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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 | #ifndef WX_PRECOMP | |
22 | #include "wx/crt.h" | |
23 | #endif | |
24 | ||
25 | #include "wx/txtstrm.h" | |
26 | #include <ctype.h> | |
27 | ||
28 | ||
29 | // ---------------------------------------------------------------------------- | |
30 | // constants | |
31 | // ---------------------------------------------------------------------------- | |
32 | ||
33 | // Unix: "\n" | |
34 | // Dos: "\r\n" | |
35 | // Mac: "\r" | |
36 | ||
37 | // ---------------------------------------------------------------------------- | |
38 | // wxTextInputStream | |
39 | // ---------------------------------------------------------------------------- | |
40 | ||
41 | #if wxUSE_UNICODE | |
42 | wxTextInputStream::wxTextInputStream(wxInputStream &s, | |
43 | const wxString &sep, | |
44 | const wxMBConv& conv) | |
45 | : m_input(s), m_separators(sep), m_conv(conv.Clone()) | |
46 | { | |
47 | memset((void*)m_lastBytes, 0, 10); | |
48 | } | |
49 | #else | |
50 | wxTextInputStream::wxTextInputStream(wxInputStream &s, const wxString &sep) | |
51 | : m_input(s), m_separators(sep) | |
52 | { | |
53 | memset((void*)m_lastBytes, 0, 10); | |
54 | } | |
55 | #endif | |
56 | ||
57 | wxTextInputStream::~wxTextInputStream() | |
58 | { | |
59 | #if wxUSE_UNICODE | |
60 | delete m_conv; | |
61 | #endif // wxUSE_UNICODE | |
62 | } | |
63 | ||
64 | void wxTextInputStream::UngetLast() | |
65 | { | |
66 | size_t byteCount = 0; | |
67 | while(m_lastBytes[byteCount]) // pseudo ANSI strlen (even for Unicode!) | |
68 | byteCount++; | |
69 | m_input.Ungetch(m_lastBytes, byteCount); | |
70 | memset((void*)m_lastBytes, 0, 10); | |
71 | } | |
72 | ||
73 | wxChar wxTextInputStream::NextChar() | |
74 | { | |
75 | #if wxUSE_UNICODE | |
76 | wxChar wbuf[2]; | |
77 | memset((void*)m_lastBytes, 0, 10); | |
78 | for(size_t inlen = 0; inlen < 9; inlen++) | |
79 | { | |
80 | if (!m_input.CanRead()) | |
81 | return wxEOT; | |
82 | ||
83 | // actually read the next character | |
84 | m_lastBytes[inlen] = m_input.GetC(); | |
85 | ||
86 | if(m_input.LastRead() <= 0) | |
87 | return wxEOT; | |
88 | ||
89 | if ( m_conv->ToWChar(wbuf, WXSIZEOF(wbuf), m_lastBytes, inlen + 1) | |
90 | != wxCONV_FAILED ) | |
91 | return wbuf[0]; | |
92 | } | |
93 | // there should be no encoding which requires more than nine bytes for one character... | |
94 | return wxEOT; | |
95 | #else | |
96 | if (!m_input.CanRead()) | |
97 | return wxEOT; | |
98 | ||
99 | m_lastBytes[0] = m_input.GetC(); | |
100 | ||
101 | if(m_input.LastRead() <= 0) | |
102 | return wxEOT; | |
103 | ||
104 | return m_lastBytes[0]; | |
105 | #endif | |
106 | ||
107 | } | |
108 | ||
109 | wxChar wxTextInputStream::NextNonSeparators() | |
110 | { | |
111 | for (;;) | |
112 | { | |
113 | wxChar c = NextChar(); | |
114 | if (c == wxEOT) return (wxChar) 0; | |
115 | ||
116 | if (c != wxT('\n') && | |
117 | c != wxT('\r') && | |
118 | !m_separators.Contains(c)) | |
119 | return c; | |
120 | } | |
121 | ||
122 | } | |
123 | ||
124 | bool wxTextInputStream::EatEOL(const wxChar &c) | |
125 | { | |
126 | if (c == wxT('\n')) return true; // eat on UNIX | |
127 | ||
128 | if (c == wxT('\r')) // eat on both Mac and DOS | |
129 | { | |
130 | wxChar c2 = NextChar(); | |
