calc: Killing From Stack
15.1 Killing from the Stack
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“Kill” commands are Emacs commands that insert text into the “kill
ring,” from which it can later be “yanked” by a ‘C-y’ command. Three
common kill commands in normal Emacs are ‘C-k’, which kills one line,
‘C-w’, which kills the region between mark and point, and ‘M-w’, which
puts the region into the kill ring without actually deleting it. All of
these commands work in the Calculator, too, although in the Calculator
they operate on whole stack entries, so they “round up” the specified
region to encompass full lines. (To copy only parts of lines, the
‘M-C-w’ command in the Calculator will copy the region to the kill ring
without any “rounding up”, just like the ‘M-w’ command in normal Emacs.)
Also, ‘M-k’ has been provided to complete the set; it puts the current
line into the kill ring without deleting anything.
The kill commands are unusual in that they pay attention to the
location of the cursor in the Calculator buffer. If the cursor is on or
below the bottom line, the kill commands operate on the top of the
stack. Otherwise, they operate on whatever stack element the cursor is
on. The text is copied into the kill ring exactly as it appears on the
screen, including line numbers if they are enabled.
A numeric prefix argument to ‘C-k’ or ‘M-k’ affects the number of
lines killed. A positive argument kills the current line and ‘n-1’
lines below it. A negative argument kills the ‘-n’ lines above the
current line. Again this mirrors the behavior of the standard Emacs
‘C-k’ command. Although a whole line is always deleted, ‘C-k’ with no
argument copies only the number itself into the kill ring, whereas ‘C-k’
with a prefix argument of 1 copies the number with its trailing newline.
Info Catalog
calc: Kill and Yank
calc: Kill and Yank
calc: Yanking Into Stack