update release date to actual daterelease-qpdf-2.0

git-svn-id: svn+q:///qpdf/trunk@599 71b93d88-0707-0410-a8cf-f5a4172ac649

1 files changed, 84 insertions, 0 deletions

diff --git a/libqpdf/QPDF_Dictionary.cc b/libqpdf/QPDF_Dictionary.cc
new file mode 100644
index 00000000..654df688
--- /dev/null
+++ b/libqpdf/QPDF_Dictionary.cc
@@ -0,0 +1,84 @@
+
+#include <qpdf/QPDF_Dictionary.hh>
+
+#include <qpdf/QPDF_Null.hh>
+#include <qpdf/QPDF_Name.hh>
+
+QPDF_Dictionary::QPDF_Dictionary(
+    std::map<std::string, QPDFObjectHandle> const& items) :
+    items(items)
+{
+}
+
+QPDF_Dictionary::~QPDF_Dictionary()
+{
+}
+
+std::string
+QPDF_Dictionary::unparse()
+{
+    std::string result = "<< ";
+    for (std::map<std::string, QPDFObjectHandle>::iterator iter =
+	     this->items.begin();
+	 iter != this->items.end(); ++iter)
+    {
+	result += QPDF_Name::normalizeName((*iter).first) +
+	    " " + (*iter).second.unparse() + " ";
+    }
+    result += ">>";
+    return result;
+}
+
+bool
+QPDF_Dictionary::hasKey(std::string const& key)
+{
+    return ((this->items.count(key) > 0) &&
+	    (! this->items[key].isNull()));
+}
+
+QPDFObjectHandle
+QPDF_Dictionary::getKey(std::string const& key)
+{
+    // PDF spec says fetching a non-existent key from a dictionary
+    // returns the null object.
+    if (this->items.count(key))
+    {
+	// May be a null object
+	return (*(this->items.find(key))).second;
+    }
+    else
+    {
+	return QPDFObjectHandle::newNull();
+    }
+}
+
+std::set<std::string>
+QPDF_Dictionary::getKeys()
+{
+    std::set<std::string> result;
+    for (std::map<std::string, QPDFObjectHandle>::const_iterator iter =
+	     this->items.begin();
+	 iter != this->items.end(); ++iter)
+    {
+	if (hasKey((*iter).first))
+	{
+	    result.insert((*iter).first);
+	}
+    }
+    return result;
+}
+
+void
+QPDF_Dictionary::replaceKey(std::string const& key,
+			    QPDFObjectHandle const& value)
+{
+    // add or replace value
+    this->items[key] = value;
+}
+
+void
+QPDF_Dictionary::removeKey(std::string const& key)
+{
+    // no-op if key does not exist
+    this->items.erase(key);
+}