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//@beginlicenses@
//@license{chiba_tokyo}{}@
//@license{xerox}{}@
//@license{contributors}{}@
//
// Permission to use, copy, distribute and modify this software and its
// documentation for any purpose is hereby granted without fee, provided that
// the above copyright notice appears in all copies and that both that copyright
// notice and this permission notice appear in supporting documentation.
//
// 1997-2001 Shigeru Chiba, Tokyo Institute of Technology. make(s) no representations about the suitability of this
// software for any purpose. It is provided "as is" without express or implied
// warranty.
//
// Copyright (C) 1997-2001 Shigeru Chiba, Tokyo Institute of Technology.
//
// -----------------------------------------------------------------
//
//
// Copyright (c) 1995, 1996 Xerox Corporation.
// All Rights Reserved.
//
// Use and copying of this software and preparation of derivative works
// based upon this software are permitted. Any copy of this software or
// of any derivative work must include the above copyright notice of
// Xerox Corporation, this paragraph and the one after it. Any
// distribution of this software or derivative works must comply with all
// applicable United States export control laws.
//
// This software is made available AS IS, and XEROX CORPORATION DISCLAIMS
// ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE, AND NOTWITHSTANDING ANY OTHER PROVISION CONTAINED HEREIN, ANY
// LIABILITY FOR DAMAGES RESULTING FROM THE SOFTWARE OR ITS USE IS
// EXPRESSLY DISCLAIMED, WHETHER ARISING IN CONTRACT, TORT (INCLUDING
// NEGLIGENCE) OR STRICT LIABILITY, EVEN IF XEROX CORPORATION IS ADVISED
// OF THE POSSIBILITY OF SUCH DAMAGES.
//
// -----------------------------------------------------------------
//
// Permission to use, copy, distribute and modify this software and its
// documentation for any purpose is hereby granted without fee, provided that
// the above copyright notice appears in all copies and that both that copyright
// notice and this permission notice appear in supporting documentation.
//
// Other Contributors (see file AUTHORS) make(s) no representations about the suitability of this
// software for any purpose. It is provided "as is" without express or implied
// warranty.
//
// Copyright (C) Other Contributors (see file AUTHORS)
//
//@endlicenses@
#include <cstring>
#include <opencxx/parser/ProgramString.h>
#include <opencxx/parser/GC.h>
namespace Opencxx
{
const int Quantum = 4;
const int BufSize = 1 << Quantum;
ProgramString::ProgramString()
: Program("unknown")
{
buf = new (GC) char[BufSize];
buf[0] = '\0';
size = BufSize;
index = str_length = 0;
}
ProgramString::~ProgramString()
{
// delete [] buf;
buf = 0;
}
ProgramString& ProgramString::operator << (const char* str)
{
int len = strlen(str) + 1;
if(str_length + len < size){
memmove(&buf[str_length], str, len);
str_length += len - 1;
}
else{
size = (str_length + len + BufSize) & ~(BufSize - 1);
char* newbuf = new (GC) char[size];
memmove(newbuf, buf, size_t(str_length));
memmove(&newbuf[str_length], str, len);
// delete [] buf;
buf = newbuf;
str_length += len - 1;
}
return *this;
}
ProgramString& ProgramString::operator << (const char c)
{
if(str_length + 2 < size){
buf[str_length] = c;
buf[++str_length] = '\0';
}
else{
size = (str_length + 2 + BufSize) & ~(BufSize - 1);
char* newbuf = new (GC) char[size];
memmove(newbuf, buf, size_t(str_length));
newbuf[str_length] = c;
newbuf[++str_length] = '\0';
// delete [] buf;
buf = newbuf;
}
return *this;
}
}
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