1248 lines
37 KiB
C++
1248 lines
37 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: src/common/cmdline.cpp
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// Purpose: wxCmdLineParser implementation
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 05.01.00
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// RCS-ID: $Id: cmdline.cpp 42197 2006-10-21 14:04:27Z VZ $
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// Copyright: (c) 2000 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/dynarray.h"
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#include "wx/string.h"
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#include "wx/log.h"
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#include "wx/intl.h"
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#include "wx/app.h"
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#endif //WX_PRECOMP
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#include "wx/cmdline.h"
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#if wxUSE_CMDLINE_PARSER
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#include <ctype.h>
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#include "wx/datetime.h"
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#include "wx/msgout.h"
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#include "wx/filename.h"
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// ----------------------------------------------------------------------------
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// private functions
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// ----------------------------------------------------------------------------
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static wxString GetTypeName(wxCmdLineParamType type);
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static wxString GetOptionName(const wxChar *p, const wxChar *allowedChars);
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static wxString GetShortOptionName(const wxChar *p);
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static wxString GetLongOptionName(const wxChar *p);
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// ----------------------------------------------------------------------------
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// private structs
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// ----------------------------------------------------------------------------
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// an internal representation of an option
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struct wxCmdLineOption
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{
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wxCmdLineOption(wxCmdLineEntryType k,
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const wxString& shrt,
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const wxString& lng,
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const wxString& desc,
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wxCmdLineParamType typ,
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int fl)
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{
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wxASSERT_MSG( !shrt.empty() || !lng.empty(),
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_T("option should have at least one name") );
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wxASSERT_MSG
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(
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GetShortOptionName(shrt).Len() == shrt.Len(),
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wxT("Short option contains invalid characters")
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);
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wxASSERT_MSG
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(
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GetLongOptionName(lng).Len() == lng.Len(),
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wxT("Long option contains invalid characters")
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);
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kind = k;
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shortName = shrt;
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longName = lng;
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description = desc;
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type = typ;
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flags = fl;
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m_hasVal = false;
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}
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// can't use union easily here, so just store all possible data fields, we
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// don't waste much (might still use union later if the number of supported
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// types increases, so always use the accessor functions and don't access
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// the fields directly!)
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void Check(wxCmdLineParamType WXUNUSED_UNLESS_DEBUG(typ)) const
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{
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wxASSERT_MSG( type == typ, _T("type mismatch in wxCmdLineOption") );
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}
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long GetLongVal() const
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{ Check(wxCMD_LINE_VAL_NUMBER); return m_longVal; }
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const wxString& GetStrVal() const
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{ Check(wxCMD_LINE_VAL_STRING); return m_strVal; }
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#if wxUSE_DATETIME
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const wxDateTime& GetDateVal() const
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{ Check(wxCMD_LINE_VAL_DATE); return m_dateVal; }
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#endif // wxUSE_DATETIME
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void SetLongVal(long val)
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{ Check(wxCMD_LINE_VAL_NUMBER); m_longVal = val; m_hasVal = true; }
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void SetStrVal(const wxString& val)
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{ Check(wxCMD_LINE_VAL_STRING); m_strVal = val; m_hasVal = true; }
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#if wxUSE_DATETIME
