WORDPOS

[João Luís Matos Carvalho (DSI)]

Hello list,

The WORDPOS function return the Word number in a string. My question is that exists or anyone knows a function that returns a substring position.

An Example:

For the following string "XPTO DDSSSD TTG000124", is there a function that returns the position of the substring "TTG". In this case position 13.

Thank´s in advance

Atenciosamente,
João Carvalho

DSI-DSTS-DST-TAG
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P Antes de imprimir este e-mail pense bem se tem mesmo que o fazer. Há cada vez menos árvores

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[Grant Ward Able]

You can use POS instead of WORDPOS.

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Note: Any opinion expressed is my own






João Luís Matos Carvalho (DSI) <joao.mato...@CAIXASEGUROS.PT>
Sent by: TSO REXX Discussion List <TSO-...@VM.MARIST.EDU>
13/08/2008 11:56
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[TSO-REXX] WORDPOS

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[Lindy Mayfield]

I just happened to have the TSO docs open.

Try POS
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IKJ4A370/4.3.44

Gotta love that Needle in a Haystack. You'll remember it till your dying days.

Say POS("TTG","XPTO DDSSSD TTG000124")

13

[Stocker, Herman]

Xx = POS("TTG") xx will have the position

Regards,
Herman Stocker
<----- snip on -------->

The WORDPOS function return the Word number in a string. My question is that
exists or anyone knows a function that returns a substring position.

An Example:

For the following string "XPTO DDSSSD TTG000124", is there a function that
returns the position of the substring "TTG". In this case position 13.

<------ snip off ------->

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[João Luís Matos Carvalho (DSI)]

Thank's list for the help !

Atenciosamente,
João Carvalho

DSI-DSTS-DST-TAG
* - mailto:joao.mato...@caixaseguros.pt

"A mente é como um pára-quedas, só funciona se estiver aberta"
(Thomas Dewar)

P Antes de imprimir este e-mail pense bem se tem mesmo que o fazer. Há cada vez menos árvores

[Cruz, Robert]

There is an important distinction here which has not been pointed out.

If you want the word-number of a word (or sequence of words) in a blank-delimited list of words, use WORDPOS.
For example: WORDPOS( 'JOHNS', 'JOHNSON JOHNS' ) returns 2

If you want the character position of a string of characters within another string, use POS.
For example: POS( 'JOHNS', 'JOHNSON JOHNS' ) returns 1

In the example above, POS( 'JOHNS', 'JOHNSON JOHNS' ) returns 1, which is NOT the position of the *word* "JOHNS". There are other important differences as well. For example:
WORDPOS( 'JACK BLACK', 'JIM JOHN JACK BLACK WHITE' ) returns 3, whereas:
POS( 'JACK BLACK', 'JIM JOHN JACK BLACK WHITE' ) returns 0

If you want the *character* position of a blank-delmited *word* (or sequence of words), you must use:
WORDINDEX( haystack, WORDPOS( needle, haystack ) )
For example: WORDINDEX( 'JOHNSON JOHNS', WORDPOS( 'JOHNS', 'JOHNSON JOHNS' ) ) returns 9, and
haystack = 'JIM JOHN JACK BLACK WHITE'
needle = 'JACK BLACK'
WORDINDEX( haystack, WORDPOS( needle, haystack ) ) returns 12

WORDINDEX is a little-used function, but there is no simple way to replace it.

BTW, the INDEX and FIND functions are no longer recommended; use POS and WORDPOS instead (the INDEX and FIND functions are non-SAA and not portable).

-----Original Message-----
From: TSO REXX Discussion List [mailto:TSO-...@VM.MARIST.EDU] On Behalf Of João Luís Matos Carvalho (DSI)

Atenciosamente,
João Carvalho

An Example:

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[Hamilton, Robert L]

Kilowatt software has a good REXX tutorial
bobh

[Bob Bridges]

Absolutely! I now judge other function documentation by that standard.

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-----Original Message-----
From: Lindy Mayfield
Sent: Wednesday, August 13, 2008 07:03

I just happened to have the TSO docs open. Try POS
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IKJ4A370/4.3.44

Gotta love that Needle in a Haystack. You'll remember it till your dying
days.

-----Original Message-----
From: João Luís Matos Carvalho (DSI)
Sent: 13. elokuuta 2008 13:57

The WORDPOS function return the Word number in a string. My question is

whether anyone knows of a function that returns a substring position.

An example: For the string "XPTO DDSSSD TTG000124", is there a function
that returns the position of the substring "TTG"? in this case position 13?