| 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 license |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #ifdef __GNUG__ |
| 13 | #pragma implementation "txtstrm.h" |
| 14 | #endif |
| 15 | |
| 16 | // For compilers that support precompilation, includes "wx.h". |
| 17 | #include "wx/wxprec.h" |
| 18 | |
| 19 | #ifdef __BORLANDC__ |
| 20 | #pragma hdrstop |
| 21 | #endif |
| 22 | |
| 23 | #if wxUSE_STREAMS |
| 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 | wxTextInputStream::wxTextInputStream(wxInputStream &s, const wxString &sep) |
| 42 | : m_input(s), m_separators(sep) |
| 43 | { |
| 44 | } |
| 45 | |
| 46 | wxTextInputStream::~wxTextInputStream() |
| 47 | { |
| 48 | } |
| 49 | |
| 50 | wxChar wxTextInputStream::NextNonSeparators() |
| 51 | { |
| 52 | wxChar c = (wxChar) 0; |
| 53 | for (;;) |
| 54 | { |
| 55 | if (!m_input) return (wxChar) 0; |
| 56 | c = m_input.GetC(); |
| 57 | |
| 58 | if (c != wxT('\n') && |
| 59 | c != wxT('\r') && |
| 60 | !m_separators.Contains(c)) |
| 61 | return c; |
| 62 | } |
| 63 | |
| 64 | } |
| 65 | |
| 66 | bool wxTextInputStream::EatEOL(const wxChar &c) |
| 67 | { |
| 68 | if (c == wxT('\n')) return TRUE; // eat on UNIX |
| 69 | |
| 70 | if (c == wxT('\r')) // eat on both Mac and DOS |
| 71 | { |
| 72 | if (!m_input) return TRUE; |
| 73 | wxChar c2 = m_input.GetC(); |
| 74 | |
| 75 | if (c2 != wxT('\n')) m_input.Ungetch( c2 ); // Don't eat on Mac |
| 76 | return TRUE; |
| 77 | } |
| 78 | |
| 79 | return FALSE; |
| 80 | } |
| 81 | |
| 82 | void wxTextInputStream::SkipIfEndOfLine( wxChar c ) |
| 83 | { |
| 84 | if (EatEOL(c)) return; |
| 85 | else m_input.Ungetch( c ); // no line terminator |
| 86 | } |
| 87 | |
| 88 | wxUint32 wxTextInputStream::Read32() |
| 89 | { |
| 90 | /* I only implemented a simple integer parser */ |
| 91 | // VZ: what about using strtol()?? (TODO) |
| 92 | |
| 93 | int sign; |
| 94 | wxInt32 i; |
| 95 | |
| 96 | if (!m_input) return 0; |
| 97 | int c = NextNonSeparators(); |
| 98 | if (c==(wxChar)0) return 0; |
| 99 | |
| 100 | i = 0; |
| 101 | if (! (c == wxT('-') || c == wxT('+') || isdigit(c)) ) |
| 102 | { |
| 103 | m_input.Ungetch(c); |
| 104 | return 0; |
| 105 | } |
| 106 | |
| 107 | if (c == wxT('-')) |
| 108 | { |
| 109 | sign = -1; |
| 110 | c = m_input.GetC(); |
| 111 | } else |
| 112 | if (c == wxT('+')) |
| 113 | { |
| 114 | sign = 1; |
| 115 | c = m_input.GetC(); |
| 116 | } else |
| 117 | { |
| 118 | sign = 1; |
| 119 | } |
| 120 | |
| 121 | while (isdigit(c)) |
| 122 | { |
| 123 | i = i*10 + (c - (int)wxT('0')); |
| 124 | c = m_input.GetC(); |
| 125 | } |
| 126 | |
| 127 | SkipIfEndOfLine( c ); |
| 128 | |
| 129 | i *= sign; |
| 130 | |
| 131 | return (wxUint32)i; |
| 132 | } |
| 133 | |
| 134 | wxUint16 wxTextInputStream::Read16() |
| 135 | { |
| 136 | return (wxUint16)Read32(); |
| 137 | } |
| 138 | |
| 139 | wxUint8 wxTextInputStream::Read8() |
| 140 | { |
| 141 | return (wxUint8)Read32(); |
| 142 | } |
| 143 | |
| 144 | double wxTextInputStream::ReadDouble() |
| 145 | { |
| 146 | /* I only implemented a simple float parser |
