From 89711b175e318ba17b9e1504382e16c88cafbeea Mon Sep 17 00:00:00 2001
From: Dmitry Mikhirev
Date: Fri, 4 Jan 2013 15:53:08 +0400
Subject: better encapsulation in utf8 class

---
 utf8.cpp | 56 +++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 33 insertions(+), 23 deletions(-)

(limited to 'utf8.cpp')

diff --git a/utf8.cpp b/utf8.cpp
index 745e888..d4e605e 100644
--- a/utf8.cpp
+++ b/utf8.cpp
@@ -1,7 +1,7 @@
 /*
     Brainuino Aleph
 
-    Copyright (C) 2012  Dmitry Mikhirev
+    Copyright (C) 2012, 2013  Dmitry Mikhirev
 
     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
@@ -22,20 +22,20 @@
 
 utf8::utf8 (char* input)
 {
-  bytes = strlen(input);
-  string = strdup(input);
-  chars = 0;
-  for (_index = 0; _index < bytes; _index++) {
-    if ((string[_index] & 0x80) == 0x00) {
-      chars++;
-    } else if ((string[_index] & 0x20) == 0x00) {
-      chars++;
+  _bytes = strlen(input);
+  _string = strdup(input);
+  _chars = 0;
+  for (_index = 0; _index < _bytes; _index++) {
+    if ((_string[_index] & 0x80) == 0x00) {
+      _chars++;
+    } else if ((_string[_index] & 0x20) == 0x00) {
+      _chars++;
       _index ++;
-    } else if ((string[_index] & 0x10) == 0x00) {
-      chars++;
+    } else if ((_string[_index] & 0x10) == 0x00) {
+      _chars++;
       _index += 2;
-    } else if ((string[_index] & 0x08) == 0x00) {
-      chars++;
+    } else if ((_string[_index] & 0x08) == 0x00) {
+      _chars++;
       _index += 3;
     }
   }
@@ -44,24 +44,34 @@ utf8::utf8 (char* input)
 
 utf8::~utf8 ()
 {
-  free(string);
+  free(_string);
 }
 
 int32_t utf8::get()
 {
   int32_t code;
-  if ((string[_index] & 0x80) == 0) {
-    code = int32_t(string[_index]);
+  if ((_string[_index] & 0x80) == 0) {
+    code = int32_t(_string[_index]);
     _index++;
-  } else if ((string[_index] & 0x20) == 0) {
-    code = int32_t(string[_index] & 0x1f) << 6 | int32_t(string[_index+1] & 0x3f);
+  } else if ((_string[_index] & 0x20) == 0) {
+    code = int32_t(_string[_index] & 0x1f) << 6 | int32_t(_string[_index+1] & 0x3f);
     _index += 2;
-  } else if ((string[_index] & 0x10) == 0) {
-    code = int32_t(string[_index] & 0xf) << 12 | int32_t(string[_index+1] & 0x3f) << 6 | int32_t(string[_index+2] & 0x3f);
+  } else if ((_string[_index] & 0x10) == 0) {
+    code = int32_t(_string[_index] & 0xf) << 12 | int32_t(_string[_index+1] & 0x3f) << 6 | int32_t(_string[_index+2] & 0x3f);
     _index += 3;
-  } else if ((string[_index] & 0x8) == 0) {
-    code = int32_t(string[_index] & 0x7) << 18 | int32_t(string[_index+1] & 0x3f) << 12 | int32_t(string[_index+2] & 0x3f) << 6 | int32_t(string[_index+3] & 0x3f);
+  } else if ((_string[_index] & 0x8) == 0) {
+    code = int32_t(_string[_index] & 0x7) << 18 | int32_t(_string[_index+1] & 0x3f) << 12 | int32_t(_string[_index+2] & 0x3f) << 6 | int32_t(_string[_index+3] & 0x3f);
   }
-  if (_index >= bytes) _index = 0;
+  if (_index >= _bytes) _index = 0;
   return code;
 }
+
+uint16_t utf8::chars()
+{
+  return _chars;
+}
+
+uint16_t utf8::bytes()
+{
+  return _bytes;
+}
-- 
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