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void SetDateVal(const wxDateTime& val)
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{ Check(wxCMD_LINE_VAL_DATE); m_dateVal = val; m_hasVal = true; }
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#endif // wxUSE_DATETIME
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void SetHasValue(bool hasValue = true) { m_hasVal = hasValue; }
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bool HasValue() const { return m_hasVal; }
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public:
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wxCmdLineEntryType kind;
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wxString shortName,
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longName,
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description;
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wxCmdLineParamType type;
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int flags;
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private:
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bool m_hasVal;
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long m_longVal;
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wxString m_strVal;
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#if wxUSE_DATETIME
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wxDateTime m_dateVal;
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#endif // wxUSE_DATETIME
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};
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struct wxCmdLineParam
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{
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wxCmdLineParam(const wxString& desc,
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wxCmdLineParamType typ,
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int fl)
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: description(desc)
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{
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type = typ;
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flags = fl;
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}
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wxString description;
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wxCmdLineParamType type;
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int flags;
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};
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WX_DECLARE_OBJARRAY(wxCmdLineOption, wxArrayOptions);
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WX_DECLARE_OBJARRAY(wxCmdLineParam, wxArrayParams);
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#include "wx/arrimpl.cpp"
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WX_DEFINE_OBJARRAY(wxArrayOptions)
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WX_DEFINE_OBJARRAY(wxArrayParams)
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// the parser internal state
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struct wxCmdLineParserData
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{
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// options
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wxString m_switchChars; // characters which may start an option
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bool m_enableLongOptions; // true if long options are enabled
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wxString m_logo; // some extra text to show in Usage()
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// cmd line data
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wxArrayString m_arguments; // == argv, argc == m_arguments.GetCount()
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wxArrayOptions m_options; // all possible options and switchrs
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wxArrayParams m_paramDesc; // description of all possible params
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wxArrayString m_parameters; // all params found
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// methods
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wxCmdLineParserData();
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void SetArguments(int argc, char **argv);
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#if wxUSE_UNICODE
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void SetArguments(int argc, wxChar **argv);
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#endif // wxUSE_UNICODE
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void SetArguments(const wxString& cmdline);
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int FindOption(const wxString& name);
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int FindOptionByLongName(const wxString& name);
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};
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// wxCmdLineParserData
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// ----------------------------------------------------------------------------
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wxCmdLineParserData::wxCmdLineParserData()
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{
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m_enableLongOptions = true;
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#ifdef __UNIX_LIKE__
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m_switchChars = _T("-");
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#else // !Unix
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m_switchChars = _T("/-");
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#endif
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}
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void wxCmdLineParserData::SetArguments(int argc, char **argv)
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{
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m_arguments.clear();
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for ( int n = 0; n < argc; n++ )
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{
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m_arguments.push_back(wxString::FromAscii(argv[n]));
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}
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}
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#if wxUSE_UNICODE
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void wxCmdLineParserData::SetArguments(int argc, wxChar **argv)
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{
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m_arguments.clear();
