1
2 //
3 // This source file is part of appleseed.
4 // Visit https://appleseedhq.net/ for additional information and resources.
5 //
6 // This software is released under the MIT license.
7 //
8 // Copyright (c) 2010-2013 Francois Beaune, Jupiter Jazz Limited
9 // Copyright (c) 2014-2018 Francois Beaune, The appleseedhq Organization
10 //
11 // Permission is hereby granted, free of charge, to any person obtaining a copy
12 // of this software and associated documentation files (the "Software"), to deal
13 // in the Software without restriction, including without limitation the rights
14 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
15 // copies of the Software, and to permit persons to whom the Software is
16 // furnished to do so, subject to the following conditions:
17 //
18 // The above copyright notice and this permission notice shall be included in
19 // all copies or substantial portions of the Software.
20 //
21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
22 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
24 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
26 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
27 // THE SOFTWARE.
28 //
29
30 // Interface header.
31 #include "indenter.h"
32
33 // Standard headers.
34 #include <cassert>
35 #include <string>
36
37 using namespace std;
38
39 namespace foundation
40 {
41
42 struct Indenter::Impl
43 {
44 size_t m_tab_size;
45 char m_tab_char;
46 string m_str;
47 };
48
Indenter(const size_t tab_size,const char tab_char)49 Indenter::Indenter(
50 const size_t tab_size,
51 const char tab_char)
52 : impl(new Impl())
53 {
54 impl->m_tab_size = tab_size;
55 impl->m_tab_char = tab_char;
56 }
57
~Indenter()58 Indenter::~Indenter()
59 {
60 delete impl;
61 }
62
operator ++()63 void Indenter::operator++()
64 {
65 impl->m_str.resize(impl->m_str.size() + impl->m_tab_size, impl->m_tab_char);
66 }
67
operator --()68 void Indenter::operator--()
69 {
70 assert(impl->m_str.size() >= impl->m_tab_size);
71
72 if (impl->m_str.size() >= impl->m_tab_size)
73 impl->m_str.resize(impl->m_str.size() - impl->m_tab_size, impl->m_tab_char);
74 else impl->m_str.resize(0);
75 }
76
c_str() const77 const char* Indenter::c_str() const
78 {
79 return impl->m_str.c_str();
80 }
81
82 } // namespace foundation
83