include/wx/txtstrm.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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_BASE wxTextInputStream;
  21 class WXDLLIMPEXP_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 ReadString();  // deprecated: use ReadLine or ReadWord instead
  56     wxString ReadLine();
  57     wxString ReadWord();
  58     wxChar   GetChar() { wxChar c = NextChar(); return (wxChar)(c != wxEOT ? c : 0); }
  59
  60     wxString GetStringSeparators() const { return m_separators; }
  61     void SetStringSeparators(const wxString &c) { m_separators = c; }
  62
  63     // Operators
  64     wxTextInputStream& operator>>(wxString& word);
  65     wxTextInputStream& operator>>(char& c);
  66 #if wxUSE_UNICODE && wxWCHAR_T_IS_REAL_TYPE
  67     wxTextInputStream& operator>>(wchar_t& wc);
  68 #endif // wxUSE_UNICODE
  69     wxTextInputStream& operator>>(wxInt16& i);
  70     wxTextInputStream& operator>>(wxInt32& i);
  71     wxTextInputStream& operator>>(wxUint16& i);
  72     wxTextInputStream& operator>>(wxUint32& i);
  73     wxTextInputStream& operator>>(double& i);
  74     wxTextInputStream& operator>>(float& f);
  75
  76     wxTextInputStream& operator>>( __wxTextInputManip func) { return func(*this); }
  77
  78 protected:
  79     wxInputStream &m_input;
  80     wxString m_separators;
  81     char m_lastBytes[10]; // stores the bytes that were read for the last character
  82
  83 #if wxUSE_UNICODE
  84     wxMBConv *m_conv;
  85 #endif
  86
  87     bool   EatEOL(const wxChar &c);
  88     void   UngetLast(); // should be used instead of wxInputStream::Ungetch() because of Unicode issues
  89     // returns EOT (\4) if there is a stream error, or end of file
  90     wxChar NextChar();   // this should be used instead of GetC() because of Unicode issues
  91     wxChar NextNonSeparators();
  92
  93     DECLARE_NO_COPY_CLASS(wxTextInputStream)
  94 };
  95
  96 typedef enum
  97 {
  98   wxEOL_NATIVE,
  99   wxEOL_UNIX,
 100   wxEOL_MAC,
 101   wxEOL_DOS
 102 } wxEOL;
 103
 104 class WXDLLIMPEXP_BASE wxTextOutputStream
 105 {
 106 public:
 107 #if wxUSE_UNICODE
 108     wxTextOutputStream(wxOutputStream& s,
 109                        wxEOL mode = wxEOL_NATIVE,
 110                        const wxMBConv& conv = wxConvAuto());
 111 #else
 112     wxTextOutputStream(wxOutputStream& s, wxEOL mode = wxEOL_NATIVE);
 113 #endif
 114     virtual ~wxTextOutputStream();
 115
 116     void SetMode( wxEOL mode = wxEOL_NATIVE );
 117     wxEOL GetMode() { return m_mode; }
 118
 119     void Write32(wxUint32 i);
 120     void Write16(wxUint16 i);
 121     void Write8(wxUint8 i);
 122     virtual void WriteDouble(double d);
 123     virtual void WriteString(const wxString& string);
 124
 125     wxTextOutputStream& PutChar(wxChar c);
 126
 127     wxTextOutputStream& operator<<(const wxChar *string);
 128     wxTextOutputStream& operator<<(const wxString& string);
 129     wxTextOutputStream& operator<<(char c);
 130 #if wxUSE_UNICODE && wxWCHAR_T_IS_REAL_TYPE
 131     wxTextOutputStream& operator<<(wchar_t wc);
 132 #endif // wxUSE_UNICODE
 133     wxTextOutputStream& operator<<(wxInt16 c);
 134     wxTextOutputStream& operator<<(wxInt32 c);
 135     wxTextOutputStream& operator<<(wxUint16 c);
 136     wxTextOutputStream& operator<<(wxUint32 c);
 137     wxTextOutputStream& operator<<(double f);
 138     wxTextOutputStream& operator<<(float f);
 139
 140     wxTextOutputStream& operator<<( __wxTextOutputManip func) { return func(*this); }
 141
 142 protected:
 143     wxOutputStream &m_output;
 144     wxEOL           m_mode;
 145
 146 #if wxUSE_UNICODE
 147     wxMBConv *m_conv;
 148 #endif
 149
 150     DECLARE_NO_COPY_CLASS(wxTextOutputStream)
 151 };
 152
 153 #endif
 154   // wxUSE_STREAMS
 155
 156 #endif
 157     // _WX_DATSTREAM_H_