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for ( int n = 0; n < argc; n++ )
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{
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m_arguments.push_back(argv[n]);
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}
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}
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#endif // wxUSE_UNICODE
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void wxCmdLineParserData::SetArguments(const wxString& cmdLine)
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{
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m_arguments.clear();
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if(wxTheApp && wxTheApp->argc > 0)
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m_arguments.push_back(wxTheApp->argv[0]);
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else
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m_arguments.push_back(wxEmptyString);
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wxArrayString args = wxCmdLineParser::ConvertStringToArgs(cmdLine);
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WX_APPEND_ARRAY(m_arguments, args);
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}
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int wxCmdLineParserData::FindOption(const wxString& name)
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{
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if ( !name.empty() )
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{
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size_t count = m_options.GetCount();
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for ( size_t n = 0; n < count; n++ )
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{
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if ( m_options[n].shortName == name )
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{
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// found
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return n;
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}
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}
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}
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return wxNOT_FOUND;
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}
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int wxCmdLineParserData::FindOptionByLongName(const wxString& name)
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{
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size_t count = m_options.GetCount();
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for ( size_t n = 0; n < count; n++ )
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{
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if ( m_options[n].longName == name )
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{
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// found
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return n;
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}
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}
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return wxNOT_FOUND;
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}
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// ----------------------------------------------------------------------------
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// construction and destruction
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// ----------------------------------------------------------------------------
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void wxCmdLineParser::Init()
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{
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m_data = new wxCmdLineParserData;
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}
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void wxCmdLineParser::SetCmdLine(int argc, char **argv)
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{
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m_data->SetArguments(argc, argv);
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}
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#if wxUSE_UNICODE
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void wxCmdLineParser::SetCmdLine(int argc, wxChar **argv)
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{
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m_data->SetArguments(argc, argv);
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}
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#endif // wxUSE_UNICODE
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void wxCmdLineParser::SetCmdLine(const wxString& cmdline)
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{
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m_data->SetArguments(cmdline);
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}
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wxCmdLineParser::~wxCmdLineParser()
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{
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delete m_data;
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}
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// ----------------------------------------------------------------------------
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// options
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// ----------------------------------------------------------------------------
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void wxCmdLineParser::SetSwitchChars(const wxString& switchChars)
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{
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m_data->m_switchChars = switchChars;
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}
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void wxCmdLineParser::EnableLongOptions(bool enable)
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{
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m_data->m_enableLongOptions = enable;
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}
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bool wxCmdLineParser::AreLongOptionsEnabled()
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{
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return m_data->m_enableLongOptions;
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}
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void wxCmdLineParser::SetLogo(const wxString& logo)
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{
