1 files changed, 87 insertions, 0 deletions
diff --git a/src/CharacterSet.cpp b/src/CharacterSet.cpp
new file mode 100644
index 0000000..3869ec5
--- /dev/null
+++ b/src/CharacterSet.cpp
@@ -0,0 +1,87 @@
+/**
+ * @file IsCharacterInSet.cpp
+ *
+ * This module contains the implementation of the
+ * Uri::IsCharacterInSet function and the CharacterSet class.
+ *
+ * © 2018 by Richard Walters
+ */
+
+#include "CharacterSet.hpp"
+
+#include <set>
+
+namespace Uri {
+
+    /**
+     * This contains the private properties of the CharacterSet class.
+     */
+    struct CharacterSet::Impl {
+        /**
+         * This holds the characters in the set.
+         */
+        std::set< char > charactersInSet;
+    };
+
+    CharacterSet::~CharacterSet() = default;
+    CharacterSet::CharacterSet(const CharacterSet& other)
+        : impl_(new Impl(*other.impl_))
+    {
+    }
+    CharacterSet::CharacterSet(CharacterSet&& other) = default;
+    CharacterSet& CharacterSet::operator=(const CharacterSet& other) {
+        if (this != &other) {
+            *impl_ = *other.impl_;
+        }
+        return *this;
+    }
+    CharacterSet& CharacterSet::operator=(CharacterSet&& other) = default;
+
+    CharacterSet::CharacterSet()
+        : impl_(new Impl)
+    {
+    }
+
+    CharacterSet::CharacterSet(char c)
+        : impl_(new Impl)
+    {
+        (void)impl_->charactersInSet.insert(c);
+    }
+
+    CharacterSet::CharacterSet(char first, char last)
+        : impl_(new Impl)
+    {
+        for (char c = first; c < last + 1; ++c) {
+            (void)impl_->charactersInSet.insert(c);
+        }
+    }
+
+    CharacterSet::CharacterSet(
+        std::initializer_list< const CharacterSet > characterSets
+    )
+        : impl_(new Impl)
+    {
+        for (
+            auto characterSet = characterSets.begin();
+            characterSet != characterSets.end();
+            ++characterSet
+        ) {
+            impl_->charactersInSet.insert(
+                characterSet->impl_->charactersInSet.begin(),
+                characterSet->impl_->charactersInSet.end()
+            );
+        }
+    }
+
+    bool CharacterSet::Contains(char c) const {
+        return impl_->charactersInSet.find(c) != impl_->charactersInSet.end();
+    }
+
+    bool IsCharacterInSet(
+        char c,
+        const CharacterSet& characterSet
+    ) {
+        return characterSet.Contains(c);
+    }
+
+}