X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/55d99c7a77789ff4904bf96eddca3715eb5af9b9..7198c3368055d88249a338eb33b21f051f674806:/src/common/txtstrm.cpp

diff --git a/src/common/txtstrm.cpp b/src/common/txtstrm.cpp
index 032474919c..9408345960 100644
--- a/src/common/txtstrm.cpp
+++ b/src/common/txtstrm.cpp
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        txtstrm.cpp
+// Name:        src/common/txtstrm.cpp
 // Purpose:     Text stream classes
 // Author:      Guilhem Lavaux
 // Modified by:
@@ -9,10 +9,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-#pragma implementation "txtstrm.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -23,48 +19,113 @@
 #if wxUSE_STREAMS
 
 #include "wx/txtstrm.h"
-#include <ctype.h>
-
 
-// ----------------------------------------------------------------------------
-// constants
-// ----------------------------------------------------------------------------
+#ifndef WX_PRECOMP
+    #include "wx/crt.h"
+#endif
 
-// Unix: "\n"
-// Dos:  "\r\n"
-// Mac:  "\r"
+#include <ctype.h>
 
 // ----------------------------------------------------------------------------
 // wxTextInputStream
 // ----------------------------------------------------------------------------
 
 #if wxUSE_UNICODE
-wxTextInputStream::wxTextInputStream(wxInputStream &s, const wxString &sep, wxMBConv& conv)
-  : m_input(s), m_separators(sep), m_conv(conv)
+wxTextInputStream::wxTextInputStream(wxInputStream &s,
+                                     const wxString &sep,
+                                     const wxMBConv& conv)
+  : m_input(s), m_separators(sep), m_conv(conv.Clone())
 {
+    memset((void*)m_lastBytes, 0, 10);
 }
 #else
 wxTextInputStream::wxTextInputStream(wxInputStream &s, const wxString &sep)
   : m_input(s), m_separators(sep)
 {
+    memset((void*)m_lastBytes, 0, 10);
 }
 #endif
 
 wxTextInputStream::~wxTextInputStream()
 {
+#if wxUSE_UNICODE
+    delete m_conv;
+#endif // wxUSE_UNICODE
+}
+
+void wxTextInputStream::UngetLast()
+{
+    size_t byteCount = 0;
+    while(m_lastBytes[byteCount]) // pseudo ANSI strlen (even for Unicode!)
+        byteCount++;
+    m_input.Ungetch(m_lastBytes, byteCount);
+    memset((void*)m_lastBytes, 0, 10);
+}
+
+wxChar wxTextInputStream::NextChar()
+{
+#if wxUSE_UNICODE
+    wxChar wbuf[2];
+    memset((void*)m_lastBytes, 0, 10);
+    for(size_t inlen = 0; inlen < 9; inlen++)
+    {
+        // actually read the next character
+        m_lastBytes[inlen] = m_input.GetC();
+
+        if(m_input.LastRead() <= 0)
+            return wxEOT;
+
+        switch ( m_conv->ToWChar(wbuf, WXSIZEOF(wbuf), m_lastBytes, inlen + 1) )
+        {
+            case 0:
+                // this is a bug in converter object as it should either fail
+                // or decode non-empty string to something non-empty
+                wxFAIL_MSG("ToWChar() can't return 0 for non-empty input");
+                break;
+
+            case wxCONV_FAILED:
+                // the buffer probably doesn't contain enough bytes to decode
+                // as a complete character, try with more bytes
+                break;
+
+            default:
+                // if we couldn't decode a single character during the last
+                // loop iteration we shouldn't be able to decode 2 or more of
+                // them with an extra single byte, something fishy is going on
+                wxFAIL_MSG("unexpected decoding result");
+                // fall through nevertheless and return at least something
+
+            case 1:
+                // we finally decoded a character
+                return wbuf[0];
+        }
+    }
+
+    // there should be no encoding which requires more than nine bytes for one
+    // character so something must be wrong with our conversion but we have no
+    // way to signal it from here
+    return wxEOT;
+#else
+    m_lastBytes[0] = m_input.GetC();
+
+    if(m_input.LastRead() <= 0)
+        return wxEOT;
+
+    return m_lastBytes[0];
+#endif
+
 }
 
 wxChar wxTextInputStream::NextNonSeparators()
 {
-    wxChar c = (wxChar) 0;
     for (;;)
     {
-        if (!m_input) return (wxChar) 0;
-        c = m_input.GetC();
+        wxChar c = NextChar();
+        if (c == wxEOT) return (wxChar) 0;
 
         if (c != wxT('\n') &&
             c != wxT('\r') &&
-            !m_separators.Contains(c))
+            m_separators.Find(c) < 0)
           return c;
     }
 