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m_data->m_logo = logo;
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}
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// ----------------------------------------------------------------------------
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// command line construction
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// ----------------------------------------------------------------------------
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void wxCmdLineParser::SetDesc(const wxCmdLineEntryDesc *desc)
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{
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for ( ;; desc++ )
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{
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switch ( desc->kind )
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{
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case wxCMD_LINE_SWITCH:
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AddSwitch(desc->shortName, desc->longName, desc->description,
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desc->flags);
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break;
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case wxCMD_LINE_OPTION:
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AddOption(desc->shortName, desc->longName, desc->description,
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desc->type, desc->flags);
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break;
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case wxCMD_LINE_PARAM:
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AddParam(desc->description, desc->type, desc->flags);
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break;
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default:
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wxFAIL_MSG( _T("unknown command line entry type") );
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// still fall through
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case wxCMD_LINE_NONE:
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return;
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}
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}
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}
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void wxCmdLineParser::AddSwitch(const wxString& shortName,
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const wxString& longName,
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const wxString& desc,
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int flags)
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{
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wxASSERT_MSG( m_data->FindOption(shortName) == wxNOT_FOUND,
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_T("duplicate switch") );
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wxCmdLineOption *option = new wxCmdLineOption(wxCMD_LINE_SWITCH,
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shortName, longName, desc,
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wxCMD_LINE_VAL_NONE, flags);
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m_data->m_options.Add(option);
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}
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void wxCmdLineParser::AddOption(const wxString& shortName,
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const wxString& longName,
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const wxString& desc,
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wxCmdLineParamType type,
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int flags)
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{
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wxASSERT_MSG( m_data->FindOption(shortName) == wxNOT_FOUND,
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_T("duplicate option") );
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wxCmdLineOption *option = new wxCmdLineOption(wxCMD_LINE_OPTION,
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shortName, longName, desc,
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type, flags);
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m_data->m_options.Add(option);
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}
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void wxCmdLineParser::AddParam(const wxString& desc,
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wxCmdLineParamType type,
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int flags)
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{
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// do some consistency checks: a required parameter can't follow an
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// optional one and nothing should follow a parameter with MULTIPLE flag
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#ifdef __WXDEBUG__
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if ( !m_data->m_paramDesc.IsEmpty() )
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{
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wxCmdLineParam& param = m_data->m_paramDesc.Last();
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wxASSERT_MSG( !(param.flags & wxCMD_LINE_PARAM_MULTIPLE),
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_T("all parameters after the one with wxCMD_LINE_PARAM_MULTIPLE style will be ignored") );
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if ( !(flags & wxCMD_LINE_PARAM_OPTIONAL) )
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{
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wxASSERT_MSG( !(param.flags & wxCMD_LINE_PARAM_OPTIONAL),
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_T("a required parameter can't follow an optional one") );
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}
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}
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#endif // Debug
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wxCmdLineParam *param = new wxCmdLineParam(desc, type, flags);
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m_data->m_paramDesc.Add(param);
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}
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// ----------------------------------------------------------------------------
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// access to parse command line
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// ----------------------------------------------------------------------------
