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authortpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-03-01 19:17:32 +0000
committertpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-03-01 19:17:32 +0000
commite38d2351b83fa65c66ccde443777647ef5cb6cff (patch)
tree1897fc20e9f73a81c520a5b9f76f8ed042124883 /src/translators/btparse/error.c
downloadtellico-e38d2351b83fa65c66ccde443777647ef5cb6cff.tar.gz
tellico-e38d2351b83fa65c66ccde443777647ef5cb6cff.zip
Added KDE3 version of Tellico
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/tellico@1097620 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'src/translators/btparse/error.c')
-rw-r--r--src/translators/btparse/error.c348
1 files changed, 348 insertions, 0 deletions
diff --git a/src/translators/btparse/error.c b/src/translators/btparse/error.c
new file mode 100644
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+++ b/src/translators/btparse/error.c
@@ -0,0 +1,348 @@
+/* ------------------------------------------------------------------------
+@NAME : error.c
+@DESCRIPTION: Anything relating to reporting or recording errors and
+ warnings.
+@GLOBALS : errclass_names
+ err_actions
+ err_handlers
+ errclass_counts
+ error_buf
+@CALLS :
+@CREATED : 1996/08/28, Greg Ward
+@MODIFIED :
+@VERSION : $Id: error.c,v 2.5 1999/11/29 01:13:10 greg Rel $
+@COPYRIGHT : Copyright (c) 1996-99 by Gregory P. Ward. All rights reserved.
+
+ This file is part of the btparse library. This library 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.
+-------------------------------------------------------------------------- */
+
+/*#include "bt_config.h"*/
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include "btparse.h"
+#include "error.h"
+/*#include "my_dmalloc.h"*/
+
+
+#define NUM_ERRCLASSES ((int) BTERR_INTERNAL + 1)
+
+
+static const char *errclass_names[NUM_ERRCLASSES] =
+{
+ NULL, /* BTERR_NOTIFY */
+ "warning", /* BTERR_CONTENT */
+ "warning", /* BTERR_LEXWARN */
+ "warning", /* BTERR_USAGEWARN */
+ "error", /* BTERR_LEXERR */
+ "syntax error", /* BTERR_SYNTAX */
+ "fatal error", /* BTERR_USAGEERR */
+ "internal error" /* BTERR_INTERNAL */
+};
+
+static const bt_erraction err_actions[NUM_ERRCLASSES] =
+{
+ BTACT_NONE, /* BTERR_NOTIFY */
+ BTACT_NONE, /* BTERR_CONTENT */
+ BTACT_NONE, /* BTERR_LEXWARN */
+ BTACT_NONE, /* BTERR_USAGEWARN */
+ BTACT_NONE, /* BTERR_LEXERR */
+ BTACT_NONE, /* BTERR_SYNTAX */
+ BTACT_CRASH, /* BTERR_USAGEERR */
+ BTACT_ABORT /* BTERR_INTERNAL */
+};
+
+void print_error (bt_error *err);
+
+static bt_err_handler err_handlers[NUM_ERRCLASSES] =
+{
+ print_error,
+ print_error,
+ print_error,
+ print_error,
+ print_error,
+ print_error,
+ print_error,
+ print_error
+};
+
+static int errclass_counts[NUM_ERRCLASSES] = { 0, 0, 0, 0, 0, 0, 0, 0 };
+static char error_buf[MAX_ERROR+1];
+
+
+/* ----------------------------------------------------------------------
+ * Error-handling functions.
