| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/common/cmdline.cpp |
| 3 | // Purpose: wxCmdLineParser implementation |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 05.01.00 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 2000 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> |
| 9 | // Licence: wxWindows licence |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | // For compilers that support precompilation, includes "wx.h". |
| 21 | #include "wx/wxprec.h" |
| 22 | |
| 23 | #ifdef __BORLANDC__ |
| 24 | #pragma hdrstop |
| 25 | #endif |
| 26 | |
| 27 | #ifndef WX_PRECOMP |
| 28 | #include "wx/dynarray.h" |
| 29 | #include "wx/string.h" |
| 30 | #include "wx/log.h" |
| 31 | #include "wx/intl.h" |
| 32 | #include "wx/app.h" |
| 33 | #endif //WX_PRECOMP |
| 34 | |
| 35 | #include "wx/cmdline.h" |
| 36 | |
| 37 | #if wxUSE_CMDLINE_PARSER |
| 38 | |
| 39 | #include <ctype.h> |
| 40 | |
| 41 | #include "wx/datetime.h" |
| 42 | #include "wx/msgout.h" |
| 43 | #include "wx/filename.h" |
| 44 | #include "wx/apptrait.h" |
| 45 | |
| 46 | // ---------------------------------------------------------------------------- |
| 47 | // private functions |
| 48 | // ---------------------------------------------------------------------------- |
| 49 | |
| 50 | static wxString GetTypeName(wxCmdLineParamType type); |
| 51 | |
| 52 | static wxString GetOptionName(wxString::const_iterator p, |
| 53 | wxString::const_iterator end, |
| 54 | const wxChar *allowedChars); |
| 55 | |
| 56 | static wxString GetShortOptionName(wxString::const_iterator p, |
| 57 | wxString::const_iterator end); |
| 58 | |
| 59 | static wxString GetLongOptionName(wxString::const_iterator p, |
| 60 | wxString::const_iterator end); |
| 61 | |
| 62 | // ---------------------------------------------------------------------------- |
| 63 | // private structs |
| 64 | // ---------------------------------------------------------------------------- |
| 65 | |
| 66 | // an internal representation of an option |
| 67 | struct wxCmdLineOption |
| 68 | { |
| 69 | wxCmdLineOption(wxCmdLineEntryType k, |
| 70 | const wxString& shrt, |
| 71 | const wxString& lng, |
| 72 | const wxString& desc, |
| 73 | wxCmdLineParamType typ, |
| 74 | int fl) |
| 75 | { |
| 76 | // wxCMD_LINE_USAGE_TEXT uses only description, shortName and longName is empty |
| 77 | #ifdef __WXDEBUG__ |
| 78 | if ( k != wxCMD_LINE_USAGE_TEXT ) |
| 79 | { |
| 80 | wxASSERT_MSG |
| 81 | ( |
| 82 | !shrt.empty() || !lng.empty(), |
| 83 | wxT("option should have at least one name") |
| 84 | ); |
| 85 | |
| 86 | wxASSERT_MSG |
| 87 | ( |
| 88 | GetShortOptionName(shrt.begin(), shrt.end()).Len() == shrt.Len(), |
| 89 | wxT("Short option contains invalid characters") |
| 90 | ); |
| 91 | |
| 92 | wxASSERT_MSG |
| 93 | ( |
| 94 | GetLongOptionName(lng.begin(), lng.end()).Len() == lng.Len(), |
| 95 | wxT("Long option contains invalid characters") |
| 96 | ); |
| 97 | } |
| 98 | #endif // __WXDEBUG__ |
| 99 | |
| 100 | |
| 101 | kind = k; |
| 102 | |
| 103 | shortName = shrt; |
| 104 | longName = lng; |
| 105 | description = desc; |
| 106 | |
| 107 | type = typ; |
| 108 | flags = fl; |
| 109 | |
| 110 | m_hasVal = false; |
| 111 | } |
| 112 | |
| 113 | // can't use union easily here, so just store all possible data fields, we |
| 114 | // don't waste much (might still use union later if the number of supported |
| 115 | // types increases, so always use the accessor functions and don't access |
| 116 | // the fields directly!) |
| 117 | |
| 118 | void Check(wxCmdLineParamType WXUNUSED_UNLESS_DEBUG(typ)) const |
| 119 | { |
| 120 | wxASSERT_MSG( type == typ, _T("type mismatch in wxCmdLineOption") ); |
| 121 | } |
| 122 | |
| 123 | double GetDoubleVal() const |
| 124 | { Check(wxCMD_LINE_VAL_DOUBLE); return m_doubleVal; } |
| 125 | long GetLongVal() const |
| 126 | { Check(wxCMD_LINE_VAL_NUMBER); return m_longVal; } |
| 127 | const wxString& GetStrVal() const |
| 128 | { Check(wxCMD_LINE_VAL_STRING); return m_strVal; } |
| 129 | #if wxUSE_DATETIME |
| 130 | const wxDateTime& GetDateVal() const |
| 131 | { Check(wxCMD_LINE_VAL_DATE); return m_dateVal; } |
| 132 | #endif // wxUSE_DATETIME |
| 133 | |
| 134 | void SetDoubleVal(double val) |
| 135 | { Check(wxCMD_LINE_VAL_DOUBLE); m_doubleVal = val; m_hasVal = true; } |
| 136 | void SetLongVal(long val) |
| 137 | { Check(wxCMD_LINE_VAL_NUMBER); m_longVal = val; m_hasVal = true; } |
| 138 | void SetStrVal(const wxString& val) |
| 139 | { Check(wxCMD_LINE_VAL_STRING); m_strVal = val; m_hasVal = true; } |
| 140 | #if wxUSE_DATETIME |
| 141 | void SetDateVal(const wxDateTime& val) |
| 142 | { Check(wxCMD_LINE_VAL_DATE); m_dateVal = val; m_hasVal = true; } |
| 143 | #endif // wxUSE_DATETIME |
| 144 | |
| 145 | void SetHasValue(bool hasValue = true) { m_hasVal = hasValue; } |
| 146 | bool HasValue() const { return m_hasVal; } |
| 147 | |
| 148 | public: |
| 149 | wxCmdLineEntryType kind; |
| 150 | wxString shortName, |
| 151 | longName, |
| 152 | description; |
| 153 | wxCmdLineParamType type; |
| 154 | int flags; |
| 155 | |
| 156 | private: |
| 157 | bool m_hasVal; |
| 158 | |
| 159 | double m_doubleVal; |
| 160 | long m_longVal; |
| 161 | wxString m_strVal; |
| 162 | #if wxUSE_DATETIME |
| 163 | wxDateTime m_dateVal; |
| 164 | #endif // wxUSE_DATETIME |
| 165 | }; |
| 166 | |
| 167 | struct wxCmdLineParam |
| 168 | { |
| 169 | wxCmdLineParam(const wxString& desc, |
| 170 | wxCmdLineParamType typ, |