@@ -72,194 +133,88 @@ wxChar wxTextInputStream::NextNonSeparators()
 
 bool wxTextInputStream::EatEOL(const wxChar &c)
 {
-    if (c == wxT('\n')) return TRUE; // eat on UNIX
+    if (c == wxT('\n')) return true; // eat on UNIX
 
     if (c == wxT('\r')) // eat on both Mac and DOS
     {
-        if (!m_input) return TRUE;
-        wxChar c2 = m_input.GetC();
+        wxChar c2 = NextChar();
+        if(c2 == wxEOT) return true; // end of stream reached, had enough :-)
 
-        if (c2 != wxT('\n'))  m_input.Ungetch( c2 ); // Don't eat on Mac
-        return TRUE;
+        if (c2 != wxT('\n')) UngetLast(); // Don't eat on Mac
+        return true;
     }
 
-    return FALSE;
+    return false;
 }
 
-void wxTextInputStream::SkipIfEndOfLine( wxChar c )
+wxUint32 wxTextInputStream::Read32(int base)
 {
-    if (EatEOL(c)) return;
-    else m_input.Ungetch( c );  // no line terminator
+    wxASSERT_MSG( !base || (base > 1 && base <= 36), wxT("invalid base") );
+    if(!m_input) return 0;
+
+    wxString word = ReadWord();
+    if(word.empty())
+        return 0;
+    return wxStrtoul(word.c_str(), 0, base);
 }
 
-wxUint32 wxTextInputStream::Read32()
+wxUint16 wxTextInputStream::Read16(int base)
 {
-    /* I only implemented a simple integer parser */
-    // VZ: what about using strtol()?? (TODO)
+    return (wxUint16)Read32(base);
+}
 
-    int sign;
-    wxInt32 i;
+wxUint8 wxTextInputStream::Read8(int base)
+{
+    return (wxUint8)Read32(base);
+}
 
-    if (!m_input) return 0;
-    int c = NextNonSeparators();
-    if (c==(wxChar)0) return 0;
+wxInt32 wxTextInputStream::Read32S(int base)
+{
+    wxASSERT_MSG( !base || (base > 1 && base <= 36), wxT("invalid base") );
+    if(!m_input) return 0;
 
-    i = 0;
-    if (! (c == wxT('-') || c == wxT('+') || isdigit(c)) )
-    {
-        m_input.Ungetch(c);
+    wxString word = ReadWord();
+    if(word.empty())
         return 0;
-    }
-
-    if (c == wxT('-'))
-    {
-        sign = -1;
-        c = m_input.GetC();
-    } else
-    if (c == wxT('+'))
-    {
-        sign = 1;
-        c = m_input.GetC();
-    } else
-    {
-        sign = 1;
-    }
-
-    while (isdigit(c))
-    {
-        i = i*10 + (c - (int)wxT('0'));
-        c = m_input.GetC();
-    }
-
-    SkipIfEndOfLine( c );
-
-    i *= sign;
-
-    return (wxUint32)i;
+    return wxStrtol(word.c_str(), 0, base);
 }
 
-wxUint16 wxTextInputStream::Read16()
+wxInt16 wxTextInputStream::Read16S(int base)
 {
-    return (wxUint16)Read32();
+    return (wxInt16)Read32S(base);
 }
 
-wxUint8 wxTextInputStream::Read8()
+wxInt8 wxTextInputStream::Read8S(int base)
 {
-    return (wxUint8)Read32();
+    return (wxInt8)Read32S(base);
 }
 
 double wxTextInputStream::ReadDouble()
 {
-    /* I only implemented a simple float parser
-     * VZ: what about using strtod()?? (TODO)
-     */
-
-    double f;
-    int theSign;
-
-    if (!m_input)
-        return 0;
-
-    int c = NextNonSeparators();
-    if (c==(wxChar)0) return 0;
-
-    f = 0.0;
-    if (! (c == wxT('.') || c == wxT(',') || c == wxT('-') || c == wxT('+') || isdigit(c)) )
-    {
-        m_input.Ungetch(c);
+    if(!m_input) return 0;
+    wxString word = ReadWord();
+    if(word.empty())
         return 0;
-    }
-
-    if (c == wxT('-'))
-    {
-        theSign = -1;
-        c = m_input.GetC();
-    } else
-    if (c == wxT('+'))
-    {
-        theSign = 1;
-        c = m_input.GetC();
-    }
-    else
-    {
-        theSign = 1;
-    }
-
-    while (isdigit(c))
-    {
-        f = f*10 + (c - wxT('0'));
-        c = m_input.GetC();
-    }
-
-    if (c == wxT('.') || c == wxT(','))
-    {
-        double f_multiplicator = (double) 0.1;
-
-        c = m_input.GetC();
-
-        while (isdigit(c))
-        {
-            f += (c-wxT('0'))*f_multiplicator;
-            f_multiplicator /= 10;
-            c = m_input.GetC();
-        }
-
-        if (c == wxT('e'))
-        {
-            double f_multiplicator = 0.0;
-            int i, e;
-
-            c = m_input.GetC();
-
-            switch (c)
-            {
-                case wxT('-'): f_multiplicator = 0.1;  break;
-                case wxT('+'): f_multiplicator = 10.0; break;
-            }
-
-            e = Read8();  // why only max 256 ?
-
-            for (i=0;i<e;i++)
-                f *= f_multiplicator;
-        }
-        else
-            SkipIfEndOfLine( c );
-    }
-    else
-    {
-        m_input.Ungetch(c);
-    }
-
-    f *= theSign;
-    return f;
+    return wxStrtod(word.c_str(), 0);
 }
 
