Zsh Mailing List Archive
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Re: bracketed paste - chopping trailing newlines
On Aug 31, 5:47am, Daniel Shahaf wrote:
} So, to clarify, you are proposing:
} - A trailing newline will be stripped if preceded by a non-newline and
} RBUFFER is not empty...
I think stripped if RBUFFER *is* empty, rather than not, because if
RBUFFER is left sitting there not empty then it's obvious that the
paste did not result in a command line being accepted.
} - but will be re-added if immediately followed by another paste.
} I don't like the sound of this, for several reasons:
} - The second clause constitutes state: <paste>f<backspace><paste> and
} <paste><paste> behave differently. I think state should be minimized.
} As I've stated in other threads, my preferred option is to simply never
} munge the user data at all, to minimize surprising behaviour and
} maximize compatibility with other places that accept pastes.
Of course the problem is that "least surprise" for a current user of zsh
is for the newlines to be accept-line, whereas for a person expecting
the behavior of a text editor the newlines should just be inserted.
My suggestion of accept-line for a final newline only when RBUFFER is
empty was meant as the least objectionable hybrid of the two.
} The problem of user not realizing the command hasn't started to run
} could be solved by having zle_highlight=(paste:...) and/or a 'zle -M'
} message by default.
On further reflection I don't think highlighting the paste is sufficient
to solve this. Yes, it lets you know that a paste has occurred, but it
doesn't help with realizing that a paste doesn't result in accept-line
if you aren't already familiar with that.
} We could even make <accept-line> strip the final newline for cosmetic
} reasons if it had been inserted by a paste and is syntactically
I find myself ambivalent about that.
} Is there any other place accepting pastes that removes the final
} newline? Everywhere I can think of just pastes the final newline if it
} was part of the copied text.
This is also considered by my hybrid suggestion -- the newline is not
removed; it is part of the paste. It just means something different at
the end of the line (it means what a newline usually means at the end
of a line).
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