TITANIC: Implemented parser normalizeContraction

3 files changed, 125 insertions, 35 deletions

diff --git a/engines/titanic/true_talk/tt_parser.cpp b/engines/titanic/true_talk/tt_parser.cpp
index 0bb30a14b5..5aa3576a0f 100644
--- a/engines/titanic/true_talk/tt_parser.cpp
+++ b/engines/titanic/true_talk/tt_parser.cpp
@@ -166,6 +166,87 @@ int TTparser::isSpecialCommand(const TTstring &str, int &index) {
 }
 
 bool TTparser::normalizeContraction(const TTstring &srcLine, int srcIndex, TTstring &destLine) {
+	int startIndex = srcIndex + 1;
+	switch (srcLine[startIndex]) {
+	case 'd':
+		srcIndex += 2;
+		if (srcLine.compareAt(srcIndex, " a ") || srcLine.compareAt(srcIndex, " the ")) {
+			destLine += " had";
+		} else {
+			destLine += " would";
+		}
+
+		srcIndex = startIndex;
+		break;
+
+	case 'l':
+		if (srcLine[srcIndex + 2] == 'l') {
+			// 'll ending
+			destLine += " will";
+			srcIndex = startIndex;
+		}
+		break;
+
+	case 'm':
+		// 'm ending
+		destLine += " am";
+		srcIndex = startIndex;
+		break;
+
+	case 'r':
+		// 're ending
+		if (srcLine[srcIndex + 2] == 'e') {
+			destLine += " are";
+			srcIndex = startIndex;
+		}
+		break;
+
+	case 's':
+		destLine += "s*";
+		srcIndex = startIndex;
+		break;
+
+	case 't':
+		if (srcLine[srcIndex - 1] == 'n' && srcIndex >= 3) {
+			if (srcLine[srcIndex - 3] == 'c' && srcLine[srcIndex - 2] == 'a' &&
+				(srcIndex == 3 || srcLine[srcIndex - 4])) {
+				// can't -> can not
+				destLine += 'n';
+			} else if (srcLine[srcIndex - 3] == 'w' && srcLine[srcIndex - 2] == 'o' &&
+				(srcIndex == 3 || srcLine[srcIndex - 4])) {
+				// won't -> will not
+				destLine.deleteLastChar();
+				destLine.deleteLastChar();
+				destLine += "ill";
+			} else if (srcLine[srcIndex - 3] == 'a' && srcLine[srcIndex - 2] == 'i' &&
+				(srcIndex == 3 || srcLine[srcIndex - 4])) {
+				// ain't -> am not
+				destLine.deleteLastChar();
+				destLine.deleteLastChar();
+				destLine += "m";
+			} else if (srcLine.hasSuffix(" sha") || 
+					(srcIndex == 4 && srcLine.hasSuffix("sha"))) {
+				// shan't -> shall not
+				destLine.deleteLastChar();
+				destLine += "ll";
+			}
+
+			destLine += " not";
+		}
+		break;
+
+	case 'v':
+		// 've ending
+		if (srcLine[startIndex + 2] == 'e') {
+			destLine += " have";
+			srcIndex = startIndex;
+		}
+		break;
+
+	default:
+		break;
+	}
+
 	// TODO
 	return false;
 }
diff --git a/engines/titanic/true_talk/tt_string.cpp b/engines/titanic/true_talk/tt_string.cpp
index 5574cffb48..7a0078788d 100644
--- a/engines/titanic/true_talk/tt_string.cpp
+++ b/engines/titanic/true_talk/tt_string.cpp
@@ -95,34 +95,6 @@ TTstring &TTstring::operator+=(char c) {
 	return *this;
 }
 
-const char &TTstring::operator[](uint index) {
-	return *(c_str() + index);
-}
-
-bool TTstring::empty() const {
-	return _data->_string.empty();
-}
-
-char TTstring::firstChar() const {
-	return _data->_string.firstChar();
-}
-
-char TTstring::lastChar() const {
-	return _data->_string.lastChar();
-}
-
-int TTstring::size() const {
-	return _data->_string.size();
-}
-
-TTstring *TTstring::copy() const {
-	return new TTstring(c_str());
-}
-
-bool TTstring::isValid() const {
-	return _status == SS_VALID;
-}
-
 void TTstring::save(SimpleFile *file) const {
 	file->writeFormat("%s", c_str());
 }
diff --git a/engines/titanic/true_talk/tt_string.h b/engines/titanic/true_talk/tt_string.h
index 3b2b6a2245..2009167b75 100644
--- a/engines/titanic/true_talk/tt_string.h
+++ b/engines/titanic/true_talk/tt_string.h
@@ -57,21 +57,51 @@ public:
 	TTstring &operator+=(const char *str);
 	TTstring &operator+=(const TTstring &str);
 	TTstring &operator+=(char c);
-	const char &operator[](uint index);
-	bool empty() const;
-	char firstChar() const;
-	char lastChar() const;
-	int size() const;
+
+	const char &operator[](uint index) {
+		return *(c_str() + index);
+	}
+
+	bool empty() const {
+		return _data->_string.empty();
+	}
+
+	char firstChar() const {
+		return _data->_string.firstChar();
+	}
+
+	char lastChar() const {
+		return _data->_string.lastChar();
+	}
+
+	int size() const {
+		return _data->_string.size();
+	}
+
+	void deleteLastChar() {
+		_data->_string.deleteLastChar();
+	}
+
+	bool hasSuffix(const CString &str) const {
+		return _data->_string.hasSuffix(str);
+	}
+	bool hasSuffix(const char *str) const {
+		return _data->_string.hasSuffix(str);
+	}
 
 	/**
 	 * Create a new copy of the string
 	 */
-	TTstring *copy() const;
+	TTstring *copy() const {
+		return new TTstring(c_str());
+	}
 
 	/**
 	 * Returns true if the string is valid
 	 */
-	bool isValid() const;
+	bool isValid() const {
+		return _status == SS_VALID;
+	}
 
 	/**
 	 * Get the status of the string
@@ -97,6 +127,13 @@ public:
 	 * Save the sring to a passed file
 	 */
 	void save(SimpleFile *file) const;
+
+	/**
+	 * Compare a substring within the string at the specified index
+	 */
+	bool compareAt(int index, const char *str) const {
+		return !strncmp(c_str() + index, str, strlen(str));
+	}
 };
 
 } // End of namespace Titanic