added inline plural form of wxGetTranslation to wxUSE_INTL=0 case for use with non...

[wxWidgets.git] / src / common / string.cpp

diff --git a/src/common/string.cpp b/src/common/string.cpp
index 9513b690746de466300545f5448fa50c3aff4088..717ce0b52c8cd0e754c9e2af7f4387b85464d74f 100644 (file)
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -10,13 +10,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-/*
- * About ref counting:
- *  1) all empty strings use g_strEmpty, nRefs = -1 (set in Init())
- *  2) AllocBuffer() sets nRefs to 1, Lock() increments it by one
- *  3) Unlock() decrements nRefs and frees memory if it goes to 0
- */
-

 // ===========================================================================
 // headers, declarations, constants
 // ===========================================================================
 // ===========================================================================
 // headers, declarations, constants
 // ===========================================================================


@@ -30,6 +23,7 @@
 
 #ifndef WX_PRECOMP
     #include "wx/string.h"
 
 #ifndef WX_PRECOMP
     #include "wx/string.h"

+    #include "wx/wxcrtvararg.h"

 #endif
 
 #include <ctype.h>
 #endif
 
 #include <ctype.h>


@@ -80,9 +74,9 @@ wxSTD ostream& operator<<(wxSTD ostream& os, const wxCStrData& str)
 {
 // FIXME-UTF8: always, not only if wxUSE_UNICODE
 #if wxUSE_UNICODE && !defined(__BORLANDC__)
 {
 // FIXME-UTF8: always, not only if wxUSE_UNICODE
 #if wxUSE_UNICODE && !defined(__BORLANDC__)

-    return os << str.AsWChar();
+    return os << (const wchar_t*)str.AsWCharBuf();

 #else
 #else

-    return os << str.AsChar();
+    return os << (const char*)str.AsCharBuf();

 #endif
 }
 
 #endif
 }
 


@@ -105,6 +99,38 @@ wxSTD ostream& operator<<(wxSTD ostream& os, const wxWCharBuffer& str)
 
 #endif // wxUSE_STD_IOSTREAM
 
 
 #endif // wxUSE_STD_IOSTREAM
 

+// ===========================================================================
+// wxString class core
+// ===========================================================================
+
+#if wxUSE_UNICODE_UTF8
+
+void wxString::PosLenToImpl(size_t pos, size_t len,
+                            size_t *implPos, size_t *implLen) const
+{
+    if ( pos == npos )
+        *implPos = npos;
+    else
+    {
+        const_iterator i = begin() + pos;
+        *implPos = wxStringImpl::const_iterator(i.impl()) - m_impl.begin();
+        if ( len == npos )
+            *implLen = npos;
+        else
+        {
+            // too large length is interpreted as "to the end of the string"
+            // FIXME-UTF8: verify this is the case in std::string, assert
+            // otherwise
+            if ( pos + len > length() )
+                len = length() - pos;
+
+            *implLen = (i + len).impl() - i.impl();
+        }
+    }
+}
+
+#endif // wxUSE_UNICODE_UTF8
+

 // ----------------------------------------------------------------------------
 // wxCStrData converted strings caching
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxCStrData converted strings caching
 // ----------------------------------------------------------------------------


@@ -254,14 +280,14 @@ const wchar_t* wxCStrData::AsWChar() const
 // construction and conversion
 // ---------------------------------------------------------------------------
 
 // construction and conversion
 // ---------------------------------------------------------------------------
 

-#if wxUSE_UNICODE
+#if wxUSE_UNICODE_WCHAR

 /* static */
 wxString::SubstrBufFromMB wxString::ConvertStr(const char *psz, size_t nLength,
                                                const wxMBConv& conv)
 {
     // anything to do?
     if ( !psz || nLength == 0 )
 /* static */
 wxString::SubstrBufFromMB wxString::ConvertStr(const char *psz, size_t nLength,
                                                const wxMBConv& conv)
 {
     // anything to do?
     if ( !psz || nLength == 0 )