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bool wxCmdLineParser::Found(const wxString& name) const
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{
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int i = m_data->FindOption(name);
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if ( i == wxNOT_FOUND )
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i = m_data->FindOptionByLongName(name);
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wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown switch") );
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wxCmdLineOption& opt = m_data->m_options[(size_t)i];
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if ( !opt.HasValue() )
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return false;
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return true;
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}
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bool wxCmdLineParser::Found(const wxString& name, wxString *value) const
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{
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int i = m_data->FindOption(name);
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if ( i == wxNOT_FOUND )
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i = m_data->FindOptionByLongName(name);
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wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown option") );
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wxCmdLineOption& opt = m_data->m_options[(size_t)i];
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if ( !opt.HasValue() )
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return false;
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wxCHECK_MSG( value, false, _T("NULL pointer in wxCmdLineOption::Found") );
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*value = opt.GetStrVal();
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return true;
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}
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bool wxCmdLineParser::Found(const wxString& name, long *value) const
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{
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int i = m_data->FindOption(name);
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if ( i == wxNOT_FOUND )
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i = m_data->FindOptionByLongName(name);
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wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown option") );
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wxCmdLineOption& opt = m_data->m_options[(size_t)i];
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if ( !opt.HasValue() )
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return false;
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wxCHECK_MSG( value, false, _T("NULL pointer in wxCmdLineOption::Found") );
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*value = opt.GetLongVal();
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return true;
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}
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#if wxUSE_DATETIME
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bool wxCmdLineParser::Found(const wxString& name, wxDateTime *value) const
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{
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int i = m_data->FindOption(name);
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if ( i == wxNOT_FOUND )
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i = m_data->FindOptionByLongName(name);
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wxCHECK_MSG( i != wxNOT_FOUND, false, _T("unknown option") );
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wxCmdLineOption& opt = m_data->m_options[(size_t)i];
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if ( !opt.HasValue() )
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return false;
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wxCHECK_MSG( value, false, _T("NULL pointer in wxCmdLineOption::Found") );
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*value = opt.GetDateVal();
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return true;
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}
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#endif // wxUSE_DATETIME
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size_t wxCmdLineParser::GetParamCount() const
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{
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return m_data->m_parameters.size();
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}
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wxString wxCmdLineParser::GetParam(size_t n) const
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{
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wxCHECK_MSG( n < GetParamCount(), wxEmptyString, _T("invalid param index") );
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return m_data->m_parameters[n];
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}
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// Resets switches and options
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void wxCmdLineParser::Reset()
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{
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for ( size_t i = 0; i < m_data->m_options.Count(); i++ )
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{
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wxCmdLineOption& opt = m_data->m_options[i];
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opt.SetHasValue(false);
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}
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}
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// ----------------------------------------------------------------------------
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// the real work is done here
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// ----------------------------------------------------------------------------
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int wxCmdLineParser::Parse(bool showUsage)
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{
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bool maybeOption = true; // can the following arg be an option?
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bool ok = true; // true until an error is detected
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bool helpRequested = false; // true if "-h" was given
