@c -*-texinfo-*-
@c This is part of the GNU Emacs Lisp Reference Manual.
-@c Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000
-@c Free Software Foundation, Inc.
+@c Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2001
+@c Free Software Foundation, Inc.
@c See the file elisp.texi for copying conditions.
@setfilename ../info/positions
@node Positions, Markers, Frames, Top
surrounding characters. @xref{Markers}.
See also the ``field'' feature (@pxref{Fields}), which provides
-functions that are used by many cursur-motion commands.
+functions that are used by many cursor-motion commands.
@menu
* Point:: The special position where editing takes place.
argument @var{count} not @code{nil} or 1, it moves forward
@var{count}@minus{}1 lines and then to the beginning of the line.
+This function does not move point across a field boundary
+(@pxref{Fields}) unless doing so would move beyond there to a
+different line; therefore, if @var{count} is @code{nil} or 1, and
+point starts at a field boundary, point does not move. To ignore
+field boundaries, either bind @code{inhibit-field-text-motion} to
+@code{t}, or use the @code{forward-line} function instead. For
+instance, @code{(forward-line 0)} does the same thing as
+@code{(beginning-of-line)}, except that it ignores field boundaries.
+
If this function reaches the end of the buffer (or of the accessible
portion, if narrowing is in effect), it positions point there. No error
is signaled.
argument @var{count} not @code{nil} or 1, it moves forward
@var{count}@minus{}1 lines and then to the end of the line.
+This function does not move point across a field boundary
+(@pxref{Fields}) unless doing so would move beyond there to a
+different line; therefore, if @var{count} is @code{nil} or 1, and
+point starts at a field boundary, point does not move. To ignore
+field boundaries, bind @code{inhibit-field-text-motion} to @code{t}.
+
If this function reaches the end of the buffer (or of the accessible
portion, if narrowing is in effect), it positions point there. No error
is signaled.
The return value is a list of five elements:
@example
-(@var{pos} @var{vpos} @var{hpos} @var{prevhpos} @var{contin})
+(@var{pos} @var{hpos} @var{vpos} @var{prevhpos} @var{contin})
@end example
@noindent
@node List Motion
@comment node-name, next, previous, up
-@subsection Moving over Balanced Expressions
+@subsection Moving over Balanced Expressions
@cindex sexp motion
@cindex Lisp expression motion
@cindex list motion
characters. For example, they are often used to skip whitespace. For
related functions, see @ref{Motion and Syntax}.
+These functions convert the set string to multibyte if the buffer is
+multibyte, and they convert it to unibyte if the buffer is unibyte, as
+the search functions do (@pxref{Searching and Matching}).
+
@defun skip-chars-forward character-set &optional limit
This function moves point in the current buffer forward, skipping over a
given set of characters. It examines the character following point,
---------- Buffer: foo ----------
@end group
@end example
+
+Note that char classes are not currently supported in
+@var{character-set}; they will be treated as literals. Thus you
+cannot use @code{"[:alpha:]"} instead of @code{"a-zA-Z"} to include
+non-ASCII letters. A way to skip forward over all letters is:
+
+@example
+(re-search-forward "\\=[[:alpha:]]*" nil t)
+@end example
@end defun
@defun skip-chars-backward character-set &optional limit