131 | if(c2 == wxEOT) return true; // end of stream reached, had enough :-) | |
132 | ||
133 | if (c2 != wxT('\n')) UngetLast(); // Don't eat on Mac | |
134 | return true; | |
135 | } | |
136 | ||
137 | return false; | |
138 | } | |
139 | ||
140 | wxUint32 wxTextInputStream::Read32(int base) | |
141 | { | |
142 | wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") ); | |
143 | if(!m_input) return 0; | |
144 | ||
145 | wxString word = ReadWord(); | |
146 | if(word.empty()) | |
147 | return 0; | |
148 | return wxStrtoul(word.c_str(), 0, base); | |
149 | } | |
150 | ||
151 | wxUint16 wxTextInputStream::Read16(int base) | |
152 | { | |
153 | return (wxUint16)Read32(base); | |
154 | } | |
155 | ||
156 | wxUint8 wxTextInputStream::Read8(int base) | |
157 | { | |
158 | return (wxUint8)Read32(base); | |
159 | } | |
160 | ||
161 | wxInt32 wxTextInputStream::Read32S(int base) | |
162 | { | |
163 | wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") ); | |
164 | if(!m_input) return 0; | |
165 | ||
166 | wxString word = ReadWord(); | |
167 | if(word.empty()) | |
168 | return 0; | |
169 | return wxStrtol(word.c_str(), 0, base); | |
170 | } | |
171 | ||
172 | wxInt16 wxTextInputStream::Read16S(int base) | |
173 | { | |
174 | return (wxInt16)Read32S(base); | |
175 | } | |
176 | ||
177 | wxInt8 wxTextInputStream::Read8S(int base) | |
178 | { | |
179 | return (wxInt8)Read32S(base); | |
180 | } | |
181 | ||
182 | double wxTextInputStream::ReadDouble() | |
183 | { | |
184 | if(!m_input) return 0; | |
185 | wxString word = ReadWord(); | |
186 | if(word.empty()) | |
187 | return 0; | |
188 | return wxStrtod(word.c_str(), 0); | |
189 | } | |
190 | ||
191 | #if WXWIN_COMPATIBILITY_2_6 | |
192 | ||
193 | wxString wxTextInputStream::ReadString() | |
194 | { | |
195 | return ReadLine(); | |
196 | } | |
197 | ||
198 | #endif // WXWIN_COMPATIBILITY_2_6 | |
199 | ||
200 | wxString wxTextInputStream::ReadLine() | |
201 | { | |
202 | wxString line; | |
203 | ||
204 | while ( !m_input.Eof() ) | |
205 | { | |
206 | wxChar c = NextChar(); | |
207 | if(c == wxEOT) | |
208 | break; | |
209 | ||
210 | if (EatEOL(c)) | |
211 | break; | |
212 | ||
213 | line += c; | |
214 | } | |
215 | ||
216 | return line; | |
217 | } | |
218 | ||
219 | wxString wxTextInputStream::ReadWord() | |
220 | { | |
221 | wxString word; | |
222 | ||
223 | if ( !m_input ) | |
224 | return word; | |
225 | ||
226 | wxChar c = NextNonSeparators(); | |
227 | if ( !c ) | |
228 | return word; | |
229 | ||
230 | word += c; | |
231 | ||
232 | while ( !m_input.Eof() ) | |
233 | { | |
234 | c = NextChar(); | |
235 | if(c == wxEOT) | |
236 | break; | |
237 | ||
238 | if (m_separators.Contains(c)) | |
239 | break; | |
240 | ||
241 | if (EatEOL(c)) | |
242 | break; | |
243 | ||
244 | word += c; | |
245 | } | |
246 | ||
247 | return word; | |
248 | } | |
249 | ||
250 | wxTextInputStream& wxTextInputStream::operator>>(wxString& word) | |
251 | { | |
252 | word = ReadWord(); | |
253 | return *this; | |
254 | } | |
255 | ||
256 | wxTextInputStream& wxTextInputStream::operator>>(char& c) | |
257 | { | |
258 | c = m_input.GetC(); | |
259 | if(m_input.LastRead() <= 0) c = 0; | |
260 | ||
261 | if (EatEOL(c)) | |
262 | c = '\n'; | |
263 | ||
264 | return *this; | |
265 | } | |
266 | ||
267 | #if wxUSE_UNICODE && wxWCHAR_T_IS_REAL_TYPE | |
268 | ||
269 | wxTextInputStream& wxTextInputStream::operator>>(wchar_t& wc) | |
