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Copy pathtinystr.cpp
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304 lines (253 loc) · 7.48 KB
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/*
www.sourceforge.net/projects/tinyxml
Original file by Yves Berquin.
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any
damages arising from the use of this software.
Permission is granted to anyone to use this software for any
purpose, including commercial applications, and to alter it and
redistribute it freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product documentation
would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and
must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*/
#ifndef TIXML_USE_STL
#include "tinyxml/tinyxml.h"
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "tinyxml/tinystr.h"
// TiXmlString constructor, based on a C generic_string
TiXmlString::TiXmlString (const TCHAR* instring)
{
unsigned newlen;
TCHAR * newstring;
if (!instring)
{
allocated = 0;
cstring = NULL;
current_length = 0;
return;
}
newlen = lstrlen (instring) + 1;
newstring = new TCHAR [newlen];
memcpy (newstring, instring, newlen);
// lstrcpy (newstring, instring);
allocated = newlen;
cstring = newstring;
current_length = newlen - 1;
}
// TiXmlString copy constructor
TiXmlString::TiXmlString (const TiXmlString& copy)
{
unsigned newlen;
TCHAR * newstring;
// Prevent copy to self!
if ( © == this )
return;
if (! copy . allocated)
{
allocated = 0;
cstring = NULL;
current_length = 0;
return;
}
newlen = copy . length () + 1;
newstring = new TCHAR [newlen];
// lstrcpy (newstring, copy . cstring);
memcpy (newstring, copy . cstring, newlen);
allocated = newlen;
cstring = newstring;
current_length = newlen - 1;
}
// TiXmlString = operator. Safe when assign own content
void TiXmlString ::operator = (const TCHAR * content)
{
unsigned newlen;
TCHAR * newstring;
if (! content)
{
empty_it ();
return;
}
newlen = lstrlen (content) + 1;
newstring = new TCHAR [newlen];
// lstrcpy (newstring, content);
memcpy (newstring, content, newlen);
empty_it ();
allocated = newlen;
cstring = newstring;
current_length = newlen - 1;
}
// = operator. Safe when assign own content
void TiXmlString ::operator = (const TiXmlString & copy)
{
unsigned newlen;
TCHAR * newstring;
if (! copy . length ())
{
empty_it ();
return;
}
newlen = copy . length () + 1;
newstring = new TCHAR [newlen];
// lstrcpy (newstring, copy . c_str ());
memcpy (newstring, copy . c_str (), newlen);
empty_it ();
allocated = newlen;
cstring = newstring;
current_length = newlen - 1;
}
//// Checks if a TiXmlString contains only whitespace (same rules as isspace)
//bool TiXmlString::isblank () const
//{
// TCHAR * lookup;
// for (lookup = cstring; * lookup; lookup++)
// if (! isspace (* lookup))
// return false;
// return true;
//}
// append a const TCHAR * to an existing TiXmlString
void TiXmlString::append( const TCHAR* str, int len )
{
TCHAR * new_string;
unsigned new_alloc, new_size, size_suffix;
size_suffix = lstrlen (str);
if (len < (int) size_suffix)
size_suffix = len;
if (! size_suffix)
return;
new_size = length () + size_suffix + 1;
// check if we need to expand
if (new_size > allocated)
{
// compute new size
new_alloc = assign_new_size (new_size);
// allocate new buffer
new_string = new TCHAR [new_alloc];
new_string [0] = 0;
// copy the previous allocated buffer into this one
if (allocated && cstring)
// lstrcpy (new_string, cstring);
memcpy (new_string, cstring, length ());
// append the suffix. It does exist, otherwize we wouldn't be expanding
// strncat (new_string, str, len);
memcpy (new_string + length (),
str,
size_suffix);
// return previsously allocated buffer if any
if (allocated && cstring)
delete [] cstring;
// update member variables
cstring = new_string;
allocated = new_alloc;
}
else
{
// we know we can safely append the new generic_string
// strncat (cstring, str, len);
memcpy (cstring + length (),
str,
size_suffix);
}
current_length = new_size - 1;
cstring [current_length] = 0;
}
// append a const TCHAR * to an existing TiXmlString
void TiXmlString::append( const TCHAR * suffix )
{
TCHAR * new_string;
unsigned new_alloc, new_size;
new_size = length () + lstrlen (suffix) + 1;
// check if we need to expand
if (new_size > allocated)
{
// compute new size
new_alloc = assign_new_size (new_size);
// allocate new buffer
new_string = new TCHAR [new_alloc];
new_string [0] = 0;
// copy the previous allocated buffer into this one
if (allocated && cstring)
memcpy (new_string, cstring, 1 + length ());
// lstrcpy (new_string, cstring);
// append the suffix. It does exist, otherwize we wouldn't be expanding
// lstrcat (new_string, suffix);
memcpy (new_string + length (),
suffix,
lstrlen (suffix) + 1);
// return previsously allocated buffer if any
if (allocated && cstring)
delete [] cstring;
// update member variables
cstring = new_string;
allocated = new_alloc;
}
else
{
// we know we can safely append the new generic_string
// lstrcat (cstring, suffix);
memcpy (cstring + length (),
suffix,
lstrlen (suffix) + 1);
}
current_length = new_size - 1;
}
// Check for TiXmlString equuivalence
//bool TiXmlString::operator == (const TiXmlString & compare) const
//{
// return (! lstrcmp (c_str (), compare . c_str ()));
//}
//unsigned TiXmlString::length () const
//{
// if (allocated)
// // return lstrlen (cstring);
// return current_length;
// return 0;
//}
unsigned TiXmlString::find (TCHAR tofind, unsigned offset) const
{
TCHAR * lookup;
if (offset >= length ())
return (unsigned) notfound;
for (lookup = cstring + offset; * lookup; lookup++)
if (* lookup == tofind)
return lookup - cstring;
return (unsigned) notfound;
}
bool TiXmlString::operator == (const TiXmlString & compare) const
{
if ( allocated && compare.allocated )
{
assert( cstring );
assert( compare.cstring );
return ( lstrcmp( cstring, compare.cstring ) == 0 );
}
return false;
}
bool TiXmlString::operator < (const TiXmlString & compare) const
{
if ( allocated && compare.allocated )
{
assert( cstring );
assert( compare.cstring );
return ( lstrcmp( cstring, compare.cstring ) > 0 );
}
return false;
}
bool TiXmlString::operator > (const TiXmlString & compare) const
{
if ( allocated && compare.allocated )
{
assert( cstring );
assert( compare.cstring );
return ( lstrcmp( cstring, compare.cstring ) < 0 );
}
return false;
}
#endif // TIXML_USE_STL