/*********************************************************************
* Copyright (C) 2000 by Progress Software Corporation ("PSC"),       *
* 14 Oak Park, Bedford, MA 01730, and other contributors as listed   *
* below.  All Rights Reserved.                                       *
*                                                                    *
* The Initial Developer of the Original Code is PSC.  The Original   *
* Code is Progress IDE code released to open source December 1, 2000.*
*                                                                    *
* The contents of this file are subject to the Possenet Public       *
* License Version 1.0 (the "License"); you may not use this file     *
* except in compliance with the License.  A copy of the License is   *
* available as of the date of this notice at                         *
* http://www.possenet.org/license.html                               *
*                                                                    *
* Software distributed under the License is distributed on an "AS IS"*
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. You*
* should refer to the License for the specific language governing    *
* rights and limitations under the License.                          *
*                                                                    *
* Contributors:                                                      *
*                                                                    *
*********************************************************************/
/*
* _ssearch
*
*    Given a a filename, it figures out if it, or its r code, is "out there."
*
* The algorithm:
*
*    1. No extension, assume the file is a .p.
*    2. If a .p then look for .p
*    3. If no .p then look for .r
*
* Input Parameters
*
*    fileName    Character holding the name
*
* Output Parameter
*
*    s           True if the fileName exists
*/

DEFINE INPUT  PARAMETER fileName AS CHARACTER NO-UNDO.
DEFINE OUTPUT PARAMETER qbf-s    AS CHARACTER NO-UNDO INITIAL "".

DEFINE VARIABLE baseName   AS CHARACTER NO-UNDO.
DEFINE VARIABLE extension  AS CHARACTER NO-UNDO.
DEFINE VARIABLE dot        AS INTEGER   NO-UNDO.

IF (fileName = ?) OR (fileName = "") THEN RETURN.

dot = INDEX(fileName, ".":u).

IF dot = 0 THEN
  baseName = fileName.
ELSE
  ASSIGN
    extension = SUBSTRING(fileName,dot + 1,
                  LENGTH(fileName,"CHARACTER":u) - dot,"CHARACTER":u)
    baseName  = SUBSTRING(fileName,1,dot - 1,"CHARACTER":u)
    .

/* Look for the source first. If it isn't there then look for a .r of the
 * same name. */

IF extension <> "r":u THEN DO:
  qbf-s = SEARCH(fileName).
  IF qbf-s <> ? THEN RETURN.

  /*
  * The baseName doesn't exist. If there was no extension add a .p
  * and look for the file
  */
  qbf-s = SEARCH(baseName + ".p":u).

  IF qbf-s <> ? THEN RETURN.
END.

qbf-s = SEARCH(baseName + ".r":u).

/* _ssearch.p - end of file */