1 files changed, 49 insertions, 0 deletions
diff --git a/liba2ps/message.h b/liba2ps/message.h
new file mode 100644
index 0000000..ccf62be
--- /dev/null
+++ b/liba2ps/message.h
@@ -0,0 +1,49 @@
+/* message.h - declaration for verbosity sensitive feedback function
+   Copyright 1998-2017 Free Software Foundation, Inc.
+
+   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, 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, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+   02110-1301, USA.  */
+
+#ifndef MESSAGE_H_
+# define MESSAGE_H_
+
+/* The bigger, the more verbose.  Should be set by application
+   (default is 0, set to -1 for to messages) */
+extern unsigned int msg_verbosity;
+
+/* Decode ARG which is the verbosity level wanted: either an integer
+   specifying directly the bits, or using a comma separated list of
+   token which are ARGMATCHed. */
+
+unsigned msg_verbosity_argmatch (const char *option, char *arg);
+
+/* Return non null value if message at LVL should be displayed. */
+
+# define msg_test(lvl) ((lvl) & msg_verbosity)
+
+/* fprintf (TEXT) at verbosity LEVEL. */
+
+# define message(level,text)	\
+  do {				\
+    if (msg_test (level))	\
+      fprintf text;		\
+  } while (0)
+
+/* Include the definition of the verbosity levels.  This is
+   application dependant. */
+
+# include "msg.h"
+
+#endif /* not MESSAGE_H_ */