Hi guys,
/*  The user is granted a free limited license to use this source file  */
/*  to create royalty-free programs, subject to the terms of the        */
/*  license restrictions specified in the LICENSE.MFL file.             */
Snipped from the current Snippets collection, fnsplit.c. 
I always thought everything in there was PD but it doesn't look it.:-(
If i don't want people to use my code freely,why would i post it into 
a snips collection  ? To be a show off ?
So just to be a rebel and a show off, here is my fnsplit. 

Public domain by Frank Adam 1996.
Can be used as a direct replacement of Borland's fnsplit() and fnmerge()
Especially fnmerge is better as you can chuck just about anything at it
and still comes up with some sort of valid path..I hope :) 

/* #define TEST /* uncomment to test */

#ifdef TEST
 #include 
#endif
           
/* bcport.h */

#ifndef __DIR_H

int fnsplit(const char *path, char *drive, char *dir, char *name,
char *ext);
void fnmerge(char *path, const char *drive, const char *dir,
const char *name, const char *ext);

 #define WILDCARDS 1
 #define EXTENSION 2
 #define FILENAME  4
 #define DIRECTORY 8
 #define DRIVE     16

 #define MAXDRIVE 3
 #define MAXPATH 80
 #define MAXDIR  66
 #define MAXFILE  9
 #define MAXEXT   5

/* end header */

int fnsplit(const char *path, char *drive, char *dir, char *name,char *ext)
{
#ifndef _STRING_H
 #include 
#endif

 const char *p1 = path,*p2=NULL,*p3=NULL,*p4=NULL,*p5=NULL,*pt = path;
 int flags = 0;
 *drive = '\0';*dir = '\0';*name = '\0';*ext = '\0';
 while(*pt && *pt == ' ') pt++;
 p1 = pt; /* strip leading spaces */

 if(!pt) return 0;

 while(*pt && !flags)
 {
  if(*pt == '*' || *pt == '?') flags |= WILDCARDS;
  pt++;
  }

 pt = path;
 p2 = strrchr(p1,'.');
 p3 = strchr(p1,'\\');
 p4 = strrchr(p1,'\\');
 p5 = strchr(p1,':');

 if(p2) {strcat(ext,p2);flags |= EXTENSION;}
 if(p3)
 {
  flags |= DIRECTORY;if(p4 && p4 == p3) p4 = NULL;
  }
 if(p5 == (pt + 1)) flags |= DRIVE;

 if(flags & DRIVE) strncat(drive,pt,2);
 if(flags & DIRECTORY)
 {
  if(p4) strncat(dir,p3,(size_t)((p4 - p3)+1));
   else strncat(dir,p3,1);
  }

 if(p4)
 {
  if(!*(p4+1) || *(p4+1) == '.') return flags;

  flags |= FILENAME;
  if(p2)
   strncat(name,p4+1,(size_t)(p2-p4)-1);
  else if(*(p4 + 1))
  {
   strncat(name,p4+1,MAXFILE);
   name[MAXFILE-1] = '\0';
   }

  }

 else if(p3)
 {
  if(!*(p3+1) || *(p3+1) == '.') return flags;
  flags |= FILENAME;
  if(p2)
   strncat(name,p3+1,(size_t)(p2-p3)-1);
  else
  {
   strncat(name,p3+1,MAXFILE);
   name[MAXFILE-1] = '\0';
   }
  }

 else if(p2 && p2 != pt)
 {
  flags |= FILENAME;
  strncat(name,pt,(size_t)(p2-pt));
  }

 else if(!flags && !(flags & WILDCARDS))
 {
  flags |= FILENAME;
  if(*pt)
  {
   strncat(name,pt,MAXFILE);
   name[MAXFILE-1] = '\0';
   }

  }

return flags;
}


void fnmerge(char *path, const char *drive, const char *dir,
const char *name, const char *ext)  /* no need to trim spaces off psegs */
{
 const char *p;char *p1 = path;
 int count,havedir = 0;

if(drive)
{
 p = drive;
 while(*p && *p == ' ')p++;
 if(*p)
 {
  *p1++ = *drive;
  *p1++ = ':';
  }
 }

if(dir)
{
  p = dir;
  count = 0;
 while(*p && *p == ' ')p++;   /* trim leading spaces if any */
 if(*p)
 {
  havedir = 1;
  if(p1 != path && *p != '\\') *p1++ = '\\';
  while(*p && *p != ' ' && count < (MAXDIR - 1))
  {
   *p1++ = *p++;
   count++;
   }
  if(*(p1 - 1) != '\\') *p1++ = '\\';
  }
}

if(name)
{
 p = name;
 if(*p && !havedir && *drive) *p1++ = '\\';
 count = 0;
 while(*p && *p == ' ')p++;
 if(*p) while(*p && *p != ' ' && count < (MAXFILE - 1))
 {
  *p1++ = *p++;
  count++;
  }

 }

if(ext)
{
 p = ext;
 count = 0;
 while(*p && *p == ' ') p++;
 if(*p != '.')
 {
  *p1++ = '.';count++;
  }
 if(*p && p) while(*p && *p != ' ' && count <
(MAXEXT - 1))
 {
  *p1++ = *p++;
  count++;
  }
}

*p1 = '\0';
}

#ifdef TEST

main()
{
 char drive[MAXDRIVE];
 char dir[MAXDIR];
 char file[MAXFILE];
 char ext[MAXEXT];
 char path[MAXPATH];

 fnsplit("c:\\borlandc\\bin\\bcc.exe",drive,dir,file,ext);
 fnmerge(path,"c","mygreatdir","mygreatfile","myextension");

 printf("\n%s\n%s\n%s\n%s\n%s",drive,dir,file,ext,path);
 return 0;
 }

#endif
  
Comments as always...
 
   L8r Frank(fadam{at}ozemail.com.au)
___ Blue Wave/DOS v2.21

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