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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: 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 | |
38 | wxTextInputStream::wxTextInputStream(wxInputStream &s, const wxString &sep, wxMBConv& conv) | |
39 | : m_input(s), m_separators(sep), m_conv(conv) | |
40 | { | |
41 | memset((void*)m_lastBytes, 0, 10); | |
42 | } | |
43 | #else | |
44 | wxTextInputStream::wxTextInputStream(wxInputStream &s, const wxString &sep) | |
45 | : m_input(s), m_separators(sep) | |
46 | { | |
47 | memset((void*)m_lastBytes, 0, 10); | |
48 | } | |
49 | #endif | |
50 | ||
51 | wxTextInputStream::~wxTextInputStream() | |
52 | { | |
53 | } | |
54 | ||
55 | void wxTextInputStream::UngetLast() | |
56 | { | |
57 | size_t byteCount = 0; | |
58 | while(m_lastBytes[byteCount]) // pseudo ANSI strlen (even for Unicode!) | |
59 | byteCount++; | |
60 | m_input.Ungetch(m_lastBytes, byteCount); | |
61 | memset((void*)m_lastBytes, 0, 10); | |
62 | } | |
63 | ||
64 | wxChar wxTextInputStream::NextChar() | |
65 | { | |
66 | #if wxUSE_UNICODE | |
67 | wxChar wbuf[2]; | |
68 | memset((void*)m_lastBytes, 0, 10); | |
69 | for(size_t inlen = 0; inlen < 9; inlen++) | |
70 | { | |
71 | // actually read the next character | |
72 | m_lastBytes[inlen] = m_input.GetC(); | |
73 | ||
74 | if(m_input.LastRead() <= 0) | |
75 | return wxEOT; | |
76 | ||
77 | int retlen = (int) m_conv.MB2WC(wbuf, m_lastBytes, 2); // returns -1 for failure | |
78 | if(retlen >= 0) // res == 0 could happen for '\0' char | |
79 | return wbuf[0]; | |
80 | } | |
81 | // there should be no encoding which requires more than nine bytes for one character... | |
82 | return wxEOT; | |
83 | #else | |
84 | m_lastBytes[0] = m_input.GetC(); | |
85 | ||
86 | if(m_input.LastRead() <= 0) | |
87 | return wxEOT; | |
88 | ||
89 | return m_lastBytes[0]; | |
90 | #endif | |
91 | ||
92 | } | |
93 | ||
94 | wxChar wxTextInputStream::NextNonSeparators() | |
95 | { | |
96 | for (;;) | |
97 | { | |
98 | wxChar c = NextChar(); | |
99 | if (c == wxEOT) return (wxChar) 0; | |
100 | ||
101 | if (c != wxT('\n') && | |
102 | c != wxT('\r') && | |
103 | !m_separators.Contains(c)) | |
104 | return c; | |
105 | } | |
106 | ||
107 | } | |
108 | ||
109 | bool wxTextInputStream::EatEOL(const wxChar &c) | |
110 | { | |
111 | if (c == wxT('\n')) return true; // eat on UNIX | |
112 | ||
113 | if (c == wxT('\r')) // eat on both Mac and DOS | |
114 | { | |
115 | wxChar c2 = NextChar(); | |
116 | if(c2 == wxEOT) return true; // end of stream reached, had enough :-) | |
117 | ||
118 | if (c2 != wxT('\n')) UngetLast(); // Don't eat on Mac | |
119 | return true; | |
120 | } | |
121 | ||
122 | return false; | |
123 | } | |
124 | ||
125 | wxUint32 wxTextInputStream::Read32(int base) | |
126 | { | |
127 | wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") ); | |
128 | if(!m_input) return 0; | |
129 | ||
130 | wxString word = ReadWord(); | |
131 | if(word.empty()) | |
132 | return 0; | |
133 | return wxStrtoul(word.c_str(), 0, base); | |
134 | } | |
135 | ||
136 | wxUint16 wxTextInputStream::Read16(int base) | |
137 | { | |
