[Emacs-diffs] Changes to picture-xtra.texi

[Glenn Morris]

CVSROOT:        /sources/emacs
Module name:    emacs
Changes by:     Glenn Morris <gm>       07/09/06 04:39:28

Index: picture-xtra.texi
===================================================================
RCS file: picture-xtra.texi
diff -N picture-xtra.texi
--- picture-xtra.texi   21 Jan 2007 04:41:10 -0000      1.5
+++ /dev/null   1 Jan 1970 00:00:00 -0000
@@ -1,291 +0,0 @@
address@hidden This is part of the Emacs manual.
address@hidden Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, 
Inc.
address@hidden See file emacs.texi for copying conditions.
address@hidden
address@hidden This file is included either in emacs-xtra.texi (when producing 
the
address@hidden printed version) or in the main Emacs manual (for the on-line 
version).
address@hidden Picture Mode
address@hidden Editing Pictures
address@hidden pictures
address@hidden making pictures out of text characters
address@hidden edit-picture
-
-  To edit a picture made out of text characters (for example, a picture
-of the division of a register into fields, as a comment in a program),
-use the command @kbd{M-x edit-picture} to enter Picture mode.
-
-  In Picture mode, editing is based on the @dfn{quarter-plane} model of
-text, according to which the text characters lie studded on an area that
-stretches infinitely far to the right and downward.  The concept of the end
-of a line does not exist in this model; the most you can say is where the
-last nonblank character on the line is found.
-
-  Of course, Emacs really always considers text as a sequence of
-characters, and lines really do have ends.  But Picture mode replaces
-the most frequently-used commands with variants that simulate the
-quarter-plane model of text.  They do this by inserting spaces or by
-converting tabs to spaces.
-
-  Most of the basic editing commands of Emacs are redefined by Picture mode
-to do essentially the same thing but in a quarter-plane way.  In addition,
-Picture mode defines various keys starting with the @kbd{C-c} prefix to
-run special picture editing commands.
-
-  One of these keys, @kbd{C-c C-c}, is particularly important.  Often a
-picture is part of a larger file that is usually edited in some other
-major mode.  @kbd{M-x edit-picture} records the name of the previous
-major mode so you can use the @kbd{C-c C-c} command
-(@code{picture-mode-exit}) later to go back to that mode.  @kbd{C-c C-c}
-also deletes spaces from the ends of lines, unless given a numeric
-argument.
-
-  The special commands of Picture mode all work in other modes (provided
-the @file{picture} library is loaded), but are not bound to keys except
-in Picture mode.  The descriptions below talk of moving ``one column''
-and so on, but all the picture mode commands handle numeric arguments as
-their normal equivalents do.
-
address@hidden picture-mode-hook
-  Turning on Picture mode runs the hook @code{picture-mode-hook}.
-Additional extensions to Picture mode can be found in
address@hidden
-
address@hidden
-* Basic Picture::         Basic concepts and simple commands of Picture Mode.
-* Insert in Picture::     Controlling direction of cursor motion
-                            after "self-inserting" characters.
-* Tabs in Picture::       Various features for tab stops and indentation.
-* Rectangles in Picture:: Clearing and superimposing rectangles.
address@hidden menu
-
address@hidden Basic Picture
address@hidden Basic Editing in Picture Mode
-
address@hidden picture-forward-column
address@hidden picture-backward-column
address@hidden picture-move-down
address@hidden picture-move-up
address@hidden editing in Picture mode
-
-  Most keys do the same thing in Picture mode that they usually do, but
-do it in a quarter-plane style.  For example, @kbd{C-f} is rebound to
-run @code{picture-forward-column}, a command which moves point one
-column to the right, inserting a space if necessary so that the actual
-end of the line makes no difference.  @kbd{C-b} is rebound to run
address@hidden, which always moves point left one
-column, converting a tab to multiple spaces if necessary.  @kbd{C-n} and
address@hidden are rebound to run @code{picture-move-down} and
address@hidden, which can either insert spaces or convert tabs
-as necessary to make sure that point stays in exactly the same column.
