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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 | |
34 | wxTextInputStream::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 | |
42 | wxTextInputStream::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 | ||
49 | wxTextInputStream::~wxTextInputStream() | |
50 | { | |
51 | #if wxUSE_UNICODE | |
52 | delete m_conv; | |
53 | #endif // wxUSE_UNICODE | |
54 | } | |
55 | ||
56 | void 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 | ||
65 | wxChar 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 | ||
95 | wxChar 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 | ||
110 | bool 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 | ||
126 | wxUint32 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 | ||
137 | wxUint16 wxTextInputStream::Read16(int base) | |
138 | { | |
139 | return (wxUint16)Read32(base); | |
140 | } | |
141 | ||
142 | wxUint8 wxTextInputStream::Read8(int base) | |
143 | { | |
144 | return (wxUint8)Read32(base); | |
145 | } | |
146 | ||
147 | wxInt32 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 | ||
158 | wxInt16 wxTextInputStream::Read16S(int base) | |
159 | { | |
160 | return (wxInt16)Read32S(base); | |
161 | } | |
162 | ||
163 | wxInt8 wxTextInputStream::Read8S(int base) | |
164 | { | |
165 | return (wxInt8)Read32S(base); | |
166 | } | |
167 | ||
168 | double 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 | ||
179 | wxString wxTextInputStream::ReadString() | |
180 | { | |
181 | return ReadLine(); | |
182 | } | |
183 | ||
184 | #endif // WXWIN_COMPATIBILITY_2_6 | |
185 | ||
186 | wxString 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 | ||
205 | wxString 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 | ||
236 | wxTextInputStream& wxTextInputStream::operator>>(wxString& word) | |
237 | { | |
238 | word = ReadWord(); | |
239 | return *this; | |
240 | } | |
241 | ||
242 | wxTextInputStream& 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 | ||
255 | wxTextInputStream& wxTextInputStream::operator>>(wchar_t& wc) | |
256 | { | |
257 | wc = GetChar(); | |
258 | ||
259 | return *this; | |
260 | } | |
261 | ||
262 | #endif // wxUSE_UNICODE | |
263 | ||
264 | wxTextInputStream& wxTextInputStream::operator>>(wxInt16& i) | |
265 | { | |
266 | i = (wxInt16)Read16(); | |
267 | return *this; | |
268 | } | |
269 | ||
270 | wxTextInputStream& wxTextInputStream::operator>>(wxInt32& i) | |
271 | { | |
272 | i = (wxInt32)Read32(); | |
273 | return *this; | |
274 | } | |
275 | ||
276 | wxTextInputStream& wxTextInputStream::operator>>(wxUint16& i) | |
277 | { | |
278 | i = Read16(); | |
279 | return *this; | |
280 | } | |
281 | ||
282 | wxTextInputStream& wxTextInputStream::operator>>(wxUint32& i) | |
283 | { | |
284 | i = Read32(); | |
285 | return *this; | |
286 | } | |
287 | ||
288 | wxTextInputStream& wxTextInputStream::operator>>(double& i) | |
289 | { | |
290 | i = ReadDouble(); | |
291 | return *this; | |
292 | } | |
293 | ||
294 | wxTextInputStream& wxTextInputStream::operator>>(float& f) | |
295 | { | |
296 | f = (float)ReadDouble(); | |
297 | return *this; | |
298 | } | |
299 | ||
300 | ||
301 | ||
302 | #if wxUSE_UNICODE | |
303 | wxTextOutputStream::wxTextOutputStream(wxOutputStream& s, | |
304 | wxEOL mode, | |
305 | const wxMBConv& conv) | |
306 | : m_output(s), m_conv(conv.Clone()) | |
307 | #else | |
308 | wxTextOutputStream::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 | ||
323 | wxTextOutputStream::~wxTextOutputStream() | |
324 | { | |
325 | #if wxUSE_UNICODE | |
326 | delete m_conv; | |
327 | #endif // wxUSE_UNICODE | |
328 | } | |
329 | ||
330 | void 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 | ||
343 | void wxTextOutputStream::Write32(wxUint32 i) | |
344 | { | |
345 | wxString str; | |
346 | str.Printf(wxT("%u"), i); | |
347 | ||
348 | WriteString(str); | |
349 | } | |
350 | ||
351 | void wxTextOutputStream::Write16(wxUint16 i) | |
352 | { | |
353 | wxString str; | |
354 | str.Printf(wxT("%u"), (unsigned)i); | |
355 | ||
356 | WriteString(str); | |
357 | } | |
358 | ||
359 | void wxTextOutputStream::Write8(wxUint8 i) | |
360 | { | |
361 | wxString str; | |
362 | str.Printf(wxT("%u"), (unsigned)i); | |
363 | ||
364 | WriteString(str); | |
365 | } | |
366 | ||
367 | void wxTextOutputStream::WriteDouble(double d) | |
368 | { | |
369 | wxString str; | |
370 | ||
371 | str.Printf(wxT("%f"), d); | |
372 | WriteString(str); | |
373 | } | |
374 | ||
375 | void 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 | ||
419 | wxTextOutputStream& 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 | ||
429 | void 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 | ||
442 | wxTextOutputStream& wxTextOutputStream::operator<<(const wxString& string) | |
443 | { | |
444 | WriteString( string ); | |
445 | return *this; | |
446 | } | |
447 | ||
448 | wxTextOutputStream& 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 | ||
457 | wxTextOutputStream& wxTextOutputStream::operator<<(wchar_t wc) | |
458 | { | |
459 | WriteString( wxString(&wc, *m_conv, 1) ); | |
460 | ||
461 | return *this; | |
462 | } | |
463 | ||
464 | #endif // wxUSE_UNICODE | |
465 | ||
466 | wxTextOutputStream& 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 | ||
475 | wxTextOutputStream& 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 | ||
484 | wxTextOutputStream& 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 | ||
493 | wxTextOutputStream& 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 | ||
502 | wxTextOutputStream &wxTextOutputStream::operator<<(double f) | |
503 | { | |
504 | WriteDouble(f); | |
505 | return *this; | |
506 | } | |
507 | ||
508 | wxTextOutputStream& wxTextOutputStream::operator<<(float f) | |
509 | { | |
510 | WriteDouble((double)f); | |
511 | return *this; | |
512 | } | |
513 | ||
514 | wxTextOutputStream &endl( wxTextOutputStream &stream ) | |
515 | { | |
516 | return stream.PutChar(wxT('\n')); | |
517 | } | |
518 | ||
519 | #endif | |
520 | // wxUSE_STREAMS |