Int16u FNSplit (const char * pathP,
char * driveP,
char * dirP,
char * nameP,
char * extP)
{
Int16u Ret;
//Set all string to default value zero
Ret = 0;
if (driveP)
*driveP = 0;
if (dirP)
*dirP = 0;
if (nameP)
*nameP = 0;
if (extP)
*extP = 0;
if (pathP == 0)
return 0;
const char * cursor = pathP,
* dirStart = 0,
* lastSlash = 0;
// if (StartsWithAnsi (cursor) && _istalpha (*cursor) &&
if (StartsWithAnsi (cursor) && isAlpha (*cursor) &&
StartsWithAnsiChar (cursor + 1, ':'))
{
// A drive letter presents.
if (driveP != 0)
StrCpyN (driveP, cursor, MAXDRIVE);
cursor += 2;
Ret |= DRIVE;
}
dirStart = cursor;
// now find the last slash
while (*cursor != '\0')
{
if (StartsWithAnsiChar (cursor, '/') ||
StartsWithAnsiChar (cursor, '\\'))
lastSlash = cursor;
cursor = AnsiNext (cursor);
}
if (lastSlash != 0)
{
// a slash was seen
if (dirP != 0)
{
Int16u bytesToCopy = lastSlash - dirStart
+ 1 // for '/'
+ 1; // for '\0'
if (bytesToCopy > MAXDIR)
bytesToCopy = MAXDIR;
StrCpyN (dirP, dirStart, bytesToCopy);
}
cursor = lastSlash + 1;
Ret |= DIRECTORY;
} else
cursor = dirStart;
// cursor now points to the start of the filename
// check for wildcards
if (AnsiStrChr (cursor, '*') != 0 ||
AnsiStrChr (cursor, '?') != 0)
Ret |= WILDCARDS;
// now see if there's an extension
const char * period = 0;
for (const char * ptr = cursor; *ptr != '\0'; ptr = AnsiNext (ptr))
{
if (StartsWithAnsiChar (ptr, '.'))
period = ptr;
}
if (period != 0)
{
Int16u bytesToCopy = period - cursor + 1; // for '\0'
if (bytesToCopy > MAXFILE)
bytesToCopy = MAXFILE;
if (bytesToCopy > 0)
{
if (nameP != 0)
StrCpyN (nameP, cursor, bytesToCopy);
Ret |= FILENAME;
}
if (extP != 0)
StrCpyN (extP, period, MAXEXT);
Ret |= EXTENSION;
} else
{
if (*cursor != '\0')
{
if (nameP != 0)
StrCpyN (nameP, cursor, MAXFILE);
Ret |= FILENAME;
}
}
#if defined (DEBUG_FNSPLIT)
static char buffer [MAXPATH + MAXPATH + 32];
wsprintf (buffer,
"pathP:[%s] driveP:[%s] dirP:[%s] nameP:[%s] extP:[%s]",
pathP,
driveP != NULL ? driveP : "<NULL>",
dirP != NULL ? dirP : "<NULL>",
nameP != NULL ? nameP : "<NULL>",
extP != NULL ? extP : "<NULL>");
MessageBox (GetActiveWindow (), buffer, "FNSplit", MB_OK);
#endif //(DEBUG_FNSPLIT)
return Ret;
}
inline char * AnsiStrChr (char * s, char c)
{
return ((char *)AnsiStrChr ((const char *)s, c));
}
