From 70869f24a873de9912416b2f3a5a0f350039c2ab Mon Sep 17 00:00:00 2001
From: Martchus <martchus@gmx.net>
Date: Sat, 26 Nov 2016 00:11:48 +0100
Subject: [PATCH] Add method to reset arguments recursively

---
 application/argumentparser.cpp | 23 +++++++++++++++++++++++
 application/argumentparser.h   |  2 ++
 2 files changed, 25 insertions(+)

diff --git a/application/argumentparser.cpp b/application/argumentparser.cpp
index 319ec13..7dec1da 100644
--- a/application/argumentparser.cpp
+++ b/application/argumentparser.cpp
@@ -282,6 +282,18 @@ Argument *Argument::wouldConflictWithArgument() const
     return nullptr;
 }
 
+/*!
+ * \brief Resets this argument and all sub arguments recursively.
+ * \sa Argument::reset()
+ */
+void Argument::resetRecursively()
+{
+    for(Argument *arg : m_subArgs) {
+        arg->resetRecursively();
+    }
+    reset();
+}
+
 /*!
  * \class ApplicationUtilities::ArgumentParser
  * \brief The ArgumentParser class provides a means for handling command line arguments.
@@ -463,6 +475,17 @@ void ArgumentParser::readArgs(int argc, const char * const *argv)
     }
 }
 
+/*!
+ * \brief Resets all Argument instances assigned as mainArguments() and sub arguments.
+ * \sa Argument::reset()
+ */
+void ArgumentParser::resetArgs()
+{
+    for(Argument *arg : m_mainArgs) {
+        arg->resetRecursively();
+    }
+}
+
 /*!
  * \brief Checks whether at least one uncombinable main argument is present.
  */
diff --git a/application/argumentparser.h b/application/argumentparser.h
index c07f456..62a166e 100644
--- a/application/argumentparser.h
+++ b/application/argumentparser.h
@@ -185,6 +185,7 @@ public:
     Argument *conflictsWithArgument() const;
     Argument *wouldConflictWithArgument() const;
     void reset();
+    void resetRecursively();
 
 private:
     const char *m_name;
@@ -220,6 +221,7 @@ public:
     void printHelp(std::ostream &os) const;
     void parseArgs(int argc, const char *const *argv);
     void readArgs(int argc, const char *const *argv);
+    void resetArgs();
     unsigned int actualArgumentCount() const;
     const char *executable() const;
     UnknownArgumentBehavior unknownArgumentBehavior() const;