example, pressing the @key{TAB} key automatically indents the line the
cursor is on by the right amount. A command to properly indent the
code in a region is customarily bound to @kbd{M-C-\}. Indentation is
-designed so that you can see which elements of a list belongs to which
+designed so that you can see which elements of a list belong to which
list---elements of a sub-list are indented more than the elements of
the enclosing list.
Another way to think about @code{let} is that it is like a @code{setq}
that is temporary and local. The values set by @code{let} are
automatically undone when the @code{let} is finished. The setting
-only effects expressions that are inside the bounds of the @code{let}
+only affects expressions that are inside the bounds of the @code{let}
expression. In computer science jargon, we would say ``the binding of
a symbol is visible only in functions called in the @code{let} form;
in Emacs Lisp, scoping is dynamic, not lexical.''
Before looking at the code, let's consider what the function
definition has to contain: it must include an expression that makes
the function interactive so it can be called by typing @kbd{M-x
-beginning-of-buffer} or by typing a keychord such as @kbd{C-<}; it
+beginning-of-buffer} or by typing a keychord such as @kbd{M-<}; it
must include code to leave a mark at the original position in the
buffer; and it must include code to move the cursor to the beginning
of the buffer.
@cindex Asterisk for read-only buffer
@findex * @r{for read-only buffer}
-The asterisk is for the situation when the buffer is a read-only
-buffer---a buffer that cannot be modified. If @code{insert-buffer} is
-called on a buffer that is read-only, a message to this effect is
-printed in the echo area and the terminal may beep or blink at you;
-you will not be permitted to insert anything into current buffer. The
-asterisk does not need to be followed by a newline to separate it from
-the next argument.
+The asterisk is for the situation when the current buffer is a
+read-only buffer---a buffer that cannot be modified. If
+@code{insert-buffer} is called when the current buffer is read-only, a
+message to this effect is printed in the echo area and the terminal
+may beep or blink at you; you will not be permitted to insert anything
+into current buffer. The asterisk does not need to be followed by a
+newline to separate it from the next argument.
@node b for interactive, , Read-only buffer, insert-buffer interactive
@comment node-name, next, previous, up
@code{cons}. Find out what happens when you @code{cons} a list onto
itself. Replace the first element of the list of four birds with a
fish. Replace the rest of that list with a list of other fish.
+
@node Cutting & Storing Text, List Implementation, car cdr & cons, Top
@comment node-name, next, previous, up
@chapter Cutting and Storing Text
loops---takes the @sc{cdr} of the list---and binds the @sc{car} of
each shorter version of the list to the first of its arguments.
-@code{dotimes} loops a specific number of time: you specify the number.
+@code{dotimes} loops a specific number of times: you specify the number.
@menu
* dolist::
@findex defcustom
You can specify variables using @code{defcustom} so that you and
-others can then can use Emacs' @code{customize} feature to set their
+others can then use Emacs' @code{customize} feature to set their
values. (You cannot use @code{customize} to write function
definitions; but you can write @code{defuns} in your @file{.emacs}
file. Indeed, you can write any Lisp expression in your @file{.emacs}
The answers can be found by a quick test. When @code{(% -1 5)} is
evaluated, a negative number is returned; and if @code{nthcdr} is
called with a negative number, it returns the same value as if it were
-called with a first argument of zero. This can be seen be evaluating
+called with a first argument of zero. This can be seen by evaluating
the following code.
Here the @samp{@result{}} points to the result of evaluating the code