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1///////////////////////////////////////////////////////////////////////////////
2// Name: src/common/txtstrm.cpp
3// Purpose: Text stream classes
4// Author: Guilhem Lavaux
5// Modified by:
6// Created: 28/06/98
7// RCS-ID: $Id$
8// Copyright: (c) Guilhem Lavaux
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12// For compilers that support precompilation, includes "wx.h".
13#include "wx/wxprec.h"
14
15#ifdef __BORLANDC__
16 #pragma hdrstop
17#endif
18
19#if wxUSE_STREAMS
20
21#include "wx/txtstrm.h"
22#include <ctype.h>
23
24
25// ----------------------------------------------------------------------------
26// constants
27// ----------------------------------------------------------------------------
28
29// Unix: "\n"
30// Dos: "\r\n"
31// Mac: "\r"
32
33// ----------------------------------------------------------------------------
34// wxTextInputStream
35// ----------------------------------------------------------------------------
36
37#if wxUSE_UNICODE
38wxTextInputStream::wxTextInputStream(wxInputStream &s,
39 const wxString &sep,
40 const wxMBConv& conv)
41 : m_input(s), m_separators(sep), m_conv(conv.Clone())
42{
43 memset((void*)m_lastBytes, 0, 10);
44}
45#else
46wxTextInputStream::wxTextInputStream(wxInputStream &s, const wxString &sep)
47 : m_input(s), m_separators(sep)
48{
49 memset((void*)m_lastBytes, 0, 10);
50}
51#endif
52
53wxTextInputStream::~wxTextInputStream()
54{
55#if wxUSE_UNICODE
56 delete m_conv;
57#endif // wxUSE_UNICODE
58}
59
60void wxTextInputStream::UngetLast()
61{
62 size_t byteCount = 0;
63 while(m_lastBytes[byteCount]) // pseudo ANSI strlen (even for Unicode!)
64 byteCount++;
65 m_input.Ungetch(m_lastBytes, byteCount);
66 memset((void*)m_lastBytes, 0, 10);
67}
68
69wxChar wxTextInputStream::NextChar()
70{
71#if wxUSE_UNICODE
72 wxChar wbuf[2];
73 memset((void*)m_lastBytes, 0, 10);
74 for(size_t inlen = 0; inlen < 9; inlen++)
75 {
76 // actually read the next character
77 m_lastBytes[inlen] = m_input.GetC();
78
79 if(m_input.LastRead() <= 0)
80 return wxEOT;
81
82 if ( m_conv->ToWChar(wbuf, WXSIZEOF(wbuf), m_lastBytes, inlen + 1)
83 != wxCONV_FAILED )
84 return wbuf[0];
85 }
86 // there should be no encoding which requires more than nine bytes for one character...
87 return wxEOT;
88#else
89 m_lastBytes[0] = m_input.GetC();
90
91 if(m_input.LastRead() <= 0)
92 return wxEOT;
93
94 return m_lastBytes[0];
95#endif
96
97}
98
99wxChar wxTextInputStream::NextNonSeparators()
100{
101 for (;;)
102 {
103 wxChar c = NextChar();
104 if (c == wxEOT) return (wxChar) 0;
105
106 if (c != wxT('\n') &&
107 c != wxT('\r') &&
108 !m_separators.Contains(c))
109 return c;
110 }
111
112}
113
114bool wxTextInputStream::EatEOL(const wxChar &c)
115{
116 if (c == wxT('\n')) return true; // eat on UNIX
117
118 if (c == wxT('\r')) // eat on both Mac and DOS
119 {
120 wxChar c2 = NextChar();
121 if(c2 == wxEOT) return true; // end of stream reached, had enough :-)
122
123 if (c2 != wxT('\n')) UngetLast(); // Don't eat on Mac
124 return true;
125 }
126
127 return false;
128}
129
130wxUint32 wxTextInputStream::Read32(int base)
131{
132 wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") );
133 if(!m_input) return 0;
134
135 wxString word = ReadWord();
136 if(word.empty())
137 return 0;
138 return wxStrtoul(word.c_str(), 0, base);
139}
140
141wxUint16 wxTextInputStream::Read16(int base)
142{
143 return (wxUint16)Read32(base);
144}
145
146wxUint8 wxTextInputStream::Read8(int base)
147{
148 return (wxUint8)Read32(base);
149}
150
