/*

     File: CAFilePathUtils.cpp 

 Abstract:  CAFilePathUtils.h  

  Version: 1.01 

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*/

#include "CAFilePathUtils.h"

#include <string.h>

#if !CA_NO_CORE_SERVICES

#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)

    #include <CoreServices/CoreServices.h> // FSRef

    #include <CoreAudio/CoreAudioTypes.h>

#else

    #include <CoreServices.h>

    #include <CoreAudioTypes.h>

#endif

OSStatus    PosixPathToParentFSRefAndName(const char *path, FSRef &outParentDir, CFStringRef &outFileName)

{

    // convert C string to CFString

#if !TARGET_OS_WIN32

    CFStringRef cfFullPath = CFStringCreateWithCString(NULL, path, kCFStringEncodingUTF8);

#else

    CFStringRef cfFullPath = CFStringCreateWithCString(NULL, path, kCFStringEncodingWindowsLatin1);

#endif

    // convert CF string to URL

    CFURLRef fullurl = CFURLCreateWithFileSystemPath(NULL, cfFullPath, TARGET_OS_WIN32 ? kCFURLWindowsPathStyle : kCFURLPOSIXPathStyle, false);

    CFRelease(cfFullPath);

    // get the directory portion of the URL

    CFURLRef dirurl = CFURLCreateCopyDeletingLastPathComponent(NULL, fullurl);

    // get the directory's FSRef

    OSStatus err = CFURLGetFSRef(dirurl, &outParentDir) ? OSStatus(noErr) : OSStatus(kAudio_FileNotFoundError);

    CFRelease(dirurl);

    CFStringRef lastPathComponent = CFURLCopyLastPathComponent(fullurl);

    CFRelease(fullurl);

    CFMutableStringRef filename = CFStringCreateMutableCopy(NULL, 0, lastPathComponent);

    CFRelease(lastPathComponent);

    // convert colons (legal in POSIX paths, illegal in File Manager) to slashes

    CFStringFindAndReplace(filename, CFSTR(":"), CFSTR("/"), CFRangeMake(0, CFStringGetLength(filename)), 0);

    outFileName = filename;

    return err;

}

#endif // !CA_NO_CORE_SERVICES

#if TARGET_OS_WIN32

char*   dirname(const char* inPath)

{

    static char sAnswer[1024];

    char* theAnswer = NULL;

    SInt32 thePathLength = strlen(inPath);

    if(thePathLength < 1023)

    {

        //  make a working copy

        strcpy(sAnswer, inPath);

        //  start at the end of the string

        SInt32 theIndex = thePathLength - 1;

        //  walk back over the '\' characters

        while((theIndex > 0) && (sAnswer[theIndex] == '\\'))

        {

            --theIndex;

        }

        //  now keep walking back until we get to a '\'

        while((theIndex > 0) && (sAnswer[theIndex] != '\\'))

        {

            --theIndex;

        }

        //  where we are now is either the first character of the path or the '\' that marks the end of the directory name

        if(theIndex > 0)

        {

            //  we have a name so put a '\0' in place of the '\'

            sAnswer[theIndex] = 0;

        }

        else

        {

            //  no name, so the answer is "."

            sAnswer[0] = '.';

            sAnswer[1] = 0;

        }

        //  set the return value

        theAnswer = sAnswer;

    }

    return theAnswer;

}

char*   basename(const char* inPath)

{

    static char sAnswer[1024];

    char* theAnswer = NULL;

    SInt32 thePathLength = strlen(inPath);

    if(thePathLength < 1023)

    {

        //  make a working copy

        strcpy(sAnswer, inPath);

        //  start at the end of the string

        SInt32 theLastIndex = thePathLength - 1;

        //  walk back over the '\' characters

        while((theLastIndex > 0) && (sAnswer[theLastIndex] == '\\'))

        {

            --theLastIndex;

        }

        //  check to see if we're at the beginning now

        if(theLastIndex > 0)

        {

            //  there's a name in there now, so start where we are and go back to the next '\'

            UInt32 theFirstIndex = theLastIndex;

            while((theFirstIndex > 0) && (sAnswer[theFirstIndex] != '\\'))

            {

                --theFirstIndex;

            }

            //  we now have a string, so put a '\0' after the last character

            sAnswer[theLastIndex + 1] = 0;

            //  and set the return value

            theAnswer = &sAnswer[theFirstIndex];

        }

        else

        {

            //  the path was entirely '\' characters, so the return value is "\"

            sAnswer[0] = '\\';

            sAnswer[1] = 0;

            //  set the return value

            theAnswer = sAnswer;

        }

    }

    return theAnswer;

}

#endif