]> git.saurik.com Git - wxWidgets.git/blobdiff - src/common/cmdline.cpp
oops, undid last commit, the extra test is unneded (but a comment explaining why...
[wxWidgets.git] / src / common / cmdline.cpp
index 2c5ea56421506699afcbe5e318222bb2e22b30bd..12012e680708bd2092ffac0a1850254578bfb95d 100644 (file)
@@ -6,7 +6,7 @@
 // Created:     05.01.00
 // RCS-ID:      $Id$
 // Copyright:   (c) 2000 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
-    #pragma implementation "cmdline.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
     #include "wx/intl.h"
     #include "wx/app.h"
     #include "wx/dynarray.h"
-    #include "wx/filefn.h"
 #endif //WX_PRECOMP
 
 #include <ctype.h>
 
 #include "wx/datetime.h"
+#include "wx/msgout.h"
+#include "wx/filename.h"
 
 // ----------------------------------------------------------------------------
 // private functions
 
 static wxString GetTypeName(wxCmdLineParamType type);
 
+static wxString GetOptionName(const wxChar *p, const wxChar *allowedChars);
+
+static wxString GetShortOptionName(const wxChar *p);
+
+static wxString GetLongOptionName(const wxChar *p);
+
 // ----------------------------------------------------------------------------
-// private classes
+// private structs
 // ----------------------------------------------------------------------------
 
 // an internal representation of an option
@@ -68,6 +71,19 @@ struct wxCmdLineOption
         wxASSERT_MSG( !shrt.empty() || !lng.empty(),
                       _T("option should have at least one name") );
 
+        wxASSERT_MSG
+            (
+                GetShortOptionName(shrt).Len() == shrt.Len(),
+                wxT("Short option contains invalid characters")
+            );
+
+        wxASSERT_MSG
+            (
+                GetLongOptionName(lng).Len() == lng.Len(),
+                wxT("Long option contains invalid characters")
+            );
+
+
         kind = k;
 
         shortName = shrt;
@@ -77,7 +93,7 @@ struct wxCmdLineOption
         type = typ;
         flags = fl;
 
-        m_hasVal = FALSE;
+        m_hasVal = false;
     }
 
     // can't use union easily here, so just store all possible data fields, we
@@ -94,17 +110,21 @@ struct wxCmdLineOption
         { Check(wxCMD_LINE_VAL_NUMBER); return m_longVal; }
     const wxString& GetStrVal() const
         { Check(wxCMD_LINE_VAL_STRING); return m_strVal;  }
+#if wxUSE_DATETIME
     const wxDateTime& GetDateVal() const
         { Check(wxCMD_LINE_VAL_DATE);   return m_dateVal; }
+#endif // wxUSE_DATETIME
 
     void SetLongVal(long val)
-        { Check(wxCMD_LINE_VAL_NUMBER); m_longVal = val; m_hasVal = TRUE; }
+        { Check(wxCMD_LINE_VAL_NUMBER); m_longVal = val; m_hasVal = true; }
     void SetStrVal(const wxString& val)
-        { Check(wxCMD_LINE_VAL_STRING); m_strVal = val; m_hasVal = TRUE; }
-    void SetDateVal(const wxDateTime val)
-        { Check(wxCMD_LINE_VAL_DATE); m_dateVal = val; m_hasVal = TRUE; }
+        { Check(wxCMD_LINE_VAL_STRING); m_strVal = val; m_hasVal = true; }
+#if wxUSE_DATETIME
+    void SetDateVal(const wxDateTime& val)
+        { Check(wxCMD_LINE_VAL_DATE); m_dateVal = val; m_hasVal = true; }
+#endif // wxUSE_DATETIME
 
-    void SetHasValue(bool hasValue = TRUE) { m_hasVal = hasValue; }
+    void SetHasValue(bool hasValue = true) { m_hasVal = hasValue; }
     bool HasValue() const { return m_hasVal; }
 
 public:
@@ -120,7 +140,9 @@ private:
 
     long m_longVal;
     wxString m_strVal;
+#if wxUSE_DATETIME
     wxDateTime m_dateVal;
+#endif // wxUSE_DATETIME
 };
 
 struct wxCmdLineParam
@@ -144,15 +166,15 @@ WX_DECLARE_OBJARRAY(wxCmdLineParam, wxArrayParams);
 
 #include "wx/arrimpl.cpp"
 
