X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a4761b4c08e6272c69bd242b3323ab47dbbc8902..534f87c6c442aa2710a44352bd26d215fec1714b:/src/common/cmdline.cpp diff --git a/src/common/cmdline.cpp b/src/common/cmdline.cpp index 95afbfe27f..e8892831ac 100644 --- a/src/common/cmdline.cpp +++ b/src/common/cmdline.cpp @@ -4,7 +4,6 @@ // Author: Vadim Zeitlin // Modified by: // Created: 05.01.00 -// RCS-ID: $Id$ // Copyright: (c) 2000 Vadim Zeitlin // Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// @@ -37,11 +36,13 @@ #if wxUSE_CMDLINE_PARSER #include +#include // for LC_ALL #include "wx/datetime.h" #include "wx/msgout.h" #include "wx/filename.h" #include "wx/apptrait.h" +#include "wx/scopeguard.h" // ---------------------------------------------------------------------------- // private functions @@ -74,7 +75,6 @@ struct wxCmdLineOption int fl) { // wxCMD_LINE_USAGE_TEXT uses only description, shortName and longName is empty - #ifdef __WXDEBUG__ if ( k != wxCMD_LINE_USAGE_TEXT ) { wxASSERT_MSG @@ -95,8 +95,6 @@ struct wxCmdLineOption wxT("Long option contains invalid characters") ); } - #endif // __WXDEBUG__ - kind = k; @@ -107,7 +105,7 @@ struct wxCmdLineOption type = typ; flags = fl; - m_hasVal = false; + Reset(); } // can't use union easily here, so just store all possible data fields, we @@ -117,7 +115,7 @@ struct wxCmdLineOption void Check(wxCmdLineParamType WXUNUSED_UNLESS_DEBUG(typ)) const { - wxASSERT_MSG( type == typ, _T("type mismatch in wxCmdLineOption") ); + wxASSERT_MSG( type == typ, wxT("type mismatch in wxCmdLineOption") ); } double GetDoubleVal() const @@ -142,9 +140,19 @@ struct wxCmdLineOption { Check(wxCMD_LINE_VAL_DATE); m_dateVal = val; m_hasVal = true; } #endif // wxUSE_DATETIME - void SetHasValue(bool hasValue = true) { m_hasVal = hasValue; } + void SetHasValue() { m_hasVal = true; } bool HasValue() const { return m_hasVal; } + void SetNegated() { m_isNegated = true; } + bool IsNegated() const { return m_isNegated; } + + // Reset to the initial state, called before parsing another command line. + void Reset() + { + m_hasVal = + m_isNegated = false; + } + public: wxCmdLineEntryType kind; wxString shortName, @@ -155,6 +163,7 @@ public: private: bool m_hasVal; + bool m_isNegated; double m_doubleVal; long m_longVal; @@ -227,19 +236,51 @@ wxCmdLineParserData::wxCmdLineParserData() { m_enableLongOptions = true; #ifdef __UNIX_LIKE__ - m_switchChars = _T("-"); + m_switchChars = wxT("-"); #else // !Unix - m_switchChars = _T("/-"); + m_switchChars = wxT("/-"); #endif } +namespace +{ + +// Small helper function setting locale for all categories. +// +// We define it because wxSetlocale() can't be easily used with wxScopeGuard as +// it has several overloads -- while this one can. +inline char *SetAllLocaleFacets(const char *loc) +{ + return wxSetlocale(LC_ALL, loc); +} + +} // private namespace + void wxCmdLineParserData::SetArguments(int argc, char **argv) { m_arguments.clear(); + // Command-line arguments are supposed to be in the user locale encoding + // (what else?) but wxLocale probably wasn't initialized yet as we're + // called early during the program startup and so our locale might not have + // been set from the environment yet. To work around this problem we + // temporarily change the locale here. The only drawback is that changing + // the locale is thread-unsafe but precisely because we're called so early + // it's hopefully safe to assume that no other threads had been created yet. + char * const locOld = SetAllLocaleFacets(""); + wxON_BLOCK_EXIT1( SetAllLocaleFacets, locOld ); + for ( int n = 0; n < argc; n++ ) { - m_arguments.push_back(wxString::FromAscii(argv[n])); + // try to interpret the string as being in the current locale + wxString arg(argv[n]); + + // but just in case we guessed wrongly and the conversion failed, do + // try to salvage at least something + if ( arg.empty() && argv[n][0] != '\0' ) + arg = wxString(argv[n], wxConvISO8859_1); + + m_arguments.push_back(arg); } } @@ -404,7 +445,7 @@ void wxCmdLineParser::SetDesc(const wxCmdLineEntryDesc *desc) break; default: - wxFAIL_MSG( _T("unknown command line entry type") ); + wxFAIL_MSG( wxT("unknown command line entry type") ); // still fall through case wxCMD_LINE_NONE: @@ -419,7 +460,7 @@ void wxCmdLineParser::AddSwitch(const wxString& shortName, int flags) { wxASSERT_MSG( m_data->FindOption(shortName) == wxNOT_FOUND, - _T("duplicate switch") ); + wxT("duplicate switch") ); wxCmdLineOption *option = new wxCmdLineOption(wxCMD_LINE_SWITCH, shortName, longName, desc, @@ -435,7 +476,7 @@ void wxCmdLineParser::AddOption(const wxString& shortName, int flags) { wxASSERT_MSG( m_data->FindOption(shortName) == wxNOT_FOUND, - _T("duplicate option") ); + wxT("duplicate option") ); wxCmdLineOption *option = new wxCmdLineOption(wxCMD_LINE_OPTION, shortName, longName, desc, @@ -450,21 +491,21 @@ void wxCmdLineParser::AddParam(const wxString& desc, { // do some consistency checks: a required parameter can't follow an // optional one and nothing should follow a parameter with MULTIPLE flag -#ifdef __WXDEBUG__ +#if wxDEBUG_LEVEL if ( !m_data->m_paramDesc.IsEmpty() ) { wxCmdLineParam& param = m_data->m_paramDesc.Last(); wxASSERT_MSG( !(param.flags & wxCMD_LINE_PARAM_MULTIPLE), - _T("all parameters after the one with wxCMD_LINE_PARAM_MULTIPLE style will be ignored") ); + wxT("all parameters after the one with wxCMD_LINE_PARAM_MULTIPLE style will be ignored") ); if ( !(flags & wxCMD_LINE_PARAM_OPTIONAL) ) { wxASSERT_MSG( !(param.flags & wxCMD_LINE_PARAM_OPTIONAL), - _T("a required parameter can't follow an optional one") ); + wxT("a required parameter can't follow an optional one") ); } } -#endif // Debug +#endif // wxDEBUG_LEVEL wxCmdLineParam *param = new wxCmdLineParam(desc, type, flags); @@ -487,18 +528,23 @@ void wxCmdLineParser::AddUsageText(const wxString& text) // ---------------------------------------------------------------------------- bool wxCmdLineParser::Found(const wxString& name) const +{ + return FoundSwitch(name) != wxCMD_SWITCH_NOT_FOUND; +} + +wxCmdLineSwitchState wxCmdLineParser::FoundSwitch(const wxString& name) const { int i = m_data->FindOption(name); if ( i == wxNOT_FOUND ) i = m_data->FindOptionByLongName(name); - wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown switch") ); + wxCHECK_MSG( i != wxNOT_FOUND, wxCMD_SWITCH_NOT_FOUND, wxT("unknown switch") ); wxCmdLineOption& opt = m_data->m_options[(size_t)i]; if ( !opt.HasValue() ) - return false; + return wxCMD_SWITCH_NOT_FOUND; - return true; + return opt.IsNegated() ? wxCMD_SWITCH_OFF : wxCMD_SWITCH_ON; } bool wxCmdLineParser::Found(const wxString& name, wxString *value) const @@ -507,13 +553,13 @@ bool wxCmdLineParser::Found(const wxString& name, wxString *value) const if ( i == wxNOT_FOUND ) i = m_data->FindOptionByLongName(name); - wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown option") ); + wxCHECK_MSG( i != wxNOT_FOUND, false, wxT("unknown option") ); wxCmdLineOption& opt = m_data->m_options[(size_t)i]; if ( !opt.HasValue() ) return false; - wxCHECK_MSG( value, false, _T("NULL pointer in wxCmdLineOption::Found") ); + wxCHECK_MSG( value, false, wxT("NULL pointer in wxCmdLineOption::Found") ); *value = opt.GetStrVal(); @@ -526,13 +572,13 @@ bool wxCmdLineParser::Found(const wxString& name, long *value) const if ( i == wxNOT_FOUND ) i = m_data->FindOptionByLongName(name); - wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown option") ); + wxCHECK_MSG( i != wxNOT_FOUND, false, wxT("unknown option") ); wxCmdLineOption& opt = m_data->m_options[(size_t)i]; if ( !opt.HasValue() ) return false; - wxCHECK_MSG( value, false, _T("NULL pointer in wxCmdLineOption::Found") ); + wxCHECK_MSG( value, false, wxT("NULL pointer in wxCmdLineOption::Found") ); *value = opt.GetLongVal(); @@ -545,13 +591,13 @@ bool wxCmdLineParser::Found(const wxString& name, double *value) const if ( i == wxNOT_FOUND ) i = m_data->FindOptionByLongName(name); - wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown option") ); + wxCHECK_MSG( i != wxNOT_FOUND, false, wxT("unknown option") ); wxCmdLineOption& opt = m_data->m_options[(size_t)i]; if ( !opt.HasValue() ) return false; - wxCHECK_MSG( value, false, _T("NULL pointer in wxCmdLineOption::Found") ); + wxCHECK_MSG( value, false, wxT("NULL pointer in wxCmdLineOption::Found") ); *value = opt.GetDoubleVal(); @@ -565,13 +611,13 @@ bool wxCmdLineParser::Found(const wxString& name, wxDateTime *value) const if ( i == wxNOT_FOUND ) i = m_data->FindOptionByLongName(name); - wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown option") ); + wxCHECK_MSG( i != wxNOT_FOUND, false, wxT("unknown option") ); wxCmdLineOption& opt = m_data->m_options[(size_t)i]; if ( !opt.HasValue() ) return false; - wxCHECK_MSG( value, false, _T("NULL pointer in wxCmdLineOption::Found") ); + wxCHECK_MSG( value, false, wxT("NULL pointer in wxCmdLineOption::Found") ); *value = opt.GetDateVal(); @@ -586,7 +632,7 @@ size_t wxCmdLineParser::GetParamCount() const wxString wxCmdLineParser::GetParam(size_t n) const { - wxCHECK_MSG( n < GetParamCount(), wxEmptyString, _T("invalid param index") ); + wxCHECK_MSG( n < GetParamCount(), wxEmptyString, wxT("invalid param index") ); return m_data->m_parameters[n]; } @@ -596,8 +642,7 @@ void wxCmdLineParser::Reset() { for ( size_t i = 0; i < m_data->m_options.GetCount(); i++ ) { - wxCmdLineOption& opt = m_data->m_options[i]; - opt.SetHasValue(false); + m_data->m_options[i].Reset(); } } @@ -630,13 +675,21 @@ int wxCmdLineParser::Parse(bool showUsage) // special case: "--" should be discarded and all following arguments // should be considered as parameters, even if they start with '-' and // not like options (this is POSIX-like) - if ( arg == _T("--") ) + if ( arg == wxT("--") ) { maybeOption = false; continue; } - +#ifdef __WXOSX__ + if ( arg == wxT("-ApplePersistenceIgnoreState") ) + { + maybeOption = false; + + continue; + } +#endif + // empty argument or just '-' is not an option but a parameter if ( maybeOption && arg.length() > 1 && // FIXME-UTF8: use wc_str() after removing ANSI build @@ -647,7 +700,7 @@ int wxCmdLineParser::Parse(bool showUsage) int optInd = wxNOT_FOUND; // init to suppress warnings // an option or a switch: find whether it's a long or a short one - if ( arg.length() >= 3 && arg[0u] == _T('-') && arg[1u] == _T('-') ) + if ( arg.length() >= 3 && arg[0u] == wxT('-') && arg[1u] == wxT('-') ) { // a long one isLong = true; @@ -661,11 +714,45 @@ int wxCmdLineParser::Parse(bool showUsage) if (longOptionsEnabled) { + wxString errorOpt; + optInd = m_data->FindOptionByLongName(name); if ( optInd == wxNOT_FOUND ) { - errorMsg << wxString::Format(_("Unknown long option '%s'"), name.c_str()) - << _T('\n'); + // Check if this could be a negatable long option. + if ( name.Last() == '-' ) + { + name.RemoveLast(); + + optInd = m_data->FindOptionByLongName(name); + if ( optInd != wxNOT_FOUND ) + { + if ( !