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bool hadRepeatableParam = false; // true if found param with MULTIPLE flag
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size_t currentParam = 0; // the index in m_paramDesc
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size_t countParam = m_data->m_paramDesc.GetCount();
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wxString errorMsg;
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Reset();
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// parse everything
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wxString arg;
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size_t count = m_data->m_arguments.size();
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for ( size_t n = 1; ok && (n < count); n++ ) // 0 is program name
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{
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arg = m_data->m_arguments[n];
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// special case: "--" should be discarded and all following arguments
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// should be considered as parameters, even if they start with '-' and
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// not like options (this is POSIX-like)
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if ( arg == _T("--") )
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{
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maybeOption = false;
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continue;
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}
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// empty argument or just '-' is not an option but a parameter
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if ( maybeOption && arg.length() > 1 &&
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wxStrchr(m_data->m_switchChars, arg[0u]) )
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{
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bool isLong;
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wxString name;
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int optInd = wxNOT_FOUND; // init to suppress warnings
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// an option or a switch: find whether it's a long or a short one
|
|
if ( arg[0u] == _T('-') && arg[1u] == _T('-') )
|
|
{
|
|
// a long one
|
|
isLong = true;
|
|
|
|
// Skip leading "--"
|
|
const wxChar *p = arg.c_str() + 2;
|
|
|
|
bool longOptionsEnabled = AreLongOptionsEnabled();
|
|
|
|
name = GetLongOptionName(p);
|
|
|
|
if (longOptionsEnabled)
|
|
{
|
|
optInd = m_data->FindOptionByLongName(name);
|
|
if ( optInd == wxNOT_FOUND )
|
|
{
|
|
errorMsg << wxString::Format(_("Unknown long option '%s'"), name.c_str())
|
|
<< _T('\n');
|
|
}
|
|
}
|
|
else
|
|
{
|
|
optInd = wxNOT_FOUND; // Sanity check
|
|
|
|
// Print the argument including leading "--"
|
|
name.Prepend( wxT("--") );
|
|
errorMsg << wxString::Format(_("Unknown option '%s'"), name.c_str())
|
|
<< _T('\n');
|
|
}
|
|
|
|
}
|
|
else // not a long option
|
|
{
|
|
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;
|
|
|
|
name = GetShortOptionName(p);
|
|
|
|
size_t len = name.length();
|
|
do
|
|
{
|
|
if ( len == 0 )
|
|
{
|
|
// 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');
|
|
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
optInd = m_data->FindOption(name.Left(len));
|
|
|
|
// will try with one character less the next time
|
|
len--;
|
|
}
|
|
}
|
|
while ( optInd == wxNOT_FOUND );
|
|
|
|
len++; // compensates extra len-- above
|
|
if ( (optInd != wxNOT_FOUND) && (len != name.length()) )
|
|
{
|
|
// first of all, the option name is only part of this
|
|
// string
|
|
name = name.Left(len);
|
|
|
|
// our option is only part of this argument, there is
|
|
// something else in it - it is either the value of this
|
|
// option or other switches if it is a switch
|
|
if ( m_data->m_options[(size_t)optInd].kind
|
|
== wxCMD_LINE_SWITCH )
|
|
{
|
|
// pretend that all the rest of the argument is the
|
|
// next argument, in fact
|
|
wxString arg2 = arg[0u];
|
|
arg2 += arg.Mid(len + 1); // +1 for leading '-'
|
|
|
|
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
|
|
}
|
|
}
|
|
|
|
if ( optInd == wxNOT_FOUND )
|
|
{
|
|
ok = false;
|
|
|
|
continue; // will break, in fact
|
|
}
|
|
|
|
// look at what follows:
|
|
|
|
// +1 for leading '-'
|
|
const wxChar *p = arg.c_str() + 1 + name.length();
|
|
if ( isLong )
|
|
p++; // for another leading '-'
|
|
|
|
wxCmdLineOption& opt = m_data->m_options[(size_t)optInd];
|
|
if ( opt.kind == wxCMD_LINE_SWITCH )
|
|
{
|
|
// we must check that there is no value following the switch
|
|
if ( *p != _T('\0') )
|
|
{
|
|
errorMsg << wxString::Format(_("Unexpected characters following option '%s'."), name.c_str())
|
|
<< _T('\n');
|
|
ok = false;
|
|
}
|
|
else // no value, as expected
|
|
{
|
|
// nothing more to do
|
|
opt.SetHasValue();
|
|
|
|
if ( opt.flags & wxCMD_LINE_OPTION_HELP )
|
|
{
|
|
helpRequested = true;
|
|
|
|
// it's not an error, but we still stop here
|
|
ok = false;
|
|
}
|
|
}
|
|
}
|
|
else // it's an option. not a switch
|
|
{
|
|
// get the value
|
|
if ( isLong )
|
|
{
|
|
if ( *p++ != _T('=') )
|
|
{
|
|
errorMsg << wxString::Format(_("Option '%s' requires a value, '=' expected."), name.c_str())
|
|
<< _T('\n');
|
|
|
|
ok = false;
|
|
}
|
|
}
|
|
else // short option
|
|
{
|
|
switch ( *p )
|
|
{
|
|
case _T('='):
|
|
case _T(':'):
|
|
// the value follows
|
|
p++;
|
|
break;
|
|
|
|
case 0:
|
|
// the value is in the next argument
|
|
if ( ++n == count )
|
|
{
|
|
// ... but there is none
|
|
errorMsg << wxString::Format(_("Option '%s' requires a value."),
|
|
name.c_str())
|
|
<< _T('\n');
|
|
|
|
ok = false;
|
|
}
|
|
else
|
|
{
|
|
// ... take it from there
|
|
p = m_data->m_arguments[n].c_str();
|
|
}
|
|
break;
|
|
|
|
default:
|
|
// the value is right here: this may be legal or
|
|
// not depending on the option style
|
|
if ( opt.flags & wxCMD_LINE_NEEDS_SEPARATOR )
|
|
{
|
|
errorMsg << wxString::Format(_("Separator expected after the option '%s'."),
|
|
name.c_str())
|
|
<< _T('\n');
|
|
|
|
ok = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ok )
|
|
{
|
|
wxString value = p;
|
|
switch ( opt.type )
|
|
{
|
|
default:
|
|
wxFAIL_MSG( _T("unknown option type") );
|
|
// still fall through
|
|
|
|
case wxCMD_LINE_VAL_STRING:
|
|
opt.SetStrVal(value);
|
|
break;
|
|
|
|
case wxCMD_LINE_VAL_NUMBER:
|
|
{
|
|
long val;
|
|
if ( value.ToLong(&val) )
|
|
{
|
|
opt.SetLongVal(val);
|
|
}
|
|
else
|
|
{
|
|
