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Re: EXIT in a REPEAT loop
Hi Lynn,
Thanks for reporting this problem -- we have not encountered it before. You
example (and Andrew's follow up) illustrate the need for more controls related
to the EXIT command:
EXIT/script -- exit from current script
EXIT/loop -- break from current repeat loop (or future FOREACH)
EXIT/prompt -- return to command prompt, regardless of current activity
EXIT/program -- terminate Ferret (the current "EXIT/command_file" to be
denegrated as misleading)
Comments or suggestions?
- steve
P.S. This should be a quick fix -- we'll try to get it in soon.
==============================================
Lynn deWitt wrote:
> Hi all,
> The Ferret users manual states the following about the "EXIT" command
>
> "When executed within a command file this command terminates the
> execution of the command file and returns control to the level in
> Ferret that executed the file (the user or another command file). "
>
> We've recently found that this works great unless EXIT is placed
> within a REPEAT loop. Here's an example: The command files test1
> and test2 exit back to test.jnl, but test3.jnl exits all the way back
> to the command prompt without executing test1 the second time. Am I
> missing something or is this a "feature"? Lynn
>
> test.jnl:
>
> let a=1
> let b=2
> let c=3
> go test1 a b c
> go test2 a b c
> go test3 a b c
> go test1 a b c
>
> where
>
> test1.jnl is
>
> list $1,$2,$3
> list $1
> exit
> list $2
> list $3
>
> test2.jnl is
>
> repeat/i=1:3 (list $1,$2,$3)
> list $1
> exit
> list $2
> list $3
>
> and test3.jnl is
> repeat/i=1:3 (list $1,$2,$3; exit)
> list $1
> exit
> list $2
> list $3
>
> the output is:
> %ferret
> NOAA/PMEL TMAP
> Program FERRET (GUI)
> Version 4.91 - 05/19/98
> 18-Jul-01 12:50
>
> yes? go test
> let a=1
> let b=2
> let c=3
> go test1 a b c
> list $1,$2,$3
> !-> list a,b,c
> Column 1: A is 1
> Column 2: B is 2
> Column 3: C is 3
> A B C
> I / *: 1.000 2.000 3.000
> list $1
> !-> list a
> 1
> 1.000
> exit
> go test2 a b c
> repeat/i=1:3 (list $1,$2,$3)
> !-> repeat/i=1:3 (list a,b,c)
> !-> REPEAT: I=1
> Column 1: A is 1
> Column 2: B is 2
> Column 3: C is 3
> A B C
> I / *: 1.000 2.000 3.000
> !-> REPEAT: I=2
> Column 1: A is 1
> Column 2: B is 2
> Column 3: C is 3
> A B C
> I / *: 1.000 2.000 3.000
> !-> REPEAT: I=3
> Column 1: A is 1
> Column 2: B is 2
> Column 3: C is 3
> A B C
> I / *: 1.000 2.000 3.000
> list $1
> !-> list a
> 1
> 1.000
> exit
> go test3 a b c
> repeat/i=1:3 (list $1,$2,$3; exit)
> !-> repeat/i=1:3 (list a,b,c; exit)
> !-> REPEAT: I=1
> Column 1: A is 1
> Column 2: B is 2
> Column 3: C is 3
> A B C
> I / *: 1.000 2.000 3.000
> %(exited all the way out of ferret back to the command prompt)
> --------------------------------------------
> Lynn deWitt
>
> ldewitt@pfeg.noaa.gov
>
> Pacific Fisheries Environmental Laboratories
> 1352 Lighthouse Avenue
> Pacific Grove, CA 93950-2097
> (831)-648-9036
--
Steve Hankin
NOAA/PMEL, 7600 Sand Point Way NE, Seattle, WA 98115-0070
ph. (206) 526-6080 -- FAX (206) 526-6744
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