| 171 | int fl) |
| 172 | : description(desc) |
| 173 | { |
| 174 | type = typ; |
| 175 | flags = fl; |
| 176 | } |
| 177 | |
| 178 | wxString description; |
| 179 | wxCmdLineParamType type; |
| 180 | int flags; |
| 181 | }; |
| 182 | |
| 183 | WX_DECLARE_OBJARRAY(wxCmdLineOption, wxArrayOptions); |
| 184 | WX_DECLARE_OBJARRAY(wxCmdLineParam, wxArrayParams); |
| 185 | |
| 186 | #include "wx/arrimpl.cpp" |
| 187 | |
| 188 | WX_DEFINE_OBJARRAY(wxArrayOptions) |
| 189 | WX_DEFINE_OBJARRAY(wxArrayParams) |
| 190 | |
| 191 | // the parser internal state |
| 192 | struct wxCmdLineParserData |
| 193 | { |
| 194 | // options |
| 195 | wxString m_switchChars; // characters which may start an option |
| 196 | bool m_enableLongOptions; // true if long options are enabled |
| 197 | wxString m_logo; // some extra text to show in Usage() |
| 198 | |
| 199 | // cmd line data |
| 200 | wxArrayString m_arguments; // == argv, argc == m_arguments.GetCount() |
| 201 | wxArrayOptions m_options; // all possible options and switches |
| 202 | wxArrayParams m_paramDesc; // description of all possible params |
| 203 | wxArrayString m_parameters; // all params found |
| 204 | |
| 205 | // methods |
| 206 | wxCmdLineParserData(); |
| 207 | void SetArguments(int argc, char **argv); |
| 208 | #if wxUSE_UNICODE |
| 209 | void SetArguments(int argc, wxChar **argv); |
| 210 | void SetArguments(int argc, const wxCmdLineArgsArray& argv); |
| 211 | #endif // wxUSE_UNICODE |
| 212 | void SetArguments(const wxString& cmdline); |
| 213 | |
| 214 | int FindOption(const wxString& name); |
| 215 | int FindOptionByLongName(const wxString& name); |
| 216 | }; |
| 217 | |
| 218 | // ============================================================================ |
| 219 | // implementation |
| 220 | // ============================================================================ |
| 221 | |
| 222 | // ---------------------------------------------------------------------------- |
| 223 | // wxCmdLineParserData |
| 224 | // ---------------------------------------------------------------------------- |
| 225 | |
| 226 | wxCmdLineParserData::wxCmdLineParserData() |
| 227 | { |
| 228 | m_enableLongOptions = true; |
| 229 | #ifdef __UNIX_LIKE__ |
| 230 | m_switchChars = _T("-"); |
| 231 | #else // !Unix |
| 232 | m_switchChars = _T("/-"); |
| 233 | #endif |
| 234 | } |
| 235 | |
| 236 | void wxCmdLineParserData::SetArguments(int argc, char **argv) |
| 237 | { |
| 238 | m_arguments.clear(); |
| 239 | |
| 240 | for ( int n = 0; n < argc; n++ ) |
| 241 | { |
| 242 | m_arguments.push_back(wxString::FromAscii(argv[n])); |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | #if wxUSE_UNICODE |
| 247 | |
| 248 | void wxCmdLineParserData::SetArguments(int argc, wxChar **argv) |
| 249 | { |
| 250 | m_arguments.clear(); |
| 251 | |
| 252 | for ( int n = 0; n < argc; n++ ) |
| 253 | { |
| 254 | m_arguments.push_back(argv[n]); |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | void wxCmdLineParserData::SetArguments(int WXUNUSED(argc), |
| 259 | const wxCmdLineArgsArray& argv) |
| 260 | { |
| 261 | m_arguments = argv.GetArguments(); |
| 262 | } |
| 263 | |
| 264 | #endif // wxUSE_UNICODE |
| 265 | |
| 266 | void wxCmdLineParserData::SetArguments(const wxString& cmdLine) |
| 267 | { |
| 268 | m_arguments.clear(); |
| 269 | |
| 270 | if(wxTheApp && wxTheApp->argc > 0) |
| 271 | m_arguments.push_back(wxTheApp->argv[0]); |
| 272 | else |
| 273 | m_arguments.push_back(wxEmptyString); |
| 274 | |
| 275 | wxArrayString args = wxCmdLineParser::ConvertStringToArgs(cmdLine); |
| 276 | |
| 277 | WX_APPEND_ARRAY(m_arguments, args); |
| 278 | } |
| 279 | |
| 280 | int wxCmdLineParserData::FindOption(const wxString& name) |
| 281 | { |
| 282 | if ( !name.empty() ) |
| 283 | { |
| 284 | size_t count = m_options.GetCount(); |
| 285 | for ( size_t n = 0; n < count; n++ ) |
| 286 | { |
| 287 | if ( m_options[n].shortName == name ) |
| 288 | { |
| 289 | // found |
| 290 | return n; |
| 291 | } |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | return wxNOT_FOUND; |
| 296 | } |
| 297 | |
| 298 | int wxCmdLineParserData::FindOptionByLongName(const wxString& name) |
| 299 | { |
| 300 | size_t count = m_options.GetCount(); |
| 301 | for ( size_t n = 0; n < count; n++ ) |
| 302 | { |
| 303 | if ( m_options[n].longName == name ) |
| 304 | { |
| 305 | // found |
| 306 | return n; |
| 307 | } |
| 308 | } |
| 309 | |
| 310 | return wxNOT_FOUND; |
| 311 | } |
| 312 | |
| 313 | // ---------------------------------------------------------------------------- |
| 314 | // construction and destruction |
| 315 | // ---------------------------------------------------------------------------- |
| 316 | |
| 317 | void wxCmdLineParser::Init() |
| 318 | { |
| 319 | m_data = new wxCmdLineParserData; |
| 320 | } |
| 321 | |
| 322 | void wxCmdLineParser::SetCmdLine(int argc, char **argv) |
| 323 | { |
| 324 | m_data->SetArguments(argc, argv); |
| 325 | } |
| 326 | |
| 327 | #if wxUSE_UNICODE |
| 328 | |
| 329 | void wxCmdLineParser::SetCmdLine(int argc, wxChar **argv) |
| 330 | { |
| 331 | m_data->SetArguments(argc, argv); |
| 332 | } |
| 333 | |
| 334 | void wxCmdLineParser::SetCmdLine(int argc, const wxCmdLineArgsArray& argv) |
| 335 | { |
| 336 | m_data->SetArguments(argc, argv); |
| 337 | } |
| 338 | |
| 339 | #endif // wxUSE_UNICODE |
| 340 | |
| 341 | void wxCmdLineParser::SetCmdLine(const wxString& cmdline) |
| 342 | { |