138 | return (wxUint16)Read32(base); | |
139 | } | |
140 | ||
141 | wxUint8 wxTextInputStream::Read8(int base) | |
142 | { | |
143 | return (wxUint8)Read32(base); | |
144 | } | |
145 | ||
146 | wxInt32 wxTextInputStream::Read32S(int base) | |
147 | { | |
148 | wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") ); | |
149 | if(!m_input) return 0; | |
150 | ||
151 | wxString word = ReadWord(); | |
152 | if(word.empty()) | |
153 | return 0; | |
154 | return wxStrtol(word.c_str(), 0, base); | |
155 | } | |
156 | ||
157 | wxInt16 wxTextInputStream::Read16S(int base) | |
158 | { | |
159 | return (wxInt16)Read32S(base); | |
160 | } | |
161 | ||
162 | wxInt8 wxTextInputStream::Read8S(int base) | |
163 | { | |
164 | return (wxInt8)Read32S(base); | |
165 | } | |
166 | ||
167 | double wxTextInputStream::ReadDouble() | |
168 | { | |
169 | if(!m_input) return 0; | |
170 | wxString word = ReadWord(); | |
171 | if(word.empty()) | |
172 | return 0; | |
173 | return wxStrtod(word.c_str(), 0); | |
174 | } | |
175 | ||
176 | wxString wxTextInputStream::ReadString() | |
177 | { | |
178 | return ReadLine(); | |
179 | } | |
180 | ||
181 | wxString wxTextInputStream::ReadLine() | |
182 | { | |
183 | wxString line; | |
184 | ||
185 | while ( !m_input.Eof() ) | |
186 | { | |
187 | wxChar c = NextChar(); | |
188 | if(c == wxEOT) | |
189 | break; | |
190 | ||
191 | if ( !m_input ) | |
192 | break; | |
193 | ||
194 | if (EatEOL(c)) | |
195 | break; | |
196 | ||
197 | line += c; | |
198 | } | |
199 | ||
200 | return line; | |
201 | } | |
202 | ||
203 | wxString wxTextInputStream::ReadWord() | |
204 | { | |
205 | wxString word; | |
206 | ||
207 | if ( !m_input ) | |
208 | return word; | |
209 | ||
210 | wxChar c = NextNonSeparators(); | |
211 | if ( !c ) | |
212 | return word; | |
213 | ||
214 | word += c; | |
215 | ||
216 | while ( !m_input.Eof() ) | |
217 | { | |
218 | c = NextChar(); | |
219 | if(c == wxEOT) | |
220 | break; | |
221 | ||
222 | if (m_separators.Contains(c)) | |
223 | break; | |
224 | ||
225 | if (EatEOL(c)) | |
226 | break; | |
227 | ||
228 | word += c; | |
229 | } | |
230 | ||
231 | return word; | |
232 | } | |
233 | ||
234 | wxTextInputStream& wxTextInputStream::operator>>(wxString& word) | |
235 | { | |
236 | word = ReadWord(); | |
237 | return *this; | |
238 | } | |
239 | ||
240 | wxTextInputStream& wxTextInputStream::operator>>(char& c) | |
241 | { | |
242 | c = m_input.GetC(); | |
243 | if(m_input.LastRead() <= 0) c = 0; | |
244 | ||
245 | if (EatEOL(c)) | |
246 | c = '\n'; | |
247 | ||
248 | return *this; | |
249 | } | |
250 | ||
251 | #if wxUSE_UNICODE && wxWCHAR_T_IS_REAL_TYPE | |
252 | ||
253 | wxTextInputStream& wxTextInputStream::operator>>(wchar_t& wc) | |
254 | { | |
255 | wc = GetChar(); | |
256 | ||
257 | return *this; | |
258 | } | |
259 | ||
260 | #endif // wxUSE_UNICODE | |
261 | ||
262 | wxTextInputStream& wxTextInputStream::operator>>(wxInt16& i) | |
263 | { | |
264 | i = (wxInt16)Read16(); | |
265 | return *this; | |
266 | } | |
267 | ||
268 | wxTextInputStream& wxTextInputStream::operator>>(wxInt32& i) | |
269 | { | |
270 | i = (wxInt32)Read32(); | |
271 | return *this; | |
272 | } | |
