util: Adding regex support.
Change-Id: I33d84f4ae9076ff5a9db5232f2955f4be0ed820c
diff --git a/src/util/regex/regex-component-matcher.cpp b/src/util/regex/regex-component-matcher.cpp
new file mode 100644
index 0000000..e3bbe0e
--- /dev/null
+++ b/src/util/regex/regex-component-matcher.cpp
@@ -0,0 +1,87 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/**
+ * Copyright (C) 2013 Regents of the University of California.
+ * @author: Yingdi Yu <yingdi@cs.ucla.edu>
+ * See COPYING for copyright and distribution information.
+ */
+
+#include "regex-component-matcher.hpp"
+
+#include "../logging.hpp"
+
+INIT_LOGGER ("RegexComponentMatcher");
+
+using namespace std;
+
+namespace ndn
+{
+
+RegexComponentMatcher::RegexComponentMatcher (const string & expr,
+ ptr_lib::shared_ptr<RegexBackrefManager> backRefManager,
+ bool exact)
+ : RegexMatcher (expr, EXPR_COMPONENT, backRefManager),
+ m_exact(exact)
+{
+ // _LOG_TRACE ("Enter RegexComponentMatcher Constructor: ");
+ compile();
+ // _LOG_TRACE ("Exit RegexComponentMatcher Constructor: ");
+}
+
+void
+RegexComponentMatcher::compile ()
+{
+ // _LOG_TRACE ("Enter RegexComponentMatcher::compile");
+
+ m_componentRegex = boost::regex (m_expr);
+
+ m_pseudoMatcher.clear();
+ m_pseudoMatcher.push_back(ptr_lib::make_shared<RegexPseudoMatcher>());
+
+ for (int i = 1; i < m_componentRegex.mark_count(); i++)
+ {
+ ptr_lib::shared_ptr<RegexPseudoMatcher> pMatcher = ptr_lib::make_shared<RegexPseudoMatcher>();
+ m_pseudoMatcher.push_back(pMatcher);
+ m_backrefManager->pushRef(ptr_lib::static_pointer_cast<RegexMatcher>(pMatcher));
+ }
+
+
+ // _LOG_TRACE ("Exit RegexComponentMatcher::compile");
+}
+
+bool
+RegexComponentMatcher::match (const Name & name, const int & offset, const int & len)
+{
+ // _LOG_TRACE ("Enter RegexComponentMatcher::match ");
+
+ m_matchResult.clear();
+
+ if("" == m_expr)
+ {
+ m_matchResult.push_back(name.get(offset));
+ return true;
+ }
+
+ if(true == m_exact)
+ {
+ boost::smatch subResult;
+ string targetStr = name.get(offset).toEscapedString();
+ if(boost::regex_match(targetStr, subResult, m_componentRegex))
+ {
+ for (int i = 1; i < m_componentRegex.mark_count(); i++)
+ {
+ m_pseudoMatcher[i]->resetMatchResult();
+ m_pseudoMatcher[i]->setMatchResult(subResult[i]);
+ }
+ m_matchResult.push_back(name.get(offset));
+ return true;
+ }
+ }
+ else
+ {
+ throw RegexMatcher::Error("Non-exact component search is not supported yet!");
+ }
+
+ return false;
+}
+
+} //ndn