Re: Regular Expressions: DFSORT, ISPF: "$","^"

2024-04-20 Thread Paul Gilmartin 
On Sun, 21 Apr 2024 04:03:48 +, Sri Hari Kolusu wrote:
>...
>I know you are detail-attentive, so I would add it to the next pub refresh, 
>but it only goes into 3.1 (may be V2R5 but not sure).
>
>^
>The caret symbol matches the beginning the string.
>
>$
>The dollar symbol matches the end of the string.
>
Thanks.  That's better.  But rather than replicating the regex specification
foe each UNIX Command  and each utility, with errors propagating and
needing redundant corrections, it would be better if each had hyperlinks
to a single, thorough IBM specification comparable to the Open Group's

9. Regular Expressions

But, Conway's Law  ...

(In vain hope, I perused Appendix C of the Unix Command Ref.  SA23-2280-60
only to find two nearly identical copies of a woefully inadequate 
specification.)

-- 
Thanks again,
gil



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Re: Regular Expressions: DFSORT, ISPF: "$","^"

2024-04-20 Thread Sri Hari Kolusu 
Paul,

DFSORT does indeed support "^" and "&" for the begin and end.

https://www.ibm.com/docs/en/zos/2.4.0?topic=statement-regular-expressions

If scroll down a bit in the above link, we do the examples.

^ibm
Matches records beginning with "ibm"
ibm$
Matches records ending with "ibm"
^ibm$
Matches records with exactly "ibm"

I know you are detail-attentive, so I would add it to the next pub refresh, but 
it only goes into 3.1 (may be V2R5 but not sure).

^
The caret symbol matches the beginning the string.

$
The dollar symbol matches the end of the string.




Would that work?

Thanks,
Kolusu
DFSORT Development
IBM Corporation

-Original Message-
From: IBM Mainframe Discussion List  On Behalf Of 
Paul Gilmartin
Sent: Saturday, April 20, 2024 7:47 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] Regular Expressions: DFSORT, ISPF: "$","^"

The description of regular expressions for DFSORT:
<https://www.ibm.com/docs/en/zos/3.1.0?topic=statement-regular-expressions>
mentions "$" to match the end of a string, but not "^" to match the beginning.

The description of regular expressions for ISPF:
<https://www.ibm.com/docs/en/zos/3.1.0?topic=string-regular-expressions-string1>
mentions neither "^" nor "$".

Are these omissions intentional?

--
gil

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Re: Regular Expressions: DFSORT, ISPF: "$","^"

2024-04-20 Thread Paul Gilmartin 
On Sat, 20 Apr 2024 19:41:49 +, Farley, Peter wrote:

>For the ISPF case, I think the document writers think that they have covered 
>everything about the accepted regular expression syntax by stating up front on 
>that page:
>
>“ISPF uses the IBM® C regcomp() — Compile regular expression and regexec() — 
>Execute compiled regular expression functions to compile and execute a regular 
>expression . . .”
> 
If the list of syntactic rules is incomplete, they should be clearly
characterized as examples.

Also: 
A regular expression in a FIND, CHANGE, or EXCLUDE command allows
you to search for a string matching a basic or extended regular expression.

"basic or extended" -- it fails to indicate how the user can indicate whether
a basic or extended regular expression is intended.

>From:  Paul Gilmartin
>Sent: Saturday, April 20, 2024 10:47 AM
>
>Are these omissions intentional?

-- 
gil

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Re: Regular Expressions: DFSORT, ISPF: "$","^"

2024-04-20 Thread Farley, Peter 
For the ISPF case, I think the document writers think that they have covered 
everything about the accepted regular expression syntax by stating up front on 
that page:

“ISPF uses the IBM® C regcomp() — Compile regular expression and regexec() — 
Execute compiled regular expression functions to compile and execute a regular 
expression . . .”

We will have to wait for Sri Kolusu to answer for the DFSORT case.

Peter

From: IBM Mainframe Discussion List  On Behalf Of 
Paul Gilmartin
Sent: Saturday, April 20, 2024 10:47 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Regular Expressions: DFSORT, ISPF: "$","^"


The description of regular expressions for DFSORT:

<https://urldefense.com/v3/__https://www.ibm.com/docs/en/zos/3.1.0?topic=statement-regular-expressions__;!!Ebr-cpPeAnfNniQ8HSAI-g_K5b7VKg!ISjCqr_3erWLCvri7EDUGaDALI5JZbBrCn-8xtm7byCaYpcu4YuqmgB5e79Zne4jTdkWsnfOsOiP9tpZPlNCZywa8UhWH-zyKo8savVm$<https://urldefense.com/v3/__https:/www.ibm.com/docs/en/zos/3.1.0?topic=statement-regular-expressions__;!!Ebr-cpPeAnfNniQ8HSAI-g_K5b7VKg!ISjCqr_3erWLCvri7EDUGaDALI5JZbBrCn-8xtm7byCaYpcu4YuqmgB5e79Zne4jTdkWsnfOsOiP9tpZPlNCZywa8UhWH-zyKo8savVm$>>

mentions "$" to match the end of a string, but not "^" to match the beginning.



The description of regular expressions for ISPF:

<https://urldefense.com/v3/__https://www.ibm.com/docs/en/zos/3.1.0?topic=string-regular-expressions-string1__;!!Ebr-cpPeAnfNniQ8HSAI-g_K5b7VKg!ISjCqr_3erWLCvri7EDUGaDALI5JZbBrCn-8xtm7byCaYpcu4YuqmgB5e79Zne4jTdkWsnfOsOiP9tpZPlNCZywa8UhWH-zyKl30sRdu$<https://urldefense.com/v3/__https:/www.ibm.com/docs/en/zos/3.1.0?topic=string-regular-expressions-string1__;!!Ebr-cpPeAnfNniQ8HSAI-g_K5b7VKg!ISjCqr_3erWLCvri7EDUGaDALI5JZbBrCn-8xtm7byCaYpcu4YuqmgB5e79Zne4jTdkWsnfOsOiP9tpZPlNCZywa8UhWH-zyKl30sRdu$>>

mentions neither "^" nor "$".



Are these omissions intentional?



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Regular Expressions: DFSORT, ISPF: "$","^"

2024-04-20 Thread Paul Gilmartin 
The description of regular expressions for DFSORT:

mentions "$" to match the end of a string, but not "^" to match the beginning.

The description of regular expressions for ISPF:

mentions neither "^" nor "$".

Are these omissions intentional?

-- 
gil

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