273 | ||
274 | wxTextInputStream& wxTextInputStream::operator>>(wxUint16& i) | |
275 | { | |
276 | i = Read16(); | |
277 | return *this; | |
278 | } | |
279 | ||
280 | wxTextInputStream& wxTextInputStream::operator>>(wxUint32& i) | |
281 | { | |
282 | i = Read32(); | |
283 | return *this; | |
284 | } | |
285 | ||
286 | wxTextInputStream& wxTextInputStream::operator>>(double& i) | |
287 | { | |
288 | i = ReadDouble(); | |
289 | return *this; | |
290 | } | |
291 | ||
292 | wxTextInputStream& wxTextInputStream::operator>>(float& f) | |
293 | { | |
294 | f = (float)ReadDouble(); | |
295 | return *this; | |
296 | } | |
297 | ||
298 | ||
299 | ||
300 | #if wxUSE_UNICODE | |
301 | wxTextOutputStream::wxTextOutputStream(wxOutputStream& s, wxEOL mode, wxMBConv& conv) | |
302 | : m_output(s), m_conv(conv) | |
303 | #else | |
304 | wxTextOutputStream::wxTextOutputStream(wxOutputStream& s, wxEOL mode) | |
305 | : m_output(s) | |
306 | #endif | |
307 | { | |
308 | m_mode = mode; | |
309 | if (m_mode == wxEOL_NATIVE) | |
310 | { | |
311 | #if defined(__WXMSW__) || defined(__WXPM__) | |
312 | m_mode = wxEOL_DOS; | |
313 | #elif defined(__WXMAC__) && !defined(__DARWIN__) | |
314 | m_mode = wxEOL_MAC; | |
315 | #else | |
316 | m_mode = wxEOL_UNIX; | |
317 | #endif | |
318 | } | |
319 | } | |
320 | ||
321 | wxTextOutputStream::~wxTextOutputStream() | |
322 | { | |
323 | } | |
324 | ||
325 | void wxTextOutputStream::SetMode(wxEOL mode) | |
326 | { | |
327 | m_mode = mode; | |
328 | if (m_mode == wxEOL_NATIVE) | |
329 | { | |
330 | #if defined(__WXMSW__) || defined(__WXPM__) | |
331 | m_mode = wxEOL_DOS; | |
332 | #elif defined(__WXMAC__) && !defined(__DARWIN__) | |
333 | m_mode = wxEOL_MAC; | |
334 | #else | |
335 | m_mode = wxEOL_UNIX; | |
336 | #endif | |
337 | } | |
338 | } | |
339 | ||
340 | void wxTextOutputStream::Write32(wxUint32 i) | |
341 | { | |
342 | wxString str; | |
343 | str.Printf(wxT("%u"), i); | |
344 | ||
345 | WriteString(str); | |
346 | } | |
347 | ||
348 | void wxTextOutputStream::Write16(wxUint16 i) | |
349 | { | |
350 | wxString str; | |
351 | str.Printf(wxT("%u"), (unsigned)i); | |
352 | ||
353 | WriteString(str); | |
354 | } | |
355 | ||
356 | void wxTextOutputStream::Write8(wxUint8 i) | |
357 | { | |
358 | wxString str; | |
359 | str.Printf(wxT("%u"), (unsigned)i); | |
360 | ||
361 | WriteString(str); | |
362 | } | |
363 | ||
364 | void wxTextOutputStream::WriteDouble(double d) | |
365 | { | |
366 | wxString str; | |
367 | ||
368 | str.Printf(wxT("%f"), d); | |
369 | WriteString(str); | |
370 | } | |
371 | ||
372 | void wxTextOutputStream::WriteString(const wxString& string) | |
373 | { | |
374 | size_t len = string.length(); | |
375 | ||
376 | wxString out; | |
377 | out.reserve(len); | |
378 | ||
379 | for ( size_t i = 0; i < len; i++ ) | |
380 | { | |
381 | const wxChar c = string[i]; | |
382 | if ( c == wxT('\n') ) | |
383 | { | |
384 | switch ( m_mode ) | |
385 | { | |
386 | case wxEOL_DOS: | |
387 | out << _T("\r\n"); | |
388 | continue; | |
389 | ||
390 | case wxEOL_MAC: | |
391 | out << _T('\r'); | |
392 | continue; | |
393 | ||
394 | default: | |
