/////////////////////////////////////////////////////////////////////////////
// Name: string.cpp
// Purpose: wxString class
-// Author: Vadim Zeitlin
+// Author: Vadim Zeitlin, Ryan Norton
// Modified by:
// Created: 29/01/98
// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
+// (c) 2004 Ryan Norton <wxprojects@comcast.net>
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include <string.h>
#include <stdlib.h>
+#ifndef __WXMSW__
+#include <errno.h>
+#endif
+
#ifdef __SALFORDC__
#include <clib.h>
#endif
// static class variables definition
// ---------------------------------------------------------------------------
-#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
-// must define this static for VA or else you get multiply defined symbols
-// everywhere
-const unsigned int wxSTRING_MAXLEN = UINT_MAX - 100;
-#endif // Visual Age
-
#if !wxUSE_STL
- const size_t wxStringBase::npos = wxSTRING_MAXLEN;
+ //According to STL _must_ be a -1 size_t
+ const size_t wxStringBase::npos = (size_t) -1;
#endif
// ----------------------------------------------------------------------------
wxFAIL_MSG( _T("out of memory in wxStringBase::InitWith") );
return;
}
- wxMemcpy(m_pchData, psz + nPos, nLength);
+ wxTmemcpy(m_pchData, psz + nPos, nLength);
}
}
// allocation failures are handled by the caller
return false;
}
- wxMemcpy(m_pchData, pData->data(), nLen);
+ wxTmemcpy(m_pchData, pData->data(), nLen);
}
wxASSERT( !GetStringData()->IsShared() ); // we must be the only owner
pData->nAllocLength = nLen;
m_pchData = pData->data();
}
-
- // now we have enough space, just update the string length
- pData->nDataLength = nLen;
}
wxASSERT( !GetStringData()->IsShared() ); // we must be the only owner
+ // it doesn't really matter what the string length is as it's going to be
+ // overwritten later but, for extra safety, set it to 0 for now as we may
+ // have some junk in m_pchData
+ GetStringData()->nDataLength = 0;
+
return true;
}
{
size_type len = length();
- if ( !CopyBeforeWrite() || !Alloc(len + n) ) {
+ if ( !Alloc(len + n) || !CopyBeforeWrite() ) {
wxFAIL_MSG( _T("out of memory in wxStringBase::append") );
}
GetStringData()->nDataLength = len + n;
// allocation failure handled by caller
return false;
}
- memcpy(m_pchData, pData->data(), nOldLen*sizeof(wxChar));
+ // +1 to copy the terminator, too
+ memcpy(m_pchData, pData->data(), (nOldLen+1)*sizeof(wxChar));
+ GetStringData()->nDataLength = nOldLen;
}
else {
nLen += EXTRA_ALLOC;
if ( n == npos ) n = wxStrlen(sz);
if ( n == 0 ) return *this;
- if ( !CopyBeforeWrite() || !Alloc(length() + n) ) {
+ if ( !Alloc(length() + n) || !CopyBeforeWrite() ) {
wxFAIL_MSG( _T("out of memory in wxStringBase::insert") );
}
wxASSERT( nStart <= length() );
//anchor
- const wxChar* p = (const wxChar*)wxMemchr(c_str() + nStart,
+ const wxChar* p = (const wxChar*)wxTmemchr(c_str() + nStart,
str.c_str()[0],
length() - nStart);
return npos;
while(p - c_str() + str.length() <= length() &&
- wxMemcmp(p, str.c_str(), str.length()) )
+ wxTmemcmp(p, str.c_str(), str.length()) )
{
+ //Previosly passed as the first argument to wxTmemchr,
+ //but C/C++ standard does not specify evaluation order
+ //of arguments to functions -
+ //http://embedded.com/showArticle.jhtml?articleID=9900607
+ ++p;
+
//anchor again
- p = (const wxChar*)wxMemchr(++p,
+ p = (const wxChar*)wxTmemchr(p,
str.c_str()[0],
length() - (p - c_str()));
{
wxASSERT( nStart <= length() );
- const wxChar *p = (const wxChar*)wxMemchr(c_str() + nStart, ch, length() - nStart);
+ const wxChar *p = (const wxChar*)wxTmemchr(c_str() + nStart, ch, length() - nStart);
return p == NULL ? npos : p - c_str();
}
const wxChar *cursor = c_str() + top;
do
{
- if ( wxMemcmp(cursor, str.c_str(),
+ if ( wxTmemcmp(cursor, str.c_str(),
str.length()) == 0 )
{
return cursor - c_str();
