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FileName.h

Go to the documentation of this file.

#ifndef Impala_Basis_FileName_h
#define Impala_Basis_FileName_h

#ifdef unix
#include <sys/types.h>
#include <unistd.h>
#else
#include <process.h>

// SK: must be included before winsock.h, which is included 
// by windows.h, in order to prevent code clashes.
#include <winsock2.h> 

#include <windows.h>
#endif

#include "Basis/String.h"

namespace Impala
{


inline String::size_type
FileNameLastPathSepPos(CString filePath)
{
    const String::size_type b1 = filePath.rfind('/');
    const String::size_type b2 = filePath.rfind('\\');
    if (b1 == b2) // both equal npos
        return String::npos;
    if (b1 == String::npos)
        return b2;
    if (b2 == String::npos)
        return b1;
    return (b1 > b2) ? b1 : b2;
}

inline String
FileNameExt(CString filePath, bool doLowerCase = false)
{
    const String::size_type dotPos = filePath.rfind('.');
    if (dotPos == String::npos || dotPos + 1 == filePath.size())
        return String("");

    const String::size_type sepPos = FileNameLastPathSepPos(filePath);
    if (sepPos != String::npos && sepPos > dotPos)
        return String("");

    String ext = filePath.substr(dotPos + 1);
    if (doLowerCase)
        for (String::size_type i = 0 ; i < ext.size() ; i++)
            ext[i] = tolower(ext[i]);
    return ext;
}

inline String
FileNameBase(CString filePath)
{
    String::size_type startPos = 0;

    {
        const String::size_type sepPos = FileNameLastPathSepPos(filePath);
        if (sepPos != String::npos)
        {
            if (sepPos + 1 == filePath.size())
                return String("");
            startPos = sepPos + 1;
        }
    }

    String::size_type dotPos = filePath.rfind('.');
    if (dotPos == String::npos)
        dotPos = filePath.size();

    if (dotPos >= startPos)
        return filePath.substr(startPos, dotPos - startPos);

    return filePath.substr(startPos);
}

inline String
FileNameTail(CString filePath)
{
    const String::size_type sepPos = FileNameLastPathSepPos(filePath);
    if (sepPos == String::npos)
        return filePath;

    if (sepPos + 1 == filePath.size())
        return String("");

    return filePath.substr(sepPos + 1);
}

inline String
FileNamePath(CString filePath)
{
    const String::size_type sepPos = FileNameLastPathSepPos(filePath);
    if (sepPos == String::npos)
        return String("");

    return filePath.substr(0, sepPos + 1);
}

inline String
FileNamePath2(CString filePath)
{
    const String::size_type sepPos = FileNameLastPathSepPos(filePath);
    if (sepPos == String::npos)
        return String("");

    return filePath.substr(0, sepPos);
}

inline String
FileNameConcat(CString fileName1, CString fileName2)
{
    if (fileName1.empty())
        return fileName2;
    if (fileName2.empty())
        return fileName1;
    if (StringEndsWith(fileName1, "/"))
        return fileName1 + fileName2;
    return fileName1 + "/" + fileName2;
}


template <class C1, class C2>
inline String
FileNameCtor(C1 a1, C2 a2, CString dotExt)
{
    return MakeString(a1) + "_" + MakeString(a2) + dotExt;
}

template <class C1, class C2, class C3>
inline String
FileNameCtor(C1 a1, C2 a2, C3 a3, CString dotExt)
{
    return MakeString(a1) + "_" + MakeString(a2) + "_" + MakeString(a3)
        + dotExt;
}

template <class C1, class C2, class C3, class C4>
inline String
FileNameCtor(C1 a1, C2 a2, C3 a3, C4 a4, CString dotExt)
{
    return MakeString(a1) + "_" + MakeString(a2) + "_" + MakeString(a3)
         + "_" + MakeString(a4) + dotExt;
}

template <class C1, class C2, class C3, class C4, class C5>
inline String
FileNameCtor(C1 a1, C2 a2, C3 a3, C4 a4, C5 a5, CString dotExt)
{
    return MakeString(a1) + "_" + MakeString(a2) + "_" + MakeString(a3)
         + "_" + MakeString(a4) + "_" + MakeString(a5) + dotExt;
}

template <class C1, class C2, class C3, class C4, class C5, class C6>
inline String
FileNameCtor(C1 a1, C2 a2, C3 a3, C4 a4, C5 a5, C6 a6, CString dotExt)
{
    return MakeString(a1) + "_" + MakeString(a2) + "_" + MakeString(a3)
        + "_" + MakeString(a4) + "_" + MakeString(a5)
        +  "_" + MakeString(a6) + dotExt;
}

template <class C1, class C2, class C3, class C4, class C5, class C6, class C7>
inline String
FileNameCtor(C1 a1, C2 a2, C3 a3, C4 a4, C5 a5, C6 a6, C7 a7, CString dotExt)
{
    return MakeString(a1) + "_" + MakeString(a2) + "_" + MakeString(a3)
        + "_" + MakeString(a4) + "_" + MakeString(a5)
        +  "_" + MakeString(a6) +  "_" + MakeString(a7) + dotExt;
}

} // namespace Impala

#endif

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