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https://github.com/TigerVNC/tigervnc.git
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47ed8d321c
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@2 3789f03b-4d11-0410-bbf8-ca57d06f2519
119 lines
4.1 KiB
C++
119 lines
4.1 KiB
C++
/* Copyright (C) 2002-2004 RealVNC Ltd. All Rights Reserved.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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// -=- TCharArray.h
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// This library contains the wide-character equivalent of CharArray, named
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// WCharArray. In addition to providing wide-character equivalents of
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// the char* string manipulation functions (strDup, strFree, etc), special
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// versions of those functions are provided which attempt to convert from
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// one format to the other.
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// e.g. char* t = "hello world"; WCHAR* w = wstrDup(t);
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// Results in w containing the wide-character text "hello world".
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// For convenience, the WStr and CStr classes are also provided. These
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// accept an existing (const) WCHAR* or char* null-terminated string and
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// create a read-only copy of that in the desired format. The new copy
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// will actually be the original copy if the format has not changed, otherwise
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// it will be a new buffer owned by the WStr/CStr.
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// In addition to providing wide character functions, this header defines
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// TCHAR* handling classes & functions. TCHAR is defined at compile time to
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// either char or WCHAR. Programs can treat this as a third data type and
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// call TStr() whenever a TCHAR* is required but a char* or WCHAR* is supplied,
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// and TStr will do the right thing.
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#ifndef __RFB_WIN32_TCHARARRAY_H__
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#define __RFB_WIN32_TCHARARRAY_H__
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#define WIN32_LEAN_AND_MEAN
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#include <tchar.h>
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#include <rfb/util.h>
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namespace rfb {
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// -=- String duplication and cleanup functions.
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// These routines also handle conversion between WCHAR* and char*
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char* strDup(const WCHAR* s);
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WCHAR* wstrDup(const WCHAR* s);
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WCHAR* wstrDup(const char* s);
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void wstrFree(WCHAR* s);
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bool wstrSplit(const WCHAR* src, const WCHAR limiter, WCHAR** out1, WCHAR** out2, bool fromEnd=false);
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bool wstrContains(const WCHAR* src, WCHAR c);
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// -=- Temporary format conversion classes
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// CStr accepts WCHAR* or char* and behaves like a char*
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// WStr accepts WCHAR* or char* and behaves like a WCHAR*
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struct WStr {
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WStr(const char* s) : buf(wstrDup(s)), free_(true) {}
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WStr(const WCHAR* s) : buf(s), free_(false) {}
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~WStr() {if (free_) wstrFree((WCHAR*)buf);}
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operator const WCHAR*() {return buf;}
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const WCHAR* buf;
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bool free_;
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};
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struct CStr {
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CStr(const char* s) : buf(s), free_(false) {}
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CStr(const WCHAR* s) : buf(strDup(s)), free_(true) {}
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~CStr() {if (free_) strFree((char*)buf);}
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operator const char*() {return buf;}
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const char* buf;
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bool free_;
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};
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// -=- Class to handle cleanup of arrays of native Win32 characters
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class WCharArray {
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public:
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WCharArray() : buf(0) {}
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WCharArray(char* str) : buf(wstrDup(str)) {strFree(str);} // note: assumes ownership
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WCharArray(WCHAR* str) : buf(str) {} // note: assumes ownership
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WCharArray(int len) {
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buf = new WCHAR[len];
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}
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~WCharArray() {
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delete [] buf;
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}
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// Get the buffer pointer & clear it (i.e. caller takes ownership)
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WCHAR* takeBuf() {WCHAR* tmp = buf; buf = 0; return tmp;}
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void replaceBuf(WCHAR* str) {delete [] buf; buf = str;}
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WCHAR* buf;
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};
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#ifdef _UNICODE
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#define tstrDup wstrDup
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#define tstrFree wstrFree
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#define tstrSplit wstrSplit
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#define tstrContains wstrContains
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typedef WCharArray TCharArray;
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typedef WStr TStr;
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#else
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#define tstrDup strDup
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#define tstrFree strFree
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#define tstrSplit strSplit
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#define tstrContains strContains
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typedef CharArray TCharArray;
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typedef CStr TStr;
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#endif
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};
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#endif |