IT13948: DFDL ESCAPE CHARACTER GETTING ESCAPED

APAR status

• Closed as program error.

Error description

• The user has an EDI document where they have defined a
  ? (question mark) as an escape character and ' (single
  quote) as a segment separator and this is being parsed to
  DFDL and the resulting data stored in a queue. They find that
  when they subsequently read the contents of the queue, an
  escaped character which looked like ?' becomes ??' and this
  triggers a DFDL parsing error.
  
  For example :
  
  Original input file:
  
  FTX+AAA+++CARPENTERS?' SQUARE 800   X380MM W/O MARK. HOLES'
  
  After writing it back to disk:
  
  FTX+AAA+++CARPENTERS??' SQUARE 800   X380MM W/O MARK. HOLES'
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of IBM Integration Bus V9 and V10 who are using DFDL
  schemas for EDIFACT and having escape scheme that has a char in
  the extraEscapedChars property which is the first char in an
  in-scope multi-char delimiter.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  The problem is triggered by the space that follows the single
  quote in the input data. The end-of-segment delimiter is '%WSP*;
  (single quote plus zero or more white space). The single quote +
  space in the data matches the delimiter, so the escape char ? is
  applied. However the single quote also appears in the list of
  extra characters to escape (the extraEscapedChars property of
  the escape scheme). To prevent double application of the escape
  char due to extraEscapedChars, a list is kept of any chars that
  have been escaped and a check is made against the list.  The bug
  is that the list contains an entry for single quote + space, but
  the check uses the single quote and an exact match.
  

Problem conclusion

• The product now parses the EDI document correctly when there are
  escape characters.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v9.0       9.0.0.6
  v10.0      10.0.0.5
  
  The latest available maintenance can be obtained from:
  http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041
  
  If the maintenance level is not yet available,information on
  its planned availability can be found on:
  http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
  ---------------------------------------------------------------
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  IT13883

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  INTEGRATION BUS

• Fixed component ID

  5724J0530

Applicable component levels

• R900 PSY

     UP