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Command Reference >
Temporarily restrict editing to between point and mark.
This command temporarily restricts your access to the current buffer.
Point can only vary between the values point and mark had when you
invoked narrow-to-region. The commands that go to the beginning and
end of the buffer will instead go to the beginning and end of this
region. Searches will only operate within the region. However, the
commands that write the buffer to a file will write the entire buffer,
not just the constricted region. See also the widen-buffer
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