+#if WXWIN_COMPATIBILITY_2_6
+
 wxString wxTextInputStream::ReadString()
 {
     return ReadLine();
 }
 
+#endif // WXWIN_COMPATIBILITY_2_6
+
 wxString wxTextInputStream::ReadLine()
 {
     wxString line;
 
     while ( !m_input.Eof() )
     {
-#if wxUSE_UNICODE
-        // FIXME: this is only works for single byte encodings
-        // How-to read a single char in an unkown encoding???
-        char buf[10];
-        buf[0] = m_input.GetC();
-        buf[1] = 0;
-        
-        wxChar wbuf[2];
-        m_conv.MB2WC( wbuf, buf, 2 );
-        wxChar c = wbuf[0];
-#else
-        char c = m_input.GetC();
-#endif
-        
-        if ( !m_input )
+        wxChar c = NextChar();
+        if(c == wxEOT)
             break;
 
         if (EatEOL(c))
@@ -283,15 +238,14 @@ wxString wxTextInputStream::ReadWord()
         return word;
 
     word += c;
-    
+
     while ( !m_input.Eof() )
     {
-        c = m_input.GetC();
-        
-        if (!m_input)
+        c = NextChar();
+        if(c == wxEOT)
             break;
-            
-        if (m_separators.Contains(c))
+
+        if (m_separators.Find(c) >= 0)
             break;
 
         if (EatEOL(c))
@@ -311,13 +265,8 @@ wxTextInputStream& wxTextInputStream::operator>>(wxString& word)
 
 wxTextInputStream& wxTextInputStream::operator>>(char& c)
 {
-    if (!m_input)
-    {
-        c = 0;
-        return *this;
-    }
-
     c = m_input.GetC();
+    if(m_input.LastRead() <= 0) c = 0;
 
     if (EatEOL(c))
         c = '\n';
@@ -325,6 +274,17 @@ wxTextInputStream& wxTextInputStream::operator>>(char& c)
     return *this;
 }
 
+#if wxUSE_UNICODE && wxWCHAR_T_IS_REAL_TYPE
+
+wxTextInputStream& wxTextInputStream::operator>>(wchar_t& wc)
+{
+    wc = GetChar();
+
+    return *this;
+}
+
+#endif // wxUSE_UNICODE
+
 wxTextInputStream& wxTextInputStream::operator>>(wxInt16& i)
 {
     i = (wxInt16)Read16();
@@ -364,8 +324,10 @@ wxTextInputStream& wxTextInputStream::operator>>(float& f)
 
 
 #if wxUSE_UNICODE
-wxTextOutputStream::wxTextOutputStream(wxOutputStream& s, wxEOL mode, wxMBConv& conv)
-  : m_output(s), m_conv(conv)
+wxTextOutputStream::wxTextOutputStream(wxOutputStream& s,
+                                       wxEOL mode,
+                                       const wxMBConv& conv)
+  : m_output(s), m_conv(conv.Clone())
 #else
 wxTextOutputStream::wxTextOutputStream(wxOutputStream& s, wxEOL mode)
   : m_output(s)
@@ -376,8 +338,6 @@ wxTextOutputStream::wxTextOutputStream(wxOutputStream& s, wxEOL mode)
     {
 #if defined(__WXMSW__) || defined(__WXPM__)
         m_mode = wxEOL_DOS;
-#elif defined(__WXMAC__) && !defined(__DARWIN__)
-        m_mode = wxEOL_MAC;
 #else
         m_mode = wxEOL_UNIX;
 #endif
@@ -386,6 +346,9 @@ wxTextOutputStream::wxTextOutputStream(wxOutputStream& s, wxEOL mode)
 