| 343 | m_data->SetArguments(cmdline); |
| 344 | } |
| 345 | |
| 346 | wxCmdLineParser::~wxCmdLineParser() |
| 347 | { |
| 348 | delete m_data; |
| 349 | } |
| 350 | |
| 351 | // ---------------------------------------------------------------------------- |
| 352 | // options |
| 353 | // ---------------------------------------------------------------------------- |
| 354 | |
| 355 | void wxCmdLineParser::SetSwitchChars(const wxString& switchChars) |
| 356 | { |
| 357 | m_data->m_switchChars = switchChars; |
| 358 | } |
| 359 | |
| 360 | void wxCmdLineParser::EnableLongOptions(bool enable) |
| 361 | { |
| 362 | m_data->m_enableLongOptions = enable; |
| 363 | } |
| 364 | |
| 365 | bool wxCmdLineParser::AreLongOptionsEnabled() const |
| 366 | { |
| 367 | return m_data->m_enableLongOptions; |
| 368 | } |
| 369 | |
| 370 | void wxCmdLineParser::SetLogo(const wxString& logo) |
| 371 | { |
| 372 | m_data->m_logo = logo; |
| 373 | } |
| 374 | |
| 375 | // ---------------------------------------------------------------------------- |
| 376 | // command line construction |
| 377 | // ---------------------------------------------------------------------------- |
| 378 | |
| 379 | void wxCmdLineParser::SetDesc(const wxCmdLineEntryDesc *desc) |
| 380 | { |
| 381 | for ( ;; desc++ ) |
| 382 | { |
| 383 | switch ( desc->kind ) |
| 384 | { |
| 385 | case wxCMD_LINE_SWITCH: |
| 386 | AddSwitch(desc->shortName, desc->longName, |
| 387 | wxGetTranslation(desc->description), |
| 388 | desc->flags); |
| 389 | break; |
| 390 | |
| 391 | case wxCMD_LINE_OPTION: |
| 392 | AddOption(desc->shortName, desc->longName, |
| 393 | wxGetTranslation(desc->description), |
| 394 | desc->type, desc->flags); |
| 395 | break; |
| 396 | |
| 397 | case wxCMD_LINE_PARAM: |
| 398 | AddParam(wxGetTranslation(desc->description), |
| 399 | desc->type, desc->flags); |
| 400 | break; |
| 401 | |
| 402 | case wxCMD_LINE_USAGE_TEXT: |
| 403 | AddUsageText(wxGetTranslation(desc->description)); |
| 404 | break; |
| 405 | |
| 406 | default: |
| 407 | wxFAIL_MSG( _T("unknown command line entry type") ); |
| 408 | // still fall through |
| 409 | |
| 410 | case wxCMD_LINE_NONE: |
| 411 | return; |
| 412 | } |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | void wxCmdLineParser::AddSwitch(const wxString& shortName, |
| 417 | const wxString& longName, |
| 418 | const wxString& desc, |
| 419 | int flags) |
| 420 | { |
| 421 | wxASSERT_MSG( m_data->FindOption(shortName) == wxNOT_FOUND, |
| 422 | _T("duplicate switch") ); |
| 423 | |
| 424 | wxCmdLineOption *option = new wxCmdLineOption(wxCMD_LINE_SWITCH, |
| 425 | shortName, longName, desc, |
| 426 | wxCMD_LINE_VAL_NONE, flags); |
| 427 | |
| 428 | m_data->m_options.Add(option); |
| 429 | } |
| 430 | |
| 431 | void wxCmdLineParser::AddOption(const wxString& shortName, |
| 432 | const wxString& longName, |
| 433 | const wxString& desc, |
| 434 | wxCmdLineParamType type, |
| 435 | int flags) |
| 436 | { |
| 437 | wxASSERT_MSG( m_data->FindOption(shortName) == wxNOT_FOUND, |
| 438 | _T("duplicate option") ); |
| 439 | |
| 440 | wxCmdLineOption *option = new wxCmdLineOption(wxCMD_LINE_OPTION, |
| 441 | shortName, longName, desc, |
| 442 | type, flags); |
| 443 | |
| 444 | m_data->m_options.Add(option); |
| 445 | } |
| 446 | |
| 447 | void wxCmdLineParser::AddParam(const wxString& desc, |
| 448 | wxCmdLineParamType type, |
| 449 | int flags) |
| 450 | { |
| 451 | // do some consistency checks: a required parameter can't follow an |
| 452 | // optional one and nothing should follow a parameter with MULTIPLE flag |
| 453 | #ifdef __WXDEBUG__ |
| 454 | if ( !m_data->m_paramDesc.IsEmpty() ) |
| 455 | { |
| 456 | wxCmdLineParam& param = m_data->m_paramDesc.Last(); |
| 457 | |
| 458 | wxASSERT_MSG( !(param.flags & wxCMD_LINE_PARAM_MULTIPLE), |
| 459 | _T("all parameters after the one with wxCMD_LINE_PARAM_MULTIPLE style will be ignored") ); |
| 460 | |
| 461 | if ( !(flags & wxCMD_LINE_PARAM_OPTIONAL) ) |
| 462 | { |
| 463 | wxASSERT_MSG( !(param.flags & wxCMD_LINE_PARAM_OPTIONAL), |
| 464 | _T("a required parameter can't follow an optional one") ); |
| 465 | } |
| 466 | } |
| 467 | #endif // Debug |
| 468 | |
| 469 | wxCmdLineParam *param = new wxCmdLineParam(desc, type, flags); |
| 470 | |
| 471 | m_data->m_paramDesc.Add(param); |
| 472 | } |
| 473 | |
| 474 | void wxCmdLineParser::AddUsageText(const wxString& text) |
| 475 | { |
| 476 | wxASSERT_MSG( !text.empty(), wxT("text can't be empty") ); |
| 477 | |
| 478 | wxCmdLineOption *option = new wxCmdLineOption(wxCMD_LINE_USAGE_TEXT, |
| 479 | wxEmptyString, wxEmptyString, |
| 480 | text, wxCMD_LINE_VAL_NONE, 0); |
| 481 | |
| 482 | m_data->m_options.Add(option); |
| 483 | } |
| 484 | |
| 485 | // ---------------------------------------------------------------------------- |
| 486 | // access to parse command line |
| 487 | // ---------------------------------------------------------------------------- |
| 488 | |
| 489 | bool wxCmdLineParser::Found(const wxString& name) const |
| 490 | { |
| 491 | int i = m_data->FindOption(name); |
| 492 | if ( i == wxNOT_FOUND ) |
| 493 | i = m_data->FindOptionByLongName(name); |
| 494 | |
| 495 | wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown switch") ); |
| 496 | |
| 497 | wxCmdLineOption& opt = m_data->m_options[(size_t)i]; |
| 498 | if ( !opt.HasValue() ) |
| 499 | return false; |
| 500 | |
| 501 | return true; |
| 502 | } |
| 503 | |
| 504 | bool wxCmdLineParser::Found(const wxString& name, wxString *value) const |