-WX_DEFINE_OBJARRAY(wxArrayOptions);
-WX_DEFINE_OBJARRAY(wxArrayParams);
+WX_DEFINE_OBJARRAY(wxArrayOptions)
+WX_DEFINE_OBJARRAY(wxArrayParams)
 
 // the parser internal state
 struct wxCmdLineParserData
 {
     // options
     wxString m_switchChars;     // characters which may start an option
-    bool m_enableLongOptions;   // TRUE if long options are enabled
+    bool m_enableLongOptions;   // true if long options are enabled
     wxString m_logo;            // some extra text to show in Usage()
 
     // cmd line data
@@ -163,7 +185,10 @@ struct wxCmdLineParserData
 
     // methods
     wxCmdLineParserData();
+    void SetArguments(int argc, char **argv);
+#if wxUSE_UNICODE
     void SetArguments(int argc, wxChar **argv);
+#endif // wxUSE_UNICODE
     void SetArguments(const wxString& cmdline);
 
     int FindOption(const wxString& name);
@@ -180,7 +205,7 @@ struct wxCmdLineParserData
 
 wxCmdLineParserData::wxCmdLineParserData()
 {
-    m_enableLongOptions = TRUE;
+    m_enableLongOptions = true;
 #ifdef __UNIX_LIKE__
     m_switchChars = _T("-");
 #else // !Unix
@@ -188,21 +213,38 @@ wxCmdLineParserData::wxCmdLineParserData()
 #endif
 }
 
+void wxCmdLineParserData::SetArguments(int argc, char **argv)
+{
+    m_arguments.clear();
+
+    for ( int n = 0; n < argc; n++ )
+    {
+        m_arguments.push_back(wxString::FromAscii(argv[n]));
+    }
+}
+
+#if wxUSE_UNICODE
+
 void wxCmdLineParserData::SetArguments(int argc, wxChar **argv)
 {
-    m_arguments.Empty();
+    m_arguments.clear();
 
     for ( int n = 0; n < argc; n++ )
     {
-        m_arguments.Add(argv[n]);
+        m_arguments.push_back(argv[n]);
     }
 }
 
+#endif // wxUSE_UNICODE
+
 void wxCmdLineParserData::SetArguments(const wxString& cmdLine)
 {
-    m_arguments.Empty();
+    m_arguments.clear();
 
-    m_arguments.Add(wxTheApp->GetAppName());
+    if(wxTheApp && wxTheApp->argc > 0)
+        m_arguments.push_back(wxTheApp->argv[0]);
+    else
+        m_arguments.push_back(wxEmptyString);
 
     wxArrayString args = wxCmdLineParser::ConvertStringToArgs(cmdLine);
 
@@ -251,11 +293,20 @@ void wxCmdLineParser::Init()
     m_data = new wxCmdLineParserData;
 }
 
+void wxCmdLineParser::SetCmdLine(int argc, char **argv)
+{
+    m_data->SetArguments(argc, argv);
+}
+
+#if wxUSE_UNICODE
+
 void wxCmdLineParser::SetCmdLine(int argc, wxChar **argv)
 {
     m_data->SetArguments(argc, argv);
 }
 
+#endif // wxUSE_UNICODE
+
 void wxCmdLineParser::SetCmdLine(const wxString& cmdline)
 {
     m_data->SetArguments(cmdline);
@@ -280,6 +331,11 @@ void wxCmdLineParser::EnableLongOptions(bool enable)
     m_data->m_enableLongOptions = enable;
 }
 
+bool wxCmdLineParser::AreLongOptionsEnabled()
+{
+    return m_data->m_enableLongOptions;
+}
+
 void wxCmdLineParser::SetLogo(const wxString& logo)
 {
     m_data->m_logo = logo;
@@ -387,13 +443,13 @@ bool wxCmdLineParser::Found(const wxString& name) const
     if ( i == wxNOT_FOUND )
         i = m_data->FindOptionByLongName(name);
 
-    wxCHECK_MSG( i != wxNOT_FOUND, FALSE, _T("unknown switch") );
+    wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown switch") );
 
     wxCmdLineOption& opt = m_data->m_options[(size_t)i];
     if ( !opt.HasValue() )
-        return FALSE;
+        return false;
 
