summaryrefslogtreecommitdiffstats
path: root/lib/antlr/src/LLkParser.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/antlr/src/LLkParser.cpp')
-rw-r--r--lib/antlr/src/LLkParser.cpp85
1 files changed, 85 insertions, 0 deletions
diff --git a/lib/antlr/src/LLkParser.cpp b/lib/antlr/src/LLkParser.cpp
new file mode 100644
index 00000000..ab0d672a
--- /dev/null
+++ b/lib/antlr/src/LLkParser.cpp
@@ -0,0 +1,85 @@
+/* ANTLR Translator Generator
+ * Project led by Terence Parr at http://www.jGuru.com
+ * Software rights: http://www.antlr.org/license.html
+ *
+ * $Id$
+ */
+
+#include "antlr/LLkParser.hpp"
+#include <iostream>
+
+#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
+namespace antlr {
+#endif
+
+ANTLR_USING_NAMESPACE(std)
+
+/**An LL(k) parser.
+ *
+ * @see antlr.Token
+ * @see antlr.TokenBuffer
+ * @see antlr.LL1Parser
+ */
+
+// LLkParser(int k_);
+
+LLkParser::LLkParser(const ParserSharedInputState& state, int k_)
+: Parser(state), k(k_)
+{
+}
+
+LLkParser::LLkParser(TokenBuffer& tokenBuf, int k_)
+: Parser(tokenBuf), k(k_)
+{
+}
+
+LLkParser::LLkParser(TokenStream& lexer, int k_)
+: Parser(new TokenBuffer(lexer)), k(k_)
+{
+}
+
+void LLkParser::trace(const char* ee, const char* rname)
+{
+ traceIndent();
+
+ cout << ee << rname << ((inputState->guessing>0)?"; [guessing]":"; ");
+
+ for (int i = 1; i <= k; i++)
+ {
+ if (i != 1) {
+ cout << ", ";
+ }
+ cout << "LA(" << i << ")==";
+
+ string temp;
+
+ try {
+ temp = LT(i)->getText().c_str();
+ }
+ catch( ANTLRException& ae )
+ {
+ temp = "[error: ";
+ temp += ae.toString();
+ temp += ']';
+ }
+ cout << temp;
+ }
+
+ cout << endl;
+}
+
+void LLkParser::traceIn(const char* rname)
+{
+ traceDepth++;
+ trace("> ",rname);
+}
+
+void LLkParser::traceOut(const char* rname)
+{
+ trace("< ",rname);
+ traceDepth--;
+}
+
+#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
+}
+#endif