\section{\class{wxCmdLineParser}}\label{wxcmdlineparser}
-wxCmdLineParser is a class for parsing command line.
+wxCmdLineParser is a class for parsing the command line.
It has the following features:
-\begin{enumerate}
+
+\begin{enumerate}\itemsep=0pt
\item distinguishes options, switches and parameters; allows option grouping
\item allows both short and long options
\item automatically generates the usage message from the command line description
\end{enumerate}
To use it you should follow these steps:
-\begin{enumerate}
+
+\begin{enumerate}\itemsep=0pt
\item \helpref{construct}{wxcmdlineparserconstruction} an object of this class
giving it the command line to parse and optionally its description or use
{\tt AddXXX()} functions later
<wx/cmdline.h>
+\wxheading{Library}
+
+\helpref{wxBase}{librarieslist}
+
\wxheading{Constants}
The structure wxCmdLineEntryDesc is used to describe the one command
struct wxCmdLineEntryDesc
{
wxCmdLineEntryType kind;
- const wxChar *shortName;
- const wxChar *longName;
- const wxChar *description;
+ wxString shortName;
+ wxString longName;
+ wxString description;
wxCmdLineParamType type;
int flags;
};
The type of a command line entity is in the {\tt kind} field and may be one of
the following constants:
-{\small \begin{verbatim}
+
+{\small%
+\begin{verbatim}
enum wxCmdLineEntryType
{
- wxCMD\_LINE\_SWITCH,
- wxCMD\_LINE\_OPTION,
- wxCMD\_LINE\_PARAM,
- wxCMD\_LINE\_NONE // use this to terminate the list
+ wxCMD_LINE_SWITCH,
+ wxCMD_LINE_OPTION,
+ wxCMD_LINE_PARAM,
+ wxCMD_LINE_NONE // use this to terminate the list
+}
+\end{verbatim}
}
-\end{verbatim}}
The field {\tt shortName} is the usual, short, name of the switch or the option.
-{\tt longName} is the corresponding long name or NULL if the option has no long
+{\tt longName} is the corresponding long name or empty if the option has no long
name. Both of these fields are unused for the parameters. Both the short and
long option names can contain only letters, digits and the underscores.
The possible values of {\tt type} which specifies the type of the value accepted
by an option or parameter are:
-{\small \begin{verbatim}
+
+{\small%
+\begin{verbatim}
enum wxCmdLineParamType
{
- wxCMD\_LINE\_VAL\_STRING, // default
- wxCMD\_LINE\_VAL\_NUMBER,
- wxCMD\_LINE\_VAL\_DATE,
- wxCMD\_LINE\_VAL\_NONE
+ wxCMD_LINE_VAL_STRING, // default
+ wxCMD_LINE_VAL_NUMBER,
+ wxCMD_LINE_VAL_DATE,
+ wxCMD_LINE_VAL_NONE
+}
+\end{verbatim}
}
-\end{verbatim}}
Finally, the {\tt flags} field is a combination of the following bit masks:
-{\small \begin{verbatim}
+
+{\small%
+\begin{verbatim}
enum
{
- wxCMD\_LINE\_OPTION\_MANDATORY = 0x01, // this option must be given
- wxCMD\_LINE\_PARAM\_OPTIONAL = 0x02, // the parameter may be omitted
- wxCMD\_LINE\_PARAM\_MULTIPLE = 0x04, // the parameter may be repeated
- wxCMD\_LINE\_OPTION\_HELP = 0x08, // this option is a help request
- wxCMD\_LINE\_NEEDS\_SEPARATOR = 0x10, // must have sep before the value
+ wxCMD_LINE_OPTION_MANDATORY = 0x01, // this option must be given
+ wxCMD_LINE_PARAM_OPTIONAL = 0x02, // the parameter may be omitted
+ wxCMD_LINE_PARAM_MULTIPLE = 0x04, // the parameter may be repeated
+ wxCMD_LINE_OPTION_HELP = 0x08, // this option is a help request
+ wxCMD_LINE_NEEDS_SEPARATOR = 0x10, // must have sep before the value
+}
+\end{verbatim}
}
-\end{verbatim}}
Notice that by default (i.e. if flags are just $0$), options are optional (sic)
and each call to \helpref{AddParam()}{wxcmdlineparseraddparam} allows one more
%%%%%%%%%%%%% Methods by group %%%%%%%%%%%%%
\latexignore{\rtfignore{\wxheading{Function groups}}}
+
\membersection{Construction}\label{wxcmdlineparserconstruction}
Before \helpref{Parse}{wxcmdlineparserparse} can be called, the command line
\helpref{Parse}{wxcmdlineparserparse}.