-    return TRUE;
+    return true;
 }
 
 bool wxCmdLineParser::Found(const wxString& name, wxString *value) const
@@ -402,17 +458,17 @@ 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, _T("unknown option") );
 
     wxCmdLineOption& opt = m_data->m_options[(size_t)i];
     if ( !opt.HasValue() )
-        return FALSE;
+        return false;
 
-    wxCHECK_MSG( value, FALSE, _T("NULL pointer in wxCmdLineOption::Found") );
+    wxCHECK_MSG( value, false, _T("NULL pointer in wxCmdLineOption::Found") );
 
     *value = opt.GetStrVal();
 
-    return TRUE;
+    return true;
 }
 
 bool wxCmdLineParser::Found(const wxString& name, long *value) const
@@ -421,41 +477,43 @@ 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, _T("unknown option") );
 
     wxCmdLineOption& opt = m_data->m_options[(size_t)i];
     if ( !opt.HasValue() )
-        return FALSE;
+        return false;
 
-    wxCHECK_MSG( value, FALSE, _T("NULL pointer in wxCmdLineOption::Found") );
+    wxCHECK_MSG( value, false, _T("NULL pointer in wxCmdLineOption::Found") );
 
     *value = opt.GetLongVal();
 
-    return TRUE;
+    return true;
 }
 
+#if wxUSE_DATETIME
 bool wxCmdLineParser::Found(const wxString& name, wxDateTime *value) const
 {
     int i = m_data->FindOption(name);
     if ( i == wxNOT_FOUND )
         i = m_data->FindOptionByLongName(name);
 
-    wxCHECK_MSG( i != wxNOT_FOUND, FALSE, _T("unknown option") );
+    wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown option") );
 
     wxCmdLineOption& opt = m_data->m_options[(size_t)i];
     if ( !opt.HasValue() )
-        return FALSE;
+        return false;
 
-    wxCHECK_MSG( value, FALSE, _T("NULL pointer in wxCmdLineOption::Found") );
+    wxCHECK_MSG( value, false, _T("NULL pointer in wxCmdLineOption::Found") );
 
     *value = opt.GetDateVal();
 
-    return TRUE;
+    return true;
 }
+#endif // wxUSE_DATETIME
 
 size_t wxCmdLineParser::GetParamCount() const
 {
-    return m_data->m_parameters.GetCount();
+    return m_data->m_parameters.size();
 }
 
 wxString wxCmdLineParser::GetParam(size_t n) const
@@ -471,7 +529,7 @@ void wxCmdLineParser::Reset()
     for ( size_t i = 0; i < m_data->m_options.Count(); i++ )
     {
         wxCmdLineOption& opt = m_data->m_options[i];
-        opt.SetHasValue(FALSE);
+        opt.SetHasValue(false);
     }
 }
 
@@ -482,20 +540,21 @@ void wxCmdLineParser::Reset()
 
 int wxCmdLineParser::Parse(bool showUsage)
 {
-    bool maybeOption = TRUE;    // can the following arg be an option?
-    bool ok = TRUE;             // TRUE until an error is detected
-    bool helpRequested = FALSE; // TRUE if "-h" was given
-    bool hadRepeatableParam = FALSE; // TRUE if found param with MULTIPLE flag
+    bool maybeOption = true;    // can the following arg be an option?
+    bool ok = true;             // true until an error is detected
+    bool helpRequested = false; // true if "-h" was given
+    bool hadRepeatableParam = false; // true if found param with MULTIPLE flag
 
     size_t currentParam = 0;    // the index in m_paramDesc
 
     size_t countParam = m_data->m_paramDesc.GetCount();
+    wxString errorMsg;
 
     Reset();
 
     // parse everything
     wxString arg;
-    size_t count = m_data->m_arguments.GetCount();
+    size_t count = m_data->m_arguments.size();
     for ( size_t n = 1; ok && (n < count); n++ )    // 0 is program name
     {
         arg = m_data->m_arguments[n];
@@ -505,7 +564,7 @@ int wxCmdLineParser::Parse(bool showUsage)
         // not like options (this is POSIX-like)
         if ( arg == _T("--") )
         {
-            maybeOption = FALSE;
+            maybeOption = false;
 
             continue;
         }
@@ -519,35 +578,45 @@ 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 ( m_data->m_enableLongOptions &&
-                    arg[0u] == _T('-') && arg[1u] == _T('-') )
+            if ( arg[0u] == _T('-') && arg[1u] == _T('-') )
             {
                 // a long one
-                isLong = TRUE;
+                isLong = true;
 
