From e16239e21fb1893e700f1a11bbc251d9915c03a7 Mon Sep 17 00:00:00 2001
From: Paul Gilbert
Date: Mon, 16 May 2016 19:29:46 -0400
Subject: TITANIC: Implemented parser replaceNumbers sub-methods

---
 engines/titanic/titanic.h               | 12 ++++++++++++
 engines/titanic/true_talk/tt_parser.cpp | 34 +++++++++++++++++++++++++++++++++
 engines/titanic/true_talk/tt_parser.h   | 10 ++++++++++
 3 files changed, 56 insertions(+)

(limited to 'engines/titanic')

diff --git a/engines/titanic/titanic.h b/engines/titanic/titanic.h
index 95d1abae04..2b08f56f7d 100644
--- a/engines/titanic/titanic.h
+++ b/engines/titanic/titanic.h
@@ -82,6 +82,17 @@ struct TitanicSavegameHeader {
 	int _totalFrames;
 };
 
+enum NumberFlag { NF_2 = 2, NF_8 = 8, NF_10 = 0x10 };
+
+struct NumberEntry {
+	CString _text;
+	int _value;
+	int _flags;
+	NumberEntry(const CString &text, int value, int flags) :
+		_text(text), _value(value), _flags(flags) {}
+};
+typedef Common::Array<NumberEntry> NumberArray;
+
 class TitanicEngine : public Engine {
 private:
 	/**
@@ -137,6 +148,7 @@ public:
 	StringArray _replacements2;
 	StringArray _replacements3;
 	StringArray _phrases;
+	NumberArray _numbers;
 public:
 	TitanicEngine(OSystem *syst, const TitanicGameDescription *gameDesc);
 	virtual ~TitanicEngine();
diff --git a/engines/titanic/true_talk/tt_parser.cpp b/engines/titanic/true_talk/tt_parser.cpp
index 4fdaf58671..9aa6c2ef7a 100644
--- a/engines/titanic/true_talk/tt_parser.cpp
+++ b/engines/titanic/true_talk/tt_parser.cpp
@@ -321,4 +321,38 @@ int TTparser::searchAndReplace(TTstring &line, int startIndex, const StringArray
 	return startIndex;
 }
 
+bool TTparser::replaceNumbers(TTstring &line, int *startIndex) {
+	int lineSize = line.size();
+	int index = *startIndex;
+	if (index < 0 || index >= lineSize)
+		return true;
+
+	NumberArray &numbers = g_vm->_numbers;
+	NumberEntry *numEntry = nullptr;
+
+	for (uint idx = 0; idx < numbers.size(); ++idx) {
+		NumberEntry &ne = numbers[idx];
+		if (!strncmp(line.c_str() + index, ne._text.c_str(), ne._text.size())) {
+			if ((ne._flags & NF_10) || (index + ne._text.size()) >= lineSize ||
+					line[index + ne._text.size()] == ' ') {
+				*startIndex += ne._text.size();
+				numEntry = &ne;
+				break;
+			}
+		}
+	}
+
+	if (!numEntry || !(numEntry->_flags & NF_10)) {
+		// Skip to end of current word
+		while (*startIndex < lineSize && !Common::isSpace(line[*startIndex]))
+			++*startIndex;
+	}
+
+	// Skip over following spaces until start of following word is reached
+	while (*startIndex < lineSize && Common::isSpace(line[*startIndex]))
+		++*startIndex;
+
+	return *startIndex < lineSize;
+}
+
 } // End of namespace Titanic
diff --git a/engines/titanic/true_talk/tt_parser.h b/engines/titanic/true_talk/tt_parser.h
index 1eed38d515..22a2850516 100644
--- a/engines/titanic/true_talk/tt_parser.h
+++ b/engines/titanic/true_talk/tt_parser.h
@@ -67,6 +67,16 @@ private:
 	 * @returns				Index of the start of the following word			
 	 */
 	static int searchAndReplace(TTstring &line, int startIndex, const StringArray &strings);
+
+	/**
+	 * Checks the string starting at a given index for a number representation
+	 * such as roman numericals, spelled out numbers, etc. and replaces it with
+	 * a plain decimal representation.
+	 * @param line			Line to check
+	 * @param startIndex	Starting index in the start to check
+	 * @returns				True if end of line hasn't been reached yet
+	 */
+	static bool replaceNumbers(TTstring &line, int *startIndex);
 public:
 	CScriptHandler *_owner;
 	int _field4;
-- 
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