 wxTextOutputStream::~wxTextOutputStream()
 {
+#if wxUSE_UNICODE
+    delete m_conv;
+#endif // wxUSE_UNICODE
 }
 
 void wxTextOutputStream::SetMode(wxEOL mode)
@@ -395,8 +358,6 @@ void wxTextOutputStream::SetMode(wxEOL mode)
     {
 #if defined(__WXMSW__) || defined(__WXPM__)
         m_mode = wxEOL_DOS;
-#elif defined(__WXMAC__) && !defined(__DARWIN__)
-        m_mode = wxEOL_MAC;
 #else
         m_mode = wxEOL_UNIX;
 #endif
@@ -414,7 +375,7 @@ void wxTextOutputStream::Write32(wxUint32 i)
 void wxTextOutputStream::Write16(wxUint16 i)
 {
     wxString str;
-    str.Printf(wxT("%u"), i);
+    str.Printf(wxT("%u"), (unsigned)i);
 
     WriteString(str);
 }
@@ -422,7 +383,7 @@ void wxTextOutputStream::Write16(wxUint16 i)
 void wxTextOutputStream::Write8(wxUint8 i)
 {
     wxString str;
-    str.Printf(wxT("%u"), i);
+    str.Printf(wxT("%u"), (unsigned)i);
 
     WriteString(str);
 }
@@ -450,15 +411,15 @@ void wxTextOutputStream::WriteString(const wxString& string)
             switch ( m_mode )
             {
                 case wxEOL_DOS:
-                    out << _T("\r\n");
+                    out << wxT("\r\n");
                     continue;
 
                 case wxEOL_MAC:
-                    out << _T('\r');
+                    out << wxT('\r');
                     continue;
 
                 default:
-                    wxFAIL_MSG( _T("unknown EOL mode in wxTextOutputStream") );
+                    wxFAIL_MSG( wxT("unknown EOL mode in wxTextOutputStream") );
                     // fall through
 
                 case wxEOL_UNIX:
@@ -468,23 +429,40 @@ void wxTextOutputStream::WriteString(const wxString& string)
         }
 
         out << c;
-   }
+    }
 
-    // We must not write the trailing NULL here
 #if wxUSE_UNICODE
-    wxCharBuffer buffer = m_conv.cWC2MB( out );
-    m_output.Write( (const char*) buffer, strlen( (const char*) buffer ) );
+    // FIXME-UTF8: use wxCharBufferWithLength if/when we have it
+    wxCharBuffer buffer = m_conv->cWC2MB(out.wc_str(), out.length(), &len);
+    m_output.Write(buffer, len);
 #else
     m_output.Write(out.c_str(), out.length() );
 #endif
 }
 
-wxTextOutputStream& wxTextOutputStream::operator<<(const wxChar *string)
+wxTextOutputStream& wxTextOutputStream::PutChar(wxChar c)
 {
-    WriteString( wxString(string) );
+#if wxUSE_UNICODE
+    WriteString( wxString(&c, *m_conv, 1) );
+#else
+    WriteString( wxString(&c, wxConvLocal, 1) );
+#endif
     return *this;
 }
 
+void wxTextOutputStream::Flush()
+{
+#if wxUSE_UNICODE
+    const size_t len = m_conv->FromWChar(NULL, 0, L"", 1);
+    if ( len > m_conv->GetMBNulLen() )
+    {
+        wxCharBuffer buf(len);
+        m_conv->FromWChar(buf.data(), len, L"", 1);
+        m_output.Write(buf, len - m_conv->GetMBNulLen());
+    }
+#endif // wxUSE_UNICODE
+}
+
 wxTextOutputStream& wxTextOutputStream::operator<<(const wxString& string)
 {
     WriteString( string );
@@ -494,10 +472,21 @@ wxTextOutputStream& wxTextOutputStream::operator<<(const wxString& string)
 wxTextOutputStream& wxTextOutputStream::operator<<(char c)
 {
     WriteString( wxString::FromAscii(c) );
-    
+
     return *this;
 }
 
+#if wxUSE_UNICODE && wxWCHAR_T_IS_REAL_TYPE
+
+wxTextOutputStream& wxTextOutputStream::operator<<(wchar_t wc)
+{
+    WriteString( wxString(&wc, *m_conv, 1) );
+
+    return *this;
+}
+
+#endif // wxUSE_UNICODE
+
 wxTextOutputStream& wxTextOutputStream::operator<<(wxInt16 c)
 {
     wxString str;
@@ -548,7 +537,7 @@ wxTextOutputStream& wxTextOutputStream::operator<<(float f)
 
 wxTextOutputStream &endl( wxTextOutputStream &stream )
 {
-    return stream << wxT('\n');
+    return stream.PutChar(wxT('\n'));
 }
 
 #endif