-        return SubstrBufFromMB();
+        return SubstrBufFromMB(L"", 0);

 
     if ( nLength == npos )
         nLength = wxNO_LEN;
 
     if ( nLength == npos )
         nLength = wxNO_LEN;


@@ -269,18 +295,51 @@ wxString::SubstrBufFromMB wxString::ConvertStr(const char *psz, size_t nLength,
     size_t wcLen;
     wxWCharBuffer wcBuf(conv.cMB2WC(psz, nLength, &wcLen));
     if ( !wcLen )
     size_t wcLen;
     wxWCharBuffer wcBuf(conv.cMB2WC(psz, nLength, &wcLen));
     if ( !wcLen )

-        return SubstrBufFromMB();
+        return SubstrBufFromMB(_T(""), 0);

     else
         return SubstrBufFromMB(wcBuf, wcLen);
 }
     else
         return SubstrBufFromMB(wcBuf, wcLen);
 }

-#else
+#endif // wxUSE_UNICODE_WCHAR
+
+#if wxUSE_UNICODE_UTF8
+/* static */
+wxString::SubstrBufFromMB wxString::ConvertStr(const char *psz, size_t nLength,
+                                               const wxMBConv& conv)
+{
+    // FIXME-UTF8: return as-is without copying under UTF8 locale, return
+    //             converted string under other locales - needs wxCharBuffer
+    //             changes
+
+    // anything to do?
+    if ( !psz || nLength == 0 )
+        return SubstrBufFromMB("", 0);
+
+    if ( nLength == npos )
+        nLength = wxNO_LEN;
+
+    // first convert to wide string:
+    size_t wcLen;
+    wxWCharBuffer wcBuf(conv.cMB2WC(psz, nLength, &wcLen));
+    if ( !wcLen )
+        return SubstrBufFromMB("", 0);
+
+    // and then to UTF-8:
+    SubstrBufFromMB buf(ConvertStr(wcBuf, wcLen, wxConvUTF8));
+    // widechar -> UTF-8 conversion isn't supposed to ever fail:
+    wxASSERT_MSG( buf.data, _T("conversion to UTF-8 failed") );
+
+    return buf;
+}
+#endif // wxUSE_UNICODE_UTF8
+
+#if wxUSE_UNICODE_UTF8 || !wxUSE_UNICODE

 /* static */
 wxString::SubstrBufFromWC wxString::ConvertStr(const wchar_t *pwz, size_t nLength,
                                                const wxMBConv& conv)
 {
     // anything to do?
     if ( !pwz || nLength == 0 )
 /* static */
 wxString::SubstrBufFromWC wxString::ConvertStr(const wchar_t *pwz, size_t nLength,
                                                const wxMBConv& conv)
 {
     // anything to do?
     if ( !pwz || nLength == 0 )

-        return SubstrBufFromWC();
+        return SubstrBufFromWC("", 0);

 
     if ( nLength == npos )
         nLength = wxNO_LEN;
 
     if ( nLength == npos )
         nLength = wxNO_LEN;


@@ -288,34 +347,56 @@ wxString::SubstrBufFromWC wxString::ConvertStr(const wchar_t *pwz, size_t nLengt
     size_t mbLen;
     wxCharBuffer mbBuf(conv.cWC2MB(pwz, nLength, &mbLen));
     if ( !mbLen )
     size_t mbLen;
     wxCharBuffer mbBuf(conv.cWC2MB(pwz, nLength, &mbLen));
     if ( !mbLen )

-        return SubstrBufFromWC();
+        return SubstrBufFromWC("", 0);

     else
         return SubstrBufFromWC(mbBuf, mbLen);
 }
     else
         return SubstrBufFromWC(mbBuf, mbLen);
 }

-#endif
+#endif // wxUSE_UNICODE_UTF8 || !wxUSE_UNICODE

 
 
 
 

-#if wxUSE_UNICODE
+#if wxUSE_UNICODE_WCHAR

 
 //Convert wxString in Unicode mode to a multi-byte string
 const wxCharBuffer wxString::mb_str(const wxMBConv& conv) const
 {
 