(m_data->m_options[optInd].flags & + wxCMD_LINE_SWITCH_NEGATABLE) ) + { + errorOpt.Printf + ( + _("Option '%s' can't be negated"), + name + ); + optInd = wxNOT_FOUND; + } + } + } + + if ( optInd == wxNOT_FOUND ) + { + if ( errorOpt.empty() ) + { + errorOpt.Printf + ( + _("Unknown long option '%s'"), + name + ); + } + + errorMsg << errorOpt << wxT('\n'); + } } } else @@ -675,7 +762,7 @@ int wxCmdLineParser::Parse(bool showUsage) // Print the argument including leading "--" name.Prepend( wxT("--") ); errorMsg << wxString::Format(_("Unknown option '%s'"), name.c_str()) - << _T('\n'); + << wxT('\n'); } } @@ -697,7 +784,7 @@ int wxCmdLineParser::Parse(bool showUsage) // we couldn't find a valid option name in the // beginning of this string errorMsg << wxString::Format(_("Unknown option '%s'"), name.c_str()) - << _T('\n'); + << wxT('\n'); break; } @@ -724,6 +811,14 @@ int wxCmdLineParser::Parse(bool showUsage) if ( m_data->m_options[(size_t)optInd].kind == wxCMD_LINE_SWITCH ) { + // if the switch is negatable and it is just followed + // by '-' the '-' is considered to be part of this + // switch + if ( (m_data->m_options[(size_t)optInd].flags & + wxCMD_LINE_SWITCH_NEGATABLE) && + arg[len] == '-' ) + ++len; + // pretend that all the rest of the argument is the // next argument, in fact wxString arg2 = arg[0u]; @@ -732,6 +827,10 @@ int wxCmdLineParser::Parse(bool showUsage) m_data->m_arguments.insert (m_data->m_arguments.begin() + n + 1, arg2); count++; + + // only leave the part which wasn't extracted into the + // next argument in this one + arg = arg.Left(len + 1); } //else: it's our value, we'll deal with it below } @@ -757,16 +856,21 @@ int wxCmdLineParser::Parse(bool showUsage) if ( opt.kind == wxCMD_LINE_SWITCH ) { // we must check that there is no value following the switch - if ( p != arg.end() ) + bool negated = (opt.flags & wxCMD_LINE_SWITCH_NEGATABLE) && + p != arg.end() && *p == '-'; + + if ( !negated && p != arg.end() ) { errorMsg << wxString::Format(_("Unexpected characters following option '%s'."), name.c_str()) - << _T('\n'); + << wxT('\n'); ok = false; } else // no value, as expected { // nothing more to do opt.SetHasValue(); + if ( negated ) + opt.SetNegated(); if ( opt.flags & wxCMD_LINE_OPTION_HELP ) { @@ -794,7 +898,7 @@ int wxCmdLineParser::Parse(bool showUsage) // ... but there is none errorMsg << wxString::Format(_("Option '%s' requires a value."), name.c_str()) - << _T('\n'); + << wxT('\n'); ok = false; } @@ -813,7 +917,7 @@ int wxCmdLineParser::Parse(bool showUsage) { errorMsg << wxString::Format(_("Separator expected after the option '%s'."), name.c_str()) - << _T('\n'); + << wxT('\n'); ok = false; } @@ -825,7 +929,7 @@ int wxCmdLineParser::Parse(bool showUsage) switch ( opt.type ) { default: - wxFAIL_MSG( _T("unknown option type") ); + wxFAIL_MSG( wxT("unknown option type") ); // still fall through case wxCMD_LINE_VAL_STRING: @@ -843,7 +947,7 @@ int wxCmdLineParser::Parse(bool showUsage) { errorMsg << wxString::Format(_("'%s' is not a correct numeric value for option '%s'."), value.c_str(), name.c_str()) - << _T('\n'); + << wxT('\n'); ok = false; } @@ -861,7 +965,7 @@ int wxCmdLineParser::Parse(bool showUsage) { errorMsg << wxString::Format(_("'%s' is not a correct numeric value for option '%s'."), value.c_str(), name.c_str()) - << _T('\n'); + << wxT('\n'); ok = false; } @@ -872,12 +976,12 @@ int wxCmdLineParser::Parse(bool showUsage) case wxCMD_LINE_VAL_DATE: { wxDateTime dt; - const char *res = dt.ParseDate(value); - if ( !res || *res ) + wxString::const_iterator endDate; + if ( !dt.ParseDate(value, &endDate) || endDate != value.end() ) { errorMsg << wxString::Format(_("Option '%s': '%s' cannot be converted to a date."), name.c_str(), value.c_str()) - << _T('\n'); + << wxT('\n'); ok = false; } @@ -909,7 +1013,7 @@ int wxCmdLineParser::Parse(bool showUsage) else { wxASSERT_MSG( currentParam == countParam - 1, - _T("all parameters after the one with wxCMD_LINE_PARAM_MULTIPLE style are ignored") ); + wxT("all parameters after the one with wxCMD_LINE_PARAM_MULTIPLE style are ignored") ); // remember that we did have this last repeatable parameter hadRepeatableParam = true; @@ -918,7 +1022,7 @@ int wxCmdLineParser::Parse(bool showUsage) else { errorMsg << wxString::Format(_("Unexpected parameter '%s'"), arg.c_str()) - << _T('\n'); + << wxT('\n'); ok = false; } @@ -956,7 +1060,7 @@ int wxCmdLineParser::Parse(bool showUsage) errorMsg << wxString::Format(_("The value for the option '%s' must be specified."), optName.c_str()) - << _T('\n'); + << wxT('\n'); ok = false; } @@ -978,7 +1082,7 @@ int wxCmdLineParser::Parse(bool showUsage) { errorMsg << wxString::Format(_("The required parameter '%s' was not specified."), param.description.c_str()) - << _T('\n'); + << wxT('\n'); ok = false; } @@ -1000,7 +1104,7 @@ int wxCmdLineParser::Parse(bool showUsage) } else { - wxFAIL_MSG( _T("no wxMessageOutput object?") ); + wxFAIL_MSG( wxT("no wxMessageOutput object?") ); } } @@ -1020,7 +1124,7 @@ void wxCmdLineParser::Usage() const } else { - wxFAIL_MSG( _T("no wxMessageOutput object?") ); + wxFAIL_MSG( wxT("no wxMessageOutput object?") ); } } @@ -1045,14 +1149,14 @@ wxString wxCmdLineParser::GetUsageString() const if ( !m_data->m_logo.empty() ) { - usage << m_data->m_logo << _T('\n'); + usage << m_data->m_logo << wxT('\n'); } usage << wxString::Format(_("Usage: %s"), appname.c_str()); // the switch char is usually '-' but this can be changed with // SetSwitchChars() and then the first one of possible chars is used - wxChar chSwitch = !m_data->m_switchChars ? _T('-') + wxChar chSwitch = !m_data->m_switchChars ? wxT('-') : m_data->m_switchChars[0u]; bool areLongOptionsEnabled = AreLongOptionsEnabled(); @@ -1060,23 +1164,26 @@ wxString wxCmdLineParser::GetUsageString() const for ( n = 0; n < count; n++ ) { wxCmdLineOption& opt = m_data->m_options[n]; - wxString option; + wxString option, negator; if ( opt.kind != wxCMD_LINE_USAGE_TEXT ) { - usage << _T(' '); + usage << wxT(' '); if ( !(opt.flags & wxCMD_LINE_OPTION_MANDATORY) ) { - usage << _T('['); + usage << wxT('['); } + if ( opt.flags & wxCMD_LINE_SWITCH_NEGATABLE ) + negator = wxT("[-]"); + if ( !opt.shortName.empty() ) { - usage << chSwitch << opt.shortName; + usage << chSwitch << opt.shortName << negator; } else if ( areLongOptionsEnabled && !opt.longName.empty() ) { - usage << _T("--") << opt.longName; + usage << wxT("--") << opt.longName << negator; } else { @@ -1087,32 +1194,32 @@ wxString wxCmdLineParser::GetUsageString() const } else { - wxFAIL_MSG( _T("option without neither short nor long