+ */
+
+void print_error (bt_error *err)
+{
+ const char * name;
+ boolean something_printed;
+
+ something_printed = FALSE;
+
+ if (err->filename)
+ {
+ fprintf (stderr, err->filename);
+ something_printed = TRUE;
+ }
+ if (err->line > 0) /* going to print a line number? */
+ {
+ if (something_printed)
+ fprintf (stderr, ", ");
+ fprintf (stderr, "line %d", err->line);
+ something_printed = TRUE;
+ }
+ if (err->item_desc && err->item > 0) /* going to print an item number? */
+ {
+ if (something_printed)
+ fprintf (stderr, ", ");
+ fprintf (stderr, "%s %d", err->item_desc, err->item);
+ something_printed = TRUE;
+ }
+
+ name = errclass_names[(int) err->errclass];
+ if (name)
+ {
+ if (something_printed)
+ fprintf (stderr, ", ");
+ fprintf (stderr, name);
+ something_printed = TRUE;
+ }
+
+ if (something_printed)
+ fprintf (stderr, ": ");
+
+ fprintf (stderr, "%s\n", err->message);
+
+} /* print_error() */
+
+
+
+/* ----------------------------------------------------------------------
+ * Error-reporting functions: these are called anywhere in the library
+ * when we encounter an error.
+ */
+
+void
+report_error (bt_errclass errclass,
+ char * filename,
+ int line,
+ const char * item_desc,
+ int item,
+ const char * fmt,
+ va_list arglist)
+{
+ bt_error err;
+#if !HAVE_VSNPRINTF
+ int msg_len;
+#endif
+
+ err.errclass = errclass;
+ err.filename = filename;
+ err.line = line;
+ err.item_desc = item_desc;
+ err.item = item;
+
+ errclass_counts[(int) errclass]++;
+
+
+ /*
+ * Blech -- we're writing to a static buffer because there's no easy
+ * way to know how long the error message is going to be. (Short of
+ * reimplementing printf(), or maybe printf()'ing to a dummy file
+ * and using the return value -- ugh!) The GNU C library conveniently
+ * supplies vsnprintf(), which neatly solves this problem by truncating
+ * the output string if it gets too long. (I could check for this
+ * truncation if I wanted to, but I don't think it's necessary given the
+ * ample size of the message buffer.) For non-GNU systems, though,
+ * we're stuck with using vsprintf()'s return value. This can't be
+ * trusted on all systems -- thus there's a check for it in configure.
+ * Also, this won't necessarily trigger the internal_error() if we
+ * do overflow; it's conceivable that vsprintf() itself would crash.
+ * At least doing it this way we avoid the possibility of vsprintf()
+ * silently corrupting some memory, and crashing unpredictably at some
+ * later point.
+ */
+
+#if HAVE_VSNPRINTF
+ vsnprintf (error_buf, MAX_ERROR, fmt, arglist);
+#else
+ msg_len = vsprintf (error_buf, fmt, arglist);
+ if (msg_len > MAX_ERROR)
+ internal_error ("static error message buffer overflowed");
+#endif
+
+ err.message = error_buf;
+ if (err_handlers[errclass])
+ (*err_handlers[errclass]) (&err);
+
+ switch (err_actions[errclass])
+ {
+ case BTACT_NONE: return;
+ case BTACT_CRASH: exit (1);
+ case BTACT_ABORT: abort ();
+ default: internal_error ("invalid error action %d for class %d (%s)",
+ (int) err_actions[errclass],
+ (int) errclass, errclass_names[errclass]);
+ }
+
+} /* report_error() */
+
+
+GEN_ERRFUNC (general_error,
+ (bt_errclass errclass,
+ char * filename,
+ int line,
+ const char * item_desc,
+ int item,
+ char * fmt,
+ ...),
+ errclass, filename, line, item_desc, item, fmt)
+
+GEN_ERRFUNC (error,
+ (bt_errclass errclass,
+ char * filename,
+ int line,
+ char * fmt,
+ ...),
+ errclass, filename, line, NULL, -1, fmt)
+
+GEN_ERRFUNC (ast_error,
+ (bt_errclass errclass,
+ AST * ast,
+ char * fmt,
+ ...),
+ errclass, ast->filename, ast->line, NULL, -1, fmt)
+
+GEN_ERRFUNC (notify,
+ (const char * fmt, ...),
+ BTERR_NOTIFY, NULL, -1, NULL, -1, fmt)
+
+GEN_ERRFUNC (usage_warning,
+ (const char * fmt, ...),
+ BTERR_USAGEWARN, NULL, -1, NULL, -1, fmt)
+
+GEN_ERRFUNC (usage_error,
+ (const char * fmt, ...),
+ BTERR_USAGEERR, NULL, -1, NULL, -1, fmt)
+
+GEN_ERRFUNC (internal_error,
+ (const char * fmt, ...),
+ BTERR_INTERNAL, NULL, -1, NULL, -1, fmt)
+
+
+/* ======================================================================
+ * Functions to be used outside of the library
+ */
+
+/* ------------------------------------------------------------------------
+@NAME : bt_reset_error_counts()
+@INPUT :
+@OUTPUT :
+@RETURNS :
+@DESCRIPTION: Resets all the error counters to zero.