151wxInt32 wxTextInputStream::Read32S(int base)
152{
153 wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") );
154 if(!m_input) return 0;
155
156 wxString word = ReadWord();
157 if(word.empty())
158 return 0;
159 return wxStrtol(word.c_str(), 0, base);
160}
161
162wxInt16 wxTextInputStream::Read16S(int base)
163{
164 return (wxInt16)Read32S(base);
165}
166
167wxInt8 wxTextInputStream::Read8S(int base)
168{
169 return (wxInt8)Read32S(base);
170}
171
172double wxTextInputStream::ReadDouble()
173{
174 if(!m_input) return 0;
175 wxString word = ReadWord();
176 if(word.empty())
177 return 0;
178 return wxStrtod(word.c_str(), 0);
179}
180
181#if WXWIN_COMPATIBILITY_2_6
182
183wxString wxTextInputStream::ReadString()
184{
185 return ReadLine();
186}
187
188#endif // WXWIN_COMPATIBILITY_2_6
189
190wxString wxTextInputStream::ReadLine()
191{
192 wxString line;
193
194 while ( !m_input.Eof() )
195 {
196 wxChar c = NextChar();
197 if(c == wxEOT)
198 break;
199
200 if ( !m_input )
201 break;
202
203 if (EatEOL(c))
204 break;
205
206 line += c;
207 }
208
209 return line;
210}
211
212wxString wxTextInputStream::ReadWord()
213{
214 wxString word;
215
216 if ( !m_input )
217 return word;
218
219 wxChar c = NextNonSeparators();
220 if ( !c )
221 return word;
222
223 word += c;
224
225 while ( !m_input.Eof() )
226 {
227 c = NextChar();
228 if(c == wxEOT)
229 break;
230
231 if (m_separators.Contains(c))
232 break;
233
234 if (EatEOL(c))
235 break;
236
237 word += c;
238 }
239
240 return word;
241}
242
243wxTextInputStream& wxTextInputStream::operator>>(wxString& word)
244{
245 word = ReadWord();
246 return *this;
247}
248
249wxTextInputStream& wxTextInputStream::operator>>(char& c)
250{
251 c = m_input.GetC();
252 if(m_input.LastRead() <= 0) c = 0;
253
254 if (EatEOL(c))
255 c = '\n';
256
257 return *this;
258}
259
260#if wxUSE_UNICODE && wxWCHAR_T_IS_REAL_TYPE
261
262wxTextInputStream& wxTextInputStream::operator>>(wchar_t& wc)
263{
264 wc = GetChar();
265
266 return *this;
267}
268
269#endif // wxUSE_UNICODE
270
271wxTextInputStream& wxTextInputStream::operator>>(wxInt16& i)
272{
273 i = (wxInt16)Read16();
274 return *this;
275}
276
277wxTextInputStream& wxTextInputStream::operator>>(wxInt32& i)
278{
279 i = (wxInt32)Read32();
280 return *this;
281}
282
283wxTextInputStream& wxTextInputStream::operator>>(wxUint16& i)
284{
285 i = Read16();
286 return *this;
287}
288
289wxTextInputStream& wxTextInputStream::operator>>(wxUint32& i)
290{
291 i = Read32();
292 return *this;
293}
294
295wxTextInputStream& wxTextInputStream::operator>>(double& i)
296{
297 i = ReadDouble();
298 return *this;
299}
300
301wxTextInputStream& wxTextInputStream::operator>>(float& f)
302{
303 f = (float)ReadDouble();
304 return *this;
305}
306
307
308
309#if wxUSE_UNICODE
310wxTextOutputStream::wxTextOutputStream(wxOutputStream& s,
311 wxEOL mode,
312 const wxMBConv& conv)
313 : m_output(s), m_conv(conv.Clone())
314#else
315wxTextOutputStream::wxTextOutputStream(wxOutputStream& s, wxEOL mode)
316 : m_output(s)
317#endif
318{
319 m_mode = mode;
320 if (m_mode == wxEOL_NATIVE)
321 {
322#if defined(__WXMSW__) || defined(__WXPM__)
323 m_mode = wxEOL_DOS;
324#elif defined(__WXMAC__) && !defined(__DARWIN__)
325 m_mode = wxEOL_MAC;
326#else
327 m_mode = wxEOL_UNIX;
328#endif
329 }
330}
331
332wxTextOutputStream::~wxTextOutputStream()
333{
334#if wxUSE_UNICODE
335 delete m_conv;
336#endif // wxUSE_UNICODE
337}
338
339void wxTextOutputStream::SetMode(wxEOL mode)
340{
341 m_mode = mode;
342 if (m_mode == wxEOL_NATIVE)
343 {