270 | { | |
271 | wc = GetChar(); | |
272 | ||
273 | return *this; | |
274 | } | |
275 | ||
276 | #endif // wxUSE_UNICODE | |
277 | ||
278 | wxTextInputStream& wxTextInputStream::operator>>(wxInt16& i) | |
279 | { | |
280 | i = (wxInt16)Read16(); | |
281 | return *this; | |
282 | } | |
283 | ||
284 | wxTextInputStream& wxTextInputStream::operator>>(wxInt32& i) | |
285 | { | |
286 | i = (wxInt32)Read32(); | |
287 | return *this; | |
288 | } | |
289 | ||
290 | wxTextInputStream& wxTextInputStream::operator>>(wxUint16& i) | |
291 | { | |
292 | i = Read16(); | |
293 | return *this; | |
294 | } | |
295 | ||
296 | wxTextInputStream& wxTextInputStream::operator>>(wxUint32& i) | |
297 | { | |
298 | i = Read32(); | |
299 | return *this; | |
300 | } | |
301 | ||
302 | wxTextInputStream& wxTextInputStream::operator>>(double& i) | |
303 | { | |
304 | i = ReadDouble(); | |
305 | return *this; | |
306 | } | |
307 | ||
308 | wxTextInputStream& wxTextInputStream::operator>>(float& f) | |
309 | { | |
310 | f = (float)ReadDouble(); | |
311 | return *this; | |
312 | } | |
313 | ||
314 | ||
315 | ||
316 | #if wxUSE_UNICODE | |
317 | wxTextOutputStream::wxTextOutputStream(wxOutputStream& s, | |
318 | wxEOL mode, | |
319 | const wxMBConv& conv) | |
320 | : m_output(s), m_conv(conv.Clone()) | |
321 | #else | |
322 | wxTextOutputStream::wxTextOutputStream(wxOutputStream& s, wxEOL mode) | |
323 | : m_output(s) | |
324 | #endif | |
325 | { | |
326 | m_mode = mode; | |
327 | if (m_mode == wxEOL_NATIVE) | |
328 | { | |
329 | #if defined(__WXMSW__) || defined(__WXPM__) | |
330 | m_mode = wxEOL_DOS; | |
331 | #elif defined(__WXMAC__) && !defined(__DARWIN__) | |
332 | m_mode = wxEOL_MAC; | |
333 | #else | |
334 | m_mode = wxEOL_UNIX; | |
335 | #endif | |
336 | } | |
337 | } | |
338 | ||
339 | wxTextOutputStream::~wxTextOutputStream() | |
340 | { | |
341 | #if wxUSE_UNICODE | |
342 | delete m_conv; | |
343 | #endif // wxUSE_UNICODE | |
344 | } | |
345 | ||
346 | void wxTextOutputStream::SetMode(wxEOL mode) | |
347 | { | |
348 | m_mode = mode; | |
349 | if (m_mode == wxEOL_NATIVE) | |
350 | { | |
351 | #if defined(__WXMSW__) || defined(__WXPM__) | |
352 | m_mode = wxEOL_DOS; | |
353 | #elif defined(__WXMAC__) && !defined(__DARWIN__) | |
354 | m_mode = wxEOL_MAC; | |
355 | #else | |
356 | m_mode = wxEOL_UNIX; | |
357 | #endif | |
358 | } | |
359 | } | |
360 | ||
361 | void wxTextOutputStream::Write32(wxUint32 i) | |
362 | { | |
363 | wxString str; | |
364 | str.Printf(wxT("%u"), i); | |
365 | ||
366 | WriteString(str); | |
367 | } | |
368 | ||
369 | void wxTextOutputStream::Write16(wxUint16 i) | |
370 | { | |
371 | wxString str; | |
372 | str.Printf(wxT("%u"), (unsigned)i); | |
373 | ||
374 | WriteString(str); | |
375 | } | |
376 | ||
377 | void wxTextOutputStream::Write8(wxUint8 i) | |
378 | { | |
379 | wxString str; | |
380 | str.Printf(wxT("%u"), (unsigned)i); | |
381 | ||
382 | WriteString(str); | |
383 | } | |
384 | ||
385 | void wxTextOutputStream::WriteDouble(double d) | |
386 | { | |
387 | wxString str; | |
388 | ||
389 | str.Printf(wxT("%f"), d); | |
390 | WriteString(str); | |
391 | } | |
392 | ||
393 | void wxTextOutputStream::WriteString(const wxString& string) | |
394 | { | |
395 | size_t len = string.length(); | |
396 | ||
397 | wxString out; | |
398 | out.reserve(len); | |
399 | ||
