GLK: ALAN3: Initial files commit

1 files changed, 95 insertions, 0 deletions

diff --git a/engines/glk/alan3/syntax.cpp b/engines/glk/alan3/syntax.cpp
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index 0000000000..6edb1cecd3
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+++ b/engines/glk/alan3/syntax.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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "glk/alan3/syntax.h"
+#include "glk/alan3/word.h"
+#include "glk/alan3/msg.h"
+#include "glk/alan3/lists.h"
+#include "glk/alan3/compatibility.h"
+
+namespace Glk {
+namespace Alan3 {
+
+/* PUBLIC DATA */
+SyntaxEntry *stxs;      /* Syntax table pointer */
+
+
+/* PRIVATE TYPES & DATA */
+
+
+/*+++++++++++++++++++++++++++++++++++++++++++++++++++*/
+
+/*======================================================================*/
+ElementEntry *elementTreeOf(SyntaxEntry *stx) {
+    return (ElementEntry *) pointerTo(stx->elms);
+}
+
+
+/*----------------------------------------------------------------------*/
+static SyntaxEntry *findSyntaxEntryForPreBeta2(int verbCode, SyntaxEntry *foundStx) {
+    SyntaxEntryPreBeta2 *stx;
+    for (stx = (SyntaxEntryPreBeta2*)stxs; !isEndOfArray(stx); stx++)
+        if (stx->code == verbCode) {
+            foundStx = (SyntaxEntry *)stx;
+            break;
+        }
+    return(foundStx);
+}
+
+
+/*----------------------------------------------------------------------*/
+static SyntaxEntry *findSyntaxEntry(int verbCode) {
+    SyntaxEntry *stx;
+    for (stx = stxs; !isEndOfArray(stx); stx++)
+        if (stx->code == verbCode) {
+            return stx;
+            break;
+        }
+    return NULL;
+}
+
+
+/*======================================================================*/
+SyntaxEntry *findSyntaxTreeForVerb(int verbCode) {
+    SyntaxEntry *foundStx = NULL;
+    if (isPreBeta2(header->version)) {
+        foundStx = findSyntaxEntryForPreBeta2(verbCode, foundStx);
+    } else {
+        foundStx = findSyntaxEntry(verbCode);
+    }
+    if (foundStx == NULL)
+        /* No matching syntax */
+        error(M_WHAT);
+    return foundStx;
+}
+
+
+/*======================================================================*/
+char *parameterNameInSyntax(int syntaxNumber, int parameterNumber) {
+    Aaddr adr = addressAfterTable(header->parameterMapAddress, sizeof(ParameterMapEntry));
+    Aaddr *syntaxParameterNameTable = (Aaddr *)pointerTo(memory[adr]);
+    Aaddr *parameterNameTable = (Aaddr *)pointerTo(syntaxParameterNameTable[syntaxNumber-1]);
+    return stringAt(parameterNameTable[parameterNumber-1]);
+}
+
+} // End of namespace Alan3
+} // End of namespace Glk