Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_codesigning / antlr2 / src / Parser.cpp

diff --git a/Security/libsecurity_codesigning/antlr2/src/Parser.cpp b/Security/libsecurity_codesigning/antlr2/src/Parser.cpp
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+/* ANTLR Translator Generator
+ * Project led by Terence Parr at http://www.jGuru.com
+ * Software rights: http://www.antlr.org/license.html
+ *
+ * $Id: //depot/code/org.antlr/release/antlr-2.7.7/lib/cpp/src/Parser.cpp#2 $
+ */
+
+#include "antlr/Parser.hpp"
+
+#include <stdio.h>
+
+#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
+namespace antlr {
+#endif
+
+/** A generic ANTLR parser (LL(k) for k>=1) containing a bunch of
+ * utility routines useful at any lookahead depth.  We distinguish between
+ * the LL(1) and LL(k) parsers because of efficiency.  This may not be
+ * necessary in the near future.
+ *
+ * Each parser object contains the state of the parse including a lookahead
+ * cache (the form of which is determined by the subclass), whether or
+ * not the parser is in guess mode, where tokens come from, etc...
+ *
+ * <p>
+ * During <b>guess</b> mode, the current lookahead token(s) and token type(s)
+ * cache must be saved because the token stream may not have been informed
+ * to save the token (via <tt>mark</tt>) before the <tt>try</tt> block.
+ * Guessing is started by:
+ * <ol>
+ * <li>saving the lookahead cache.
+ * <li>marking the current position in the TokenBuffer.
+ * <li>increasing the guessing level.
+ * </ol>
+ *
+ * After guessing, the parser state is restored by:
+ * <ol>
+ * <li>restoring the lookahead cache.
+ * <li>rewinding the TokenBuffer.
+ * <li>decreasing the guessing level.
+ * </ol>
+ *
+ * @see antlr.Token
+ * @see antlr.TokenBuffer
+ * @see antlr.TokenStream
+ * @see antlr.LL1Parser
+ * @see antlr.LLkParser
+ */
+
+bool DEBUG_PARSER = false;
+
+/** Parser error-reporting function can be overridden in subclass */
+void Parser::reportError(const RecognitionException& ex)
+{
+       fprintf(stderr, "%s", (ex.toString() + "\n").c_str());
+}
+
+/** Parser error-reporting function can be overridden in subclass */
+void Parser::reportError(const ANTLR_USE_NAMESPACE(std)string& s)
+{
+       if ( getFilename()=="" )
+               fprintf(stderr, "%s", ("error: " + s + "\n").c_str());
+       else
+               fprintf(stderr, "%s", (getFilename() + ": error: " + s + "\n").c_str());
+}
+
+/** Parser warning-reporting function can be overridden in subclass */
+void Parser::reportWarning(const ANTLR_USE_NAMESPACE(std)string& s)
+{
+    if ( getFilename()=="" )
+        fprintf(stderr, "%s", ("warning: " + s + "\n").c_str());
+    else
+        fprintf(stderr, "%s", (getFilename() + ": warning: " + s + "\n").c_str());
+}
+
+/** Set or change the input token buffer */
+//     void setTokenBuffer(TokenBuffer<Token>* t);
+
+void Parser::traceIndent()
+{
+       for( int i = 0; i < traceDepth; i++ )
+               printf(" ");
+}
+
+void Parser::traceIn(const char* rname)
+{
+       traceDepth++;
+
+       for( int i = 0; i < traceDepth; i++ )
+               printf(" ");;
+
+       printf("%s",((ANTLR_USE_NAMESPACE(std)string)"> " + rname
+               + "; LA(1)==" + LT(1)->getText()
+               +       ((inputState->guessing>0)?" [guessing]":"")
+               + "\n").c_str());
+}
+
+void Parser::traceOut(const char* rname)
+{
+       for( int i = 0; i < traceDepth; i++ )
+        printf(" ");;
+
+       printf("%s",((ANTLR_USE_NAMESPACE(std)string)"< " + rname
+               + "; LA(1)==" + LT(1)->getText()
+               +       ((inputState->guessing>0)?" [guessing]":"")
+               + "\n").c_str());
+
+       traceDepth--;
+}
+
+#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
+}
+#endif