| 147 | * VZ: what about using strtod()?? (TODO) |
| 148 | */ |
| 149 | |
| 150 | double f; |
| 151 | int theSign; |
| 152 | |
| 153 | if (!m_input) |
| 154 | return 0; |
| 155 | |
| 156 | int c = NextNonSeparators(); |
| 157 | if (c==(wxChar)0) return 0; |
| 158 | |
| 159 | f = 0.0; |
| 160 | if (! (c == wxT('.') || c == wxT(',') || c == wxT('-') || c == wxT('+') || isdigit(c)) ) |
| 161 | { |
| 162 | m_input.Ungetch(c); |
| 163 | return 0; |
| 164 | } |
| 165 | |
| 166 | if (c == wxT('-')) |
| 167 | { |
| 168 | theSign = -1; |
| 169 | c = m_input.GetC(); |
| 170 | } else |
| 171 | if (c == wxT('+')) |
| 172 | { |
| 173 | theSign = 1; |
| 174 | c = m_input.GetC(); |
| 175 | } |
| 176 | else |
| 177 | { |
| 178 | theSign = 1; |
| 179 | } |
| 180 | |
| 181 | while (isdigit(c)) |
| 182 | { |
| 183 | f = f*10 + (c - wxT('0')); |
| 184 | c = m_input.GetC(); |
| 185 | } |
| 186 | |
| 187 | if (c == wxT('.') || c == wxT(',')) |
| 188 | { |
| 189 | double f_multiplicator = (double) 0.1; |
| 190 | |
| 191 | c = m_input.GetC(); |
| 192 | |
| 193 | while (isdigit(c)) |
| 194 | { |
| 195 | f += (c-wxT('0'))*f_multiplicator; |
| 196 | f_multiplicator /= 10; |
| 197 | c = m_input.GetC(); |
| 198 | } |
| 199 | |
| 200 | if (c == wxT('e')) |
| 201 | { |
| 202 | double f_multiplicator = 0.0; |
| 203 | int i, e; |
| 204 | |
| 205 | c = m_input.GetC(); |
| 206 | |
| 207 | switch (c) |
| 208 | { |
| 209 | case wxT('-'): f_multiplicator = 0.1; break; |
| 210 | case wxT('+'): f_multiplicator = 10.0; break; |
| 211 | } |
| 212 | |
| 213 | e = Read8(); // why only max 256 ? |
| 214 | |
| 215 | for (i=0;i<e;i++) |
| 216 | f *= f_multiplicator; |
| 217 | } |
| 218 | else |
| 219 | SkipIfEndOfLine( c ); |
| 220 | } |
| 221 | else |
| 222 | { |
| 223 | m_input.Ungetch(c); |
| 224 | } |
| 225 | |
| 226 | f *= theSign; |
| 227 | return f; |
| 228 | } |
| 229 | |
| 230 | wxString wxTextInputStream::ReadString() |
| 231 | { |
| 232 | return ReadLine(); |
| 233 | } |
| 234 | |
| 235 | wxString wxTextInputStream::ReadLine() |
| 236 | { |
| 237 | wxChar c; |
| 238 | wxString line; |
| 239 | |
| 240 | while ( !m_input.Eof() ) |
| 241 | { |
| 242 | c = m_input.GetC(); |
| 243 | |
| 244 | if ( !m_input ) |
| 245 | break; |
| 246 | |
| 247 | if (EatEOL(c)) |
| 248 | break; |
| 249 | |
| 250 | line += c; |
| 251 | } |
| 252 | |
| 253 | return line; |
| 254 | } |
| 255 | |
| 256 | wxString wxTextInputStream::ReadWord() |
| 257 | { |
| 258 | wxString word; |
| 259 | |
| 260 | if ( !m_input ) |
| 261 | return word; |
| 262 | |
| 263 | wxChar c = NextNonSeparators(); |
| 264 | if ( !c ) |
| 265 | return word; |
| 266 | |
| 267 | word += c; |
| 268 | |
| 269 | while ( !m_input.Eof() ) |
| 270 | { |
| 271 | c = m_input.GetC(); |
| 272 | |
| 273 | if (!m_input) |
| 274 | break; |
| 275 | |
| 276 | if (m_separators.Contains(c)) |
| 277 | break; |
| 278 | |
| 279 | if (EatEOL(c)) |
| 280 | break; |
| 281 | |
| 282 | word += c; |
| 283 | } |
| 284 | |
| 285 | return word; |
| 286 | } |
| 287 | |
| 288 | wxTextInputStream& wxTextInputStream::operator>>(wxString& word) |
