From 679dd99a764c35b5c11a9021cdffacf05f68a8ff Mon Sep 17 00:00:00 2001
From: Adam Wardynski <award@.(B-4.4.46a)>
Date: Fri, 18 Mar 2011 17:44:11 +0100
Subject: [PATCH] ConjConditions - wrap vector of match condition into one
conjucating condition.
---
libwccl/CMakeLists.txt | 1 +
.../ops/match/conditions/conjconditions.cpp | 58 +++++++++++++++++++
libwccl/ops/match/conditions/conjconditions.h | 49 ++++++++++++++++
3 files changed, 108 insertions(+)
create mode 100644 libwccl/ops/match/conditions/conjconditions.cpp
create mode 100644 libwccl/ops/match/conditions/conjconditions.h
diff --git a/libwccl/CMakeLists.txt b/libwccl/CMakeLists.txt
index c3e53ec..2b63e4b 100644
--- a/libwccl/CMakeLists.txt
+++ b/libwccl/CMakeLists.txt
@@ -54,6 +54,7 @@ SET(libwccl_STAT_SRC
ops/functions/tset/catfilter.cpp
ops/functions/tset/getsymbols.cpp
ops/functions/tset/getsymbolsinrange.cpp
+ ops/match/conditions/conjconditions.cpp
ops/match/conditions/tokencondition.cpp
ops/match/applyoperator.cpp
ops/match/matchoperator.cpp
diff --git a/libwccl/ops/match/conditions/conjconditions.cpp b/libwccl/ops/match/conditions/conjconditions.cpp
new file mode 100644
index 0000000..7dd80eb
--- /dev/null
+++ b/libwccl/ops/match/conditions/conjconditions.cpp
@@ -0,0 +1,58 @@
+#include <libwccl/ops/match/conditions/conjconditions.h>
+#include <libwccl/values/matchvector.h>
+#include <libpwrutils/foreach.h>
+#include <sstream>
+
+namespace Wccl {
+
+ConjConditions::ConjConditions(const std::vector< boost::shared_ptr<const MatchCondition> >& conditions)
+ : _conditions(conditions)
+{
+ BOOST_ASSERT(_conditions.size() > 0);
+}
+
+MatchResult ConjConditions::apply(boost::shared_ptr<Position> iter_pos, const FunExecContext& context) const
+{
+ boost::shared_ptr<MatchVector> matches(new MatchVector());
+ int orig_iter_pos = iter_pos->get_value();
+
+ foreach (const boost::shared_ptr<const MatchCondition>& cond, _conditions) {
+ MatchResult res = cond->apply(iter_pos, context);
+ if(res.matched()) {
+ matches->append(res.get_match());
+ } else {
+ iter_pos->set_value(orig_iter_pos);
+ return MatchResult();
+ }
+ }
+ return MatchResult(matches);
+}
+
+std::string ConjConditions::to_string(const Corpus2::Tagset& tagset) const
+{
+ std::ostringstream ostream;
+ ostream << "(";
+ for(size_t i = 0; i < _conditions.size(); ++i) {
+ if (i != 0) {
+ ostream << ", ";
+ }
+ ostream << _conditions[i]->to_string(tagset);
+ }
+ ostream << ")";
+ return ostream.str();
+}
+
+std::ostream& ConjConditions::write_to(std::ostream &ostream) const
+{
+ ostream << "(";
+ for(size_t i = 0; i < _conditions.size(); ++i) {
+ if (i != 0) {
+ ostream << ", ";
+ }
+ ostream << *_conditions[i];
+ }
+ ostream << ")";
+ return ostream;
+}
+
+} /* end ns Wccl */
diff --git a/libwccl/ops/match/conditions/conjconditions.h b/libwccl/ops/match/conditions/conjconditions.h
new file mode 100644
index 0000000..38d0a14
--- /dev/null
+++ b/libwccl/ops/match/conditions/conjconditions.h
@@ -0,0 +1,49 @@
+#ifndef LIBWCCL_OPS_MATCH_CONDITIONS_CONJCONDITIONS_H
+#define LIBWCCL_OPS_MATCH_CONDITIONS_CONJCONDITIONS_H
+
+#include <libwccl/ops/match/matchcondition.h>
+
+namespace Wccl {
+
+/**
+ * Class that wraps a vector of match conditions to act as
+ * single condition that matches if all inner conditions match.
+ */
+class ConjConditions : public MatchCondition
+{
+public:
+ ConjConditions(const std::vector< boost::shared_ptr<const MatchCondition> >& conditions);
+
+ /**
+ * @returns Name of the condition.
+ */
+ std::string name() const {
+ return "and"; // string repr actually doesn't include this
+ }
+ /**
+ * Applies the condition to the given execution context.
+ * If match is found, the current iter Position "$_" is increased
+ * by one (the size of token match, which is always one).
+ */
+ MatchResult apply(boost::shared_ptr<Position> iter_pos, const FunExecContext& context) const;
+
+ /**
+ * @returns String representation of the MatchCondition
+ */
+ std::string to_string(const Corpus2::Tagset& tagset) const;
+
+protected:
+ /**
+ * Writes string representation of the MatchCondition to
+ * an output stream.
+ * @returns Stream written to.
+ * @note May be incomplete and/or containt internal info.
+ */
+ std::ostream& write_to(std::ostream& ostream) const;
+private:
+ const std::vector<boost::shared_ptr<const MatchCondition> > _conditions;
+};
+
+} /* end ns Wccl */
+
+#endif // LIBWCCL_OPS_MATCH_CONDITIONS_CONJCONDITIONS_H
--
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