| 505 | { |
| 506 | int i = m_data->FindOption(name); |
| 507 | if ( i == wxNOT_FOUND ) |
| 508 | i = m_data->FindOptionByLongName(name); |
| 509 | |
| 510 | wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown option") ); |
| 511 | |
| 512 | wxCmdLineOption& opt = m_data->m_options[(size_t)i]; |
| 513 | if ( !opt.HasValue() ) |
| 514 | return false; |
| 515 | |
| 516 | wxCHECK_MSG( value, false, _T("NULL pointer in wxCmdLineOption::Found") ); |
| 517 | |
| 518 | *value = opt.GetStrVal(); |
| 519 | |
| 520 | return true; |
| 521 | } |
| 522 | |
| 523 | bool wxCmdLineParser::Found(const wxString& name, long *value) const |
| 524 | { |
| 525 | int i = m_data->FindOption(name); |
| 526 | if ( i == wxNOT_FOUND ) |
| 527 | i = m_data->FindOptionByLongName(name); |
| 528 | |
| 529 | wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown option") ); |
| 530 | |
| 531 | wxCmdLineOption& opt = m_data->m_options[(size_t)i]; |
| 532 | if ( !opt.HasValue() ) |
| 533 | return false; |
| 534 | |
| 535 | wxCHECK_MSG( value, false, _T("NULL pointer in wxCmdLineOption::Found") ); |
| 536 | |
| 537 | *value = opt.GetLongVal(); |
| 538 | |
| 539 | return true; |
| 540 | } |
| 541 | |
| 542 | bool wxCmdLineParser::Found(const wxString& name, double *value) const |
| 543 | { |
| 544 | int i = m_data->FindOption(name); |
| 545 | if ( i == wxNOT_FOUND ) |
| 546 | i = m_data->FindOptionByLongName(name); |
| 547 | |
| 548 | wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown option") ); |
| 549 | |
| 550 | wxCmdLineOption& opt = m_data->m_options[(size_t)i]; |
| 551 | if ( !opt.HasValue() ) |
| 552 | return false; |
| 553 | |
| 554 | wxCHECK_MSG( value, false, _T("NULL pointer in wxCmdLineOption::Found") ); |
| 555 | |
| 556 | *value = opt.GetDoubleVal(); |
| 557 | |
| 558 | return true; |
| 559 | } |
| 560 | |
| 561 | #if wxUSE_DATETIME |
| 562 | bool wxCmdLineParser::Found(const wxString& name, wxDateTime *value) const |
| 563 | { |
| 564 | int i = m_data->FindOption(name); |
| 565 | if ( i == wxNOT_FOUND ) |
| 566 | i = m_data->FindOptionByLongName(name); |
| 567 | |
| 568 | wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown option") ); |
| 569 | |
| 570 | wxCmdLineOption& opt = m_data->m_options[(size_t)i]; |
| 571 | if ( !opt.HasValue() ) |
| 572 | return false; |
| 573 | |
| 574 | wxCHECK_MSG( value, false, _T("NULL pointer in wxCmdLineOption::Found") ); |
| 575 | |
| 576 | *value = opt.GetDateVal(); |
| 577 | |
| 578 | return true; |
| 579 | } |
| 580 | #endif // wxUSE_DATETIME |
| 581 | |
| 582 | size_t wxCmdLineParser::GetParamCount() const |
| 583 | { |
| 584 | return m_data->m_parameters.size(); |
| 585 | } |
| 586 | |
| 587 | wxString wxCmdLineParser::GetParam(size_t n) const |
| 588 | { |
| 589 | wxCHECK_MSG( n < GetParamCount(), wxEmptyString, _T("invalid param index") ); |
| 590 | |
| 591 | return m_data->m_parameters[n]; |
| 592 | } |
| 593 | |
| 594 | // Resets switches and options |
| 595 | void wxCmdLineParser::Reset() |
| 596 | { |
| 597 | for ( size_t i = 0; i < m_data->m_options.GetCount(); i++ ) |
| 598 | { |
| 599 | wxCmdLineOption& opt = m_data->m_options[i]; |
| 600 | opt.SetHasValue(false); |
| 601 | } |
| 602 | } |
| 603 | |
| 604 | |
| 605 | // ---------------------------------------------------------------------------- |
| 606 | // the real work is done here |
| 607 | // ---------------------------------------------------------------------------- |
| 608 | |
| 609 | int wxCmdLineParser::Parse(bool showUsage) |
| 610 | { |
| 611 | bool maybeOption = true; // can the following arg be an option? |
| 612 | bool ok = true; // true until an error is detected |
| 613 | bool helpRequested = false; // true if "-h" was given |
| 614 | bool hadRepeatableParam = false; // true if found param with MULTIPLE flag |
| 615 | |
| 616 | size_t currentParam = 0; // the index in m_paramDesc |
| 617 | |
| 618 | size_t countParam = m_data->m_paramDesc.GetCount(); |
| 619 | wxString errorMsg; |
| 620 | |
| 621 | Reset(); |
| 622 | |
| 623 | // parse everything |
| 624 | wxString arg; |
| 625 | size_t count = m_data->m_arguments.size(); |
| 626 | for ( size_t n = 1; ok && (n < count); n++ ) // 0 is program name |
| 627 | { |
| 628 | arg = m_data->m_arguments[n]; |
| 629 | |
| 630 | // special case: "--" should be discarded and all following arguments |
| 631 | // should be considered as parameters, even if they start with '-' and |
| 632 | // not like options (this is POSIX-like) |
| 633 | if ( arg == _T("--") ) |
| 634 | { |
| 635 | maybeOption = false; |
| 636 | |
| 637 | continue; |
| 638 | } |
| 639 | |
| 640 | // empty argument or just '-' is not an option but a parameter |
| 641 | if ( maybeOption && arg.length() > 1 && |
| 642 | // FIXME-UTF8: use wc_str() after removing ANSI build |
| 643 | wxStrchr(m_data->m_switchChars.c_str(), arg[0u]) ) |
| 644 | { |
| 645 | bool isLong; |
| 646 | wxString name; |
| 647 | int optInd = wxNOT_FOUND; // init to suppress warnings |
| 648 | |
| 649 | // an option or a switch: find whether it's a long or a short one |
| 650 | if ( arg.length() >= 3 && arg[0u] == _T('-') && arg[1u] == _T('-') ) |
| 651 | { |
| 652 | // a long one |
| 653 | isLong = true; |
| 654 | |
| 655 | // Skip leading "--" |
| 656 | wxString::const_iterator p = arg.begin() + 2; |
| 657 | |
| 658 | bool longOptionsEnabled = AreLongOptionsEnabled(); |
| 659 | |
| 660 | name = GetLongOptionName(p, arg.end()); |
