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engines/glk/alan3/word.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/word.h"
+#include "glk/alan3/types.h"
+#include "glk/alan3/memory.h"
+#include "glk/alan3/syserr.h"
+#include "glk/alan3/lists.h"
+
+namespace Glk {
+namespace Alan3 {
+
+/* PUBLIC DATA */
+
+/* List of parsed words, index into dictionary */
+Word *playerWords = nullptr;
+int currentWordIndex; /* An index into the list of playerWords */
+int firstWord, lastWord;  /* Index for the first and last words for this command */
+
+/* Some variable for dynamically allocating the playerWords, which will happen in scan() */
+static int playerWordsLength = 0;
+#define PLAYER_WORDS_EXTENT 20
+
+/* What did the user say? */
+int verbWord; /* The word he used as a verb, dictionary index */
+int verbWordCode; /* The code for that verb */
+
+
+/* PRIVATE TYPES & DATA */
+
+
+/*+++++++++++++++++++++++++++++++++++++++++++++++++++*/
+
+void ensureSpaceForPlayerWords(int size) {
+	int newLength = playerWordsLength + PLAYER_WORDS_EXTENT;
+
+	if (playerWordsLength < size + 1) {
+		playerWords = (Word *)realloc(playerWords, newLength * sizeof(Word));
+		if (playerWords == nullptr)
+			syserr("Out of memory in 'ensureSpaceForPlayerWords()'");
+		playerWordsLength = newLength;
+	}
+}
+
+
+/*======================================================================*/
+char *playerWordsAsCommandString(void) {
+	char *commandString;
+	int size = playerWords[lastWord].end - playerWords[firstWord].start;
+	commandString = (char *)allocate(size + 1);
+	strncpy(commandString, playerWords[firstWord].start, size);
+	commandString[size] = '\0';
+	return commandString;
+}
+
+
+/*======================================================================*/
+void clearWordList(Word list[]) {
+	implementationOfSetEndOfArray((Aword *)list);
+}
+
+} // End of namespace Alan3
+} // End of namespace Glk