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// Common/ListFileUtils.cpp
#include "StdAfx.h"
#include "../../C/CpuArch.h"
#include "../Windows/FileIO.h"
#include "ListFileUtils.h"
#include "MyBuffer.h"
#include "StringConvert.h"
#include "UTFConvert.h"
static const char kQuoteChar = '\"';
static void AddName(UStringVector &strings, UString &s)
{
s.Trim();
if (s.Len() >= 2 && s[0] == kQuoteChar && s.Back() == kQuoteChar)
{
s.DeleteBack();
s.Delete(0);
}
if (!s.IsEmpty())
strings.Add(s);
}
bool ReadNamesFromListFile(CFSTR fileName, UStringVector &strings, UINT codePage)
{
NWindows::NFile::NIO::CInFile file;
if (!file.Open(fileName,true)) /* follow the symbolic link */
return false;
UInt64 fileSize;
if (!file.GetLength(fileSize))
return false;
if (fileSize >= ((UInt32)1 << 31) - 32)
return false;
UString u;
if (codePage == MY__CP_UTF16 || codePage == MY__CP_UTF16BE)
{
if ((fileSize & 1) != 0)
return false;
CByteArr buf((size_t)fileSize);
UInt32 processed;
if (!file.Read(buf, (UInt32)fileSize, processed))
return false;
if (processed != fileSize)
return false;
file.Close();
unsigned num = (unsigned)fileSize / 2;
wchar_t *p = u.GetBuf(num);
if (codePage == MY__CP_UTF16)
for (unsigned i = 0; i < num; i++)
{
wchar_t c = GetUi16(buf + i * 2);
if (c == 0)
return false;
p[i] = c;
}
else
for (unsigned i = 0; i < num; i++)
{
wchar_t c = (wchar_t)GetBe16(buf + i * 2);
if (c == 0)
return false;
p[i] = c;
}
p[num] = 0;
u.ReleaseBuf_SetLen(num);
}
else
{
AString s;
char *p = s.GetBuf((unsigned)fileSize);
UInt32 processed;
if (!file.Read(p, (UInt32)fileSize, processed))
return false;
if (processed != fileSize)
return false;
file.Close();
s.ReleaseBuf_CalcLen((unsigned)processed);
if (s.Len() != processed)
return false;
// #ifdef CP_UTF8
if (codePage == CP_UTF8)
{
if (!ConvertUTF8ToUnicode(s, u))
return false;
}
else
// #endif
MultiByteToUnicodeString2(u, s, codePage);
}
const wchar_t kGoodBOM = 0xFEFF;
const wchar_t kBadBOM = 0xFFFE;
UString s;
unsigned i = 0;
for (; i < u.Len() && u[i] == kGoodBOM; i++);
for (; i < u.Len(); i++)
{
wchar_t c = u[i];
if (c == kGoodBOM || c == kBadBOM)
return false;
if (c == L'\n' || c == 0xD)
{
AddName(strings, s);
s.Empty();
}
else
s += c;
}
AddName(strings, s);
return true;
}
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