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Add support for negatable command line switches.

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Add wxCMD_LINE_SWITCH_NEGATABLE which allows to use a dash after a command
line switch to inverse its meaning (i.e. use "/X-" form). Also add new
wxCmdLineParser::FoundSwitch() allowing to check for whether the switch was
specified in normal or negated form.

Closes #11643.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@66253 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2010-11-24 00:42:53 +00:00
parent 94803e4ec8
commit a6bf0c9533
4 changed files with 97 additions and 9 deletions
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17
include/wx/cmdline.h
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@@ -42,7 +42,8 @@ enum wxCmdLineEntryFlags
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_NEEDS_SEPARATOR = 0x10, // must have sep before the value
wxCMD_LINE_SWITCH_NEGATABLE = 0x20 // this switch can be negated (e.g. /S-)
};
// an option value or parameter may be a string (the most common case), a
@@ -66,6 +67,14 @@ enum wxCmdLineEntryType
wxCMD_LINE_NONE // to terminate the list
};
// Possible return values of wxCmdLineParser::FoundSwitch()
enum wxCmdLineSwitchState
{
wxCMD_SWITCH_OFF = -1, // Found but turned off/negated.
wxCMD_SWITCH_NOT_FOUND, // Not found at all.
wxCMD_SWITCH_ON // Found in normal state.
};
// ----------------------------------------------------------------------------
// wxCmdLineEntryDesc is a description of one command line
// switch/option/parameter
@@ -212,6 +221,12 @@ public:
// returns true if the given switch was found
bool Found(const wxString& name) const;
// Returns wxCMD_SWITCH_NOT_FOUND if the switch was not found at all,
// wxCMD_SWITCH_ON if it was found in normal state and wxCMD_SWITCH_OFF if
// it was found but negated (i.e. followed by "-", this can only happen for
// the switches with wxCMD_LINE_SWITCH_NEGATABLE flag).
wxCmdLineSwitchState FoundSwitch(const wxString& name) const;
// returns true if an option taking a string value was found and stores the
// value in the provided pointer
bool Found(const wxString& name, wxString *value) const;