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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
23#ifndef WX_PRECOMP
24 #include "wx/crt.h"
25#endif
26
27#include <ctype.h>
28
29// ----------------------------------------------------------------------------
30// wxTextInputStream
31// ----------------------------------------------------------------------------
32
33#if wxUSE_UNICODE
34wxTextInputStream::wxTextInputStream(wxInputStream &s,
35 const wxString &sep,
36 const wxMBConv& conv)
37 : m_input(s), m_separators(sep), m_conv(conv.Clone())
38{
39 memset((void*)m_lastBytes, 0, 10);
40}
41#else
42wxTextInputStream::wxTextInputStream(wxInputStream &s, const wxString &sep)
43 : m_input(s), m_separators(sep)
44{
45 memset((void*)m_lastBytes, 0, 10);
46}
47#endif
48
49wxTextInputStream::~wxTextInputStream()
50{
51#if wxUSE_UNICODE
52 delete m_conv;
53#endif // wxUSE_UNICODE
54}
55
56void wxTextInputStream::UngetLast()
57{
58 size_t byteCount = 0;
59 while(m_lastBytes[byteCount]) // pseudo ANSI strlen (even for Unicode!)
60 byteCount++;
61 m_input.Ungetch(m_lastBytes, byteCount);
62 memset((void*)m_lastBytes, 0, 10);
63}
64
65wxChar wxTextInputStream::NextChar()
66{
67#if wxUSE_UNICODE
68 wxChar wbuf[2];
69 memset((void*)m_lastBytes, 0, 10);
70 for(size_t inlen = 0; inlen < 9; inlen++)
71 {
72 // actually read the next character
73 m_lastBytes[inlen] = m_input.GetC();
74
75 if(m_input.LastRead() <= 0)
76 return wxEOT;
77
78 if ( m_conv->ToWChar(wbuf, WXSIZEOF(wbuf), m_lastBytes, inlen + 1)
79 != wxCONV_FAILED )
80 return wbuf[0];
81 }
82 // there should be no encoding which requires more than nine bytes for one character...
83 return wxEOT;
84#else
85 m_lastBytes[0] = m_input.GetC();
86
87 if(m_input.LastRead() <= 0)
88 return wxEOT;
89
90 return m_lastBytes[0];
91#endif
92
93}
94
95wxChar wxTextInputStream::NextNonSeparators()
96{
97 for (;;)
98 {
99 wxChar c = NextChar();
100 if (c == wxEOT) return (wxChar) 0;
101
102 if (c != wxT('\n') &&
103 c != wxT('\r') &&
104 m_separators.Find(c) < 0)
105 return c;
106 }
107
108}
109
110bool wxTextInputStream::EatEOL(const wxChar &c)
111{
112 if (c == wxT('\n')) return true; // eat on UNIX
113
114 if (c == wxT('\r')) // eat on both Mac and DOS
115 {
116 wxChar c2 = NextChar();
117 if(c2 == wxEOT) return true; // end of stream reached, had enough :-)
118
119 if (c2 != wxT('\n')) UngetLast(); // Don't eat on Mac
120 return true;
121 }
122
123 return false;
124}
125
126wxUint32 wxTextInputStream::Read32(int base)
127{
128 wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") );
129 if(!m_input) return 0;
130
131 wxString word = ReadWord();
132 if(word.empty())
133 return 0;
134 return wxStrtoul(word.c_str(), 0, base);
135}
136
137wxUint16 wxTextInputStream::Read16(int base)
138{
139 return (wxUint16)Read32(base);
140}
141
142wxUint8 wxTextInputStream::Read8(int base)
143{
144 return (wxUint8)Read32(base);
145}
146
147wxInt32 wxTextInputStream::Read32S(int base)
148{
149 wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") );
150 if(!m_input) return 0;
151
152 wxString word = ReadWord();
153 if(word.empty())
154 return 0;
155 return wxStrtol(word.c_str(), 0, base);
156}
157
158wxInt16 wxTextInputStream::Read16S(int base)
159{
160 return (wxInt16)Read32S(base);
161}
162
163wxInt8 wxTextInputStream::Read8S(int base)
164{
165 return (wxInt8)Read32S(base);
166}