 //Convert wxString in Unicode mode to a multi-byte string
 const wxCharBuffer wxString::mb_str(const wxMBConv& conv) const
 {

-    return conv.cWC2MB(c_str(), length() + 1 /* size, not length */, NULL);
+    return conv.cWC2MB(wx_str(), length() + 1 /* size, not length */, NULL);

 }
 
 }
 

-#else // ANSI
+#elif wxUSE_UNICODE_UTF8
+
+const wxWCharBuffer wxString::wc_str() const
+{
+    return wxConvUTF8.cMB2WC(m_impl.c_str(),
+                             m_impl.length() + 1 /* size, not length */,
+                             NULL);
+}
+
+const wxCharBuffer wxString::mb_str(const wxMBConv& conv) const
+{
+    // FIXME-UTF8: optimize the case when conv==wxConvUTF8 or wxConvLibc
+    //             under UTF8 locale
+    // FIXME-UTF8: use wc_str() here once we have buffers with length
+
+    size_t wcLen;
+    wxWCharBuffer wcBuf(
+            wxConvUTF8.cMB2WC(m_impl.c_str(),
+                              m_impl.length() + 1 /* size, not length */,
+                              &wcLen));
+    if ( !wcLen )
+        return wxCharBuffer("");
+
+    return conv.cWC2MB(wcBuf, wcLen, NULL);
+}

 
 

-#if wxUSE_WCHAR_T
+#else // ANSI

 
 //Converts this string to a wide character string if unicode
 //mode is not enabled and wxUSE_WCHAR_T is enabled
 const wxWCharBuffer wxString::wc_str(const wxMBConv& conv) const
 {
 
 //Converts this string to a wide character string if unicode
 //mode is not enabled and wxUSE_WCHAR_T is enabled
 const wxWCharBuffer wxString::wc_str(const wxMBConv& conv) const
 {

-    return conv.cMB2WC(c_str(), length() + 1 /* size, not length */, NULL);
+    return conv.cMB2WC(wx_str(), length() + 1 /* size, not length */, NULL);

 }
 
 }
 

-#endif // wxUSE_WCHAR_T
-

 #endif // Unicode/ANSI
 
 // shrink to minimal size (releasing extra memory)
 #endif // Unicode/ANSI
 
 // shrink to minimal size (releasing extra memory)


@@ -328,7 +409,7 @@ bool wxString::Shrink()
 
 // deprecated compatibility code:
 #if WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
 
 // deprecated compatibility code:
 #if WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8

-wxChar *wxString::GetWriteBuf(size_t nLen)
+wxStringCharType *wxString::GetWriteBuf(size_t nLen)

 {
     return DoGetWriteBuf(nLen);
 }
 {
     return DoGetWriteBuf(nLen);
 }


@@ -874,19 +955,24 @@ wxString wxString::FromAscii(const char *ascii)
     if (!ascii)
        return wxEmptyString;
 
     if (!ascii)
        return wxEmptyString;
 

-    size_t len = strlen( ascii );
+    size_t len = strlen(ascii);

     wxString res;
 
     if ( len )
     {
     wxString res;
 
     if ( len )
     {

-        wxStringBuffer buf(res, len);
-
-        wchar_t *dest = buf;
+        wxImplStringBuffer buf(res, len);
+        wxStringCharType *dest = buf;

 
         for ( ;; )
         {
 
         for ( ;; )
         {

-           if ( (*dest++ = (wchar_t)(unsigned char)*ascii++) == L'\0' )
-               break;
+            unsigned char c = (unsigned char)*ascii++;
+            wxASSERT_MSG( c < 0x80,
+                          _T("Non-ASCII value passed to FromAscii().") );
+
+            *dest++ = (wchar_t)c;
+
+            if ( c == '\0' )
+                break;

         }
     }
 
         }
     }
 


@@ -897,35 +983,36 @@ wxString wxString::FromAscii(const char ascii)
 {
     // What do we do with '\0' ?
 
 {
     // What do we do with '\0' ?
 