+                // Skip leading "--"
                 const wxChar *p = arg.c_str() + 2;
-                while ( wxIsalnum(*p) || (*p == _T('_')) || (*p == _T('-')) )
+
+                bool longOptionsEnabled = AreLongOptionsEnabled();
+
+                name = GetLongOptionName(p);
+
+                if (longOptionsEnabled)
                 {
-                    name += *p++;
+                    optInd = m_data->FindOptionByLongName(name);
+                    if ( optInd == wxNOT_FOUND )
+                    {
+                        errorMsg << wxString::Format(_("Unknown long option '%s'"), name.c_str()) << wxT("\n");
+                    }
                 }
-
-                optInd = m_data->FindOptionByLongName(name);
-                if ( optInd == wxNOT_FOUND )
+                else
                 {
-                    wxLogError(_("Unknown long option '%s'"), name.c_str());
+                    optInd = wxNOT_FOUND; // Sanity check
+
+                    // Print the argument including leading "--"
+                    name.Prepend( wxT("--") );
+                    errorMsg << wxString::Format(_("Unknown option '%s'"), name.c_str()) << wxT("\n");
                 }
+
             }
             else
             {
-                isLong = FALSE;
+                isLong = false;
 
                 // a short one: as they can be cumulated, we try to find the
                 // longest substring which is a valid option
                 const wxChar *p = arg.c_str() + 1;
-                while ( wxIsalnum(*p) || (*p == _T('_')) )
-                {
-                    name += *p++;
-                }
+
+                name = GetShortOptionName(p);
 
                 size_t len = name.length();
                 do
@@ -556,7 +625,7 @@ int wxCmdLineParser::Parse(bool showUsage)
                     {
                         // we couldn't find a valid option name in the
                         // beginning of this string
-                        wxLogError(_("Unknown option '%s'"), name.c_str());
+                        errorMsg << wxString::Format(_("Unknown option '%s'"), name.c_str()) << wxT("\n");
 
                         break;
                     }
@@ -588,7 +657,8 @@ int wxCmdLineParser::Parse(bool showUsage)
                         wxString arg2 = arg[0u];
                         arg2 += arg.Mid(len + 1); // +1 for leading '-'
 
-                        m_data->m_arguments.Insert(arg2, n + 1);
+                        m_data->m_arguments.insert
+                            (m_data->m_arguments.begin() + n + 1, arg2);
                         count++;
                     }
                     //else: it's our value, we'll deal with it below
@@ -597,7 +667,7 @@ int wxCmdLineParser::Parse(bool showUsage)
 
             if ( optInd == wxNOT_FOUND )
             {
-                ok = FALSE;
+                ok = false;
 
                 continue;   // will break, in fact
             }
@@ -610,10 +680,10 @@ int wxCmdLineParser::Parse(bool showUsage)
 
                 if ( opt.flags & wxCMD_LINE_OPTION_HELP )
                 {
-                    helpRequested = TRUE;
+                    helpRequested = true;
 
                     // it's not an error, but we still stop here
-                    ok = FALSE;
+                    ok = false;
                 }
             }
             else
@@ -628,9 +698,9 @@ int wxCmdLineParser::Parse(bool showUsage)
 
                     if ( *p++ != _T('=') )
                     {
-                        wxLogError(_("Option '%s' requires a value, '=' expected."), name.c_str());
+                        errorMsg << wxString::Format(_("Option '%s' requires a value, '=' expected."), name.c_str()) << wxT("\n");
 
-                        ok = FALSE;
+                        ok = false;
                     }
                 }
                 else
@@ -648,10 +718,10 @@ int wxCmdLineParser::Parse(bool showUsage)
                             if ( ++n == count )
                             {
                                 // ... but there is none
-                                wxLogError(_("Option '%s' requires a value."),
-                                           name.c_str());
+                                errorMsg << wxString::Format(_("Option '%s' requires a value."),
+                                                             name.c_str()) << wxT("\n");
 
-                                ok = FALSE;
+                                ok = false;
                             }
                             else
                             {
@@ -665,10 +735,10 @@ int wxCmdLineParser::Parse(bool showUsage)
                             // not depending on the option style
                             if ( opt.flags & wxCMD_LINE_NEEDS_SEPARATOR )
                             {
-                                wxLogError(_("Separator expected after the option '%s'."),
-                                           name.c_str());
+                                errorMsg << wxString::Format(_("Separator expected after the option '%s'."),
+                                                             name.c_str()) << wxT("\n");
 
