| 1 | #Date: Tue, 18 May 1999 12:48:07 -0500 (CDT)
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| 2 | #From: Darrel Hankerson <[email protected]>
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| 3 | #To: [email protected]
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| 4 | #Subject: [[email protected]: RE: Getline bug in Gawk 3.0.3]
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| 5 | #
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| 6 | #Here's a reply that came directly to me. --darrel
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| 7 | #
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| 8 | #
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| 9 | #From: [email protected]
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| 10 | #To: [email protected]
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| 11 | #Subject: RE: Getline bug in Gawk 3.0.3
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| 12 | #Date: Tue, 18 May 1999 18:42:28 +0100
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| 13 | #
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| 14 | #Sorry that was me getting carried away and cut and pasting the wrong thing
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| 15 | #into my email
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| 16 | #
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| 17 | #The real problem seems to be that :
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| 18 | #BEGIN {
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| 19 | #for (i=1;i<10;i++){
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| 20 | # while((getline < "hello.txt")>0){
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| 21 | # print $0
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| 22 | # }
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| 23 | # close("hello.txt")
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| 24 | # }
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| 25 | #}
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| 26 | #works (printing the contents of hello.txt 9 times), where as:-
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| 27 | #
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| 28 | #END{
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| 29 | #for (i=1;i<10;i++){
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| 30 | # while((getline < "hello.txt")>0){
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| 31 | # print $0
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| 32 | # }
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| 33 | # close("hello.txt")
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| 34 | # }
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| 35 | #}
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| 36 | #
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| 37 | #doesn't, (it prints out hello.txt once followed by the iteration numbers
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| 38 | #from 1 to 9).
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| 39 | #The only difference is that one is in the BEGIN block and one in the END
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| 40 | #block.
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| 41 | #
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| 42 | #Sorry about the first post, I'm not a bad awk programmer, just a tired one
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| 43 | #:)
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| 44 | #
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| 45 | #chris
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| 46 | #
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| 47 | #> -----Original Message-----
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| 48 | #> From: Darrel Hankerson [SMTP:[email protected]]
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| 49 | #> Sent: 18 May 1999 18:28
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| 50 | #> To: [email protected]
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| 51 | #> Subject: Re: Getline bug in Gawk 3.0.3
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| 52 | #>
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| 53 | #> Could you clarify? Your first script uses an apparently undefined
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| 54 | #> variable f.
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| 55 | #>
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| 56 | #>
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| 57 | #> [email protected] writes:
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| 58 | #>
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| 59 | #> BEGIN {
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| 60 | #> for (i=1;i<10;i++){
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| 61 | #> while((getline < "hello.txt")>0){
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| 62 | #> print $0
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| 63 | #> }
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| 64 | #> close(f)
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| 65 | #> }
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| 66 | #> }
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| 67 | #>
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| 68 | #> refuses to close the file and so prints the contents of hello.txt just
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| 69 | #> once.
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| 70 | #> However:-
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| 71 | #>
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| 72 | #> BEGIN {
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| 73 | #> f="hello.txt"
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| 74 | #> for (i=1;i<10;i++){
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| 75 | #> while((getline < f)>0){
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| 76 | #> print $0
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| 77 | #> }
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| 78 | #> close(f)
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| 79 | #> }
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| 80 | #> }
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| 81 | #>
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| 82 | #> works as advertised (printing the contents of hello.txt 9 times)
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| 83 | #> It seems like a bug in the close statement.
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| 84 | #>
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| 85 | #> --
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| 86 | #> --Darrel Hankerson [email protected]
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| 87 | #
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| 88 |
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| 89 | # srcdir is assigned on command line --- ADR
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| 90 | END {
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| 91 | f = srcdir "/redfilnm.in"
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| 92 | for (i = 1; i < 10; i++){
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| 93 | while((getline < f) > 0){
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| 94 | print $0
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| 95 | }
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| 96 | close(f)
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| 97 | }
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| 98 | }
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