| 289 | { |
| 290 | word = ReadWord(); |
| 291 | return *this; |
| 292 | } |
| 293 | |
| 294 | wxTextInputStream& wxTextInputStream::operator>>(char& c) |
| 295 | { |
| 296 | if (!m_input) |
| 297 | { |
| 298 | c = 0; |
| 299 | return *this; |
| 300 | } |
| 301 | |
| 302 | c = m_input.GetC(); |
| 303 | |
| 304 | if (EatEOL(c)) |
| 305 | c = '\n'; |
| 306 | |
| 307 | return *this; |
| 308 | } |
| 309 | |
| 310 | wxTextInputStream& wxTextInputStream::operator>>(wxInt16& i) |
| 311 | { |
| 312 | i = (wxInt16)Read16(); |
| 313 | return *this; |
| 314 | } |
| 315 | |
| 316 | wxTextInputStream& wxTextInputStream::operator>>(wxInt32& i) |
| 317 | { |
| 318 | i = (wxInt32)Read32(); |
| 319 | return *this; |
| 320 | } |
| 321 | |
| 322 | wxTextInputStream& wxTextInputStream::operator>>(wxUint16& i) |
| 323 | { |
| 324 | i = Read16(); |
| 325 | return *this; |
| 326 | } |
| 327 | |
| 328 | wxTextInputStream& wxTextInputStream::operator>>(wxUint32& i) |
| 329 | { |
| 330 | i = Read32(); |
| 331 | return *this; |
| 332 | } |
| 333 | |
| 334 | wxTextInputStream& wxTextInputStream::operator>>(double& i) |
| 335 | { |
| 336 | i = ReadDouble(); |
| 337 | return *this; |
| 338 | } |
| 339 | |
| 340 | wxTextInputStream& wxTextInputStream::operator>>(float& f) |
| 341 | { |
| 342 | f = (float)ReadDouble(); |
| 343 | return *this; |
| 344 | } |
| 345 | |
| 346 | wxTextOutputStream::wxTextOutputStream(wxOutputStream& s, wxEOL mode) |
| 347 | : m_output(s) |
| 348 | { |
| 349 | m_mode = mode; |
| 350 | if (m_mode == wxEOL_NATIVE) |
| 351 | { |
| 352 | #if defined(__WXMSW__) || defined(__WXPM__) |
| 353 | m_mode = wxEOL_DOS; |
| 354 | #elif defined(__WXMAC__) && !defined(__DARWIN__) |
| 355 | m_mode = wxEOL_MAC; |
| 356 | #else |
| 357 | m_mode = wxEOL_UNIX; |
| 358 | #endif |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | wxTextOutputStream::~wxTextOutputStream() |
| 363 | { |
| 364 | } |
| 365 | |
| 366 | void wxTextOutputStream::SetMode(wxEOL mode) |
| 367 | { |
| 368 | m_mode = mode; |
| 369 | if (m_mode == wxEOL_NATIVE) |
| 370 | { |
| 371 | #if defined(__WXMSW__) || defined(__WXPM__) |
| 372 | m_mode = wxEOL_DOS; |
| 373 | #elif defined(__WXMAC__) && !defined(__DARWIN__) |
| 374 | m_mode = wxEOL_MAC; |
| 375 | #else |
| 376 | m_mode = wxEOL_UNIX; |
| 377 | #endif |
| 378 | } |
| 379 | } |
| 380 | |
| 381 | void wxTextOutputStream::Write32(wxUint32 i) |
| 382 | { |
| 383 | wxString str; |
| 384 | str.Printf(wxT("%u"), i); |
| 385 | |
| 386 | WriteString(str); |
| 387 | } |
| 388 | |
| 389 | void wxTextOutputStream::Write16(wxUint16 i) |
| 390 | { |
| 391 | wxString str; |
| 392 | str.Printf(wxT("%u"), i); |
| 393 | |
| 394 | WriteString(str); |
| 395 | } |
| 396 | |
| 397 | void wxTextOutputStream::Write8(wxUint8 i) |
| 398 | { |
| 399 | wxString str; |
| 400 | str.Printf(wxT("%u"), i); |
| 401 | |
| 402 | WriteString(str); |
| 403 | } |
| 404 | |
| 405 | void wxTextOutputStream::WriteDouble(double d) |
| 406 | { |
| 407 | wxString str; |
| 408 | |
| 409 | str.Printf(wxT("%f"), d); |