167
168double wxTextInputStream::ReadDouble()
169{
170 if(!m_input) return 0;
171 wxString word = ReadWord();
172 if(word.empty())
173 return 0;
174 return wxStrtod(word.c_str(), 0);
175}
176
177#if WXWIN_COMPATIBILITY_2_6
178
179wxString wxTextInputStream::ReadString()
180{
181 return ReadLine();
182}
183
184#endif // WXWIN_COMPATIBILITY_2_6
185
186wxString wxTextInputStream::ReadLine()
187{
188 wxString line;
189
190 while ( !m_input.Eof() )
191 {
192 wxChar c = NextChar();
193 if(c == wxEOT)
194 break;
195
196 if (EatEOL(c))
197 break;
198
199 line += c;
200 }
201
202 return line;
203}
204
205wxString wxTextInputStream::ReadWord()
206{
207 wxString word;
208
209 if ( !m_input )
210 return word;
211
212 wxChar c = NextNonSeparators();
213 if ( !c )
214 return word;
215
216 word += c;
217
218 while ( !m_input.Eof() )
219 {
220 c = NextChar();
221 if(c == wxEOT)
222 break;
223
224 if (m_separators.Find(c) >= 0)
225 break;
226
227 if (EatEOL(c))
228 break;
229
230 word += c;
231 }
232
233 return word;
234}
235
236wxTextInputStream& wxTextInputStream::operator>>(wxString& word)
237{
238 word = ReadWord();
239 return *this;
240}
241
242wxTextInputStream& wxTextInputStream::operator>>(char& c)
243{
244 c = m_input.GetC();
245 if(m_input.LastRead() <= 0) c = 0;
246
247 if (EatEOL(c))
248 c = '\n';
249
250 return *this;
251}
252
253#if wxUSE_UNICODE && wxWCHAR_T_IS_REAL_TYPE
254
255wxTextInputStream& wxTextInputStream::operator>>(wchar_t& wc)
256{
257 wc = GetChar();
258
259 return *this;
260}
261
262#endif // wxUSE_UNICODE
263
264wxTextInputStream& wxTextInputStream::operator>>(wxInt16& i)
265{
266 i = (wxInt16)Read16();
267 return *this;
268}
269
270wxTextInputStream& wxTextInputStream::operator>>(wxInt32& i)
271{
272 i = (wxInt32)Read32();
273 return *this;
274}
275
276wxTextInputStream& wxTextInputStream::operator>>(wxUint16& i)
277{
278 i = Read16();
279 return *this;
280}
281
282wxTextInputStream& wxTextInputStream::operator>>(wxUint32& i)
283{
284 i = Read32();
285 return *this;
286}
287
288wxTextInputStream& wxTextInputStream::operator>>(double& i)
289{
290 i = ReadDouble();
291 return *this;
292}
293
294wxTextInputStream& wxTextInputStream::operator>>(float& f)
295{
296 f = (float)ReadDouble();
297 return *this;
298}
299
300
301
302#if wxUSE_UNICODE
303wxTextOutputStream::wxTextOutputStream(wxOutputStream& s,
304 wxEOL mode,
305 const wxMBConv& conv)
306 : m_output(s), m_conv(conv.Clone())
307#else
308wxTextOutputStream::wxTextOutputStream(wxOutputStream& s, wxEOL mode)
309 : m_output(s)
310#endif
311{
312 m_mode = mode;
313 if (m_mode == wxEOL_NATIVE)
314 {
315#if defined(__WXMSW__) || defined(__WXPM__)
316 m_mode = wxEOL_DOS;
317#else
318 m_mode = wxEOL_UNIX;
319#endif
320 }
321}
322
323wxTextOutputStream::~wxTextOutputStream()
324{
325#if wxUSE_UNICODE
326 delete m_conv;
327#endif // wxUSE_UNICODE
328}
329
330void wxTextOutputStream::SetMode(wxEOL mode)
331{
332 m_mode = mode;
333 if (m_mode == wxEOL_NATIVE)
334 {
335#if defined(__WXMSW__) || defined(__WXPM__)
336 m_mode = wxEOL_DOS;
337#else
338 m_mode = wxEOL_UNIX;
339#endif
340 }
341}
342
343void wxTextOutputStream::Write32(wxUint32 i)
344{
345 wxString str;
346 str.Printf(wxT("%u"), i);
347
348 WriteString(str);
349}
350
351void wxTextOutputStream::Write16(wxUint16 i)
352{
353 wxString str;
354 str.Printf(wxT("%u"), (unsigned)i);
355
356 WriteString(str);
