\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
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
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
+the constructor (\helpref{without\ command\ line}{wxcmdlineparserwxcmdlineparser} or
+\helpref{together\ with\ it}{wxcmdlineparserwxcmdlineparserdescargc}) or
constructed later using either \helpref{SetDesc}{wxcmdlineparsersetdesc} or
combination of \helpref{AddSwitch}{wxcmdlineparseraddswitch},
\helpref{AddOption}{wxcmdlineparseraddoption} and
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{wxcmdlineparserwxcmdlineparser}
\func{}{wxCmdLineParser}{\void}
Default constructor. You must use
-\helpref{SetCmdLine}{wxcmdlineparsersetcmdlineargc} or
-\helpref{SetCmdLinelater.}{wxcmdlineparsersetcmdlinestr} later.
+\helpref{SetCmdLine}{wxcmdlineparsersetcmdline} later.
-\membersection{wxCmdLineParser::wxCmdLineParser}\label{wxcmdlineparserwxcmdlineparserargc}
+\membersection{wxCmdLineParser::wxCmdLineParser}\label{wxcmdlineparserwxcmdlineparserdescargc}
\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