400 | for ( size_t i = 0; i < len; i++ ) | |
401 | { | |
402 | const wxChar c = string[i]; | |
403 | if ( c == wxT('\n') ) | |
404 | { | |
405 | switch ( m_mode ) | |
406 | { | |
407 | case wxEOL_DOS: | |
408 | out << _T("\r\n"); | |
409 | continue; | |
410 | ||
411 | case wxEOL_MAC: | |
412 | out << _T('\r'); | |
413 | continue; | |
414 | ||
415 | default: | |
416 | wxFAIL_MSG( _T("unknown EOL mode in wxTextOutputStream") ); | |
417 | // fall through | |
418 | ||
419 | case wxEOL_UNIX: | |
420 | // don't treat '\n' specially | |
421 | ; | |
422 | } | |
423 | } | |
424 | ||
425 | out << c; | |
426 | } | |
427 | ||
428 | #if wxUSE_UNICODE | |
429 | // FIXME-UTF8: use wxCharBufferWithLength if/when we have it | |
430 | wxCharBuffer buffer = m_conv->cWC2MB(out.wc_str(), out.length(), &len); | |
431 | m_output.Write(buffer, len); | |
432 | #else | |
433 | m_output.Write(out.c_str(), out.length() ); | |
434 | #endif | |
435 | } | |
436 | ||
437 | wxTextOutputStream& wxTextOutputStream::PutChar(wxChar c) | |
438 | { | |
439 | #if wxUSE_UNICODE | |
440 | WriteString( wxString(&c, *m_conv, 1) ); | |
441 | #else | |
442 | WriteString( wxString(&c, wxConvLocal, 1) ); | |
443 | #endif | |
444 | return *this; | |
445 | } | |
446 | ||
447 | wxTextOutputStream& wxTextOutputStream::operator<<(const wxString& string) | |
448 | { | |
449 | WriteString( string ); | |
450 | return *this; | |
451 | } | |
452 | ||
453 | wxTextOutputStream& wxTextOutputStream::operator<<(char c) | |
454 | { | |
455 | WriteString( wxString::FromAscii(c) ); | |
456 | ||
457 | return *this; | |
458 | } | |
459 | ||
460 | #if wxUSE_UNICODE && wxWCHAR_T_IS_REAL_TYPE | |
461 | ||
462 | wxTextOutputStream& wxTextOutputStream::operator<<(wchar_t wc) | |
463 | { | |
464 | WriteString( wxString(&wc, *m_conv, 1) ); | |
465 | ||
466 | return *this; | |
467 | } | |
468 | ||
469 | #endif // wxUSE_UNICODE | |
470 | ||
471 | wxTextOutputStream& wxTextOutputStream::operator<<(wxInt16 c) | |
472 | { | |
473 | wxString str; | |
474 | str.Printf(wxT("%d"), (signed int)c); | |
475 | WriteString(str); | |
476 | ||
477 | return *this; | |
478 | } | |
479 | ||
480 | wxTextOutputStream& wxTextOutputStream::operator<<(wxInt32 c) | |
481 | { | |
482 | wxString str; | |
483 | str.Printf(wxT("%ld"), (signed long)c); | |
484 | WriteString(str); | |
485 | ||
486 | return *this; | |
487 | } | |
488 | ||
489 | wxTextOutputStream& wxTextOutputStream::operator<<(wxUint16 c) | |
490 | { | |
491 | wxString str; | |
492 | str.Printf(wxT("%u"), (unsigned int)c); | |
493 | WriteString(str); | |
494 | ||
495 | return *this; | |
496 | } | |
497 | ||
498 | wxTextOutputStream& wxTextOutputStream::operator<<(wxUint32 c) | |
499 | { | |
500 | wxString str; | |
501 | str.Printf(wxT("%lu"), (unsigned long)c); | |
502 | WriteString(str); | |
503 | ||
504 | return *this; | |
505 | } | |
506 | ||
507 | wxTextOutputStream &wxTextOutputStream::operator<<(double f) | |
508 | { | |
509 | WriteDouble(f); | |
510 | return *this; | |
511 | } | |
512 | ||
513 | wxTextOutputStream& wxTextOutputStream::operator<<(float f) | |
514 | { | |
515 | WriteDouble((double)f); | |
516 | return *this; | |
517 | } | |
518 | ||
519 | wxTextOutputStream &endl( wxTextOutputStream &stream ) | |
520 | { | |
521 | return stream.PutChar(wxT('\n')); | |
522 | } | |
523 | ||
524 | #endif | |
525 | // wxUSE_STREAMS |