-    wxString res;
-    res += (wchar_t)(unsigned char) ascii;
+    unsigned char c = (unsigned char)ascii;

 
 

-    return res;
+    wxASSERT_MSG( c < 0x80, _T("Non-ASCII value passed to FromAscii().") );
+
+    // NB: the cast to wchar_t causes interpretation of 'ascii' as Latin1 value
+    return wxString(wxUniChar((wchar_t)c));

 }
 
 const wxCharBuffer wxString::ToAscii() const
 {
     // this will allocate enough space for the terminating NUL too
     wxCharBuffer buffer(length());
 }
 
 const wxCharBuffer wxString::ToAscii() const
 {
     // this will allocate enough space for the terminating NUL too
     wxCharBuffer buffer(length());

-
-

     char *dest = buffer.data();
 
     char *dest = buffer.data();
 

-    const wchar_t *pwc = c_str();
-    for ( ;; )
+    for ( const_iterator i = begin(); i != end(); ++i )

     {
     {

-        *dest++ = (char)(*pwc > SCHAR_MAX ? wxT('_') : *pwc);
+        wxUniChar c(*i);
+        // FIXME-UTF8: unify substituted char ('_') with wxUniChar ('?')
+        *dest++ = c.IsAscii() ? (char)c : '_';

 
         // the output string can't have embedded NULs anyhow, so we can safely
         // stop at first of them even if we do have any
 
         // the output string can't have embedded NULs anyhow, so we can safely
         // stop at first of them even if we do have any

-        if ( !*pwc++ )
+        if ( !c )

             break;
     }
 
     return buffer;
 }
 
             break;
     }
 
     return buffer;
 }
 

-#endif // Unicode
+#endif // wxUSE_UNICODE

 
 // extract string of length nCount starting at nFirst
 wxString wxString::Mid(size_t nFirst, size_t nCount) const
 
 // extract string of length nCount starting at nFirst
 wxString wxString::Mid(size_t nFirst, size_t nCount) const


@@ -996,7 +1083,8 @@ bool wxString::EndsWith(const wxChar *suffix, wxString *rest) const
     wxASSERT_MSG( suffix, _T("invalid parameter in wxString::EndssWith") );
 
     int start = length() - wxStrlen(suffix);
     wxASSERT_MSG( suffix, _T("invalid parameter in wxString::EndssWith") );
 
     int start = length() - wxStrlen(suffix);

-    if ( start < 0 || wxStrcmp(wx_str() + start, suffix) != 0 )
+
+    if ( start < 0 || compare(start, npos, suffix) != 0 )

         return false;
 
     if ( rest )
         return false;
 
     if ( rest )


@@ -1127,34 +1215,43 @@ size_t wxString::Replace(const wxString& strOld,
 
 bool wxString::IsAscii() const
 {
 
 bool wxString::IsAscii() const
 {

-  const wxChar *s = (const wxChar*) *this;
-  while(*s){
-    if(!isascii(*s)) return(false);
-    s++;
-  }
-  return(true);
+    for ( const_iterator i = begin(); i != end(); ++i )
+    {
+        if ( !(*i).IsAscii() )
+            return false;
+    }
+
+    return true;

 }
 
 bool wxString::IsWord() const
 {
 }
 
 bool wxString::IsWord() const
 {

-  const wxChar *s = (const wxChar*) *this;
-  while(*s){
-    if(!wxIsalpha(*s)) return(false);
-    s++;
-  }
-  return(true);
+    for ( const_iterator i = begin(); i != end(); ++i )
+    {
+        if ( !wxIsalpha(*i) )
+            return false;
+    }
+
+    return true;

 }
 
 bool wxString::IsNumber() const
 {
 }
 
 bool wxString::IsNumber() const
 {

-  const wxChar *s = (const wxChar*) *this;
-  if (wxStrlen(s))
-     if ((s[0] == wxT('-')) || (s[0] == wxT('+'))) s++;
-  while(*s){
-    if(!wxIsdigit(*s)) return(false);
-    s++;
-  }
-  return(true);
+    if ( empty() )
+        return true;
+
+    const_iterator i = begin();
+
+    if ( *i == _T('-') || *i == _T('+') )
+        ++i;
+
+    for ( ; i != end(); ++i )
+    {
+        if ( !wxIsdigit(*i) )
+            return false;
+    }
+
+    return true;