| 661 | |
| 662 | if (longOptionsEnabled) |
| 663 | { |
| 664 | optInd = m_data->FindOptionByLongName(name); |
| 665 | if ( optInd == wxNOT_FOUND ) |
| 666 | { |
| 667 | errorMsg << wxString::Format(_("Unknown long option '%s'"), name.c_str()) |
| 668 | << _T('\n'); |
| 669 | } |
| 670 | } |
| 671 | else |
| 672 | { |
| 673 | optInd = wxNOT_FOUND; // Sanity check |
| 674 | |
| 675 | // Print the argument including leading "--" |
| 676 | name.Prepend( wxT("--") ); |
| 677 | errorMsg << wxString::Format(_("Unknown option '%s'"), name.c_str()) |
| 678 | << _T('\n'); |
| 679 | } |
| 680 | |
| 681 | } |
| 682 | else // not a long option |
| 683 | { |
| 684 | isLong = false; |
| 685 | |
| 686 | // a short one: as they can be cumulated, we try to find the |
| 687 | // longest substring which is a valid option |
| 688 | wxString::const_iterator p = arg.begin() + 1; |
| 689 | |
| 690 | name = GetShortOptionName(p, arg.end()); |
| 691 | |
| 692 | size_t len = name.length(); |
| 693 | do |
| 694 | { |
| 695 | if ( len == 0 ) |
| 696 | { |
| 697 | // we couldn't find a valid option name in the |
| 698 | // beginning of this string |
| 699 | errorMsg << wxString::Format(_("Unknown option '%s'"), name.c_str()) |
| 700 | << _T('\n'); |
| 701 | |
| 702 | break; |
| 703 | } |
| 704 | else |
| 705 | { |
| 706 | optInd = m_data->FindOption(name.Left(len)); |
| 707 | |
| 708 | // will try with one character less the next time |
| 709 | len--; |
| 710 | } |
| 711 | } |
| 712 | while ( optInd == wxNOT_FOUND ); |
| 713 | |
| 714 | len++; // compensates extra len-- above |
| 715 | if ( (optInd != wxNOT_FOUND) && (len != name.length()) ) |
| 716 | { |
| 717 | // first of all, the option name is only part of this |
| 718 | // string |
| 719 | name = name.Left(len); |
| 720 | |
| 721 | // our option is only part of this argument, there is |
| 722 | // something else in it - it is either the value of this |
| 723 | // option or other switches if it is a switch |
| 724 | if ( m_data->m_options[(size_t)optInd].kind |
| 725 | == wxCMD_LINE_SWITCH ) |
| 726 | { |
| 727 | // pretend that all the rest of the argument is the |
| 728 | // next argument, in fact |
| 729 | wxString arg2 = arg[0u]; |
| 730 | arg2 += arg.Mid(len + 1); // +1 for leading '-' |
| 731 | |
| 732 | m_data->m_arguments.insert |
| 733 | (m_data->m_arguments.begin() + n + 1, arg2); |
| 734 | count++; |
| 735 | } |
| 736 | //else: it's our value, we'll deal with it below |
| 737 | } |
| 738 | } |
| 739 | |
| 740 | if ( optInd == wxNOT_FOUND ) |
| 741 | { |
| 742 | ok = false; |
| 743 | |
| 744 | continue; // will break, in fact |
| 745 | } |
| 746 | |
| 747 | // look at what follows: |
| 748 | |
| 749 | // +1 for leading '-' |
| 750 | wxString::const_iterator p = arg.begin() + 1 + name.length(); |
| 751 | wxString::const_iterator end = arg.end(); |
| 752 | |
| 753 | if ( isLong ) |
| 754 | ++p; // for another leading '-' |
| 755 | |
| 756 | wxCmdLineOption& opt = m_data->m_options[(size_t)optInd]; |
| 757 | if ( opt.kind == wxCMD_LINE_SWITCH ) |
| 758 | { |
| 759 | // we must check that there is no value following the switch |
| 760 | if ( p != arg.end() ) |
| 761 | { |
| 762 | errorMsg << wxString::Format(_("Unexpected characters following option '%s'."), name.c_str()) |
| 763 | << _T('\n'); |
| 764 | ok = false; |
| 765 | } |
| 766 | else // no value, as expected |
| 767 | { |
| 768 | // nothing more to do |
| 769 | opt.SetHasValue(); |
| 770 | |
| 771 | if ( opt.flags & wxCMD_LINE_OPTION_HELP ) |
| 772 | { |
| 773 | helpRequested = true; |
| 774 | |
| 775 | // it's not an error, but we still stop here |
| 776 | ok = false; |
| 777 | } |
| 778 | } |
| 779 | } |
| 780 | else // it's an option. not a switch |
| 781 | { |
| 782 | switch ( p == end ? '\0' : (*p).GetValue() ) |
| 783 | { |
| 784 | case '=': |
| 785 | case ':': |
| 786 | // the value follows |
| 787 | ++p; |
| 788 | break; |
| 789 | |
| 790 | case '\0': |
| 791 | // the value is in the next argument |
| 792 | if ( ++n == count ) |
| 793 | { |
| 794 | // ... but there is none |
| 795 | errorMsg << wxString::Format(_("Option '%s' requires a value."), |
| 796 | name.c_str()) |
| 797 | << _T('\n'); |
| 798 | |
| 799 | ok = false; |
| 800 | } |
| 801 | else |
| 802 | { |
| 803 | // ... take it from there |
| 804 | p = m_data->m_arguments[n].begin(); |
| 805 | end = m_data->m_arguments[n].end(); |
| 806 | } |
| 807 | break; |
| 808 | |
| 809 | default: |
| 810 | // the value is right here: this may be legal or |
| 811 | // not depending on the option style |
| 812 | if ( opt.flags & wxCMD_LINE_NEEDS_SEPARATOR ) |
| 813 | { |
| 814 | errorMsg << wxString::Format(_("Separator expected after the option '%s'."), |
| 815 | name.c_str()) |
| 816 | << _T('\n'); |
| 817 | |
| 818 | ok = false; |
| 819 | } |
| 820 | } |
| 821 | |
| 822 | if ( ok ) |
| 823 | { |
| 824 | wxString value(p, end); |
| 825 | switch ( opt.type ) |
| 826 | { |
| 827 | default: |
| 828 | wxFAIL_MSG( _T("unknown option type") ); |
| 829 | // still fall through |
| 830 | |
| 831 | case wxCMD_LINE_VAL_STRING: |
| 832 | opt.SetStrVal(value); |
| 833 | break; |
| 834 | |
| 835 | case wxCMD_LINE_VAL_NUMBER: |
| 836 | { |
| 837 | long val; |
| 838 | if ( value.ToLong(&val) ) |
| 839 | { |
| 840 | opt.SetLongVal(val); |
| 841 | } |
| 842 | else |
| 843 | { |
| 844 | errorMsg << wxString::Format(_("'%s' is not a correct numeric value for option '%s'."), |
| 845 | value.c_str(), name.c_str()) |
| 846 | << _T('\n'); |
