/*********************************************************************
* 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:                                                      *
*                                                                    *
*********************************************************************/
/***************************************************************************\
*****************************************************************************
**          Program:  tagparse.p
**
**           Author:  
**
**      Description:  The purpose of this procedure is to parse 'fieldDef'
**                    for 'paramName'.
**
**                    'FieldDef' contains the tag definition.
**                    'ParamName' is the parameter/token that is to be
**                    parsed for in 'fieldDef so that its value can be
**                    returned.
**
**                    *  example WSTAG tag stored in 'fieldDef':
**                     <!--WSTAG NAME=CustTable FILE=custtbl.p-->
**
**                    *  example WSMSG  tag stored in 'fieldDef':
**                     <!--WSMSG NAME=all VALUE=Application Messages-->
**
**                    *  parameters/tokens in the tags:  
**                     NAME, TYPE, FILE, VALUE 
**
**                    This file is called by web/support/tagrun.p
**                                     -and-
**                    This file is called by web/support/webmsg.p
**
**  Input Parameters: fieldDef          custom tag definition from HTML file
**                    paramName         parameter/token to parse custom tag for
**
** Output Parameters: paramValue        value of parameter/token in tag
*****************************************************************************
\***************************************************************************/


{src/web/method/cgidefs.i}


/* INPUT PARAMETERS */
DEFINE INPUT  PARAMETER fieldDef        AS CHARACTER                 NO-UNDO.
DEFINE INPUT  PARAMETER paramName       AS CHARACTER                 NO-UNDO.

/* OUTPUT PARAMETERS */
DEFINE OUTPUT PARAMETER paramValue      AS CHARACTER                 NO-UNDO.


/* LOCAL VARIABLES */
DEFINE VARIABLE         paramPos        AS INTEGER INITIAL 0         NO-UNDO.
DEFINE VARIABLE         delimPos        AS INTEGER INITIAL 0         NO-UNDO.  

DEFINE VARIABLE         searchString    AS CHARACTER FORMAT "x(32)"  NO-UNDO.
DEFINE VARIABLE         tempString      AS CHARACTER FORMAT "x(50)"  NO-UNDO.


/* Determine what token to parse fieldDef for */ 
case paramName:
  WHEN "name" THEN 
    searchString = "NAME=".
  WHEN "type" THEN
    searchString = "TYPE=".
  WHEN "file" THEN
    searchString = "FILE=".
  WHEN "value" THEN 
    searchString = "VALUE=".
END CASE.


/* Get the token value out of the custom tag.  Be sure to */
/* handle a custom tag where the token value may be a quoted string */
ASSIGN 
  paramPos    = INDEX(fieldDef, searchString)
  tempString = ""
  paramValue = ""
.

IF (paramPos <> 0) THEN
DO:
  ASSIGN tempString  = SUBSTRING(fieldDef, paramPos + LENGTH(searchString), -1,
                                 "CHARACTER":U). 

  IF (tempString BEGINS '"') THEN 
  DO:       
    delimPos       = INDEX(tempString, '" ':U).
    IF (delimPos <> 0) THEN
      paramValue   = SUBSTRING(tempString, 2, delimPos - 2, "CHARACTER":U).
    ELSE
    DO:
      delimPos     = INDEX(tempString, '--':U).
      IF (delimPos <> 0) THEN
        paramValue   = SUBSTRING(tempString, 2, delimPos - 3, "CHARACTER":U).
    END.
  END.
  ELSE
  DO:
    delimPos       = INDEX(tempString, ' ':U).
    IF (delimPos <> 0) THEN
      paramValue   = SUBSTRING(tempString, 1, delimPos - 1, "CHARACTER":U).
    ELSE
    DO:
      delimPos     = INDEX(tempString, '--':U).
      IF (delimPos <> 0) THEN
        paramValue   = SUBSTRING(tempString, 1, delimPos - 1, "CHARACTER":U).
    END.
  END.
END.