00001 // 00002 // aegis - project change supervisor 00003 // Copyright (C) 2008 Peter Miller 00004 // 00005 // This program is free software; you can redistribute it and/or modify 00006 // it under the terms of the GNU General Public License as published by 00007 // the Free Software Foundation; either version 3 of the License, or (at 00008 // your option) any later version. 00009 // 00010 // This program is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 // General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License along 00016 // with this program. If not, see <http://www.gnu.org/licenses/>. 00017 // 00018 00019 #ifndef COMMON_WSTRING_ACCUMULATOR_H 00020 #define COMMON_WSTRING_ACCUMULATOR_H 00021 00022 #include <common/wstring.h> 00023 00028 class wstring_accumulator 00029 { 00030 public: 00035 ~wstring_accumulator(); 00036 00040 wstring_accumulator(); 00041 00045 wstring_accumulator(const wstring_accumulator &); 00046 00050 wstring_accumulator &operator=(const wstring_accumulator &); 00051 00056 wstring mkstr() const; 00057 00065 void 00066 push_back(wchar_t c) 00067 { 00068 if (length < maximum) 00069 buffer[length++] = c; 00070 else 00071 overflow(c); 00072 } 00073 00083 void push_back(const wchar_t *data, size_t len); 00084 00092 void push_back(const wchar_t *data); 00093 00101 void push_back(const wstring_accumulator &data); 00102 00110 void push_back(const wstring &data); 00111 00116 void clear() { length = 0; } 00117 00122 size_t size() const { return length; } 00123 00128 bool empty() const { return (length == 0); } 00129 00134 void pop_back() { if (length) --length; } 00135 00140 wchar_t back() { return (length ? buffer[length - 1] : 0); } 00141 00152 const wchar_t *get_data() const { return (buffer ? buffer : L""); } 00153 00162 wchar_t operator[](size_t n) { return buffer[n]; } 00163 00164 private: 00173 void overflow(wchar_t c); 00174 00179 size_t length; 00180 00185 size_t maximum; 00186 00191 wchar_t *buffer; 00192 }; 00193 00194 #endif // COMMON_WSTRING_ACCUMULATOR_H
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