From 5862c13410ef923abc31273127a78720ae662744 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20K=C4=99dzia?= <pawel.kedzia@pwr.wroc.pl>
Date: Fri, 11 Feb 2011 11:57:32 +0100
Subject: [PATCH] Added user-parser rule for parsing rule sequence
---
libwccl/parser/Parser.cpp | 31 +++++++++++++++++++++++++++++++
libwccl/parser/Parser.h | 10 ++++++++++
2 files changed, 41 insertions(+)
diff --git a/libwccl/parser/Parser.cpp b/libwccl/parser/Parser.cpp
index 41914ca..fe0be08 100644
--- a/libwccl/parser/Parser.cpp
+++ b/libwccl/parser/Parser.cpp
@@ -292,4 +292,35 @@ boost::shared_ptr<FunctionalOperator> Parser::parseAnyOperator(
// ----------------------------------------------------------------------------
+/**
+ * @desc Parse rule sequence contained in a std::string. Converts the string
+ * to a stream and calls parseRuleSequence with it
+ * @arg str rules string
+ * @return the parsed rule sequence via a shared pointer
+ */
+boost::shared_ptr<RuleSequence> Parser::parseRuleSequence(
+ const std::string& str) const
+{
+ std::stringstream ss (std::stringstream::in | std::stringstream::out);
+ ss << str;
+
+ return this->parseRuleSequence(ss);
+}
+
+/**
+ * @desc Parse a sequence rules. Runs parse_rule_sequence rule in the parser
+ * grammar.
+ * @arg istr input stream with writed rules
+ * @return the parsed rule sequence via a shared pointer
+ */
+boost::shared_ptr<RuleSequence> Parser::parseRuleSequence(
+ std::istream& istr) const
+{
+ ANTLRLexer lexer(istr);
+ ANTLRParser parser(lexer);
+ return parser.parse_rule_sequence(tagset_);
+}
+
+// ----------------------------------------------------------------------------
+
} // end Wccl ns
diff --git a/libwccl/parser/Parser.h b/libwccl/parser/Parser.h
index b418929..7845a7d 100644
--- a/libwccl/parser/Parser.h
+++ b/libwccl/parser/Parser.h
@@ -14,6 +14,9 @@
#include <libwccl/values/strset.h>
#include <libwccl/ops/operator.h>
+// rules
+#include <libwccl/ops/rulesequence.h>
+
// exceptions
#include <libwccl/parser/ParserException.h>
@@ -60,8 +63,15 @@ public:
parseAnyOperator(const std::string&) const;
boost::shared_ptr<FunctionalOperator>
parseAnyOperator(std::istream&) const;
+
// ---------------------------------------------------------------------------
+ // Parsing rule sequence from input string
+ boost::shared_ptr<RuleSequence>
+ parseRuleSequence(const std::string&) const;
+ boost::shared_ptr<RuleSequence>
+ parseRuleSequence(std::istream&) const;
+ // ---------------------------------------------------------------------------
const Corpus2::Tagset& tagset() const {
return tagset_;
}
--
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