 }
 
 wxString wxString::Strip(stripType w) const
 }
 
 wxString wxString::Strip(stripType w) const


@@ -1352,9 +1449,9 @@ bool wxString::ToDouble(double *val) const
 
 /* static */
 #ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
 
 /* static */
 #ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN

-wxString wxStringPrintfMixinBase::DoFormat(const wxChar *format, ...)
+wxString wxStringPrintfMixinBase::DoFormat(const wxString& format, ...)

 #else
 #else

-wxString wxString::DoFormat(const wxChar *format, ...)
+wxString wxString::DoFormat(const wxString& format, ...)

 #endif
 {
     va_list argptr;
 #endif
 {
     va_list argptr;


@@ -1377,9 +1474,9 @@ wxString wxString::FormatV(const wxString& format, va_list argptr)
 }
 
 #ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
 }
 
 #ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN

-int wxStringPrintfMixinBase::DoPrintf(const wxChar *format, ...)
+int wxStringPrintfMixinBase::DoPrintf(const wxString& format, ...)

 #else
 #else

-int wxString::DoPrintf(const wxChar *format, ...)
+int wxString::DoPrintf(const wxString& format, ...)

 #endif
 {
     va_list argptr;
 #endif
 {
     va_list argptr;


@@ -1401,14 +1498,27 @@ int wxString::DoPrintf(const wxChar *format, ...)
     return iLen;
 }
 
     return iLen;
 }
 

-int wxString::PrintfV(const wxString& format, va_list argptr)
+#if wxUSE_UNICODE_UTF8
+template<typename BufferType>
+#else
+// we only need one version in non-UTF8 builds and at least two Windows
+// compilers have problems with this function template, so use just one
+// normal function here
+#endif
+static int DoStringPrintfV(wxString& str,
+                           const wxString& format, va_list argptr)

 {
     int size = 1024;
 
     for ( ;; )
     {
 {
     int size = 1024;
 
     for ( ;; )
     {

-        wxStringBuffer tmp(*this, size + 1);
+#if wxUSE_UNICODE_UTF8
+        BufferType tmp(str, size + 1);
+        typename BufferType::CharType *buf = tmp;
+#else
+        wxStringBuffer tmp(str, size + 1);

         wxChar *buf = tmp;
         wxChar *buf = tmp;

+#endif

 
         if ( !buf )
         {
 
         if ( !buf )
         {


@@ -1464,9 +1574,37 @@ int wxString::PrintfV(const wxString& format, va_list argptr)
     }
 
     // we could have overshot
     }
 
     // we could have overshot

-    Shrink();
+    str.Shrink();
+
+    return str.length();
+}
+
+int wxString::PrintfV(const wxString& format, va_list argptr)
+{
+    va_list argcopy;
+    wxVaCopy(argcopy, argptr);
+
+#if wxUSE_UNICODE_UTF8
+    #if wxUSE_STL_BASED_WXSTRING
+        typedef wxStringTypeBuffer<char> Utf8Buffer;
+    #else
+        typedef wxImplStringBuffer Utf8Buffer;
+    #endif
+#endif

 
 

-    return length();
+#if wxUSE_UTF8_LOCALE_ONLY
+    return DoStringPrintfV<Utf8Buffer>(*this, format, argcopy);
+#else
+    #if wxUSE_UNICODE_UTF8
+    if ( wxLocaleIsUtf8 )
+        return DoStringPrintfV<Utf8Buffer>(*this, format, argcopy);
+    else
+        // wxChar* version
+        return DoStringPrintfV<wxStringBuffer>(*this, format, argcopy);
+    #else
+        return DoStringPrintfV(*this, format, argcopy);
+    #endif // UTF8/WCHAR
+#endif

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------