1 files changed, 161 insertions, 0 deletions
diff --git a/dmake/path.c b/dmake/path.c
new file mode 100644
index 000000000000..a4c2f9af7031
--- /dev/null
+++ b/dmake/path.c
@@ -0,0 +1,161 @@
+/* RCS  $Id: path.c,v 1.1.1.1 2000-09-22 15:33:25 hr Exp $
+--
+-- SYNOPSIS
+--      Pathname manipulation code
+--
+-- DESCRIPTION
+--  Pathname routines to handle building and pulling appart
+--  pathnames.
+--
+-- AUTHOR
+--      Dennis Vadura, dvadura@dmake.wticorp.com
+--
+-- WWW
+--      http://dmake.wticorp.com/
+--
+-- COPYRIGHT
+--      Copyright (c) 1996,1997 by WTI Corp.  All rights reserved.
+--
+--      This program is NOT free software; you can redistribute it and/or
+--      modify it under the terms of the Software License Agreement Provided
+--      in the file <distribution-root>/readme/license.txt.
+--
+-- LOG
+--      Use cvs log to obtain detailed change logs.
+*/
+
+#include "extern.h"
+
+
+/*
+** Return the suffix portion of a filename, assumed to begin with a `.'.
+*/
+PUBLIC char *
+Get_suffix(name)
+char *name;
+{
+   char *suff;
+
+   if(name == NIL(char)  || (suff = strrchr(name, '.')) == NIL(char))
+      suff = ".NULL";
+
+   return (suff);
+}
+
+
+PUBLIC char *
+Basename(path)
+char *path;
+{
+   char *p;
+   char *q;
+
+   if( path && *(q = path) ) {
+      for(; *(p=DmStrPbrk(q, DirBrkStr)) != '\0'; q = p+1 );
+      if( !*q ) {
+     for( p=q-1; p != path; --p )
+        if( strchr( DirBrkStr, *p ) == NIL(char) ) return( p+1 );
+     return( strchr(DirBrkStr, *p)?path:(p+1) );
+      }
+      path = q;
+   }
+   return( path );
+}
+
+
+PUBLIC char *
+Filedir(path)
+char *path;
+{
+   char *p;
+   char *q;
+
+   if( path && *(q = path) ) {
+      for(; *(p=DmStrPbrk(q,DirBrkStr)) != '\0'; q=p+1 );
+
+      if (q == path) return("");
+
+      for(p=q-1; p!=path; --p)
+     if( strchr(DirBrkStr,*p) == NIL(char) )
+        break;
+
+      p[1] = '\0';
+   }
+
+   return(path);
+}
+
+
+
+/*
+** Take dir and name, and return a path which has dir as the directory
+** and name afterwards.
+**
+** N.B. Assumes that the dir separator string is in DirSepStr.
+**      Return path is built in a static buffer, if you need to use it
+**      again you must strdup the result returned by Build_path.
+*/
+PUBLIC char *
+Build_path(dir, name)
+char *dir;
+char *name;
+{
+   register char *p;
+   register char *q;
+   static char     *path  = NIL(char);
+   static unsigned buflen = 0;
+   int  plen = 0;
+   int  dlen = 0;
+   int  len;
+
+   if( dir  != NIL(char) ) dlen = strlen( dir  );
+   if( name != NIL(char) ) plen = strlen( name );
+   len = plen+dlen+strlen(DirSepStr)+1;
+
+   if( len > buflen ) {
+      buflen = (len+16) & ~0xf;     /* buf is always multiple of 16 */
+
+      if( path == NIL(char) )
+         path = MALLOC( buflen, char );
+      else
+         path = realloc( path, (unsigned) (buflen*sizeof(char)) );
+   }
+
+   *path = '\0';
+
+   if( dlen ) {
+      strcpy( path, dir );
+      if( *path && strchr(DirBrkStr, dir[dlen-1]) == NIL(char) )
+     strcat( path, DirSepStr );
+   }
+
+   if ( plen ) {
+      while ( *name && strchr(DirBrkStr,*name) != 0 ) name++;
+      strcat( path, name );
+   }
+
+   q=path;
+   while( *q ) {
+      char *t;
+
+      p=DmStrPbrk(q,DirBrkStr);
+      t=DmStrPbrk(p+1,DirBrkStr);
+      if( !*p || !*t ) break;
+
+      if ( p-q == 1 && *q == '.' ) {
+     strcpy(q,DmStrSpn(p,DirBrkStr));
+     q = path;
+      }
+      else if (
+     !(p-q == 2 && strncmp(q,"..",2) == 0)
+      && (t-p-1 == 2 && strncmp(p+1,"..",2) == 0)
+      ) {
+     strcpy(q,DmStrSpn(t,DirBrkStr));
+     q = path;
+      }
+      else
+     q = p+1;
+   }
+
+   return( path );
+}