errorMsg << wxString::Format(_("'%s' is not a correct numeric value for option '%s'."),
|
|
value.c_str(), name.c_str())
|
|
<< _T('\n');
|
|
|
|
ok = false;
|
|
}
|
|
}
|
|
break;
|
|
|
|
#if wxUSE_DATETIME
|
|
case wxCMD_LINE_VAL_DATE:
|
|
{
|
|
wxDateTime dt;
|
|
const wxChar *res = dt.ParseDate(value);
|
|
if ( !res || *res )
|
|
{
|
|
errorMsg << wxString::Format(_("Option '%s': '%s' cannot be converted to a date."),
|
|
name.c_str(), value.c_str())
|
|
<< _T('\n');
|
|
|
|
ok = false;
|
|
}
|
|
else
|
|
{
|
|
opt.SetDateVal(dt);
|
|
}
|
|
}
|
|
break;
|
|
#endif // wxUSE_DATETIME
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else // not an option, must be a parameter
|
|
{
|
|
if ( currentParam < countParam )
|
|
{
|
|
wxCmdLineParam& param = m_data->m_paramDesc[currentParam];
|
|
|
|
// TODO check the param type
|
|
|
|
m_data->m_parameters.push_back(arg);
|
|
|
|
if ( !(param.flags & wxCMD_LINE_PARAM_MULTIPLE) )
|
|
{
|
|
currentParam++;
|
|
}
|
|
else
|
|
{
|
|
wxASSERT_MSG( currentParam == countParam - 1,
|
|
_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;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
errorMsg << wxString::Format(_("Unexpected parameter '%s'"), arg.c_str())
|
|
<< _T('\n');
|
|
|
|
ok = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// verify that all mandatory options were given
|
|
if ( ok )
|
|
{
|
|
size_t countOpt = m_data->m_options.GetCount();
|
|
for ( size_t n = 0; ok && (n < countOpt); n++ )
|
|
{
|
|
wxCmdLineOption& opt = m_data->m_options[n];
|
|
if ( (opt.flags & wxCMD_LINE_OPTION_MANDATORY) && !opt.HasValue() )
|
|
{
|
|
wxString optName;
|
|
if ( !opt.longName )
|
|
{
|
|
optName = opt.shortName;
|
|
}
|
|
else
|
|
{
|
|
if ( AreLongOptionsEnabled() )
|
|
{
|
|
optName.Printf( _("%s (or %s)"),
|
|
opt.shortName.c_str(),
|
|
opt.longName.c_str() );
|
|
}
|
|
else
|
|
{
|
|
optName.Printf( wxT("%s"),
|
|
opt.shortName.c_str() );
|
|
}
|
|
}
|
|
|
|
errorMsg << wxString::Format(_("The value for the option '%s' must be specified."),
|
|
optName.c_str())
|
|
<< _T('\n');
|
|
|
|
ok = false;
|
|
}
|
|
}
|
|
|
|
for ( ; ok && (currentParam < countParam); currentParam++ )
|
|
{
|
|
wxCmdLineParam& param = m_data->m_paramDesc[currentParam];
|
|
if ( (currentParam == countParam - 1) &&
|
|
(param.flags & wxCMD_LINE_PARAM_MULTIPLE) &&
|
|
hadRepeatableParam )
|
|
{
|
|
// special case: currentParam wasn't incremented, but we did
|
|
// have it, so don't give error
|
|
continue;
|
|
}
|
|
|
|
if ( !(param.flags & wxCMD_LINE_PARAM_OPTIONAL) )
|
|
{
|
|
errorMsg << wxString::Format(_("The required parameter '%s' was not specified."),
|
|
param.description.c_str())
|
|
<< _T('\n');
|
|
|
|
ok = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// 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)) )
|
|
{
|
|
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;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// give the usage message
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxCmdLineParser::Usage()
|
|
{
|
|
wxMessageOutput* msgOut = wxMessageOutput::Get();
|
|
if ( msgOut )
|
|
{
|
|
msgOut->Printf( wxT("%s"), GetUsageString().c_str() );
|
|
}
|
|
else
|
|
{
|
|
wxFAIL_MSG( _T("no wxMessageOutput object?") );
|
|
}
|
|
}
|
|
|
|
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 usage;
|
|
wxArrayString namesOptions, descOptions;
|
|
|
|
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];
|
|
|
|
usage << _T(' ');
|
|
if ( !(opt.flags & wxCMD_LINE_OPTION_MANDATORY) )
|
|
{
|
|
usage << _T('[');
|
|
}
|
|
|
|
if ( !opt.shortName.empty() )
|
|
{
|
|
usage << chSwitch << opt.shortName;
|
|
}
|
|
else if ( areLongOptionsEnabled && !opt.longName.empty() )
|
|
{
|
|
usage << _T("--") << opt.longName;
|
|
}
|
|
else
|
|
{
|
|
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;
|
|
|
|
if ( !opt.shortName.empty() )
|
|
{
|
|
option << _T(" ") << chSwitch << opt.shortName;
|
|
}
|
|
|
|
if ( areLongOptionsEnabled && !opt.longName.empty() )
|
|
{
|
|
option << (option.empty() ? _T(" ") : _T(", "))
|
|
<< _T("--") << 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;
|
|
}
|
|
|
|
if ( !(opt.flags & wxCMD_LINE_OPTION_MANDATORY) )
|
|
{
|
|
usage << _T(']');
|
|
}
|
|
|
|
namesOptions.push_back(option);
|
|
descOptions.push_back(opt.description);
|
|
}
|
|
|
|
count = m_data->m_paramDesc.GetCount();
|
|
for ( n = 0; n < count; n++ )
|
|
{
|
|
wxCmdLineParam& param = m_data->m_paramDesc[n];
|
|
|
|
usage << _T(' ');
|
|
if ( param.flags & wxCMD_LINE_PARAM_OPTIONAL )
|
|
{
|
|
usage << _T('[');
|
|
}
|
|
|
|
usage << param.description;
|
|
|
|
if ( param.flags & wxCMD_LINE_PARAM_MULTIPLE )
|
|
{
|
|
usage << _T("...");
|
|
}
|
|
|
|
if ( param.flags & wxCMD_LINE_PARAM_OPTIONAL )
|
|
{
|
|
usage << _T(']');
|
|
}
|
|
}
|
|
|
|
usage << _T('\n');
|
|
|
|
// now construct the detailed help message
|
|
size_t len, lenMax = 0;
|
|
count = namesOptions.size();
|
|
for ( n = 0; n < count; n++ )
|
|
{
|
|
len = namesOptions[n].length();
|
|
if ( len > lenMax )
|
|
lenMax = len;
|
|
}
|
|
|
|
for ( n = 0; n < count; n++ )
|
|
{
|
|
len = namesOptions[n].length();
|
|
usage << namesOptions[n]
|
|
<< wxString(_T(' '), lenMax - len) << _T('\t')
|
|
<< descOptions[n]
|
|
<< _T('\n');
|
|
}
|
|
|
|
return usage;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// private functions
|
|
// ----------------------------------------------------------------------------
|
|
|
|
static wxString GetTypeName(wxCmdLineParamType type)
|
|
{
|
|
wxString s;
|
|
switch ( type )
|
|
{
|
|
default:
|
|
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;
|
|
}
|
|
|
|
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
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// global functions
|
|
// ----------------------------------------------------------------------------
|
|
|
|
/*
|
|
This function is mainly used under Windows (as under Unix we always get the
|
|
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 */
|
|
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
|
|
bool endParam = false;
|
|
bool lastBS = false;
|
|
for ( arg.clear(); !endParam; p++ )
|
|
{
|
|
switch ( *p )
|
|
{
|
|
case _T('"'):
|
|
if ( !lastBS )
|
|
{
|
|
isInsideQuotes = !isInsideQuotes;
|
|
|
|
// 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'):
|
|
// backslash does *not* quote the space, only quotes do
|
|
if ( isInsideQuotes )
|
|
{
|
|
// skip assignment below
|
|
break;
|
|
}
|
|
// fall through
|
|
|
|
case _T('\0'):
|
|
endParam = true;
|
|
|
|
break;
|
|
}
|
|
|
|
if ( endParam )
|
|
{
|
|
break;
|
|
}
|
|
|
|
lastBS = *p == _T('\\');
|
|
|
|
arg += *p;
|
|
}
|
|
|
|
args.push_back(arg);
|
|
}
|
|
|
|
return args;
|
|
}
|