RE: Removing punctuation (not using arrays)

Jon:

I wondered if anyone would mention strtok(), very handy function. I'd been 
looking at using it to parse strings for embedded quotes.

First thought was to wrap each returned token in quotes and add that result to 
a result string rebuilding it token by token. But I quickly discarded that 
thought because strtok() apparently skips consecutive delimiters making it 
unsuitable when the original string contains consecutive quotes. Too bad 
because it could make a nice, straightforward procedure otherwise.

...Unless you know how to circumvent that behavior?

Tom Liotta

rpg400-l-request@midrange.com wrote:

>   7. Removing punctuation (not using arrays) (Jon Paris)
>
>I have a routine that uses the C function strtok to perform exactly this
>task.  This is just the "raw" code - I would wrap it as a subprocedure but
>it works nicely.  It is not too long so I will include it here.
>
>D Token@          S               *
>D Delims          C                   '.,:;"  '         // put whatever
>characters you want eliminated here
>D EditedField     S            100a   Varying
>   :                  :                :
>  EditedField = '';    // Set work field to null
>
>  Token@ = StrTok( Address : Delims );     // Get first token
>  If Token@ <> *Null;
>    EditedField = %Str(Token@);
>
>    DoW Token@ <> *Null;         // Process second & subsequent tokens
>      Token@ = StrTok( *Null : Delims );
>      If Token@ <> *Null;
>        EditedField = EditedField + Space + %Str(Token@);
>      EndIf;
>    EndDo;
>  EndIf;
>
>  Address = EditedField;  // Copy edited field back to original
>
>This is the prototype I use for strtok.  You'll need to specify bind dir
>QC2LE on the compile.  If you want to understand how it works there is a
>similar example in the RPG Redbook.
>
> D StrTok          Pr              *   ExtProc('strtok')
> D  String@                        *   Value Options(*String)
> D  Delimiters@                    *   Value Options(*String)

-- 
-- 
Tom Liotta
The PowerTech Group, Inc.
19426 68th Avenue South
Kent, WA 98032
Phone  253-872-7788 x313
Fax    253-872-7904
http://www.powertechgroup.com


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