-                                ok = FALSE;
+                                ok = false;
                             }
                     }
                 }
@@ -695,24 +765,25 @@ int wxCmdLineParser::Parse(bool showUsage)
                                 }
                                 else
                                 {
-                                    wxLogError(_("'%s' is not a correct numeric value for option '%s'."),
-                                               value.c_str(), name.c_str());
+                                    errorMsg << wxString::Format(_("'%s' is not a correct numeric value for option '%s'."),
+                                                                 value.c_str(), name.c_str()) << wxT("\n");
 
-                                    ok = FALSE;
+                                    ok = false;
                                 }
                             }
                             break;
 
+#if wxUSE_DATETIME
                         case wxCMD_LINE_VAL_DATE:
                             {
                                 wxDateTime dt;
                                 const wxChar *res = dt.ParseDate(value);
                                 if ( !res || *res )
                                 {
-                                    wxLogError(_("Option '%s': '%s' cannot be converted to a date."),
-                                               name.c_str(), value.c_str());
+                                    errorMsg << wxString::Format(_("Option '%s': '%s' cannot be converted to a date."),
+                                                                 name.c_str(), value.c_str()) << wxT("\n");
 
-                                    ok = FALSE;
+                                    ok = false;
                                 }
                                 else
                                 {
@@ -720,6 +791,7 @@ int wxCmdLineParser::Parse(bool showUsage)
                                 }
                             }
                             break;
+#endif // wxUSE_DATETIME
                     }
                 }
             }
@@ -733,7 +805,7 @@ int wxCmdLineParser::Parse(bool showUsage)
 
                 // TODO check the param type
 
-                m_data->m_parameters.Add(arg);
+                m_data->m_parameters.push_back(arg);
 
                 if ( !(param.flags & wxCMD_LINE_PARAM_MULTIPLE) )
                 {
@@ -745,14 +817,14 @@ int wxCmdLineParser::Parse(bool showUsage)
                                   _T("all parameters after the one with wxCMD_LINE_PARAM_MULTIPLE style are ignored") );
 
                     // remember that we did have this last repeatable parameter
-                    hadRepeatableParam = TRUE;
+                    hadRepeatableParam = true;
                 }
             }
             else
             {
-                wxLogError(_("Unexpected parameter '%s'"), arg.c_str());
+                errorMsg << wxString::Format(_("Unexpected parameter '%s'"), arg.c_str()) << wxT("\n");
 
-                ok = FALSE;
+                ok = false;
             }
         }
     }
@@ -773,15 +845,23 @@ int wxCmdLineParser::Parse(bool showUsage)
                 }
                 else
                 {
-                    optName.Printf(_("%s (or %s)"),
-                                   opt.shortName.c_str(),
-                                   opt.longName.c_str());
+                    if ( AreLongOptionsEnabled() )
+                    {
+                        optName.Printf( _("%s (or %s)"),
+                                        opt.shortName.c_str(),
+                                        opt.longName.c_str() );
+                    }
+                    else
+                    {
+                        optName.Printf( wxT("%s"),
+                                        opt.shortName.c_str() );
+                    }
                 }
 
-                wxLogError(_("The value for the option '%s' must be specified."),
-                           optName.c_str());
+                errorMsg << wxString::Format(_("The value for the option '%s' must be specified."),
+                                             optName.c_str()) << wxT("\n");
 
-                ok = FALSE;
+                ok = false;
             }
         }
 
@@ -799,17 +879,31 @@ int wxCmdLineParser::Parse(bool showUsage)
 
             if ( !(param.flags & wxCMD_LINE_PARAM_OPTIONAL) )
             {
-                wxLogError(_("The required parameter '%s' was not specified."),
-                           param.description.c_str());
+                errorMsg << wxString::Format(_("The required parameter '%s' was not specified."),
+                                             param.description.c_str()) << wxT("\n");
 
-                ok = FALSE;
+                ok = false;
             }
         }
     }
 
