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// Common/Lang.cpp
#include "StdAfx.h"
#include "Lang.h"
#include "TextConfig.h"
#include "StdInStream.h"
#include "UTFConvert.h"
#include "Defs.h"
/*
static UInt32 HexStringToNumber(const char *string, int &finishPos)
{
UInt32 number = 0;
for (finishPos = 0; finishPos < 8; finishPos++)
{
char c = string[finishPos];
int a;
if (c >= '0' && c <= '9')
a = c - '0';
else if (c >= 'A' && c <= 'F')
a = 10 + c - 'A';
else if (c >= 'a' && c <= 'f')
a = 10 + c - 'a';
else
return number;
number *= 0x10;
number += a;
}
return number;
}
*/
static bool HexStringToNumber(const UString &string, UInt32 &aResultValue)
{
aResultValue = 0;
if (string.IsEmpty())
return false;
for (int i = 0; i < string.Length(); i++)
{
wchar_t c = string[i];
int a;
if (c >= L'0' && c <= L'9')
a = c - L'0';
else if (c >= L'A' && c <= L'F')
a = 10 + c - L'A';
else if (c >= L'a' && c <= L'f')
a = 10 + c - L'a';
else
return false;
aResultValue *= 0x10;
aResultValue += a;
}
return true;
}
static bool WaitNextLine(const AString &string, int &pos)
{
for (;pos < string.Length(); pos++)
if (string[pos] == 0x0A)
return true;
return false;
}
static int CompareLangItems(void *const *elem1, void *const *elem2, void *)
{
const CLangPair &langPair1 = *(*((const CLangPair **)elem1));
const CLangPair &langPair2 = *(*((const CLangPair **)elem2));
return MyCompare(langPair1.Value, langPair2.Value);
}
bool CLang::Open(LPCTSTR fileName)
{
_langPairs.Clear();
CStdInStream file;
if (!file.Open(fileName))
return false;
AString string;
file.ReadToString(string);
file.Close();
int pos = 0;
if (string.Length() >= 3)
{
if (Byte(string[0]) == 0xEF && Byte(string[1]) == 0xBB && Byte(string[2]) == 0xBF)
pos += 3;
}
/////////////////////
// read header
AString stringID = ";!@Lang@!UTF-8!";
if (string.Mid(pos, stringID.Length()) != stringID)
return false;
pos += stringID.Length();
if (!WaitNextLine(string, pos))
return false;
CObjectVector<CTextConfigPair> pairs;
if (!GetTextConfig(string.Mid(pos), pairs))
return false;
_langPairs.Reserve(_langPairs.Size());
for (int i = 0; i < pairs.Size(); i++)
{
CTextConfigPair textConfigPair = pairs[i];
CLangPair langPair;
if (!HexStringToNumber(textConfigPair.ID, langPair.Value))
return false;
langPair.String = textConfigPair.String;
_langPairs.Add(langPair);
}
_langPairs.Sort(CompareLangItems, NULL);
return true;
}
int CLang::FindItem(UInt32 value) const
{
int left = 0, right = _langPairs.Size();
while (left != right)
{
UInt32 mid = (left + right) / 2;
UInt32 midValue = _langPairs[mid].Value;
if (value == midValue)
return mid;
if (value < midValue)
right = mid;
else
left = mid + 1;
}
return -1;
}
bool CLang::GetMessage(UInt32 value, UString &message) const
{
int index = FindItem(value);
if (index < 0)
return false;
message = _langPairs[index].String;
return true;
}
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