| 847 | |
| 848 | ok = false; |
| 849 | } |
| 850 | } |
| 851 | break; |
| 852 | |
| 853 | case wxCMD_LINE_VAL_DOUBLE: |
| 854 | { |
| 855 | double val; |
| 856 | if ( value.ToDouble(&val) ) |
| 857 | { |
| 858 | opt.SetDoubleVal(val); |
| 859 | } |
| 860 | else |
| 861 | { |
| 862 | errorMsg << wxString::Format(_("'%s' is not a correct numeric value for option '%s'."), |
| 863 | value.c_str(), name.c_str()) |
| 864 | << _T('\n'); |
| 865 | |
| 866 | ok = false; |
| 867 | } |
| 868 | } |
| 869 | break; |
| 870 | |
| 871 | #if wxUSE_DATETIME |
| 872 | case wxCMD_LINE_VAL_DATE: |
| 873 | { |
| 874 | wxDateTime dt; |
| 875 | const char *res = dt.ParseDate(value); |
| 876 | if ( !res || *res ) |
| 877 | { |
| 878 | errorMsg << wxString::Format(_("Option '%s': '%s' cannot be converted to a date."), |
| 879 | name.c_str(), value.c_str()) |
| 880 | << _T('\n'); |
| 881 | |
| 882 | ok = false; |
| 883 | } |
| 884 | else |
| 885 | { |
| 886 | opt.SetDateVal(dt); |
| 887 | } |
| 888 | } |
| 889 | break; |
| 890 | #endif // wxUSE_DATETIME |
| 891 | } |
| 892 | } |
| 893 | } |
| 894 | } |
| 895 | else // not an option, must be a parameter |
| 896 | { |
| 897 | if ( currentParam < countParam ) |
| 898 | { |
| 899 | wxCmdLineParam& param = m_data->m_paramDesc[currentParam]; |
| 900 | |
| 901 | // TODO check the param type |
| 902 | |
| 903 | m_data->m_parameters.push_back(arg); |
| 904 | |
| 905 | if ( !(param.flags & wxCMD_LINE_PARAM_MULTIPLE) ) |
| 906 | { |
| 907 | currentParam++; |
| 908 | } |
| 909 | else |
| 910 | { |
| 911 | wxASSERT_MSG( currentParam == countParam - 1, |
| 912 | _T("all parameters after the one with wxCMD_LINE_PARAM_MULTIPLE style are ignored") ); |
| 913 | |
| 914 | // remember that we did have this last repeatable parameter |
| 915 | hadRepeatableParam = true; |
| 916 | } |
| 917 | } |
| 918 | else |
| 919 | { |
| 920 | errorMsg << wxString::Format(_("Unexpected parameter '%s'"), arg.c_str()) |
| 921 | << _T('\n'); |
| 922 | |
| 923 | ok = false; |
| 924 | } |
| 925 | } |
| 926 | } |
| 927 | |
| 928 | // verify that all mandatory options were given |
| 929 | if ( ok ) |
| 930 | { |
| 931 | size_t countOpt = m_data->m_options.GetCount(); |
| 932 | for ( size_t n = 0; ok && (n < countOpt); n++ ) |
| 933 | { |
| 934 | wxCmdLineOption& opt = m_data->m_options[n]; |
| 935 | if ( (opt.flags & wxCMD_LINE_OPTION_MANDATORY) && !opt.HasValue() ) |
| 936 | { |
| 937 | wxString optName; |
| 938 | if ( !opt.longName ) |
| 939 | { |
| 940 | optName = opt.shortName; |
| 941 | } |
| 942 | else |
| 943 | { |
| 944 | if ( AreLongOptionsEnabled() ) |
| 945 | { |
| 946 | optName.Printf( _("%s (or %s)"), |
| 947 | opt.shortName.c_str(), |
| 948 | opt.longName.c_str() ); |
| 949 | } |
| 950 | else |
| 951 | { |
| 952 | optName.Printf( wxT("%s"), |
| 953 | opt.shortName.c_str() ); |
| 954 | } |
| 955 | } |
| 956 | |
| 957 | errorMsg << wxString::Format(_("The value for the option '%s' must be specified."), |
| 958 | optName.c_str()) |
| 959 | << _T('\n'); |
| 960 | |
| 961 | ok = false; |
| 962 | } |
| 963 | } |
| 964 | |
| 965 | for ( ; ok && (currentParam < countParam); currentParam++ ) |
| 966 | { |
| 967 | wxCmdLineParam& param = m_data->m_paramDesc[currentParam]; |
| 968 | if ( (currentParam == countParam - 1) && |
| 969 | (param.flags & wxCMD_LINE_PARAM_MULTIPLE) && |
| 970 | hadRepeatableParam ) |
| 971 | { |
| 972 | // special case: currentParam wasn't incremented, but we did |
| 973 | // have it, so don't give error |
| 974 | continue; |
| 975 | } |
| 976 | |
| 977 | if ( !(param.flags & wxCMD_LINE_PARAM_OPTIONAL) ) |
| 978 | { |
| 979 | errorMsg << wxString::Format(_("The required parameter '%s' was not specified."), |
| 980 | param.description.c_str()) |
| 981 | << _T('\n'); |
| 982 | |
| 983 | ok = false; |
| 984 | } |
| 985 | } |
| 986 | } |
| 987 | |
| 988 | // if there was an error during parsing the command line, show this error |
| 989 | // and also the usage message if it had been requested |
| 990 | if ( !ok && (!errorMsg.empty() || (helpRequested && showUsage)) ) |
| 991 | { |
| 992 | wxMessageOutput* msgOut = wxMessageOutput::Get(); |
| 993 | if ( msgOut ) |
| 994 | { |
| 995 | wxString usage; |
| 996 | if ( showUsage ) |
| 997 | usage = GetUsageString(); |
| 998 | |
| 999 | msgOut->Printf( wxT("%s%s"), usage.c_str(), errorMsg.c_str() ); |
| 1000 | } |
| 1001 | else |
| 1002 | { |
| 1003 | wxFAIL_MSG( _T("no wxMessageOutput object?") ); |
| 1004 | } |
| 1005 | } |
| 1006 | |
| 1007 | return ok ? 0 : helpRequested ? -1 : 1; |
| 1008 | } |
| 1009 | |
| 1010 | // ---------------------------------------------------------------------------- |
| 1011 | // give the usage message |
| 1012 | // ---------------------------------------------------------------------------- |
| 1013 | |
| 1014 | void wxCmdLineParser::Usage() const |
| 1015 | { |
| 1016 | wxMessageOutput* msgOut = wxMessageOutput::Get(); |
| 1017 | if ( msgOut ) |
| 1018 | { |
| 1019 | msgOut->Printf( wxT("%s"), GetUsageString().c_str() ); |
| 1020 | } |
| 1021 | else |
| 1022 | { |
| 1023 | wxFAIL_MSG( _T("no wxMessageOutput object?") ); |
| 1024 | } |
| 1025 | } |
| 1026 | |
| 1027 | wxString wxCmdLineParser::GetUsageString() const |
| 1028 | { |
| 1029 | wxString appname; |
| 1030 | if ( m_data->m_arguments.empty() ) |
| 1031 | { |
| 1032 | if ( wxTheApp ) |
| 1033 | appname = wxTheApp->GetAppName(); |
| 1034 | } |
| 1035 | else // use argv[0] |
| 1036 | { |
