wxCmdLineEntryDesc::flags field is a combination of these bit masks.
Notice that by default (i.e. if flags are just 0), options are optional
- (sic) and each call to wxCmdLineEntryDesc::AddParam() allows one more
+ (sic) and each call to wxCmdLineParser::AddParam() allows one more
parameter - this may be changed by giving non-default flags to it, i.e. use
- wxCMD_LINE_OPTION_MANDATORY to require that the option is given and
- wxCMD_LINE_PARAM_OPTIONAL to make a parameter optional. Also,
- wxCMD_LINE_PARAM_MULTIPLE may be specified if the programs accepts a
+ @c wxCMD_LINE_OPTION_MANDATORY to require that the option is given and
+ @c wxCMD_LINE_PARAM_OPTIONAL to make a parameter optional.
+
+ Also, @c wxCMD_LINE_PARAM_MULTIPLE may be specified if the programs accepts a
variable number of parameters - but it only can be given for the last
parameter in the command line description. If you use this flag, you will
probably need to use wxCmdLineEntryDesc::GetParamCount() to retrieve the
number of parameters effectively specified after calling
wxCmdLineEntryDesc::Parse().
- wxCMD_LINE_NEEDS_SEPARATOR can be specified to require a separator (either
+ @c wxCMD_LINE_NEEDS_SEPARATOR can be specified to require a separator (either
a colon, an equal sign or white space) between the option name and its
value. By default, no separator is required.
*/
-enum
+enum wxCmdLineEntryFlags
{
wxCMD_LINE_OPTION_MANDATORY = 0x01, ///< This option must be given.
wxCMD_LINE_PARAM_OPTIONAL = 0x02, ///< The parameter may be omitted.
};
/**
- The possible values of wxCmdLineEntryDesc::type which specifies the type of
+ The possible values of wxCmdLineEntryDesc::type which specify the type of
the value accepted by an option.
*/
enum wxCmdLineParamType
*/
enum wxCmdLineEntryType
{
+ /// A boolean argument of the program; e.g. @c -v to enable verbose mode.
wxCMD_LINE_SWITCH,
+
+ /// An argument with an associated value; e.g. @c "-o filename" to specify
+ /// an optional output filename.
wxCMD_LINE_OPTION,
+
+ /// A parameter: a required program argument.
wxCMD_LINE_PARAM,
+
+ /// Additional usage text. See wxCmdLineParser::AddUsageText.
wxCMD_LINE_USAGE_TEXT,
+
wxCMD_LINE_NONE ///< Use this to terminate the list.
};
};
/**
- The structure wxCmdLineEntryDesc is used to describe the one command line
+ The structure wxCmdLineEntryDesc is used to describe a command line
switch, option or parameter. An array of such structures should be passed
to wxCmdLineParser::SetDesc().
- Also, the meanings of parameters of the wxCmdLineParser::AddXXX() functions
+ Note that the meanings of parameters of the wxCmdLineParser::AddXXX() functions
are the same as of the corresponding fields in this structure.
*/
struct wxCmdLineEntryDesc
{
+ /**
+ The kind of this program argument.
+ See ::wxCmdLineEntryType for more info.
+ */
wxCmdLineEntryType kind;
/**
- This is the usual, short, name of the switch or the option.
+ The usual, short, name of the switch or the option.
+
+ It may contain only letters, digits and the underscores.
+ This field is unused if <tt>kind == wxCMD_LINE_PARAM</tt>.
*/
const char *shortName;
/**
- @c 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 long name for this program argument (may be empty if the option
+ has no long name).
+
+ It may contain only letters, digits and the underscores.
+ This field is unused if <tt>kind == wxCMD_LINE_PARAM</tt>.
*/
const char *longName;
/**
- This description is used by the wxCmdLineEntryDesc::Usage() method to
+ This description is used by the wxCmdLineParser::Usage() method to
construct a help message explaining the syntax of the program.
*/
const char *description;
+ /**
+ The type associated with this option (ignored if <tt>kind != wxCMD_LINE_OPTION</tt>).
+ See ::wxCmdLineParamType for more info.
+ */
wxCmdLineParamType type;
+
+ /**
+ A combination of one or more ::wxCmdLineEntryFlags enum values.
+ */
int flags;
};
In the documentation below the following terminology is used:
- - @b switch: This is a boolean option which can be given or not, but which
- doesn't have any value. We use the word switch to distinguish
+ - @b switch: a boolean option which can be given or not, but which doesn't have
+ any value. We use the word @e switch to distinguish
such boolean options from more generic options like those
described below. For example, @c "-v" might be a switch
meaning "enable verbose mode".
- - @b option: Option for us here is something which comes with a value 0
- unlike a switch. For example, @c -o: @c filename might be an
+ - @b option: a switch with a value associated to it.
+ For example, @c "-o filename" might be an
option for specifying the name of the output file.
- - @b parameter: This is a required program argument.
- - @b text: This is a text which can be shown in usage information.
+ - @b parameter: a required program argument.
@section cmdlineparser_construction Construction
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