From 31c7ad7887a09c67932c31a06aea62588fed83db 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 12:00:11 +0100
Subject: [PATCH] Added user-parser rule for parsing single rule
---
libwccl/parser/Parser.cpp | 31 +++++++++++++++++++++++++++++++
libwccl/parser/Parser.h | 7 +++++++
2 files changed, 38 insertions(+)
diff --git a/libwccl/parser/Parser.cpp b/libwccl/parser/Parser.cpp
index fe0be08..1bfc889 100644
--- a/libwccl/parser/Parser.cpp
+++ b/libwccl/parser/Parser.cpp
@@ -323,4 +323,35 @@ boost::shared_ptr<RuleSequence> Parser::parseRuleSequence(
// ----------------------------------------------------------------------------
+/**
+ * @desc Parse single rule contained in a std::string. Converts the string
+ * to a stream and calls parseSingleRule with it
+ * @arg str rule
+ * @return the parsed rule via a shared pointer
+ */
+boost::shared_ptr<Rule> Parser::parseSingleRule(
+ const std::string& str) const
+{
+ std::stringstream ss (std::stringstream::in | std::stringstream::out);
+ ss << str;
+
+ return this->parseSingleRule(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<Rule> Parser::parseSingleRule(
+ std::istream& istr) const
+{
+ ANTLRLexer lexer(istr);
+ ANTLRParser parser(lexer);
+ return parser.parse_single_rule(tagset_);
+}
+
+// ----------------------------------------------------------------------------
+
} // end Wccl ns
diff --git a/libwccl/parser/Parser.h b/libwccl/parser/Parser.h
index 7845a7d..9f6e3f6 100644
--- a/libwccl/parser/Parser.h
+++ b/libwccl/parser/Parser.h
@@ -71,6 +71,13 @@ public:
boost::shared_ptr<RuleSequence>
parseRuleSequence(std::istream&) const;
+ // ---------------------------------------------------------------------------
+ // Parsing single rule from input string
+ boost::shared_ptr<Rule>
+ parseSingleRule(const std::string&) const;
+ boost::shared_ptr<Rule>
+ parseSingleRule(std::istream&) const;
+
// ---------------------------------------------------------------------------
const Corpus2::Tagset& tagset() const {
return tagset_;
--
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