include/wx/txtstrm.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/txtstrm.h
   3 // Purpose:     Text stream classes
   4 // Author:      Guilhem Lavaux
   5 // Modified by:
   6 // Created:     28/06/1998
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Guilhem Lavaux
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_TXTSTREAM_H_
  13 #define _WX_TXTSTREAM_H_
  14
  15 #include "wx/stream.h"
  16 #include "wx/convauto.h"
  17
  18 #if wxUSE_STREAMS
  19
  20 class WXDLLIMPEXP_FWD_BASE wxTextInputStream;
  21 class WXDLLIMPEXP_FWD_BASE wxTextOutputStream;
  22
  23 typedef wxTextInputStream& (*__wxTextInputManip)(wxTextInputStream&);
  24 typedef wxTextOutputStream& (*__wxTextOutputManip)(wxTextOutputStream&);
  25
  26 WXDLLIMPEXP_BASE wxTextOutputStream &endl( wxTextOutputStream &stream );
  27
  28
  29 #define wxEOT wxT('\4') // the End-Of-Text control code (used only inside wxTextInputStream)
  30
  31 // If you're scanning through a file using wxTextInputStream, you should check for EOF _before_
  32 // reading the next item (word / number), because otherwise the last item may get lost.
  33 // You should however be prepared to receive an empty item (empty string / zero number) at the
  34 // end of file, especially on Windows systems. This is unavoidable because most (but not all) files end
  35 // with whitespace (i.e. usually a newline).
  36 class WXDLLIMPEXP_BASE wxTextInputStream
  37 {
  38 public:
  39 #if wxUSE_UNICODE
  40     wxTextInputStream(wxInputStream& s,
  41                       const wxString &sep=wxT(" \t"),
  42                       const wxMBConv& conv = wxConvAuto());
  43 #else
  44     wxTextInputStream(wxInputStream& s, const wxString &sep=wxT(" \t"));
  45 #endif
  46     ~wxTextInputStream();
  47
  48     wxUint32 Read32(int base = 10); // base may be between 2 and 36, inclusive, or the special 0 (= C format)
  49     wxUint16 Read16(int base = 10);
  50     wxUint8  Read8(int base = 10);
  51     wxInt32  Read32S(int base = 10);
  52     wxInt16  Read16S(int base = 10);
  53     wxInt8   Read8S(int base = 10);
  54     double   ReadDouble();
  55     wxString ReadLine();
  56     wxString ReadWord();
  57     wxChar   GetChar() { wxChar c = NextChar(); return (wxChar)(c != wxEOT ? c : 0); }
  58
  59     wxString GetStringSeparators() const { return m_separators; }
  60     void SetStringSeparators(const wxString &c) { m_separators = c; }
  61
  62     // Operators
  63     wxTextInputStream& operator>>(wxString& word);
  64     wxTextInputStream& operator>>(char& c);
  65 #if wxUSE_UNICODE && wxWCHAR_T_IS_REAL_TYPE
  66     wxTextInputStream& operator>>(wchar_t& wc);
  67 #endif // wxUSE_UNICODE
  68     wxTextInputStream& operator>>(wxInt16& i);
  69     wxTextInputStream& operator>>(wxInt32& i);
  70     wxTextInputStream& operator>>(wxUint16& i);
  71     wxTextInputStream& operator>>(wxUint32& i);
  72     wxTextInputStream& operator>>(double& i);
  73     wxTextInputStream& operator>>(float& f);
  74
  75     wxTextInputStream& operator>>( __wxTextInputManip func) { return func(*this); }
  76
  77 #if WXWIN_COMPATIBILITY_2_6
  78     wxDEPRECATED( wxString ReadString() );  // use ReadLine or ReadWord instead
  79 #endif // WXWIN_COMPATIBILITY_2_6
  80
  81 protected:
  82     wxInputStream &m_input;
  83     wxString m_separators;
  84     char m_lastBytes[10]; // stores the bytes that were read for the last character
  85
  86 #if wxUSE_UNICODE
  87     wxMBConv *m_conv;
  88 #endif
  89
  90     bool   EatEOL(const wxChar &c);
  91     void   UngetLast(); // should be used instead of wxInputStream::Ungetch() because of Unicode issues
  92     // returns EOT (\4) if there is a stream error, or end of file
  93     wxChar NextChar();   // this should be used instead of GetC() because of Unicode issues
  94     wxChar NextNonSeparators();
  95
  96     DECLARE_NO_COPY_CLASS(wxTextInputStream)
  97 };
  98
  99 typedef enum
 100 {
 101   wxEOL_NATIVE,
 102   wxEOL_UNIX,
 103   wxEOL_MAC,
 104   wxEOL_DOS
 105 } wxEOL;
 106
 107 class WXDLLIMPEXP_BASE wxTextOutputStream
 108 {
 109 public:
 110 #if wxUSE_UNICODE
 111     wxTextOutputStream(wxOutputStream& s,
 112                        wxEOL mode = wxEOL_NATIVE,
 113                        const wxMBConv& conv = wxConvAuto());
 114 #else
 115     wxTextOutputStream(wxOutputStream& s, wxEOL mode = wxEOL_NATIVE);
 116 #endif
 117     virtual ~wxTextOutputStream();
 118
 119     void SetMode( wxEOL mode = wxEOL_NATIVE );
 120     wxEOL GetMode() { return m_mode; }
 121
 122     void Write32(wxUint32 i);
 123     void Write16(wxUint16 i);
 124     void Write8(wxUint8 i);
 125     virtual void WriteDouble(double d);
 126     virtual void WriteString(const wxString& string);
 127
 128     wxTextOutputStream& PutChar(wxChar c);
 129
 130     wxTextOutputStream& operator<<(const wxString& string);
 131     wxTextOutputStream& operator<<(char c);
 132 #if wxUSE_UNICODE && wxWCHAR_T_IS_REAL_TYPE
 133     wxTextOutputStream& operator<<(wchar_t wc);
 134 #endif // wxUSE_UNICODE
 135     wxTextOutputStream& operator<<(wxInt16 c);
 136     wxTextOutputStream& operator<<(wxInt32 c);
 137     wxTextOutputStream& operator<<(wxUint16 c);
 138     wxTextOutputStream& operator<<(wxUint32 c);
 139     wxTextOutputStream& operator<<(double f);
 140     wxTextOutputStream& operator<<(float f);
 141
 142     wxTextOutputStream& operator<<( __wxTextOutputManip func) { return func(*this); }
 143
 144 protected:
 145     wxOutputStream &m_output;
 146     wxEOL           m_mode;
 147
 148 #if wxUSE_UNICODE
 149     wxMBConv *m_conv;
 150 #endif
 151
 152     DECLARE_NO_COPY_CLASS(wxTextOutputStream)
 153 };
 154
 155 #endif
 156   // wxUSE_STREAMS
 157
 158 #endif
 159     // _WX_DATSTREAM_H_