344#if defined(__WXMSW__) || defined(__WXPM__)
345 m_mode = wxEOL_DOS;
346#elif defined(__WXMAC__) && !defined(__DARWIN__)
347 m_mode = wxEOL_MAC;
348#else
349 m_mode = wxEOL_UNIX;
350#endif
351 }
352}
353
354void wxTextOutputStream::Write32(wxUint32 i)
355{
356 wxString str;
357 str.Printf(wxT("%u"), i);
358
359 WriteString(str);
360}
361
362void wxTextOutputStream::Write16(wxUint16 i)
363{
364 wxString str;
365 str.Printf(wxT("%u"), (unsigned)i);
366
367 WriteString(str);
368}
369
370void wxTextOutputStream::Write8(wxUint8 i)
371{
372 wxString str;
373 str.Printf(wxT("%u"), (unsigned)i);
374
375 WriteString(str);
376}
377
378void wxTextOutputStream::WriteDouble(double d)
379{
380 wxString str;
381
382 str.Printf(wxT("%f"), d);
383 WriteString(str);
384}
385
386void wxTextOutputStream::WriteString(const wxString& string)
387{
388 size_t len = string.length();
389
390 wxString out;
391 out.reserve(len);
392
393 for ( size_t i = 0; i < len; i++ )
394 {
395 const wxChar c = string[i];
396 if ( c == wxT('\n') )
397 {
398 switch ( m_mode )
399 {
400 case wxEOL_DOS:
401 out << _T("\r\n");
402 continue;
403
404 case wxEOL_MAC:
405 out << _T('\r');
406 continue;
407
408 default:
409 wxFAIL_MSG( _T("unknown EOL mode in wxTextOutputStream") );
410 // fall through
411
412 case wxEOL_UNIX:
413 // don't treat '\n' specially
414 ;
415 }
416 }
417
418 out << c;
419 }
420
421#if wxUSE_UNICODE
422 wxCharBuffer buffer = m_conv->cWC2MB(out, out.length(), &len);
423 m_output.Write(buffer, len);
424#else
425 m_output.Write(out.c_str(), out.length() );
426#endif
427}
428
429wxTextOutputStream& wxTextOutputStream::PutChar(wxChar c)
430{
431#if wxUSE_UNICODE
432 WriteString( wxString(&c, *m_conv, 1) );
433#else
434 WriteString( wxString(&c, wxConvLocal, 1) );
435#endif
436 return *this;
437}
438
439wxTextOutputStream& wxTextOutputStream::operator<<(const wxChar *string)
440{
441 WriteString( wxString(string) );
442 return *this;
443}
444
445wxTextOutputStream& wxTextOutputStream::operator<<(const wxString& string)
446{
447 WriteString( string );
448 return *this;
449}
450
451wxTextOutputStream& wxTextOutputStream::operator<<(char c)
452{
453 WriteString( wxString::FromAscii(c) );
454
455 return *this;
456}
457
458#if wxUSE_UNICODE && wxWCHAR_T_IS_REAL_TYPE
459
460wxTextOutputStream& wxTextOutputStream::operator<<(wchar_t wc)
461{
462 WriteString( wxString(&wc, *m_conv, 1) );
463
464 return *this;
465}
466
467#endif // wxUSE_UNICODE
468
469wxTextOutputStream& wxTextOutputStream::operator<<(wxInt16 c)
470{
471 wxString str;
472 str.Printf(wxT("%d"), (signed int)c);
473 WriteString(str);
474
475 return *this;
476}
477
478wxTextOutputStream& wxTextOutputStream::operator<<(wxInt32 c)
479{
480 wxString str;
481 str.Printf(wxT("%ld"), (signed long)c);
482 WriteString(str);
483
484 return *this;
485}
486
487wxTextOutputStream& wxTextOutputStream::operator<<(wxUint16 c)
488{
489 wxString str;
490 str.Printf(wxT("%u"), (unsigned int)c);
491 WriteString(str);
492
493 return *this;
494}
495
496wxTextOutputStream& wxTextOutputStream::operator<<(wxUint32 c)
497{
498 wxString str;
499 str.Printf(wxT("%lu"), (unsigned long)c);
500 WriteString(str);
501
502 return *this;
503}
504
505wxTextOutputStream &wxTextOutputStream::operator<<(double f)
506{
507 WriteDouble(f);
508 return *this;
509}
510
511wxTextOutputStream& wxTextOutputStream::operator<<(float f)
512{
513 WriteDouble((double)f);
514 return *this;
515}
516
517wxTextOutputStream &endl( wxTextOutputStream &stream )
518{
519 return stream.PutChar(wxT('\n'));
520}
521
522#endif
523 // wxUSE_STREAMS