  18 simplified to:
  19
  20     double_ % ','
  21
  22 read as: a list of doubles separated by `','`.
  23
  24
  25 This sample, again a variation of our previous example, demonstrates just that:
  26
  27 [import ../../example/qi/num_list3.cpp]
  28
  29 [tutorial_numlist3]
  30
  31 The full cpp file for this example can be found here: [@../../example/qi/num_list3.cpp]
  32
  33 [endsect]