X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Finput_lexer.h;h=a7c8c06fffb35d0e8e3d4989ab6d58f98d004934;hp=575c836c75c9bca76adbcccbf38446e0a3084ce9;hb=bd2d7351b89743eb68ce7d3bfa7ab62c331f9522;hpb=956a3ad3779759028bfd742456ed9eafc3e85063

diff --git a/ginac/input_lexer.h b/ginac/input_lexer.h
index 575c836c..a7c8c06f 100644
--- a/ginac/input_lexer.h
+++ b/ginac/input_lexer.h
@@ -24,8 +24,10 @@
 #ifndef __GINAC_INPUT_LEXER_H__
 #define __GINAC_INPUT_LEXER_H__
 
+extern "C" {
 #include <stdio.h>
-
+}
+    
 #include "config.h"
 
 // yacc stack type
@@ -47,20 +49,23 @@ namespace GiNaC {
 
 class ex;
 
-/** Set the input string to be parsed by yyparse(). */
+/** Set the input string to be parsed by ginac_yyparse() (used internally). */
 extern void set_lexer_string(const string &s);
 
-/** Set the list of predefined symbols for the lexer (used internally for stream input). */
+/** Set the list of predefined symbols for the lexer (used internally). */
 extern void set_lexer_symbols(ex l);
 
-/** The expression parser function (used internally for stream input). */
-extern int yyparse();
+/** Check whether lexer symbol was predefined (vs. created by the lexer, e.g. function names). */
+extern bool is_lexer_symbol_predefined(const ex &s);
+
+/** The expression parser function (used internally). */
+extern int ginac_yyparse();
 
-/** The expression returned by the parser (used internally for stream input). */
+/** The expression returned by the parser (used internally). */
 extern ex parsed_ex;
 
 /** Get error message from the parser. */
-extern string get_parser_error(void);
+extern std::string get_parser_error(void);
 
 #ifndef NO_NAMESPACE_GINAC
 } // namespace GiNaC