395 | wxFAIL_MSG( _T("unknown EOL mode in wxTextOutputStream") ); | |
396 | // fall through | |
397 | ||
398 | case wxEOL_UNIX: | |
399 | // don't treat '\n' specially | |
400 | ; | |
401 | } | |
402 | } | |
403 | ||
404 | out << c; | |
405 | } | |
406 | ||
407 | // We must not write the trailing NULL here | |
408 | #if wxUSE_UNICODE | |
409 | wxCharBuffer buffer = m_conv.cWC2MB( out ); | |
410 | m_output.Write( (const char*) buffer, strlen( (const char*) buffer ) ); | |
411 | #else | |
412 | m_output.Write(out.c_str(), out.length() ); | |
413 | #endif | |
414 | } | |
415 | ||
416 | wxTextOutputStream& wxTextOutputStream::PutChar(wxChar c) | |
417 | { | |
418 | #if wxUSE_UNICODE | |
419 | WriteString( wxString(&c, m_conv, 1) ); | |
420 | #else | |
421 | WriteString( wxString(&c, wxConvLocal, 1) ); | |
422 | #endif | |
423 | return *this; | |
424 | } | |
425 | ||
426 | wxTextOutputStream& wxTextOutputStream::operator<<(const wxChar *string) | |
427 | { | |
428 | WriteString( wxString(string) ); | |
429 | return *this; | |
430 | } | |
431 | ||
432 | wxTextOutputStream& wxTextOutputStream::operator<<(const wxString& string) | |
433 | { | |
434 | WriteString( string ); | |
435 | return *this; | |
436 | } | |
437 | ||
438 | wxTextOutputStream& wxTextOutputStream::operator<<(char c) | |
439 | { | |
440 | WriteString( wxString::FromAscii(c) ); | |
441 | ||
442 | return *this; | |
443 | } | |
444 | ||
445 | #if wxUSE_UNICODE && wxWCHAR_T_IS_REAL_TYPE | |
446 | ||
447 | wxTextOutputStream& wxTextOutputStream::operator<<(wchar_t wc) | |
448 | { | |
449 | WriteString( wxString(&wc, m_conv, 1) ); | |
450 | ||
451 | return *this; | |
452 | } | |
453 | ||
454 | #endif // wxUSE_UNICODE | |
455 | ||
456 | wxTextOutputStream& wxTextOutputStream::operator<<(wxInt16 c) | |
457 | { | |
458 | wxString str; | |
459 | str.Printf(wxT("%d"), (signed int)c); | |
460 | WriteString(str); | |
461 | ||
462 | return *this; | |
463 | } | |
464 | ||
465 | wxTextOutputStream& wxTextOutputStream::operator<<(wxInt32 c) | |
466 | { | |
467 | wxString str; | |
468 | str.Printf(wxT("%ld"), (signed long)c); | |
469 | WriteString(str); | |
470 | ||
471 | return *this; | |
472 | } | |
473 | ||
474 | wxTextOutputStream& wxTextOutputStream::operator<<(wxUint16 c) | |
475 | { | |
476 | wxString str; | |
477 | str.Printf(wxT("%u"), (unsigned int)c); | |
478 | WriteString(str); | |
479 | ||
480 | return *this; | |
481 | } | |
482 | ||
483 | wxTextOutputStream& wxTextOutputStream::operator<<(wxUint32 c) | |
484 | { | |
485 | wxString str; | |
486 | str.Printf(wxT("%lu"), (unsigned long)c); | |
487 | WriteString(str); | |
488 | ||
489 | return *this; | |
490 | } | |
491 | ||
492 | wxTextOutputStream &wxTextOutputStream::operator<<(double f) | |
493 | { | |
494 | WriteDouble(f); | |
495 | return *this; | |
496 | } | |
497 | ||
498 | wxTextOutputStream& wxTextOutputStream::operator<<(float f) | |
499 | { | |
500 | WriteDouble((double)f); | |
501 | return *this; | |
502 | } | |
503 | ||
504 | wxTextOutputStream &endl( wxTextOutputStream &stream ) | |
505 | { | |
506 | return stream.PutChar(wxT('\n')); | |
507 | } | |
508 | ||
509 | #endif | |
510 | // wxUSE_STREAMS |