size_t i;
for(i = nStart; i < this->length(); ++i)
{
- if (wxMemchr(sz, *(c_str() + i), len))
+ if (wxTmemchr(sz, *(c_str() + i), len))
break;
}
for ( const wxChar *p = c_str() + nStart; p >= c_str(); --p )
{
- if ( wxMemchr(sz, *p, len) )
+ if ( wxTmemchr(sz, *p, len) )
return p - c_str();
}
size_t i;
for(i = nStart; i < this->length(); ++i)
{
- if (!wxMemchr(sz, *(c_str() + i), len))
+ if (!wxTmemchr(sz, *(c_str() + i), len))
break;
}
for ( const wxChar *p = c_str() + nStart; p >= c_str(); --p )
{
- if ( !wxMemchr(sz, *p,len) )
+ if ( !wxTmemchr(sz, *p,len) )
return p - c_str();
}
const wxChar* s2, size_t l2)
{
if( l1 == l2 )
- return wxMemcmp(s1, s2, l1);
+ return wxTmemcmp(s1, s2, l1);
else if( l1 < l2 )
{
- int ret = wxMemcmp(s1, s2, l1);
+ int ret = wxTmemcmp(s1, s2, l1);
return ret == 0 ? -1 : ret;
}
- else if( l1 > l2 )
+ else
{
- int ret = wxMemcmp(s1, s2, l2);
+ int ret = wxTmemcmp(s1, s2, l2);
return ret == 0 ? +1 : ret;
}
-
- wxFAIL; // must never get there
- return 0; // quiet compilers
}
int STRINGCLASS::compare(const wxStringBase& str) const
// wxString class core
// ===========================================================================
-// ---------------------------------------------------------------------------
-// common conversion routines
-// ---------------------------------------------------------------------------
-
-#if wxUSE_WCHAR_T
-
-//Convert a wide character string of a specified length
-//to a multi-byte character string, ignoring intermittent null characters
-//returns the actual length of the string
-inline size_t wxMbstr(char* szBuffer, const wchar_t* szString,
- size_t nStringLen, wxMBConv& conv)
-{
- const wchar_t* szEnd = szString + nStringLen + 1;
- const wchar_t* szPos = szString;
- const wchar_t* szStart = szPos;
-
- size_t nActualLength = 0;
-
- //Convert the string until the length() is reached, continuing the
- //loop every time a null character is reached
- while(szPos != szEnd)
- {
- wxASSERT(szPos < szEnd); //something is _really_ screwed up if this rings true
-
- //Get the length of the current (sub)string
- size_t nLen = conv.WC2MB(NULL, szPos, 0);
-
- //Invalid conversion?
- if( nLen == (size_t)-1 )
- {
- szBuffer[0] = '\0';
- return 0;
- }
-
-// wxASSERT(nLen != (size_t)-1); //should not be true! If it is system wctomb could be bad
-
- nActualLength += nLen + 1;
-
- wxASSERT( nActualLength <= (nStringLen<<2) + 1 ); //If this is true it means buffer overflow
-
- //Convert the current (sub)string
- if(conv.WC2MB(&szBuffer[szPos - szStart], szPos, nLen + 1) == (size_t)-1 )
- {
- //error - return empty buffer
- wxFAIL_MSG(wxT("Error converting wide-character string to a multi-byte string"));
- szBuffer[0] = '\0';
- return 0;
- }
-
- //Increment to next (sub)string
- //Note that we have to use wxWcslen here instead of nLen
- //here because XX2XX gives us the size of the output buffer,
- //not neccessarly the length of the string
- szPos += wxWcslen(szPos) + 1;
- }
-
- return nActualLength - 1; //success - return actual length
-}
-
-//Convert a multi-byte character string of a specified length
-//to a wide character string, ignoring intermittent null characters
-//returns the actual length
-inline size_t wxWcstr( wchar_t* szBuffer, const char* szString,
- size_t nStringLen, wxMBConv& conv)
-{
- const char* szEnd = szString + nStringLen + 1;
- const char* szPos = szString;
- const char* szStart = szPos;
-
- size_t nActualLength = 0;
-
- //Convert the string until the length() is reached, continuing the
- //loop every time a null character is reached
- while(szPos != szEnd)
- {
- wxASSERT(szPos < szEnd); //something is _really_ screwed up if this rings true
-
- //Get the length of the current (sub)string
- size_t nLen = conv.MB2WC(NULL, szPos, 0);
-
- //Invalid conversion?
