From 626737b9fa7845ae2c62007ea79af1704c245aab Mon Sep 17 00:00:00 2001
From: Thomas Harte <thomas.harte@gmail.com>
Date: Mon, 12 Jun 2017 21:32:36 -0400
Subject: [PATCH] Started mucking about with some string conversion routines.
 Not finished yet.

---
 Storage/Data/ZX8081.cpp | 34 ++++++++++++++++++++++++++++++++++
 Storage/Data/ZX8081.hpp |  4 ++++
 2 files changed, 38 insertions(+)

diff --git a/Storage/Data/ZX8081.cpp b/Storage/Data/ZX8081.cpp
index 7df811cc6..81d647e48 100644
--- a/Storage/Data/ZX8081.cpp
+++ b/Storage/Data/ZX8081.cpp
@@ -90,3 +90,37 @@ std::shared_ptr<File> Storage::Data::ZX8081::FileFromData(const std::vector<uint
 	if(result) return result;
 	return ZX81FileFromData(data);
 }
+
+#pragma mark - String conversion
+
+std::wstring Storage::Data::ZX8081::StringFromData(const std::vector<uint8_t> &data, bool is_zx81) {
+	std::wstring string;
+
+	wchar_t zx80_map[] = {
+		' ',	u'\u2598',	u'\u259d',	u'\u2580',	u'\u2596',	u'\u258c',	u'\u259e',	u'\u259b',	u'\u2588',	u'\u2584',	u'\u2580',	'"',	u'£',	'$',	':',	'?',
+		'(',	')',		'>',		'<',		'=',		'+',		'-',		'*',		'/',		';',		',',		'.',	'0',	'1',	'2',	'3',
+		'4',	'5',		'6',		'7',		'8',		'9',		'A',		'B',		'C',		'D',		'E',		'F',	'G',	'H',	'I',	'J',
+		'K',	'L',		'M',		'N',		'O',		'P',		'Q',		'R',		'S',		'T',		'U',		'V',	'W',	'X',	'Y',	'Z'
+	};
+	wchar_t zx81_map[] = {
+		' ',	u'\u2598',	u'\u259d',	u'\u2580',	u'\u2596',	u'\u258c',	u'\u259e',	u'\u259b',	u'\u2588',	u'\u2584',	u'\u2580',	u'£',	'$',	':',	'?',
+		'(',	')',		'-',		'+',		'*',		'/',		'=',		'>',		'<',		';',		',',		'.',	'0',	'1',	'2',	'3',
+		'4',	'5',		'6',		'7',		'8',		'9',		'A',		'B',		'C',		'D',		'E',		'F',	'G',	'H',	'I',	'J',
+		'K',	'L',		'M',		'N',		'O',		'P',		'Q',		'R',		'S',		'T',		'U',		'V',	'W',	'X',	'Y',	'Z'
+	};
+	wchar_t *map = is_zx81 ? zx81_map : zx80_map;
+
+	for(uint8_t byte : data) {
+		string.push_back(map[byte & 0x3f]);
+	}
+
+	return string;
+}
+
+std::vector<uint8_t> DataFromString(const std::wstring &string, bool is_zx81) {
+	std::vector<uint8_t> data;
+
+	// TODO
+
+	return data;
+}
diff --git a/Storage/Data/ZX8081.hpp b/Storage/Data/ZX8081.hpp
index 5003e710a..148479556 100644
--- a/Storage/Data/ZX8081.hpp
+++ b/Storage/Data/ZX8081.hpp
@@ -25,6 +25,10 @@ struct File {
 
 std::shared_ptr<File> FileFromData(const std::vector<uint8_t> &data);
 
+std::wstring StringFromData(const std::vector<uint8_t> &data, bool is_zx81);
+std::vector<uint8_t> DataFromString(const std::wstring &string, bool is_zx81);
+
+
 }
 }
 }