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Using FIND with a regular expression

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misi01
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Joined: 02 Dec 2002
Posts: 629
Topics: 176
Location: Stockholm, Sweden

Posted: Thu Apr 12, 2018 5:33 am Post subject: Using FIND with a regular expression

I must be doing something wrong, becuase I think I should be getting a hit, but I don't.
Assume I have a number of lines in my source containing

Code:

copy copybook

If I ensure the cursor is above these lines, shouldn't the following find the string ?

Quote:

find r'c.py'

or am I missing something ?

Assuming I get some help, I have a follow on question. Let's assume I want to find the following string (where the ? is any character)

Quote:

copy ?????aa.'

(note the trailing dot in the search string).
Since the dot is used as "any" character in regular expressions, can I indicate that the last trailing character is a dot and not just any character.

Update. Have asked support if I have the C runtime library allocated which is required for this to work.
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Michael

kolusu
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Joined: 26 Nov 2002
Posts: 12378
Topics: 75
Location: San Jose

Posted: Thu Apr 12, 2018 3:04 pm Post subject: Re: Using FIND with a regular expression

misi01 wrote:

I must be doing something wrong, becuase I think I should be getting a hit, but I don't.
Assume I have a number of lines in my source containing

Code:

copy copybook

If I ensure the cursor is above these lines, shouldn't the following find the string ?

Quote:

find r'c.py'

or am I missing something ?

misi01,

Yes that should have found Copy copybook

misi01 wrote:

Update. Have asked support if I have the C runtime library allocated which is required for this to work.

If you are running ispf 2.1 you should automatically be able to use regular expressions provided you are using one of the following code page listed here

https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.1.0/com.ibm.zos.v2r1.f54em00/useofr1.htm

[quote="misi01"]
Assuming I get some help, I have a follow on question. Let's assume I want to find the following string (where the ? is any character)

Quote:

copy ?????aa.'
(note the trailing dot in the search string).
Since the dot is used as "any" character in regular expressions, can I indicate that the last trailing character is a dot and not just any character.

lets you say have you his sample data

Code:

baa
ccaa
dddaa
eeeeaa
fffffaa
ggggggaa
1aa
22aa
33daa
4444aa
55555aa
666666aa

If you want find anything with a suffix off 'aa' and limit to a thru z for the characters preceding 'aa', then you issue the command

Code:

f r'[a-z]aa'

If you want to find anything with numerics then issue the following command

Code:

f r'[a-z]aa|[0-9]aa'

but if you want to narrow it down to have a minimum of 5 characters before the suffix 'aa' then issue the following command

Code:

f r'[a-z]{5}aa'

_________________
Kolusu
www.linkedin.com/in/kolusu

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