357}
358
359void wxTextOutputStream::Write8(wxUint8 i)
360{
361 wxString str;
362 str.Printf(wxT("%u"), (unsigned)i);
363
364 WriteString(str);
365}
366
367void wxTextOutputStream::WriteDouble(double d)
368{
369 wxString str;
370
371 str.Printf(wxT("%f"), d);
372 WriteString(str);
373}
374
375void wxTextOutputStream::WriteString(const wxString& string)
376{
377 size_t len = string.length();
378
379 wxString out;
380 out.reserve(len);
381
382 for ( size_t i = 0; i < len; i++ )
383 {
384 const wxChar c = string[i];
385 if ( c == wxT('\n') )
386 {
387 switch ( m_mode )
388 {
389 case wxEOL_DOS:
390 out << _T("\r\n");
391 continue;
392
393 case wxEOL_MAC:
394 out << _T('\r');
395 continue;
396
397 default:
398 wxFAIL_MSG( _T("unknown EOL mode in wxTextOutputStream") );
399 // fall through
400
401 case wxEOL_UNIX:
402 // don't treat '\n' specially
403 ;
404 }
405 }
406
407 out << c;
408 }
409
410#if wxUSE_UNICODE
411 // FIXME-UTF8: use wxCharBufferWithLength if/when we have it
412 wxCharBuffer buffer = m_conv->cWC2MB(out.wc_str(), out.length(), &len);
413 m_output.Write(buffer, len);
414#else
415 m_output.Write(out.c_str(), out.length() );
416#endif
417}
418
419wxTextOutputStream& wxTextOutputStream::PutChar(wxChar c)
420{
421#if wxUSE_UNICODE
422 WriteString( wxString(&c, *m_conv, 1) );
423#else
424 WriteString( wxString(&c, wxConvLocal, 1) );
425#endif
426 return *this;
427}
428
429void wxTextOutputStream::Flush()
430{
431#if wxUSE_UNICODE
432 const size_t len = m_conv->FromWChar(NULL, 0, L"", 1);
433 if ( len > m_conv->GetMBNulLen() )
434 {
435 wxCharBuffer buf(len);
436 m_conv->FromWChar(buf.data(), len, L"", 1);
437 m_output.Write(buf, len - m_conv->GetMBNulLen());
438 }
439#endif // wxUSE_UNICODE
440}
441
442wxTextOutputStream& wxTextOutputStream::operator<<(const wxString& string)
443{
444 WriteString( string );
445 return *this;
446}
447
448wxTextOutputStream& wxTextOutputStream::operator<<(char c)
449{
450 WriteString( wxString::FromAscii(c) );
451
452 return *this;
453}
454
455#if wxUSE_UNICODE && wxWCHAR_T_IS_REAL_TYPE
456
457wxTextOutputStream& wxTextOutputStream::operator<<(wchar_t wc)
458{
459 WriteString( wxString(&wc, *m_conv, 1) );
460
461 return *this;
462}
463
464#endif // wxUSE_UNICODE
465
466wxTextOutputStream& wxTextOutputStream::operator<<(wxInt16 c)
467{
468 wxString str;
469 str.Printf(wxT("%d"), (signed int)c);
470 WriteString(str);
471
472 return *this;
473}
474
475wxTextOutputStream& wxTextOutputStream::operator<<(wxInt32 c)
476{
477 wxString str;
478 str.Printf(wxT("%ld"), (signed long)c);
479 WriteString(str);
480
481 return *this;
482}
483
484wxTextOutputStream& wxTextOutputStream::operator<<(wxUint16 c)
485{
486 wxString str;
487 str.Printf(wxT("%u"), (unsigned int)c);
488 WriteString(str);
489
490 return *this;
491}
492
493wxTextOutputStream& wxTextOutputStream::operator<<(wxUint32 c)
494{
495 wxString str;
496 str.Printf(wxT("%lu"), (unsigned long)c);
497 WriteString(str);
498
499 return *this;
500}
501
502wxTextOutputStream &wxTextOutputStream::operator<<(double f)
503{
504 WriteDouble(f);
505 return *this;
506}
507
508wxTextOutputStream& wxTextOutputStream::operator<<(float f)
509{
510 WriteDouble((double)f);
511 return *this;
512}
513
514wxTextOutputStream &endl( wxTextOutputStream &stream )
515{
516 return stream.PutChar(wxT('\n'));
517}
518
519#endif
520 // wxUSE_STREAMS