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1 | // Copyright (c) 2001-2011 Hartmut Kaiser |
2 | // Copyright (c) 2001-2011 Joel de Guzman | |
3 | // | |
4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
6 | ||
7 | #if !defined(SPIRIT_UPPER_LOWER_CASE_JANUARY_19_2009_1142AM) | |
8 | #define SPIRIT_UPPER_LOWER_CASE_JANUARY_19_2009_1142AM | |
9 | ||
10 | #if defined(_MSC_VER) | |
11 | #pragma once | |
12 | #endif | |
13 | ||
14 | #include <boost/spirit/home/support/common_terminals.hpp> | |
15 | #include <boost/spirit/home/support/modify.hpp> | |
16 | #include <boost/spirit/home/karma/domain.hpp> | |
17 | #include <boost/spirit/home/karma/meta_compiler.hpp> | |
18 | ||
19 | namespace boost { namespace spirit | |
20 | { | |
21 | /////////////////////////////////////////////////////////////////////////// | |
22 | // Enablers | |
23 | /////////////////////////////////////////////////////////////////////////// | |
24 | template <typename CharEncoding> | |
25 | struct use_directive< | |
26 | karma::domain, tag::char_code<tag::upper, CharEncoding> > // enables upper | |
27 | : mpl::true_ {}; | |
28 | ||
29 | template <typename CharEncoding> | |
30 | struct use_directive< | |
31 | karma::domain, tag::char_code<tag::lower, CharEncoding> > // enables lower | |
32 | : mpl::true_ {}; | |
33 | ||
34 | /////////////////////////////////////////////////////////////////////////// | |
35 | template <typename CharEncoding> | |
36 | struct is_modifier_directive<karma::domain | |
37 | , tag::char_code<tag::upper, CharEncoding> > | |
38 | : mpl::true_ {}; | |
39 | ||
40 | template <typename CharEncoding> | |
41 | struct is_modifier_directive<karma::domain | |
42 | , tag::char_code<tag::lower, CharEncoding> > | |
43 | : mpl::true_ {}; | |
44 | ||
45 | /////////////////////////////////////////////////////////////////////////// | |
46 | // Don't add tag::upper or tag::lower if there is already one of those in | |
47 | // the modifier list | |
48 | template <typename Current, typename CharEncoding> | |
49 | struct compound_modifier< | |
50 | Current | |
51 | , tag::char_code<tag::upper, CharEncoding> | |
52 | , typename enable_if< | |
53 | has_modifier<Current, tag::char_code<tag::lower, CharEncoding> > | |
54 | >::type | |
55 | > | |
56 | : Current | |
57 | { | |
58 | compound_modifier() | |
59 | : Current() {} | |
60 | ||
61 | compound_modifier(Current const& current, | |
62 | tag::char_code<tag::upper, CharEncoding> const&) | |
63 | : Current(current) {} | |
64 | }; | |
65 | ||
66 | template <typename Current, typename CharEncoding> | |
67 | struct compound_modifier< | |
68 | Current | |
69 | , tag::char_code<tag::lower, CharEncoding> | |
70 | , typename enable_if< | |
71 | has_modifier<Current, tag::char_code<tag::upper, CharEncoding> > | |
72 | >::type | |
73 | > | |
74 | : Current | |
75 | { | |
76 | compound_modifier() | |
77 | : Current() {} | |
78 | ||
79 | compound_modifier(Current const& current, | |
80 | tag::char_code<tag::lower, CharEncoding> const&) | |
81 | : Current(current) {} | |
82 | }; | |
83 | }} | |
84 | ||
85 | #endif |