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engines/glk/alan3/syserr.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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/>.
+ *
+ */
+
+#include "glk/alan3/syserr.h"
+#include "glk/alan3/current.h"
+#include "glk/alan3/debug.h"
+#include "glk/alan3/glkio.h"
+#include "glk/alan3/output.h"
+#include "glk/alan3/utils.h"
+#include "common/textconsole.h"
+
+namespace Glk {
+namespace Alan3 {
+
+static void (*handler)(const char *);
+
+/*----------------------------------------------------------------------*/
+static void runtimeError(CONTEXT, const char *errorClassification, const char *errorDescription, const char *blurb) {
+	output("$n$nAs you enter the twilight zone of Adventures, you stumble \
+and fall to your knees. In front of you, you can vaguely see the outlines \
+of an Adventure that never was.$n$n");
+	output(errorClassification);
+	output(errorDescription);
+	newline();
+
+	if (current.sourceLine != 0) {
+		printf("At source line %d in '%s':\n", current.sourceLine, sourceFileName(current.sourceFile));
+		printf("%s", readSourceLine(current.sourceFile, current.sourceLine));
+	}
+
+	newline();
+	output(blurb);
+
+	terminate(context, 2);
+}
+
+static void runtimeError(const char *errorClassification, const char *errorDescription, const char *blurb) {
+	::error("%s%s %s", errorClassification, errorDescription, blurb);
+}
+
+
+/*======================================================================*/
+void setSyserrHandler(void (*f)(const char *)) {
+	handler = f;
+}
+
+
+/*======================================================================*/
+// TODO Make syserr() use ... as printf()
+void syserr(const char *description) {
+	lin = 0;
+	if (handler == nullptr) {
+		const char *blurb = "<If you are the creator of this piece of Interactive Fiction, \
+please help debug this Alan system error. Collect *all* the sources, and, if possible, an \
+exact transcript of the commands that led to this error, in a zip-file and send \
+it to support@alanif.se. Thank you!>";
+		runtimeError("SYSTEM ERROR: ", description, blurb);
+	} else
+		handler(description);
+}
+
+
+/*======================================================================*/
+void apperr(const char *description) {
+	if (handler == nullptr) {
+		const char *blurb = "<If you are playing this piece of Interactive Fiction, \
+please help the author to debug this programming error. Send an exact \
+transcript of the commands that led to this error to the author. Thank you! \
+If you *are* the author, then you have to figure this out before releasing the game.>";
+		runtimeError("APPLICATION ERROR: ", description, blurb);
+	} else
+		handler(description);
+}
+
+/*======================================================================*/
+void playererr(CONTEXT, const char *description) {
+	if (handler == nullptr) {
+		const char *blurb = "<You have probably done something that is not exactly right.>";
+		runtimeError(context, "PLAYER ERROR: ", description, blurb);
+	} else
+		handler(description);
+}
+
+} // End of namespace Alan3
+} // End of namespace Glk