X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1e6feb95a79834836e88143b15d9f424ebe79621..21a77f6e5008e7c6e15fc5615c917f13793e6136:/src/common/cmdline.cpp

diff --git a/src/common/cmdline.cpp b/src/common/cmdline.cpp
index 49f362bfa0..2c5ea56421 100644
--- a/src/common/cmdline.cpp
+++ b/src/common/cmdline.cpp
@@ -28,6 +28,8 @@
     #pragma hdrstop
 #endif
 
+#include "wx/cmdline.h"
+
 #if wxUSE_CMDLINE_PARSER
 
 #ifndef WX_PRECOMP
@@ -42,7 +44,6 @@
 #include <ctype.h>
 
 #include "wx/datetime.h"
-#include "wx/cmdline.h"
 
 // ----------------------------------------------------------------------------
 // private functions
@@ -64,6 +65,9 @@ struct wxCmdLineOption
                     wxCmdLineParamType typ,
                     int fl)
     {
+        wxASSERT_MSG( !shrt.empty() || !lng.empty(),
+                      _T("option should have at least one name") );
+
         kind = k;
 
         shortName = shrt;
@@ -105,7 +109,9 @@ struct wxCmdLineOption
 
 public:
     wxCmdLineEntryType kind;
-    wxString shortName, longName, description;
+    wxString shortName,
+             longName,
+             description;
     wxCmdLineParamType type;
     int flags;
 
@@ -157,7 +163,7 @@ struct wxCmdLineParserData
 
     // methods
     wxCmdLineParserData();
-    void SetArguments(int argc, char **argv);
+    void SetArguments(int argc, wxChar **argv);
     void SetArguments(const wxString& cmdline);
 
     int FindOption(const wxString& name);
@@ -182,7 +188,7 @@ wxCmdLineParserData::wxCmdLineParserData()
 #endif
 }
 
-void wxCmdLineParserData::SetArguments(int argc, char **argv)
+void wxCmdLineParserData::SetArguments(int argc, wxChar **argv)
 {
     m_arguments.Empty();
 
@@ -198,55 +204,23 @@ void wxCmdLineParserData::SetArguments(const wxString& cmdLine)
 
     m_arguments.Add(wxTheApp->GetAppName());
 
-    // Break up string
-    // Treat strings enclosed in double-quotes as single arguments
-    int i = 0;
-    int len = cmdLine.Length();
-    while (i < len)
-    {
-        // Skip whitespace
-        while ((i < len) && wxIsspace(cmdLine.GetChar(i)))
-            i ++;
-
-        if (i < len)
-        {
-            if (cmdLine.GetChar(i) == wxT('"')) // We found the start of a string
-            {
-                i ++;
-                int first = i;
-                while ((i < len) && (cmdLine.GetChar(i) != wxT('"')))
-                    i ++;
-
-                wxString arg(cmdLine.Mid(first, (i - first)));
-
-                m_arguments.Add(arg);
-
-                if (i < len)
-                    i ++; // Skip past 2nd quote
-            }
-            else // Unquoted argument
-            {
-                int first = i;
-                while ((i < len) && !wxIsspace(cmdLine.GetChar(i)))
-                    i ++;
-
-                wxString arg(cmdLine.Mid(first, (i - first)));
+    wxArrayString args = wxCmdLineParser::ConvertStringToArgs(cmdLine);
 
-                m_arguments.Add(arg);
-            }
-        }
-    }
+    WX_APPEND_ARRAY(m_arguments, args);
 }
 
 int wxCmdLineParserData::FindOption(const wxString& name)
 {
-    size_t count = m_options.GetCount();
-    for ( size_t n = 0; n < count; n++ )
+    if ( !name.empty() )
     {
-        if ( m_options[n].shortName == name )
+        size_t count = m_options.GetCount();
+        for ( size_t n = 0; n < count; n++ )
         {
-            // found
-            return n;
+            if ( m_options[n].shortName == name )
+            {
+                // found
+                return n;
+            }
         }
     }
 
@@ -277,7 +251,7 @@ void wxCmdLineParser::Init()
     m_data = new wxCmdLineParserData;
 }
 
