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engines/glk/alan2/params.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/alan2/types.h"
+#include "glk/alan2/params.h"
+
+namespace Glk {
+namespace Alan2 {
+
+void compact(ParamElem a[]) {
+	int i, j;
+
+	for (i = 0, j = 0; a[j].code != (Aword)EOD; j++)
+		if (a[j].code != 0)
+			a[i++] = a[j];
+	a[i].code = (Aword)EOD;
+}
+
+int lstlen(ParamElem a[]) {
+	int i = 0;
+
+	while (a[i].code != (Aword)EOD)
+		i++;
+	return (i);
+}
+
+Boolean inlst(ParamElem l[], Aword e) {
+	int i;
+
+	for (i = 0; l[i].code != (Aword)EOD && l[i].code != e; i++);
+	return (l[i].code == e);
+}
+
+void lstcpy(ParamElem a[], ParamElem b[]) {
+	int i;
+
+	for (i = 0; b[i].code != (Aword)EOD; i++)
+		a[i] = b[i];
+	a[i].code = (Aword)EOD;
+}
+
+void sublst(ParamElem a[], ParamElem b[]) {
+	int i;
+
+	for (i = 0; a[i].code != (Aword)EOD; i++)
+		if (inlst(b, a[i].code))
+			a[i].code = 0;        /* Mark empty */
+	compact(a);
+}
+
+void mrglst(ParamElem a[], ParamElem b[]) {
+	int i, last;
+
+	for (last = 0; a[last].code != (Aword)EOD; last++); /* Find end of list */
+	for (i = 0; b[i].code != (Aword)EOD; i++)
+		if (!inlst(a, b[i].code)) {
+			a[last++] = b[i];
+			a[last].code = (Aword)EOD;
+		}
+}
+
+void isect(ParamElem a[], ParamElem b[]) {
+	int i, last = 0;
+
+	for (i = 0; a[i].code != (Aword)EOD; i++)
+		if (inlst(b, a[i].code))
+			a[last++] = a[i];
+	a[last].code = (Aword)EOD;
+}
+
+void cpyrefs(ParamElem p[], Aword r[]) {
+	int i;
+
+	for (i = 0; r[i] != (Aword)EOD; i++) {
+		p[i].code = r[i];
+		p[i].firstWord = (Aword)EOD;
+	}
+	p[i].code = (Aword)EOD;
+}
+
+} // End of namespace Alan2
+} // End of namespace Glk