| 1037 | appname = wxFileName(m_data->m_arguments[0]).GetName(); |
| 1038 | } |
| 1039 | |
| 1040 | // we construct the brief cmd line desc on the fly, but not the detailed |
| 1041 | // help message below because we want to align the options descriptions |
| 1042 | // and for this we must first know the longest one of them |
| 1043 | wxString usage; |
| 1044 | wxArrayString namesOptions, descOptions; |
| 1045 | |
| 1046 | if ( !m_data->m_logo.empty() ) |
| 1047 | { |
| 1048 | usage << m_data->m_logo << _T('\n'); |
| 1049 | } |
| 1050 | |
| 1051 | usage << wxString::Format(_("Usage: %s"), appname.c_str()); |
| 1052 | |
| 1053 | // the switch char is usually '-' but this can be changed with |
| 1054 | // SetSwitchChars() and then the first one of possible chars is used |
| 1055 | wxChar chSwitch = !m_data->m_switchChars ? _T('-') |
| 1056 | : m_data->m_switchChars[0u]; |
| 1057 | |
| 1058 | bool areLongOptionsEnabled = AreLongOptionsEnabled(); |
| 1059 | size_t n, count = m_data->m_options.GetCount(); |
| 1060 | for ( n = 0; n < count; n++ ) |
| 1061 | { |
| 1062 | wxCmdLineOption& opt = m_data->m_options[n]; |
| 1063 | wxString option; |
| 1064 | |
| 1065 | if ( opt.kind != wxCMD_LINE_USAGE_TEXT ) |
| 1066 | { |
| 1067 | usage << _T(' '); |
| 1068 | if ( !(opt.flags & wxCMD_LINE_OPTION_MANDATORY) ) |
| 1069 | { |
| 1070 | usage << _T('['); |
| 1071 | } |
| 1072 | |
| 1073 | if ( !opt.shortName.empty() ) |
| 1074 | { |
| 1075 | usage << chSwitch << opt.shortName; |
| 1076 | } |
| 1077 | else if ( areLongOptionsEnabled && !opt.longName.empty() ) |
| 1078 | { |
| 1079 | usage << _T("--") << opt.longName; |
| 1080 | } |
| 1081 | else |
| 1082 | { |
| 1083 | if (!opt.longName.empty()) |
| 1084 | { |
| 1085 | wxFAIL_MSG( wxT("option with only a long name while long ") |
| 1086 | wxT("options are disabled") ); |
| 1087 | } |
| 1088 | else |
| 1089 | { |
| 1090 | wxFAIL_MSG( _T("option without neither short nor long name") ); |
| 1091 | } |
| 1092 | } |
| 1093 | |
| 1094 | if ( !opt.shortName.empty() ) |
| 1095 | { |
| 1096 | option << _T(" ") << chSwitch << opt.shortName; |
| 1097 | } |
| 1098 | |
| 1099 | if ( areLongOptionsEnabled && !opt.longName.empty() ) |
| 1100 | { |
| 1101 | option << (option.empty() ? _T(" ") : _T(", ")) |
| 1102 | << _T("--") << opt.longName; |
| 1103 | } |
| 1104 | |
| 1105 | if ( opt.kind != wxCMD_LINE_SWITCH ) |
| 1106 | { |
| 1107 | wxString val; |
| 1108 | val << _T('<') << GetTypeName(opt.type) << _T('>'); |
| 1109 | usage << _T(' ') << val; |
| 1110 | option << (!opt.longName ? _T(':') : _T('=')) << val; |
| 1111 | } |
| 1112 | |
| 1113 | if ( !(opt.flags & wxCMD_LINE_OPTION_MANDATORY) ) |
| 1114 | { |
| 1115 | usage << _T(']'); |
| 1116 | } |
| 1117 | } |
| 1118 | |
| 1119 | namesOptions.push_back(option); |
| 1120 | descOptions.push_back(opt.description); |
| 1121 | } |
| 1122 | |
| 1123 | count = m_data->m_paramDesc.GetCount(); |
| 1124 | for ( n = 0; n < count; n++ ) |
| 1125 | { |
| 1126 | wxCmdLineParam& param = m_data->m_paramDesc[n]; |
| 1127 | |
| 1128 | usage << _T(' '); |
| 1129 | if ( param.flags & wxCMD_LINE_PARAM_OPTIONAL ) |
| 1130 | { |
| 1131 | usage << _T('['); |
| 1132 | } |
| 1133 | |
| 1134 | usage << param.description; |
| 1135 | |
| 1136 | if ( param.flags & wxCMD_LINE_PARAM_MULTIPLE ) |
| 1137 | { |
| 1138 | usage << _T("..."); |
| 1139 | } |
| 1140 | |
| 1141 | if ( param.flags & wxCMD_LINE_PARAM_OPTIONAL ) |
| 1142 | { |
| 1143 | usage << _T(']'); |
| 1144 | } |
| 1145 | } |
| 1146 | |
| 1147 | usage << _T('\n'); |
| 1148 | |
| 1149 | // set to number of our own options, not counting the standard ones |
| 1150 | count = namesOptions.size(); |
| 1151 | |
| 1152 | // get option names & descriptions for standard options, if any: |
| 1153 | wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL; |
| 1154 | wxString stdDesc; |
| 1155 | if ( traits ) |
| 1156 | stdDesc = traits->GetStandardCmdLineOptions(namesOptions, descOptions); |
| 1157 | |
| 1158 | // now construct the detailed help message |
| 1159 | size_t len, lenMax = 0; |
| 1160 | for ( n = 0; n < namesOptions.size(); n++ ) |
| 1161 | { |
| 1162 | len = namesOptions[n].length(); |
| 1163 | if ( len > lenMax ) |
| 1164 | lenMax = len; |
| 1165 | } |
| 1166 | |
| 1167 | for ( n = 0; n < namesOptions.size(); n++ ) |
| 1168 | { |
| 1169 | if ( n == count ) |
| 1170 | usage << _T('\n') << stdDesc; |
| 1171 | |
| 1172 | len = namesOptions[n].length(); |
| 1173 | // desc contains text if name is empty |
| 1174 | if (len == 0) |
| 1175 | { |
| 1176 | usage << descOptions[n] << _T('\n'); |
| 1177 | } |
| 1178 | else |
| 1179 | { |
| 1180 | usage << namesOptions[n] |
| 1181 | << wxString(_T(' '), lenMax - len) << _T('\t') |
| 1182 | << descOptions[n] |
| 1183 | << _T('\n'); |
| 1184 | } |
| 1185 | } |
| 1186 | |
| 1187 | return usage; |
| 1188 | } |
| 1189 | |
| 1190 | // ---------------------------------------------------------------------------- |
| 1191 | // private functions |
| 1192 | // ---------------------------------------------------------------------------- |
| 1193 | |
| 1194 | static wxString GetTypeName(wxCmdLineParamType type) |
| 1195 | { |
| 1196 | wxString s; |
| 1197 | switch ( type ) |
| 1198 | { |
| 1199 | default: |
| 1200 | wxFAIL_MSG( _T("unknown option type") ); |
| 1201 | // still fall through |
| 1202 | |
| 1203 | case wxCMD_LINE_VAL_STRING: |
| 1204 | s = _("str"); |
| 1205 | break; |
| 1206 | |
| 1207 | case wxCMD_LINE_VAL_NUMBER: |
| 1208 | s = _("num"); |
