Added new files resulting from directory restructuring.

[pspp-builds.git] / src / libpspp / message.h

diff --git a/src/libpspp/message.h b/src/libpspp/message.h
new file mode 100644 (file)
index 0000000..8f86d0a
--- /dev/null
+++ b/src/libpspp/message.h
@@ -0,0 +1,102 @@
+/* PSPP - computes sample statistics.
+   Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
+   Written by Ben Pfaff <blp@gnu.org>.
+
+   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 2 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, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA. */
+
+#if !error_h
+#define error_h 1
+
+#include <stdarg.h>
+#include <stdbool.h>
+
+/* Message classes. */
+enum
+  {
+    SE, SW, SM,                        /* Script error/warning/message. */
+    IE, IS,                    /* Installation error/script error. */
+    DE, DW,                    /* Data-file error/warning. */
+    ME, MW, MM,                        /* General error/warning/message. */
+    ERR_CLASS_COUNT,           /* Number of message classes. */
+    ERR_CLASS_MASK = 0xf,      /* Bitmask for class. */
+    ERR_VERBOSITY_SHIFT = 4,   /* Shift count for verbosity. */
+    ERR_VERBOSITY_MASK = 0xf   /* Bitmask for verbosity. */
+  };
+
+/* If passed to msg() as CLASS, the return value will cause the message
+   to be displayed only if `verbosity' is at least LEVEL. */
+#define VM(LEVEL) (MM | ((LEVEL) << ERR_VERBOSITY_SHIFT))
+
+/* A file location.  */
+struct file_locator
+  {
+    const char *filename;              /* Filename. */
+    int line_number;                   /* Line number. */
+  };
+
+/* An error message. */
+struct error
+  {
+    int class;                 /* One of the classes above. */
+    struct file_locator where; /* File location, or (NULL, -1). */
+    const char *title;         /* Special text inserted if not null. */
+  };
+
+/* Number of errors, warnings reported. */
+extern int err_error_count;
+extern int err_warning_count;
+
+/* If number of allowable errors/warnings is exceeded, then a message
+   is displayed and this flag is set to suppress subsequent
+   messages. */
+extern int err_already_flagged;
+
+/* Nonnegative verbosity level.  Higher value == more verbose. */
+extern int err_verbosity;
+
+/* Functions. */
+void msg (int class, const char *format, ...)
+     PRINTF_FORMAT (2, 3);
+void tmsg (int class, const char *title, const char *format, ...)
+     PRINTF_FORMAT (3, 4);
+
+/* File-locator stack. */
+void err_push_file_locator (const struct file_locator *);
+void err_pop_file_locator (const struct file_locator *);
+void err_location (struct file_locator *);
+
+/* Obscure functions. */
+void err_set_command_name (const char *);
+void err_done (void);
+void err_check_count (void);
+void err_vmsg (const struct error *, const char *, va_list);
+
+/* Used in panic situations only */
+void request_bug_report_and_abort(const char *msg );
+
+void err_assert_fail(const char *expr, const char *file, int line);
+
+#undef __STRING
+#define __STRING(x) #x
+#undef assert
+
+                              
+#define assert(expr) ( (void) ( expr ? (void) 0 : \
+              err_assert_fail(__STRING(expr), __FILE__, __LINE__)) )
+
+
+
+#endif /* error.h */