17 lines
376 B
Awk
17 lines
376 B
Awk
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BEGIN { W = 14 }
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{
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for (i=1; i<=length($1); i++) {
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window = substr($1,i,W)
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# compare each char of window to all char of window
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S = 0 # to count match
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for (j=1; j<=W; j++) {
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for (k=j; k<=W; k++) {
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S+= (substr(window,j,1) == substr(window,k,1)) ? 1 : 0
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}
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}
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if (S == W) { # if each char match only with itsef
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print i + W - 1
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next # finish
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}
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}
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}
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