-    if ( !ok && showUsage )
+    // if there was an error during parsing the command line, show this error
+    // and also the usage message if it had been requested
+    if ( !ok && (!errorMsg.empty() || (helpRequested && showUsage)) )
     {
-        Usage();
+        wxMessageOutput* msgOut = wxMessageOutput::Get();
+        if ( msgOut )
+        {
+            wxString usage;
+            if ( showUsage )
+                usage = GetUsageString();
+
+            msgOut->Printf( wxT("%s%s"), usage.c_str(), errorMsg.c_str() );
+        }
+        else
+        {
+            wxFAIL_MSG( _T("no wxMessageOutput object?") );
+        }
     }
 
     return ok ? 0 : helpRequested ? -1 : 1;
@@ -821,49 +915,79 @@ int wxCmdLineParser::Parse(bool showUsage)
 
 void wxCmdLineParser::Usage()
 {
-    wxString appname = wxTheApp->GetAppName();
-    if ( !appname )
+    wxMessageOutput* msgOut = wxMessageOutput::Get();
+    if ( msgOut )
     {
-        wxCHECK_RET( !m_data->m_arguments.IsEmpty(), _T("no program name") );
+        msgOut->Printf( wxT("%s"), GetUsageString().c_str() );
+    }
+    else
+    {
+        wxFAIL_MSG( _T("no wxMessageOutput object?") );
+    }
+}
 
-        appname = wxFileNameFromPath(m_data->m_arguments[0]);
-        wxStripExtension(appname);
+wxString wxCmdLineParser::GetUsageString()
+{
+    wxString appname;
+    if ( m_data->m_arguments.empty() )
+    {
+        if ( wxTheApp )
+            appname = wxTheApp->GetAppName();
+    }
+    else // use argv[0]
+    {
+        appname = wxFileName(m_data->m_arguments[0]).GetName();
     }
 
     // we construct the brief cmd line desc on the fly, but not the detailed
     // help message below because we want to align the options descriptions
     // and for this we must first know the longest one of them
-    wxString brief;
+    wxString usage;
     wxArrayString namesOptions, descOptions;
-    brief.Printf(_("Usage: %s"), appname.c_str());
+
+    if ( !m_data->m_logo.empty() )
+    {
+        usage << m_data->m_logo << _T('\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('-')
                                              : m_data->m_switchChars[0u];
 
+    bool areLongOptionsEnabled = AreLongOptionsEnabled();
     size_t n, count = m_data->m_options.GetCount();
     for ( n = 0; n < count; n++ )
     {
         wxCmdLineOption& opt = m_data->m_options[n];
 
-        brief << _T(' ');
+        usage << _T(' ');
         if ( !(opt.flags & wxCMD_LINE_OPTION_MANDATORY) )
         {
-            brief << _T('[');
+            usage << _T('[');
         }
 
         if ( !opt.shortName.empty() )
         {
-            brief << chSwitch << opt.shortName;
+            usage << chSwitch << opt.shortName;
         }
-        else if ( !opt.longName.empty() )
+        else if ( areLongOptionsEnabled && !opt.longName.empty() )
         {
-            brief << _T("--") << opt.longName;
+            usage << _T("--") << opt.longName;
         }
         else
         {
-            wxFAIL_MSG( _T("option without neither short nor long name?") );
+            if (!opt.longName.empty())
+            {
+                wxFAIL_MSG( wxT("option with only a long name while long ")
+                    wxT("options are disabled") );
+            }
+            else
+            {
+                wxFAIL_MSG( _T("option without neither short nor long name") );
+            }
         }
 
         wxString option;
@@ -873,7 +997,7 @@ void wxCmdLineParser::Usage()
             option << _T("  ") << chSwitch << opt.shortName;
         }
 
-        if ( !opt.longName.empty() )
+        if ( areLongOptionsEnabled && !opt.longName.empty() )
         {
             option << (option.empty() ? _T("  ") : _T(", "))
                    << _T("--") << opt.longName;
@@ -883,17 +1007,17 @@ void wxCmdLineParser::Usage()
         {
             wxString val;
             val << _T('<') << GetTypeName(opt.type) << _T('>');
-            brief << _T(' ') << val;
+            usage << _T(' ') << val;
             option << (!opt.longName ? _T(':') : _T('=')) << val;
         }
 
         if ( !(opt.flags & wxCMD_LINE_OPTION_MANDATORY) )
         {
-            brief << _T(']');
+            usage << _T(']');
         }
 
-        namesOptions.Add(option);
-        descOptions.Add(opt.description);
+        namesOptions.push_back(option);
+        descOptions.push_back(opt.description);
     }
 
     count = m_data->m_paramDesc.GetCount();
@@ -901,41 +1025,30 @@ void wxCmdLineParser::Usage()
     {
         wxCmdLineParam& param = m_data->m_paramDesc[n];
 
