SCI: Allow multiple word groups in parse tree leafs

This is to prepare for multilingual SCI versions. In those a single typed word
may be parsed to multiple class,group pairs, any of which may match
the said specs. The actual parsing is not yet implemented.

svn-id: r52985

1 files changed, 3 insertions, 0 deletions

diff --git a/engines/sci/parser/grammar.cpp b/engines/sci/parser/grammar.cpp
index 6f37b49919..ad00397057 100644
--- a/engines/sci/parser/grammar.cpp
+++ b/engines/sci/parser/grammar.cpp
@@ -445,6 +445,7 @@ static int _vbpt_append(ParseTreeNode *nodes, int *pos, int base, int value) {
 	nodes[base].left = &nodes[++(*pos)];
 	nodes[*pos].type = kParseTreeLeafNode;
 	nodes[*pos].value = value;
+	nodes[*pos].right = 0;
 	nodes[base].right = &nodes[++(*pos)];
 	nodes[*pos].type = kParseTreeBranchNode;
 	nodes[*pos].left = 0;
@@ -456,6 +457,7 @@ static int _vbpt_terminate(ParseTreeNode *nodes, int *pos, int base, int value)
 	// Terminates, overwriting a nextwrite forknode
 	nodes[base].type = kParseTreeLeafNode;
 	nodes[base].value = value;
+	nodes[base].right = 0;
 	return *pos;
 }
 
@@ -570,6 +572,7 @@ int Vocabulary::parseGNF(const ResultWordList &words, bool verbose) {
 
 		_parserNodes[1].type = kParseTreeLeafNode;
 		_parserNodes[1].value = 0x141;
+		_parserNodes[1].right = 0;
 
 		_parserNodes[2].type = kParseTreeBranchNode;
 		_parserNodes[2].left = 0;