- if( nLen == (size_t)-1 )
- {
- szBuffer[0] = '\0';
- return 0;
- }
-
-// wxASSERT(nLen != (size_t)-1); //If true, conversion was invalid, or system mbtowc could be bad
-
- nActualLength += nLen + 1;
-
- wxASSERT(nActualLength <= nStringLen + 1); //If this is true it means buffer overflow
-
- //Convert the current (sub)string
- if ( conv.MB2WC(&szBuffer[szPos - szStart], szPos, nLen + 1) == (size_t)-1 )
- {
- //error - return empty buffer
- wxFAIL_MSG(wxT("Error converting multi-byte string to a wide-character string"));
- szBuffer[0] = '\0';
- return 0;
- }
-
- //Increment to next (sub)string
- //Note that we have to use strlen here instead of nLen
- //here because XX2XX gives us the size of the output buffer,
- //not neccessarly the length of the string
- szPos += strlen(szPos) + 1;
- }
-
- return nActualLength - 1; //success - return actual length
-}
-
-#endif //wxUSE_WCHAR_T
-
// ---------------------------------------------------------------------------
// construction and conversion
// ---------------------------------------------------------------------------
nLen = 0;
}
+
// anything to do?
if ( (nLen != 0) && (nLen != (size_t)-1) )
{
- //When converting mb->wc it never inflates to more characters than the length
- wxStringBufferLength internalBuffer(*this, nLen + 1);
+ //Convert string
+ size_t nRealSize;
+ wxWCharBuffer theBuffer = conv.cMB2WC(psz, nLen, &nRealSize);
- //Do the actual conversion & Set the length of the buffer
- internalBuffer.SetLength(
- wxWcstr(internalBuffer, psz, nLen, conv)
- );
-/*
-wxWCharBuffer buffer(nLen + 1);
-
- //Convert the string
- size_t nActualLength = wxWcstr(buffer.data(), psz, nLen, conv);
- if ( !Alloc(nActualLength + 1) )
- {
- wxFAIL_MSG(wxT("Out of memory in wxString"));
- }
- else
- {
- //Copy the data
- assign(buffer.data(), nActualLength);
- }
-*/
+ //Copy
+ if (nRealSize)
+ assign( theBuffer.data() , nRealSize - 1 );
}
}
//Convert wxString in Unicode mode to a multi-byte string
const wxCharBuffer wxString::mb_str(wxMBConv& conv) const
{
- //FIXME: This may be invalid for UTF7 and other charsets
-
- //*4 is the worst case - for UTF8
- wxCharBuffer buffer((length() << 2) + 1);
-
- //Do the actual conversion (will return a blank string on error)
- wxMbstr(buffer.data(), (*this).c_str(), length(), conv);
-
- return buffer;
+ size_t dwOutSize;
+ return conv.cWC2MB(c_str(), length(), &dwOutSize);
}
#else // ANSI
// anything to do?