-        brief << _T(' ');
+        usage << _T(' ');
         if ( param.flags & wxCMD_LINE_PARAM_OPTIONAL )
         {
-            brief << _T('[');
+            usage << _T('[');
         }
 
-        brief << param.description;
+        usage << param.description;
 
         if ( param.flags & wxCMD_LINE_PARAM_MULTIPLE )
         {
-            brief << _T("...");
+            usage << _T("...");
         }
 
         if ( param.flags & wxCMD_LINE_PARAM_OPTIONAL )
         {
-            brief << _T(']');
+            usage << _T(']');
         }
     }
 
-    if ( !!m_data->m_logo )
-    {
-        wxLogMessage(m_data->m_logo);
-    }
-
-    // in console mode we want to show the brief usage message first, then the
-    // detailed one but in GUI build we give the details first and then the
-    // summary - like this, the brief message appears in the wxLogGui dialog,
-    // as expected
-#if !wxUSE_GUI
-    wxLogMessage(brief);
-#endif // !wxUSE_GUI
+    usage << _T('\n');
 
     // now construct the detailed help message
     size_t len, lenMax = 0;
-    count = namesOptions.GetCount();
+    count = namesOptions.size();
     for ( n = 0; n < count; n++ )
     {
         len = namesOptions[n].length();
@@ -943,22 +1056,16 @@ void wxCmdLineParser::Usage()
             lenMax = len;
     }
 
-    wxString detailed;
     for ( n = 0; n < count; n++ )
     {
         len = namesOptions[n].length();
-        detailed << namesOptions[n]
-                 << wxString(_T(' '), lenMax - len) << _T('\t')
-                 << descOptions[n]
-                 << _T('\n');
+        usage << namesOptions[n]
+              << wxString(_T(' '), lenMax - len) << _T('\t')
+              << descOptions[n]
+              << _T('\n');
     }
 
-    wxLogMessage(detailed);
-
-    // do it now if not done above
-#if wxUSE_GUI
-    wxLogMessage(brief);
-#endif // wxUSE_GUI
+    return usage;
 }
 
 // ----------------------------------------------------------------------------
@@ -974,14 +1081,64 @@ static wxString GetTypeName(wxCmdLineParamType type)
             wxFAIL_MSG( _T("unknown option type") );
             // still fall through
 
-        case wxCMD_LINE_VAL_STRING: s = _("str"); break;
-        case wxCMD_LINE_VAL_NUMBER: s = _("num"); break;
-        case wxCMD_LINE_VAL_DATE:   s = _("date"); break;
+        case wxCMD_LINE_VAL_STRING:
+            s = _("str");
+            break;
+
+        case wxCMD_LINE_VAL_NUMBER:
+            s = _("num");
+            break;
+
+        case wxCMD_LINE_VAL_DATE:
+            s = _("date");
+            break;
     }
 
     return s;
 }
 
+/*
+Returns a string which is equal to the string pointed to by p, but up to the
+point where p contains an character that's not allowed.
+Allowable characters are letters and numbers, and characters pointed to by
+the parameter allowedChars.
+
+For example, if p points to "abcde-@-_", and allowedChars is "-_",
+this function returns "abcde-".
+*/
+static wxString GetOptionName(const wxChar *p,
+    const wxChar *allowedChars)
+{
+    wxString argName;
+
+    while ( *p && (wxIsalnum(*p) || wxStrchr(allowedChars, *p)) )
+    {
+        argName += *p++;
+    }
+
+    return argName;
+}
+
+// Besides alphanumeric characters, short and long options can
+// have other characters.
+
+// A short option additionally can have these
+#define wxCMD_LINE_CHARS_ALLOWED_BY_SHORT_OPTION wxT("_?")
+
+// A long option can have the same characters as a short option and a '-'.
+#define wxCMD_LINE_CHARS_ALLOWED_BY_LONG_OPTION \
+    wxCMD_LINE_CHARS_ALLOWED_BY_SHORT_OPTION wxT("-")
+
+static wxString GetShortOptionName(const wxChar *p)
+{
+    return GetOptionName(p, wxCMD_LINE_CHARS_ALLOWED_BY_SHORT_OPTION);
+}
+
+static wxString GetLongOptionName(const wxChar *p)
+{
+    return GetOptionName(p, wxCMD_LINE_CHARS_ALLOWED_BY_LONG_OPTION);
+}
+
 #endif // wxUSE_CMDLINE_PARSER
 
