Re: sed

[Akim Demaille]

| I found what appears to be a bug in sed version 3.02
| When you replace a regexp beginning with ^, it always thinks
| a replacement has been made even if one hasn't.  
| For example in a script
| 
| s/^{}/()/
| t startpair
| ..
| :startpair
| 
| it will always jump to the label startpair
| whether or not the pattern space starts with {}

I don't observe this:

/tmp % (echo "()" && echo "{}") | sed 's/^{}/()/
t startpair
s/.*/failed/
:startpair
s/^/=> /'
=> failed
=> ()

/tmp % sed --version
GNU sed version 3.02

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