* Re: why (error "Transposed region has length 0") ?
[not found] <20020608130129.GA705978@bruegel.RZ.TU-Ilmenau.DE>
@ 2002-06-09 15:19 ` Richard Stallman
0 siblings, 0 replies; only message in thread
From: Richard Stallman @ 2002-06-09 15:19 UTC (permalink / raw)
Cc: emacs-devel
The story of transpose-regions is peculiar. It was meant to be used
in transpose-subr, but we never put it into service there because
nobody was ever convinced that it really worked correctly in all
cases (it is rather a complex thing to check) and nobody felt like debugging whatever problems it might have.
The function is used in just one Emacs package, hanoi.el. I geuss
that has given it a certain amount of testing, but not very broadly.
The main motivation for transpose-regions was to reduce memory usage,
sinceit avoids copying both regions into strings. Nowadays that
optimization may not be worth the trouble. We could simply delete the
current transpose-region and use 6 lines of Lisp code (see
transpose-subr-1) instead.
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[not found] <20020608130129.GA705978@bruegel.RZ.TU-Ilmenau.DE>
2002-06-09 15:19 ` why (error "Transposed region has length 0") ? Richard Stallman
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