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