name") ); + wxFAIL_MSG( wxT("option without neither short nor long name") ); } } if ( !opt.shortName.empty() ) { - option << _T(" ") << chSwitch << opt.shortName; + option << wxT(" ") << chSwitch << opt.shortName; } if ( areLongOptionsEnabled && !opt.longName.empty() ) { - option << (option.empty() ? _T(" ") : _T(", ")) - << _T("--") << opt.longName; + option << (option.empty() ? wxT(" ") : wxT(", ")) + << wxT("--") << opt.longName; } if ( opt.kind != wxCMD_LINE_SWITCH ) { wxString val; - val << _T('<') << GetTypeName(opt.type) << _T('>'); - usage << _T(' ') << val; - option << (!opt.longName ? _T(':') : _T('=')) << val; + val << wxT('<') << GetTypeName(opt.type) << wxT('>'); + usage << wxT(' ') << val; + option << (!opt.longName ? wxT(':') : wxT('=')) << val; } if ( !(opt.flags & wxCMD_LINE_OPTION_MANDATORY) ) { - usage << _T(']'); + usage << wxT(']'); } } @@ -1125,26 +1232,26 @@ wxString wxCmdLineParser::GetUsageString() const { wxCmdLineParam& param = m_data->m_paramDesc[n]; - usage << _T(' '); + usage << wxT(' '); if ( param.flags & wxCMD_LINE_PARAM_OPTIONAL ) { - usage << _T('['); + usage << wxT('['); } usage << param.description; if ( param.flags & wxCMD_LINE_PARAM_MULTIPLE ) { - usage << _T("..."); + usage << wxT("..."); } if ( param.flags & wxCMD_LINE_PARAM_OPTIONAL ) { - usage << _T(']'); + usage << wxT(']'); } } - usage << _T('\n'); + usage << wxT('\n'); // set to number of our own options, not counting the standard ones count = namesOptions.size(); @@ -1167,20 +1274,20 @@ wxString wxCmdLineParser::GetUsageString() const for ( n = 0; n < namesOptions.size(); n++ ) { if ( n == count ) - usage << _T('\n') << stdDesc; + usage << wxT('\n') << stdDesc; len = namesOptions[n].length(); // desc contains text if name is empty if (len == 0) { - usage << descOptions[n] << _T('\n'); + usage << descOptions[n] << wxT('\n'); } else { usage << namesOptions[n] - << wxString(_T(' '), lenMax - len) << _T('\t') + << wxString(wxT(' '), lenMax - len) << wxT('\t') << descOptions[n] - << _T('\n'); + << wxT('\n'); } } @@ -1197,7 +1304,7 @@ static wxString GetTypeName(wxCmdLineParamType type) switch ( type ) { default: - wxFAIL_MSG( _T("unknown option type") ); + wxFAIL_MSG( wxT("unknown option type") ); // still fall through case wxCMD_LINE_VAL_STRING: @@ -1277,6 +1384,23 @@ static wxString GetLongOptionName(wxString::const_iterator p, Windows conventions for the command line handling, not Unix ones. For instance, backslash is not special except when it precedes double quote when it does quote it. + + TODO: Rewrite this to follow the even more complicated rule used by Windows + CommandLineToArgv(): + + * A string of backslashes not followed by a quotation mark has no special + meaning. + * An even number of backslashes followed by a quotation mark is treated as + pairs of protected backslashes, followed by a word terminator. + * An odd number of backslashes followed by a quotation mark is treated as + pairs of protected backslashes, followed by a protected quotation mark. + + See http://blogs.msdn.com/b/oldnewthing/archive/2010/09/17/10063629.aspx + + It could also be useful to provide a converse function which is also + non-trivial, see + + http://blogs.msdn.com/b/twistylittlepassagesallalike/archive/2011/04/23/everyone-quotes-arguments-the-wrong-way.aspx */ /* static */ @@ -1332,7 +1456,7 @@ wxCmdLineParser::ConvertStringToArgs(const wxString& cmdline, break; } - lastBS = ch == '\\'; + lastBS = !lastBS && ch == '\\'; } else // type == wxCMD_LINE_SPLIT_UNIX {