--- a/stage4/stage4.hh Fri Apr 01 11:10:06 2011 +0200
+++ b/stage4/stage4.hh Mon Apr 04 13:25:39 2011 +0200
@@ -1,21 +1,28 @@
/*
- * (c) 2003 Mario de Sousa
+ * matiec - a compiler for the programming languages defined in IEC 61131-3
*
- * Offered to the public under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * Copyright (C) 2003-2011 Mario de Sousa (msousa@fe.up.pt)
*
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
- * Public License for more details.
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
*
* This code is made available on the understanding that it will not be
* used in safety-critical situations without a full and competent review.
*/
/*
- * An IEC 61131-3 IL and ST compiler.
+ * An IEC 61131-3 compiler.
*
* Based on the
* FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
@@ -41,6 +48,9 @@
stage4out_c(const char *dir, const char *radix, const char *extension, std::string indent_level = " ");
~stage4out_c(void);
+ void enable_output(void);
+ void disable_output(void);
+
void indent_right(void);
void indent_left(void);
@@ -62,6 +72,13 @@
protected:
std::ostream *out;
std::fstream *m_file;
+
+ /* A flag to tell whether to really print to the file, or to ignore any request to print to the file */
+ /* This is used to implement the no_code_generation pragmas, that lets the user tell the compiler
+ * when to switch on and off the code generation, without stoping the lexical, syntatical, and
+ * semantic analysers from analysing the code.
+ */
+ bool allow_output;
};