if ( (nLen != 0) && (nLen != (size_t)-1) )
{
- //FIXME: This may be invalid for UTF7 and other charsets
-
- //*4 is the worst case - for UTF8
- wxStringBufferLength internalBuffer(*this, (nLen << 2) + 1);
+ //Convert string
+ size_t nRealSize;
+ wxCharBuffer theBuffer = conv.cWC2MB(pwz, nLen, &nRealSize);
- //Do the actual conversion & Set the length of the buffer
- internalBuffer.SetLength(
- wxMbstr(internalBuffer, pwz, nLen, conv)
- );
+ //Copy
+ if (nRealSize)
+ assign( theBuffer.data() , nRealSize - 1 );
}
}
//mode is not enabled and wxUSE_WCHAR_T is enabled
const wxWCharBuffer wxString::wc_str(wxMBConv& conv) const
{
- //mb->wc never inflates to more than the length
- wxWCharBuffer buffer(length() + 1);
-
- //Do the actual conversion (will return a blank string on error)
- wxWcstr(buffer.data(), (*this).c_str(), length(), conv);
-
- return buffer;
+ size_t dwOutSize;
+ return conv.cMB2WC(c_str(), length(), &dwOutSize);
}
#endif // wxUSE_WCHAR_T
if ( !s.Alloc(wxStrlen(psz) + str.Len()) ) {
wxFAIL_MSG( _T("out of memory in wxString::operator+") );
}
- s = str;
+ s += str;
s += psz;
return s;
if(wxTolower(s1[i]) != wxTolower(s2[i]))
break;
}
- return i == l1 ? 0 : s1[i] < s2[i] ? -1 : 1;
+ return i == l1 ? 0 : wxTolower(s1[i]) < wxTolower(s2[i]) ? -1 : 1;
}
else if( l1 < l2 )
{
if(wxTolower(s1[i]) != wxTolower(s2[i]))
break;
}
- return i == l1 ? -1 : s1[i] < s2[i] ? -1 : 1;
+ return i == l1 ? -1 : wxTolower(s1[i]) < wxTolower(s2[i]) ? -1 : 1;
}
- else if( l1 > l2 )
+ else
{
for(i = 0; i < l2; ++i)
{
if(wxTolower(s1[i]) != wxTolower(s2[i]))
break;
}
- return i == l2 ? 1 : s1[i] < s2[i] ? -1 : 1;
+ return i == l2 ? 1 : wxTolower(s1[i]) < wxTolower(s2[i]) ? -1 : 1;
}
-
- wxFAIL; // must never get there
- return 0; // quiet compilers
}
int wxString::CmpNoCase(const wxString& s) const
// this will allocate enough space for the terminating NUL too
wxCharBuffer buffer(length());
- signed char *dest = (signed char *)buffer.data();
+
+ char *dest = buffer.data();
const wchar_t *pwc = c_str();
for ( ;; )
{
- *dest++ = *pwc > SCHAR_MAX ? wxT('_') : *pwc;
+ *dest++ = (char)(*pwc > SCHAR_MAX ? wxT('_') : *pwc);
// the output string can't have embedded NULs anyhow, so we can safely
// stop at first of them even if we do have any
wxString& wxString::Trim(bool bFromRight)
{
// first check if we're going to modify the string at all
- if ( !IsEmpty() &&
+ if ( !empty() &&
(
(bFromRight && wxSafeIsspace(GetChar(Len() - 1))) ||
(!bFromRight && wxSafeIsspace(GetChar(0u)))
// vsnprintf() may return either -1 (traditional Unix behaviour) or the
// total number of characters which would have been written if the
// buffer were large enough
- if ( len >= 0 && len <= size )
+ // also, it may return an errno may be something like EILSEQ,
+ // in which case we need to break out
+ if ( (len >= 0 && len <= size)
+ // No EOVERFLOW on Windows nor Palm 6.0 nor OpenVMS
+#if !defined(__WXMSW__) && !defined(__WXPALMOS__) && !defined( __VMS )
+ || errno != EOVERFLOW
+#endif
+ )
{
// ok, there was enough space
break;
return array;
}
+void wxArrayString::Remove(size_t nIndex, size_t nRemove)
+{
+ RemoveAt(nIndex, nRemove);
+}
+
#endif // WXWIN_COMPATIBILITY_2_4
// searches the array for an item (forward or backwards)
projects / wxWidgets.git / blobdiff