The current sed script does not allow a * character in comments. ---------- Post updated at 03:34 AM ---------- Previous update was at 03:28 AM ----------
I noticed the same thing. But I didn't want to be too much of a stickler. Thank you for pointing out the defect. /* */ comments are problematic to deal with.
The current sed script does not allow a * character in comments. ---------- Post updated at 03:34 AM ---------- Previous update was at 03:28 AM ----------
But
is even worse, because of the "greedy" .*
I don't know to which script you're referring when you say "current sed script". The OP's sed doesn't handle comments at all. Mine does and it allows * in the comment.
You are correct in that the greedy .* will cause problems with multiple comment closing sequences, */, on one line. Thank you for pointing that out, since I neglected to mention it. However, your two comments on a line scenario is extremely unlikely. More likely, I suspect, would be a collision with a string literal.
As I said in my first post, it works with the sample data and, if anything more complicated is needed, perhaps a tool that understands the language should be used. A possible workaround would disallow the * in comments by changing .* to [^*]*. A better solution is to use a tool which supports non-greedy quantifiers, such as perl's .*?.
Even if non-greedy quantifiers are used, the solution is still incomplete even for the simple, single-comment on a single line scenario: a string literal which looks like a comment would be nuked.
Regards,
Alister
---------- Post updated at 05:12 AM ---------- Previous update was at 05:10 AM ----------
Quote:
Originally Posted by hanson44
I noticed the same thing. But I didn't want to be too much of a stickler. Thank you for pointing out the defect. /* */ comments are problematic to deal with.
Hello,
I could not remove brackets with text contents
myfile:
Please remove the bracket with text
I wish to remove:
I tried:
sed 's/\//' myfile
It gives:
Please remove the bracket with text A1
I expect:
Please remove the bracket with text
Many thanks
Boris (2 Replies)
Trying to use sed to, in-place, remove specific text from a file. Since there are / in the text I use | to escape that character. Thank you :).
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