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Mickeydusaor
Active User
Joined: 24 May 2006
Posts: 258
Location: Salem, Oregon
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I can not get a substitution variable to work using the POS command
and have seen nothing in the manulas telling me that I can not do this.
Has anyone done this..????? It works fine with other commands.
genlvl = '&gen040'||'='
genver = pos('"genlvl"',text) |
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daveporcelan
Active Member
Joined: 01 Dec 2006
Posts: 792
Location: Pennsylvania
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I would run the exec with a TRACE(I) just before the code in question.
A TRACE(0) just afterwards will stop the clutter.
There looks like lots of quotes (and double quotes) confusing things. |
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enrico-sorichetti
Superior Member
Joined: 14 Mar 2007
Posts: 10888
Location: italy
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no reason not to work if coded correctly,
variable needles and haystacks are most common in non basic REXX parsing!
rather than debugging Your code ( clear as mud, I dare to say  )
here is working snippet , which correctly return 6
| Code: |
000001 /*REXX - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
000002 /* */
000003 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
000004 Trace "O"
000005
000006 Parse Source _sys _how _cmd .
000007
000008 text = ".....&GEN040=..."
000009 genlvl = '&GEN040' || '='
000010 say pos(genlvl,text)
000011
000012 Exit 0
000013
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tested and working
given the scarce info provided that' s the best I can do |
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Pedro
Global Moderator
Joined: 01 Sep 2006
Posts: 2594
Location: Silicon Valley
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| Quote: |
| I can not get a substitution variable to work |
Are you expecting the ampersand to resolve and substitute the variable?
It seems like you want this to work:
| Code: |
gen040 = 'testlvl'
genlvl = '&gen040'||'='
genver = pos('"genlvl"',text) |
If you want it to be treated as a variable, do not use quotes:
| Code: |
gen040 = 'testlvl'
genlvl = gen040 ||'='
genver = pos('"genlvl"',text) |
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Mickeydusaor
Active User
Joined: 24 May 2006
Posts: 258
Location: Salem, Oregon
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GENVER = GENIDS||'='
"&GEN040="
517 *-* say 'text='text
>>> "text=//WSS820P1 PROC GEN040='+1',
"
text=//WSS820P1 PROC GEN040='+1',
518 *-* GENBEG = POS(GENVER,TEXT)
>>> "0"
As you can see this did not return the position 0, this is
the only time I have had problems using the POS command. |
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enrico-sorichetti
Superior Member
Joined: 14 Mar 2007
Posts: 10888
Location: italy
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a zero position is the proper result when searching for ( needle )
and the strings being searched ( haystack) does not contain it
as per
| Code: |
| text=//WSS820P1 PROC GEN040='+1', |
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Mickeydusaor
Active User
Joined: 24 May 2006
Posts: 258
Location: Salem, Oregon
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enrico,
You are so right.... and I am blind as a BAT and just as tired, as I said
I have never had any trouble using the pos and substitution before, so
I was trying the different combo's with command. It was not until your
reply I see just what was wrong and what I was checking for......
Thanks once again from this tired old dog.............  |
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enrico-sorichetti
Superior Member
Joined: 14 Mar 2007
Posts: 10888
Location: italy
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don' t worry, it happens!
and what' s wrong with old dogs anyway...
I bet I am older than You |
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Mickeydusaor
Active User
Joined: 24 May 2006
Posts: 258
Location: Salem, Oregon
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| I have been doing this for 42 years just to give you and Idea of my age |
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