| 410 | WriteString(str); |
| 411 | } |
| 412 | |
| 413 | void wxTextOutputStream::WriteString(const wxString& string) |
| 414 | { |
| 415 | for (size_t i = 0; i < string.Len(); i++) |
| 416 | { |
| 417 | wxChar c = string[i]; |
| 418 | if (c == wxT('\n')) |
| 419 | { |
| 420 | if (m_mode == wxEOL_DOS) |
| 421 | { |
| 422 | c = wxT('\r'); |
| 423 | m_output.Write( (const void*)(&c), sizeof(wxChar) ); |
| 424 | c = wxT('\n'); |
| 425 | m_output.Write( (const void*)(&c), sizeof(wxChar) ); |
| 426 | } else |
| 427 | if (m_mode == wxEOL_MAC) |
| 428 | { |
| 429 | c = wxT('\r'); |
| 430 | m_output.Write( (const void*)(&c), sizeof(wxChar) ); |
| 431 | } else |
| 432 | { |
| 433 | c = wxT('\n'); |
| 434 | m_output.Write( (const void*)(&c), sizeof(wxChar) ); |
| 435 | } |
| 436 | } |
| 437 | else |
| 438 | { |
| 439 | m_output.Write( (const void*)(&c), sizeof(wxChar) ); |
| 440 | } |
| 441 | } |
| 442 | } |
| 443 | |
| 444 | wxTextOutputStream& wxTextOutputStream::operator<<(const wxChar *string) |
| 445 | { |
| 446 | WriteString( wxString(string) ); |
| 447 | return *this; |
| 448 | } |
| 449 | |
| 450 | wxTextOutputStream& wxTextOutputStream::operator<<(const wxString& string) |
| 451 | { |
| 452 | WriteString( string ); |
| 453 | return *this; |
| 454 | } |
| 455 | |
| 456 | wxTextOutputStream& wxTextOutputStream::operator<<(char c) |
| 457 | { |
| 458 | // these strange manipulations are needed in Unicode mode |
| 459 | char buf[2]; |
| 460 | buf[0] = c; |
| 461 | buf[1] = 0; |
| 462 | |
| 463 | WriteString( wxString(buf) ); |
| 464 | return *this; |
| 465 | } |
| 466 | |
| 467 | wxTextOutputStream& wxTextOutputStream::operator<<(wxInt16 c) |
| 468 | { |
| 469 | wxString str; |
| 470 | str.Printf(wxT("%d"), (signed int)c); |
| 471 | WriteString(str); |
| 472 | |
| 473 | return *this; |
| 474 | } |
| 475 | |
| 476 | wxTextOutputStream& wxTextOutputStream::operator<<(wxInt32 c) |
| 477 | { |
| 478 | wxString str; |
| 479 | str.Printf(wxT("%ld"), (signed long)c); |
| 480 | WriteString(str); |
| 481 | |
| 482 | return *this; |
| 483 | } |
| 484 | |
| 485 | wxTextOutputStream& wxTextOutputStream::operator<<(wxUint16 c) |
| 486 | { |
| 487 | wxString str; |
| 488 | str.Printf(wxT("%u"), (unsigned int)c); |
| 489 | WriteString(str); |
| 490 | |
| 491 | return *this; |
| 492 | } |
| 493 | |
| 494 | wxTextOutputStream& wxTextOutputStream::operator<<(wxUint32 c) |
| 495 | { |
| 496 | wxString str; |
| 497 | str.Printf(wxT("%lu"), (unsigned long)c); |
| 498 | WriteString(str); |
| 499 | |
| 500 | return *this; |
| 501 | } |
| 502 | |
| 503 | wxTextOutputStream &wxTextOutputStream::operator<<(double f) |
| 504 | { |
| 505 | WriteDouble(f); |
| 506 | return *this; |
| 507 | } |
| 508 | |
| 509 | wxTextOutputStream& wxTextOutputStream::operator<<(float f) |
| 510 | { |
| 511 | WriteDouble((double)f); |
| 512 | return *this; |
| 513 | } |
| 514 | |
| 515 | wxTextOutputStream &endl( wxTextOutputStream &stream ) |
| 516 | { |
| 517 | return stream << wxT('\n'); |
| 518 | } |
| 519 | |
| 520 | #endif |
| 521 | // wxUSE_STREAMS |