 // ----------------------------------------------------------------------------
@@ -990,24 +1147,10 @@ static wxString GetTypeName(wxCmdLineParamType type)
 
 /*
    This function is mainly used under Windows (as under Unix we always get the
-   command line arguments as agrc/argv anyhow) and so it tries to handle the
-   Windows path names (separated by backslashes) correctly. For this it only
-   considers that a backslash may be used to escape another backslash (but
-   normally this is _not_ needed) or a quote but nothing else.
-
-   In particular, to pass a single argument containing a space to the program
-   it should be quoted:
-   
-   myprog.exe foo bar       -> argc = 3, argv[1] = "foo", argv[2] = "bar"
-   myprog.exe "foo bar"     -> argc = 2, argv[1] = "foo bar"
-
-   To pass an argument containing spaces and quotes, the latter should be
-   escaped with a backslash:
-
-   myprog.exe "foo \"bar\"" -> argc = 2, argv[1] = "foo "bar""
-
-   This hopefully matches the conventions used by Explorer/command line
-   interpreter under Windows. If not, this function should be fixed.
+   command line arguments as argc/argv anyhow) and so it tries to follow
+   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.
  */
 
 /* static */
@@ -1018,7 +1161,7 @@ wxArrayString wxCmdLineParser::ConvertStringToArgs(const wxChar *p)
     wxString arg;
     arg.reserve(1024);
 
-    bool isInsideQuotes = FALSE;
+    bool isInsideQuotes = false;
     for ( ;; )
     {
         // skip white space
@@ -1030,84 +1173,53 @@ wxArrayString wxCmdLineParser::ConvertStringToArgs(const wxChar *p)
             break;
 
         // parse this parameter
-        arg.clear();
-        for ( ;; p++ )
+        bool endParam = false;
+        bool lastBS = false;
+        for ( arg.clear(); !endParam; p++ )
         {
-            // do we have a (lone) backslash?
-            bool isQuotedByBS = FALSE;
-            while ( *p == _T('\\') )
-            {
-                p++;
-
-                // if we have 2 backslashes in a row, output one
-                if ( isQuotedByBS )
-                {
-                    arg += _T('\\');
-                    isQuotedByBS = FALSE;
-                }
-                else // the next char is quoted
-                {
-                    isQuotedByBS = TRUE;
-                }
-            }
-
-            bool skipChar = FALSE,
-                 endParam = FALSE;
             switch ( *p )
             {
                 case _T('"'):
-                    if ( !isQuotedByBS )
+                    if ( !lastBS )
                     {
-                        // don't put the quote itself in the arg
-                        skipChar = TRUE;
-
                         isInsideQuotes = !isInsideQuotes;
-                    }
-                    //else: insert a literal quote
 
+                        // don't put quote in arg
+                        continue;
+                    }
+                    //else: quote has no special meaning but the backslash
+                    //      still remains -- makes no sense but this is what
+                    //      Windows does
                     break;
 
                 case _T(' '):
                 case _T('\t'):
-                    // we intentionally don't check for preceding backslash
-                    // here as if we allowed it to be used to escape spaces the
-                    // cmd line of the form "foo.exe a:\ c:\bar" wouldn't be
-                    // parsed correctly
+                    // backslash does *not* quote the space, only quotes do
                     if ( isInsideQuotes )
                     {
-                        // preserve it, skip endParam below
+                        // skip assignment below
                         break;
                     }
-                    //else: fall through
+                    // fall through
 
                 case _T('\0'):
-                    endParam = TRUE;
-                    break;
+                    endParam = true;
 
-                default:
-                    if ( isQuotedByBS )
-                    {
-                        // ignore backslash before an ordinary character - this
-                        // is needed to properly handle the file names under
-                        // Windows appearing in the command line
-                        arg += _T('\\');
-                    }
+                    break;
             }
 
-            // end of argument?
             if ( endParam )
-                break;
-
-            // otherwise copy this char to arg
-            if ( !skipChar )
             {
-                arg += *p;
+                break;
             }
+
+            lastBS = *p == _T('\\');
+
+            arg += *p;
         }
 
-        args.Add(arg);
+        args.push_back(arg);
     }
 
     return args;
 }
-