To specify the command line to parse you may use either one of constructors
-accepting it (\helpref{wxCmdLineParser(argc, argv)}{wxcmdlineparserwxcmdlineparserargc} or
-\helpref{wxCmdLineParser}{wxcmdlineparserwxcmdlineparserdescargc} usually) or,
-if you use \helpref{the default constructor}{wxcmdlineparserwxcmdlineparserdef},
-you can do it later by calling
-\helpref{SetCmdLine}{wxcmdlineparsersetcmdlineargc}.
+accepting it (\tt{wxCmdLineParser(argc, argv)} or \tt{wxCmdLineParser(const wxString&)} usually)
+or, if you use the default constructor, you can do it later by calling
+\helpref{SetCmdLine}{wxcmdlineparsersetcmdline}.
The same holds for command line description: it can be specified either in
-the constructor (\helpref{without command line}{wxcmdlineparserwxcmdlineparserdesc} or
-\helpref{together with it}{wxcmdlineparserwxcmdlineparserdescargc}) or
-constructed later using either \helpref{SetDesc}{wxcmdlineparsersetdesc} or
-combination of \helpref{AddSwitch}{wxcmdlineparseraddswitch},
+the \helpref{constructor}{wxcmdlineparserwxcmdlineparserctor} (with or without
+the command line itself) or constructed later using either
+\helpref{SetDesc}{wxcmdlineparsersetdesc} or combination of
+\helpref{AddSwitch}{wxcmdlineparseraddswitch},
\helpref{AddOption}{wxcmdlineparseraddoption} and
\helpref{AddParam}{wxcmdlineparseraddparam} methods.
Using constructors or \helpref{SetDesc}{wxcmdlineparsersetdesc} uses a (usually
{\tt const static}) table containing the command line description. If you want
-to decide which options to acccept during the run-time, using one of the
+to decide which options to accept during the run-time, using one of the
{\tt AddXXX()} functions above might be preferable.
+
\membersection{Customization}\label{wxcmdlineparsercustomization}
wxCmdLineParser has several global options which may be changed by the
application-specific text before the explanation given by
\helpref{Usage}{wxcmdlineparserusage} function.
+
\membersection{Parsing command line}\label{wxcmdlineparserparsing}
-After the command line description was constructed and the desiredoptions were
+After the command line description was constructed and the desired options were
set, you can finally call \helpref{Parse}{wxcmdlineparserparse} method.
It returns $0$ if the command line was correct and was parsed, $-1$ if the help
option was specified (this is a separate case as, normally, the program will
command line parsing.
In the latter case, the appropriate error message and usage information are
-logged by wxCmdLineParser itself using the standard wxWindows logging functions.
+logged by wxCmdLineParser itself using the standard wxWidgets logging functions.
+
\membersection{Getting results}\label{wxcmdlineparsergettingresults}
methods.
For a simple switch, you will simply call
-\helpref{Found}{wxcmdlineparserfoundswitch} to determine if the switch was given
+\helpref{Found}{wxcmdlineparserfound} to determine if the switch was given
or not, for an option or a parameter, you will call a version of {\tt Found()}
which also returns the associated value in the provided variable. All
-{\tt Found()} functions return TRUE if the switch or option were found in the
-command line or FALSE if they were not specified.
+{\tt Found()} functions return true if the switch or option were found in the
+command line or false if they were not specified.