+@GLOBALS :
+@CALLS :
+@CREATED : 1997/01/08, GPW
+@MODIFIED :
+-------------------------------------------------------------------------- */
+void bt_reset_error_counts (void)
+{
+ int i;
+
+ for (i = 0; i < NUM_ERRCLASSES; i++)
+ errclass_counts[i] = 0;
+}
+
+
+/* ------------------------------------------------------------------------
+@NAME : bt_get_error_count()
+@INPUT : errclass
+@OUTPUT :
+@RETURNS :
+@DESCRIPTION: Returns number of errors seen in the specified class.
+@GLOBALS : errclass_counts
+@CALLS :
+@CREATED :
+@MODIFIED :
+-------------------------------------------------------------------------- */
+int bt_get_error_count (bt_errclass errclass)
+{
+ return errclass_counts[errclass];
+}
+
+
+/* ------------------------------------------------------------------------
+@NAME : bt_get_error_counts()
+@INPUT : counts - pointer to an array big enough to hold all the counts
+ if NULL, the array will be allocated for you (and you
+ must free() it when done with it)
+@OUTPUT :
+@RETURNS : counts - either the passed-in pointer, or the newly-
+ allocated array if you pass in NULL
+@DESCRIPTION: Returns a newly-allocated array with the number of errors
+ in each error class, indexed by the members of the
+ eclass_t enum.
+@GLOBALS : errclass_counts
+@CALLS :
+@CREATED : 1997/01/06, GPW
+@MODIFIED :
+-------------------------------------------------------------------------- */
+int *bt_get_error_counts (int *counts)
+{
+ int i;
+
+ if (counts == NULL)
+ counts = (int *) malloc (sizeof (int) * NUM_ERRCLASSES);
+ for (i = 0; i < NUM_ERRCLASSES; i++)
+ counts[i] = errclass_counts[i];
+
+ return counts;
+}
+
+
+/* ------------------------------------------------------------------------
+@NAME : bt_error_status
+@INPUT : saved_counts - an array of error counts as returned by
+ bt_get_error_counts, or NULL not to compare
+ to a previous checkpoint
+@OUTPUT :
+@RETURNS :
+@DESCRIPTION: Computes a bitmap where a bit is set for each error class
+ that has more errors now than it used to have (or, if
+ saved_counts is NULL, the bit is set of there are have been
+ any errors in the corresponding error class).
+
+ Eg. "x & (1<<E_SYNTAX)" (where x is returned by bt_error_status)
+ is true if there have been any syntax errors.
+@GLOBALS :
+@CALLS :
+@CREATED :
+@MODIFIED :
+-------------------------------------------------------------------------- */
+ushort bt_error_status (int *saved_counts)
+{
+ int i;
+ ushort status;
+
+ status = 0;
+
+ if (saved_counts)
+ {
+ for (i = 0; i < NUM_ERRCLASSES; i++)
+ status |= ( (errclass_counts[i] > saved_counts[i]) << i);
+ }
+ else
+ {
+ for (i = 0; i < NUM_ERRCLASSES; i++)
+ status |= ( (errclass_counts[i] > 0) << i);
+ }
+
+ return status;
+} /* bt_error_status () */