-void wxCmdLineParser::SetCmdLine(int argc, char **argv)
+void wxCmdLineParser::SetCmdLine(int argc, wxChar **argv)
 {
     m_data->SetArguments(argc, argv);
 }
@@ -410,6 +384,9 @@ void wxCmdLineParser::AddParam(const wxString& desc,
 bool wxCmdLineParser::Found(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") );
 
     wxCmdLineOption& opt = m_data->m_options[(size_t)i];
@@ -422,6 +399,9 @@ bool wxCmdLineParser::Found(const wxString& name) const
 bool wxCmdLineParser::Found(const wxString& name, wxString *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") );
 
     wxCmdLineOption& opt = m_data->m_options[(size_t)i];
@@ -438,6 +418,9 @@ bool wxCmdLineParser::Found(const wxString& name, wxString *value) const
 bool wxCmdLineParser::Found(const wxString& name, long *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") );
 
     wxCmdLineOption& opt = m_data->m_options[(size_t)i];
@@ -454,6 +437,9 @@ bool wxCmdLineParser::Found(const wxString& name, long *value) const
 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") );
 
     wxCmdLineOption& opt = m_data->m_options[(size_t)i];
@@ -474,6 +460,8 @@ size_t wxCmdLineParser::GetParamCount() const
 
 wxString wxCmdLineParser::GetParam(size_t n) const
 {
+    wxCHECK_MSG( n < GetParamCount(), wxEmptyString, _T("invalid param index") );
+
     return m_data->m_parameters[n];
 }
 
@@ -492,7 +480,7 @@ void wxCmdLineParser::Reset()
 // the real work is done here
 // ----------------------------------------------------------------------------
 
-int wxCmdLineParser::Parse()
+int wxCmdLineParser::Parse(bool showUsage)
 {
     bool maybeOption = TRUE;    // can the following arg be an option?
     bool ok = TRUE;             // TRUE until an error is detected
@@ -819,7 +807,7 @@ int wxCmdLineParser::Parse()
         }
     }
 
-    if ( !ok )
+    if ( !ok && showUsage )
     {
         Usage();
     }
@@ -865,13 +853,30 @@ void wxCmdLineParser::Usage()
             brief << _T('[');
         }
 
-        brief << chSwitch << opt.shortName;
+        if ( !opt.shortName.empty() )
+        {
+            brief << chSwitch << opt.shortName;
+        }
+        else if ( !opt.longName.empty() )
+        {
+            brief << _T("--") << opt.longName;
+        }
+        else
+        {
+            wxFAIL_MSG( _T("option without neither short nor long name?") );
+        }
 
         wxString option;
-        option << _T("  ") << chSwitch << opt.shortName;
-        if ( !!opt.longName )
+
+        if ( !opt.shortName.empty() )
         {
-            option << _T("  --") << opt.longName;
+            option << _T("  ") << chSwitch << opt.shortName;
+        }
+
+        if ( !opt.longName.empty() )
+        {
+            option << (option.empty() ? _T("  ") : _T(", "))
+                   << _T("--") << opt.longName;
         }
 
         if ( opt.kind != wxCMD_LINE_SWITCH )
@@ -920,7 +925,13 @@ void wxCmdLineParser::Usage()
         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
 
     // now construct the detailed help message
     size_t len, lenMax = 0;
@@ -943,10 +954,15 @@ void wxCmdLineParser::Usage()
     }
 
     wxLogMessage(detailed);
+
+    // do it now if not done above
+#if wxUSE_GUI
+    wxLogMessage(brief);
+#endif // wxUSE_GUI
 }
 
 // ----------------------------------------------------------------------------
-// global functions
+// private functions
 // ----------------------------------------------------------------------------
 
 static wxString GetTypeName(wxCmdLineParamType type)
@@ -967,3 +983,131 @@ static wxString GetTypeName(wxCmdLineParamType type)
 }
 
 #endif // wxUSE_CMDLINE_PARSER
+
+// ----------------------------------------------------------------------------
+// global functions
+// ----------------------------------------------------------------------------
+
+/*
+   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.
+ */
+
+/* static */
+wxArrayString wxCmdLineParser::ConvertStringToArgs(const wxChar *p)
+{
+    wxArrayString args;
+
+    wxString arg;
+    arg.reserve(1024);
+
+    bool isInsideQuotes = FALSE;
+    for ( ;; )
+    {
+        // skip white space
+        while ( *p == _T(' ') || *p == _T('\t') )
+            p++;
+
+        // anything left?
+        if ( *p == _T('\0') )
+            break;
+
+        // parse this parameter
+        arg.clear();
+        for ( ;; 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 )
+                    {
+                        // don't put the quote itself in the arg
+                        skipChar = TRUE;
+
+                        isInsideQuotes = !isInsideQuotes;
+                    }
+                    //else: insert a literal quote
+
+                    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
+                    if ( isInsideQuotes )
+                    {
+                        // preserve it, skip endParam below
+                        break;
+                    }
+                    //else: fall through
+
+                case _T('\0'):
+                    endParam = TRUE;
+                    break;
+
+                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('\\');
+                    }
+            }
+
+            // end of argument?
+            if ( endParam )
+                break;
+
+            // otherwise copy this char to arg
+            if ( !skipChar )
+            {
+                arg += *p;
+            }
+        }
+
+        args.Add(arg);
+    }
+
+    return args;
+}
+