%%%%%%%%%%%%% Methods in alphabetic order %%%%%%%%%%%%%
\helponly{\insertatlevel{2}{
}}
-\membersection{wxCmdLineParser::wxCmdLineParser}\label{wxcmdlineparserwxcmdlineparserdef}
+
+\membersection{wxCmdLineParser::wxCmdLineParser}\label{wxcmdlineparserwxcmdlineparserctor}
\func{}{wxCmdLineParser}{\void}
Default constructor. You must use
-\helpref{SetCmdLine}{wxcmdlineparsersetcmdlineargc} or
-\helpref{SetCmdLinelater.}{wxcmdlineparsersetcmdlinestr} later.
-
-\membersection{wxCmdLineParser::wxCmdLineParser}\label{wxcmdlineparserwxcmdlineparserargc}
+\helpref{SetCmdLine}{wxcmdlineparsersetcmdline} later.
\func{}{wxCmdLineParser}{\param{int }{argc}, \param{char** }{argv}}
-Constructor specifies the command line to parse. This is the traditional
+\func{}{wxCmdLineParser}{\param{int }{argc}, \param{wchar\_t** }{argv}}
+
+Constructors which specify the command line to parse. This is the traditional
(Unix) command line format. The parameters {\it argc} and {\it argv} have the
same meaning as for {\tt main()} function.
-\membersection{wxCmdLineParser::wxCmdLineParser}\label{wxcmdlineparserwxcmdlineparserstr}
+The second overloaded constructor is only available in Unicode build. The
+first one is available in both ANSI and Unicode modes because under some
+platforms the command line arguments are passed as ASCII strings even to
+Unicode programs.
\func{}{wxCmdLineParser}{\param{const wxString\& }{cmdline}}
-Constructor specifies the command line to parse in Windows format. The parameter
+Constructor which specify the command line to parse in Windows format. The parameter
{\it cmdline} has the same meaning as the corresponding parameter of
{\tt WinMain()}.
-\membersection{wxCmdLineParser::wxCmdLineParser}\label{wxcmdlineparserwxcmdlineparserdesc}
-
\func{}{wxCmdLineParser}{\param{const wxCmdLineEntryDesc* }{desc}}
-Same as \helpref{wxCmdLineParser}{wxcmdlineparserwxcmdlineparserdef}, but also
-specifies the \helpref{command line description}{wxcmdlineparsersetdesc}.
-
-\membersection{wxCmdLineParser::wxCmdLineParser}\label{wxcmdlineparserwxcmdlineparserdescargc}
+Specifies the \helpref{command line description}{wxcmdlineparsersetdesc} but not the
+command line. You must use \helpref{SetCmdLine}{wxcmdlineparsersetcmdline} later.
\func{}{wxCmdLineParser}{\param{const wxCmdLineEntryDesc* }{desc}, \param{int }{argc}, \param{char** }{argv}}
-Same as \helpref{wxCmdLineParser}{wxcmdlineparserwxcmdlineparserargc}, but also
-specifies the \helpref{command line description}{wxcmdlineparsersetdesc}.
-
-\membersection{wxCmdLineParser::wxCmdLineParser}\label{wxcmdlineparserwxcmdlineparserdescstr}
+Specifies both the command line (in Unix format) and the
+\helpref{command line description}{wxcmdlineparsersetdesc}.
\func{}{wxCmdLineParser}{\param{const wxCmdLineEntryDesc* }{desc}, \param{const wxString\& }{cmdline}}
-Same as \helpref{wxCmdLineParser}{wxcmdlineparserwxcmdlineparserstr}, but also
-specifies the \helpref{command line description}{wxcmdlineparsersetdesc}.
+Specifies both the command line (in Windows format) and the
+\helpref{command line description}{wxcmdlineparsersetdesc}.
-\membersection{wxCmdLineParser::SetCmdLine}\label{wxcmdlineparsersetcmdlineargc}
+\membersection{wxCmdLineParser::ConvertStringToArgs}\label{wxcmdlineparserconvertstringtoargs}
-\func{void}{SetCmdLine}{\param{int }{argc}, \param{char** }{argv}}
+\func{static wxArrayString}{ConvertStringToArgs}{\param{const wxChar }{*cmdline}}
-Set command line to parse after using one of the constructors which don't do it.
