NAME

       filepath - return the whole search path of a file

SYNOPSYS

       #include "mut.h"
       char ∗filepath(name, extension)
       char ∗name, ∗extension;

PARAMETERS

       name                Name of the file to be search for

       extension           File extension

DESCRIPTION

       filepath  return the absolute path of a cell.  This is useful for error messages, since the caller of mbk
       file functions is not able to specify explicitly which file it opened.  Having  such  an  information  is
       also  necessary  when last modification times or access times are needed, as for consistency checks.  The
       file  is  searched  through  the  environment  variable  MBK_WORK_LIB(1),  and  if  not  found,   through
       MBK_CATA_LIB(1) in the user defined order.
       The file to be searched is called name.extension, if extension is not NULL, else it is name. If extension
       is the empty string, "", then the file name will be name. .

RETURN VALUE

       filepath returns NULL on failure, ie the file is not in the pathes, or the absolute path on success.  The
       value  returned,  when not NULL, is stored in a static buffer, so this values is to use at return time or
       copied into a user buffer.

EXAMPLE

       #include <stdio.h>
       #include "mut.h"
       #include "mph.h"
       void vti_error(fig, error)
       phfig_list ∗fig;
       char *(*error)();
       {
             fprintf(stderr, "Syntax error in %s\n", filepath(fig->NAME, "cp"));
             fprintf(stderr, "%s\n", error());
       }

SEE ALSO

       mbk(1), MBK_WORK_LIB(1), MBK_CATA_LIB(1), mbkfopen(3).  mbkunlink(3).