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engines/glk/tads/tads2/error.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/tads/tads2/error.h"
+#include "glk/tads/tads2/error_handling.h"
+#include "glk/tads/tads2/tokenizer.h"
+
+namespace Glk {
+namespace TADS {
+namespace TADS2 {
+
+/* format an error message, sprintf-style, using an erradef array */
+int errfmt(char *outbuf, int outbufl, const char *fmt, int argc, const erradef *argv) {
+	int    outlen = 0;
+	int    argi   = 0;
+	int    len = 0;
+	char   buf[20];
+	const char  *p = nullptr;
+	char   fmtchar;
+
+	while (*fmt)
+	{
+		switch(*fmt)
+		{
+		case '\\':
+			++fmt;
+			len = 1;
+			switch(*fmt)
+			{
+			case '\0':
+				--fmt;
+				break;
+			case '\n':
+				p = "\n";
+				break;
+			case '\t':
+				p = "\t";
+				break;
+			default:
+				p = fmt;
+				break;
+			}
+			break;
+
+		case '%':
+			++fmt;
+			fmtchar = *fmt;
+			if (argi >= argc) fmtchar = 1;          /* too many - ignore it */
+			switch(fmtchar)
+			{
+			case '\0':
+				--fmt;
+				break;
+
+			case '%':
+				p = "%";
+				len = 1;
+				break;
+
+			case 'd':
+				Common::sprintf_s(buf, "%d", argv[argi].erraint);
+				len = strlen(buf);
+				p = buf;
+				break;
+
+			case 's':
+				p = argv[argi].errastr;
+				len = strlen(p);
+				break;
+
+			case 't':
+				{
+					int i;
+					static struct
+					{
+						int   tokid;
+						const char *toknam;
+					} toklist[] =
+					{
+						{ TOKTSEM, "semicolon" },
+						{ TOKTCOLON, "colon" },
+						{ TOKTFUNCTION, "\"function\"" },
+						{ TOKTCOMMA, "comma" },
+						{ TOKTLBRACE, "left brace ('{')" },
+						{ TOKTRPAR, "right paren (')')" },
+						{ TOKTRBRACK, "right square bracket (']')" },
+						{ TOKTWHILE, "\"while\"" },
+						{ TOKTLPAR, "left paren ('(')" },
+						{ TOKTEQ, "'='" },
+						{ 0, (const char *)nullptr }
+					};
+
+					for (i = 0 ; toklist[i].toknam ; ++i)
+					{
+						if (toklist[i].tokid == argv[argi].erraint)
+						{
+							p = toklist[i].toknam;
+							break;
+						}
+					}
+					if (!toklist[i].toknam)
+						p = "<unknown token>";
+					len = strlen(p);
+					break;
+				}
+
+			default:
+				p = "";
+				len = 0;
+				--argi;
+				break;
+			}
+			++argi;
+			break;
+
+		default:
+			p = fmt;
+			len = 1;
+			break;
+		}
+
+		/* copy output that was set up above */
+		if (len)
+		{
+			if (outbufl >= len)
+			{
+				memcpy(outbuf, p, (size_t)len);
+				outbufl -= len;
+				outbuf += len;
+			}
+			else if (outbufl)
+			{
+				memcpy(outbuf, p, (size_t)outbufl);
+				outbufl = 0;
+			}
+			outlen += len;
+		}
+		++fmt;
+	}
+
+	if (outbufl) *outbuf++ = '\0';
+	return(outlen);
+}
+
+
+#ifdef ERR_NO_MACRO
+
+/* base error signal function */
+void errsign(errcxdef *ctx, int e) {
+	ctx->errcxofs = 0;
+#if 0
+	longjmp(ctx->errcxptr->errbuf, e);
+#else
+	error("errsign");
+#endif
+}
+
+/* log an error: base function */
+void errlogn(errcxdef *ctx, int err) {
+	error("errlogn");
+}
+
+#endif /* ERR_NO_MACRO */
+
+} // End of namespace TADS2
+} // End of namespace TADS
+} // End of namespace Glk