+Breaks down the string containing the full command line in words. The words are
+separated by whitespace. The quotes can be used in the input string to quote
+the white space and the back slashes can be used to quote the quotes.
-\wxheading{See also}
-\helpref{wxCmdLineParser}{wxcmdlineparserwxcmdlineparserargc}
+\membersection{wxCmdLineParser::SetCmdLine}\label{wxcmdlineparsersetcmdline}
-\membersection{wxCmdLineParser::SetCmdLine}\label{wxcmdlineparsersetcmdlinestr}
+\func{void}{SetCmdLine}{\param{int }{argc}, \param{char** }{argv}}
+
+\func{void}{SetCmdLine}{\param{int }{argc}, \param{wchar\_t** }{argv}}
+
+Set command line to parse after using one of the constructors which don't do it.
+The second overload of this function is only available in Unicode build.
\func{void}{SetCmdLine}{\param{const wxString\& }{cmdline}}
Set command line to parse after using one of the constructors which don't do it.
-\wxheading{See also}
-\helpref{wxCmdLineParser}{wxcmdlineparserwxcmdlineparserstr}
\membersection{wxCmdLineParser::\destruct{wxCmdLineParser}}\label{wxcmdlineparserdtor}
{\bf NB:} destructor is not virtual, don't use this class polymorphically.
+
\membersection{wxCmdLineParser::SetSwitchChars}\label{wxcmdlineparsersetswitchchars}
\func{void}{SetSwitchChars}{\param{const wxString\& }{switchChars}}
{\it switchChars} contains all characters with which an option or switch may
start. Default is {\tt "-"} for Unix, {\tt "-/"} for Windows.
+
\membersection{wxCmdLineParser::EnableLongOptions}\label{wxcmdlineparserenablelongoptions}
-\func{void}{EnableLongOptions}{\param{bool }{enable = TRUE}}
+\func{void}{EnableLongOptions}{\param{bool }{enable = true}}
Enable or disable support for the long options.
\wxheading{See also}
-\helpref{Customization}{wxcmdlineparsercustomization}
+\helpref{Customization}{wxcmdlineparsercustomization} and \helpref{AreLongOptionsEnabled}{wxcmdlineparserarelongoptionsenabled}
+
\membersection{wxCmdLineParser::DisableLongOptions}\label{wxcmdlineparserdisablelongoptions}
\func{void}{DisableLongOptions}{\void}
-Ientical to \helpref{EnableLongOptions(FALSE)}{wxcmdlineparserenablelongoptions}.
+Identical to \helpref{EnableLongOptions(false)}{wxcmdlineparserenablelongoptions}.
+
+
+\membersection{wxCmdLineParser::AreLongOptionsEnabled}\label{wxcmdlineparserarelongoptionsenabled}
+
+\func{bool}{AreLongOptionsEnabled}{\void}
+
+Returns true if long options are enabled, otherwise false.
+
+\wxheading{See also}
+
+\helpref{EnableLongOptions}{wxcmdlineparserenablelongoptions}
+
\membersection{wxCmdLineParser::SetLogo}\label{wxcmdlineparsersetlogo}
{\it logo} is some extra text which will be shown by
\helpref{Usage}{wxcmdlineparserusage} method.
+
\membersection{wxCmdLineParser::SetDesc}\label{wxcmdlineparsersetdesc}
\func{void}{SetDesc}{\param{const wxCmdLineEntryDesc* }{desc}}
parser.SetDesc(cmdLineDesc);
\end{verbatim}
+
\membersection{wxCmdLineParser::AddSwitch}\label{wxcmdlineparseraddswitch}
\func{void}{AddSwitch}{\param{const wxString\& }{name}, \param{const wxString\& }{lng = wxEmptyString}, \param{const wxString\& }{desc = wxEmptyString}, \param{int }{flags = 0}}
is empty, which is default), description {\it desc} and flags {\it flags} to the
command line description.