| 1209 | break; |
| 1210 | |
| 1211 | case wxCMD_LINE_VAL_DOUBLE: |
| 1212 | s = _("double"); |
| 1213 | break; |
| 1214 | |
| 1215 | case wxCMD_LINE_VAL_DATE: |
| 1216 | s = _("date"); |
| 1217 | break; |
| 1218 | } |
| 1219 | |
| 1220 | return s; |
| 1221 | } |
| 1222 | |
| 1223 | /* |
| 1224 | Returns a string which is equal to the string pointed to by p, but up to the |
| 1225 | point where p contains an character that's not allowed. |
| 1226 | Allowable characters are letters and numbers, and characters pointed to by |
| 1227 | the parameter allowedChars. |
| 1228 | |
| 1229 | For example, if p points to "abcde-@-_", and allowedChars is "-_", |
| 1230 | this function returns "abcde-". |
| 1231 | */ |
| 1232 | static wxString GetOptionName(wxString::const_iterator p, |
| 1233 | wxString::const_iterator end, |
| 1234 | const wxChar *allowedChars) |
| 1235 | { |
| 1236 | wxString argName; |
| 1237 | |
| 1238 | while ( p != end && (wxIsalnum(*p) || wxStrchr(allowedChars, *p)) ) |
| 1239 | { |
| 1240 | argName += *p++; |
| 1241 | } |
| 1242 | |
| 1243 | return argName; |
| 1244 | } |
| 1245 | |
| 1246 | // Besides alphanumeric characters, short and long options can |
| 1247 | // have other characters. |
| 1248 | |
| 1249 | // A short option additionally can have these |
| 1250 | #define wxCMD_LINE_CHARS_ALLOWED_BY_SHORT_OPTION wxT("_?") |
| 1251 | |
| 1252 | // A long option can have the same characters as a short option and a '-'. |
| 1253 | #define wxCMD_LINE_CHARS_ALLOWED_BY_LONG_OPTION \ |
| 1254 | wxCMD_LINE_CHARS_ALLOWED_BY_SHORT_OPTION wxT("-") |
| 1255 | |
| 1256 | static wxString GetShortOptionName(wxString::const_iterator p, |
| 1257 | wxString::const_iterator end) |
| 1258 | { |
| 1259 | return GetOptionName(p, end, wxCMD_LINE_CHARS_ALLOWED_BY_SHORT_OPTION); |
| 1260 | } |
| 1261 | |
| 1262 | static wxString GetLongOptionName(wxString::const_iterator p, |
| 1263 | wxString::const_iterator end) |
| 1264 | { |
| 1265 | return GetOptionName(p, end, wxCMD_LINE_CHARS_ALLOWED_BY_LONG_OPTION); |
| 1266 | } |
| 1267 | |
| 1268 | #endif // wxUSE_CMDLINE_PARSER |
| 1269 | |
| 1270 | // ---------------------------------------------------------------------------- |
| 1271 | // global functions |
| 1272 | // ---------------------------------------------------------------------------- |
| 1273 | |
| 1274 | /* |
| 1275 | This function is mainly used under Windows (as under Unix we always get the |
| 1276 | command line arguments as argc/argv anyhow) and so it tries to follow |
| 1277 | Windows conventions for the command line handling, not Unix ones. For |
| 1278 | instance, backslash is not special except when it precedes double quote when |
| 1279 | it does quote it. |
| 1280 | */ |
| 1281 | |
| 1282 | /* static */ |
| 1283 | wxArrayString |
| 1284 | wxCmdLineParser::ConvertStringToArgs(const wxString& cmdline, |
| 1285 | wxCmdLineSplitType type) |
| 1286 | { |
| 1287 | wxArrayString args; |
| 1288 | |
| 1289 | wxString arg; |
| 1290 | arg.reserve(1024); |
| 1291 | |
| 1292 | const wxString::const_iterator end = cmdline.end(); |
| 1293 | wxString::const_iterator p = cmdline.begin(); |
| 1294 | |
| 1295 | for ( ;; ) |
| 1296 | { |
| 1297 | // skip white space |
| 1298 | while ( p != end && (*p == ' ' || *p == '\t') ) |
| 1299 | ++p; |
| 1300 | |
| 1301 | // anything left? |
| 1302 | if ( p == end ) |
| 1303 | break; |
| 1304 | |
| 1305 | // parse this parameter |
| 1306 | bool lastBS = false, |
| 1307 | isInsideQuotes = false; |
| 1308 | wxChar chDelim = '\0'; |
| 1309 | for ( arg.clear(); p != end; ++p ) |
| 1310 | { |
| 1311 | const wxChar ch = *p; |
| 1312 | |
| 1313 | if ( type == wxCMD_LINE_SPLIT_DOS ) |
| 1314 | { |
| 1315 | if ( ch == '"' ) |
| 1316 | { |
| 1317 | if ( !lastBS ) |
| 1318 | { |
| 1319 | isInsideQuotes = !isInsideQuotes; |
| 1320 | |
| 1321 | // don't put quote in arg |
| 1322 | continue; |
| 1323 | } |
| 1324 | //else: quote has no special meaning but the backslash |
| 1325 | // still remains -- makes no sense but this is what |
| 1326 | // Windows does |
| 1327 | } |
| 1328 | // note that backslash does *not* quote the space, only quotes do |
| 1329 | else if ( !isInsideQuotes && (ch == ' ' || ch == '\t') ) |
| 1330 | { |
| 1331 | ++p; // skip this space anyhow |
| 1332 | break; |
| 1333 | } |
| 1334 | |
| 1335 | lastBS = !lastBS && ch == '\\'; |
| 1336 | } |
| 1337 | else // type == wxCMD_LINE_SPLIT_UNIX |
| 1338 | { |
| 1339 | if ( !lastBS ) |
| 1340 | { |
| 1341 | if ( isInsideQuotes ) |
| 1342 | { |
| 1343 | if ( ch == chDelim ) |
| 1344 | { |
| 1345 | isInsideQuotes = false; |
| 1346 | |
| 1347 | continue; // don't use the quote itself |
| 1348 | } |
| 1349 | } |
| 1350 | else // not in quotes and not escaped |
| 1351 | { |
| 1352 | if ( ch == '\'' || ch == '"' ) |
| 1353 | { |
| 1354 | isInsideQuotes = true; |
| 1355 | chDelim = ch; |
| 1356 | |
| 1357 | continue; // don't use the quote itself |
| 1358 | } |
| 1359 | |
| 1360 | if ( ch == ' ' || ch == '\t' ) |
| 1361 | { |
| 1362 | ++p; // skip this space anyhow |
| 1363 | break; |
| 1364 | } |
| 1365 | } |
| 1366 | |
| 1367 | lastBS = ch == '\\'; |
| 1368 | if ( lastBS ) |
| 1369 | continue; |
| 1370 | } |
| 1371 | else // escaped by backslash, just use as is |
| 1372 | { |
| 1373 | lastBS = false; |
| 1374 | } |
| 1375 | } |
| 1376 | |
| 1377 | arg += ch; |
| 1378 | } |
| 1379 | |
| 1380 | args.push_back(arg); |
| 1381 | } |
| 1382 | |
| 1383 | return args; |
| 1384 | } |