These functions move point based on a count of characters.
goto-char is the fundamental primitive; the other functions use
that.
This function sets point in the current buffer to the value position.
If narrowing is in effect, position still counts from the
beginning of the buffer, but point cannot go outside the accessible
portion. If position is out of range, goto-char moves
point to the beginning or the end of the accessible portion.
When this function is called interactively, position is the numeric prefix argument, if provided; otherwise it is read from the minibuffer.
goto-char returns position.
This function moves point count characters forward, towards the
end of the buffer (or backward, towards the beginning of the buffer, if
count is negative). If count is nil, the default
is 1.
If this attempts to move past the beginning or end of the buffer (or
the limits of the accessible portion, when narrowing is in effect), it
signals an error with error symbol beginning-of-buffer or
end-of-buffer.
In an interactive call, count is the numeric prefix argument.
This is just like forward-char except that it moves
in the opposite direction.