+
\membersection{wxCmdLineParser::AddOption}\label{wxcmdlineparseraddoption}
\func{void}{AddOption}{\param{const wxString\& }{name}, \param{const wxString\& }{lng = wxEmptyString}, \param{const wxString\& }{desc = wxEmptyString}, \param{wxCmdLineParamType }{type = wxCMD\_LINE\_VAL\_STRING}, \param{int }{flags = 0}}
it is empty, which is default) taking a value of the given type (string by
default) to the command line description.
+
\membersection{wxCmdLineParser::AddParam}\label{wxcmdlineparseraddparam}
\func{void}{AddParam}{\param{const wxString\& }{desc = wxEmptyString}, \param{wxCmdLineParamType }{type = wxCMD\_LINE\_VAL\_STRING}, \param{int }{flags = 0}}
Add a parameter of the given {\it type} to the command line description.
+
\membersection{wxCmdLineParser::Parse}\label{wxcmdlineparserparse}
-\func{int}{Parse}{\void}
+\func{int}{Parse}{\param{bool }{giveUsage = {\tt true}}}
Parse the command line, return $0$ if ok, $-1$ if {\tt "-h"} or {\tt "--help"}
option was encountered and the help message was given or a positive value if a
-syntax error occured.
+syntax error occurred.
+
+\wxheading{Parameters}
+
+\docparam{giveUsage}{If {\tt true} (default), the usage message is given if a
+syntax error was encountered while parsing the command line or if help was
+requested. If {\tt false}, only error messages about possible syntax errors
+are given, use \helpref{Usage}{wxcmdlineparserusage} to show the usage message
+from the caller if needed.}
+
\membersection{wxCmdLineParser::Usage}\label{wxcmdlineparserusage}
\helpref{SetLogo}{wxcmdlineparsersetlogo}
-\membersection{wxCmdLineParser::Found}\label{wxcmdlineparserfoundswitch}
-\constfunc{bool}{Found}{\param{const wxString\& }{name}}
+\membersection{wxCmdLineParser::Found}\label{wxcmdlineparserfound}
-Returns TRUE if the given switch was found, FALSE otherwise.
+\constfunc{bool}{Found}{\param{const wxString\& }{name}}
-\membersection{wxCmdLineParser::Found}\label{wxcmdlineparserfoundstringoption}
+Returns \true if the given switch was found, false otherwise.
\constfunc{bool}{Found}{\param{const wxString\& }{name}, \param{wxString* }{value}}
-Returns TRUE if an option taking a string value was found and stores the
+Returns \true if an option taking a string value was found and stores the
value in the provided pointer (which should not be NULL).
-\membersection{wxCmdLineParser::Found}\label{wxcmdlineparserfoundintoption}
-
\constfunc{bool}{Found}{\param{const wxString\& }{name}, \param{long* }{value}}
-Returns TRUE if an option taking an integer value was found and stores
+Returns \true if an option taking an integer value was found and stores
the value in the provided pointer (which should not be NULL).
-\membersection{wxCmdLineParser::Found}\label{wxcmdlineparserfounddateoption}
-
\constfunc{bool}{Found}{\param{const wxString\& }{name}, \param{wxDateTime* }{value}}
-Returns TRUE if an option taking a date value was found and stores the
+Returns \true if an option taking a date value was found and stores the
value in the provided pointer (which should not be NULL).
+
\membersection{wxCmdLineParser::GetParamCount}\label{wxcmdlineparsergetparamcount}
\constfunc{size\_t}{GetParamCount}{\void}
Returns the number of parameters found. This function makes sense mostly if you
had used {\tt wxCMD\_LINE\_PARAM\_MULTIPLE} flag.
+
\membersection{wxCmdLineParser::GetParam}\label{wxcmdlineparsergetparam}
\constfunc{wxString}{GetParam}{\param{size\_t }{n = 0u}}
-Returns the value of Nth parameter (as string only for now).
+Returns the value of Nth parameter (as string only).
\wxheading{See also}
projects / wxWidgets.git / blobdiff