address@hidden runs @code{picture-end-of-line}, which moves to after the last
-nonblank character on the line.  There is no need to change @kbd{C-a},
-as the choice of screen model does not affect beginnings of
-lines.
-
address@hidden picture-newline
-  Insertion of text is adapted to the quarter-plane screen model
-through the use of Overwrite mode
address@hidden
-(@pxref{Minor Modes,,, emacs, the Emacs Manual}.)
address@hidden iftex
address@hidden
-(@pxref{Minor Modes}.)
address@hidden ifnottex
-Self-inserting characters replace existing text, column by column,
-rather than pushing existing text to the right.  @key{RET} runs
address@hidden, which just moves to the beginning of the
-following line so that new text will replace that line.
-
address@hidden picture-backward-clear-column
address@hidden picture-clear-column
address@hidden picture-clear-line
-  In Picture mode, the commands that normally delete or kill text,
-instead erase text (replacing it with spaces).  @key{DEL}
-(@code{picture-backward-clear-column}) replaces the preceding
-character with a space rather than removing it; this moves point
-backwards.  @kbd{C-d} (@code{picture-clear-column}) replaces the next
-character or characters with spaces, but does not move point.  (If you
-want to clear characters to spaces and move forward over them, use
address@hidden)  @kbd{C-k} (@code{picture-clear-line}) really kills the
-contents of lines, but does not delete the newlines from the buffer.
-
address@hidden picture-open-line
-  To do actual insertion, you must use special commands.  @kbd{C-o}
-(@code{picture-open-line}) creates a blank line after the current
-line; it never splits a line.  @kbd{C-M-o} (@code{split-line}) makes
-sense in Picture mode, so it is not changed.  @kbd{C-j}
-(@code{picture-duplicate-line}) inserts another line with the same
-contents below the current line.
-
address@hidden C-c C-d @r{(Picture mode)}
-   To do actual deletion in Picture mode, use @kbd{C-w}, @kbd{C-c C-d}
-(which is defined as @code{delete-char}, as @kbd{C-d} is in other
-modes), or one of the picture rectangle commands (@pxref{Rectangles in
-Picture}).
-
address@hidden Insert in Picture
address@hidden Controlling Motion after Insert
-
address@hidden picture-movement-up
address@hidden picture-movement-down
address@hidden picture-movement-left
address@hidden picture-movement-right
address@hidden picture-movement-nw
address@hidden picture-movement-ne
address@hidden picture-movement-sw
address@hidden picture-movement-se
address@hidden C-c < @r{(Picture mode)}
address@hidden C-c > @r{(Picture mode)}
address@hidden C-c ^ @r{(Picture mode)}
address@hidden C-c . @r{(Picture mode)}
address@hidden C-c ` @r{(Picture mode)}
address@hidden C-c ' @r{(Picture mode)}
address@hidden C-c / @r{(Picture mode)}
address@hidden C-c \ @r{(Picture mode)}
-  Since ``self-inserting'' characters in Picture mode overwrite and move
-point, there is no essential restriction on how point should be moved.
-Normally point moves right, but you can specify any of the eight
-orthogonal or diagonal directions for motion after a ``self-inserting''
-character.  This is useful for drawing lines in the buffer.
-
address@hidden @kbd
address@hidden C-c <
address@hidden C-c @key{LEFT}
-Move left after insertion (@code{picture-movement-left}).
address@hidden C-c >
address@hidden C-c @key{RIGHT}
-Move right after insertion (@code{picture-movement-right}).
address@hidden C-c ^
address@hidden C-c @key{UP}
-Move up after insertion (@code{picture-movement-up}).
address@hidden C-c .
address@hidden C-c @key{DOWN}
-Move down after insertion (@code{picture-movement-down}).
address@hidden C-c `
address@hidden C-c @key{HOME}
-Move up and left (``northwest'') after insertion (@code{picture-movement-nw}).
address@hidden C-c '
address@hidden C-c @key{PAGEUP}
-Move up and right (``northeast'') after insertion
-(@code{picture-movement-ne}).
address@hidden C-c /
address@hidden C-c @key{END}
-Move down and left (``southwest'') after insertion
address@hidden(@code{picture-movement-sw}).
address@hidden C-c \
address@hidden C-c @key{PAGEDOWN}
-Move down and right (``southeast'') after insertion
address@hidden(@code{picture-movement-se}).
address@hidden table
-
address@hidden C-c C-f @r{(Picture mode)}
address@hidden C-c C-b @r{(Picture mode)}
address@hidden picture-motion
address@hidden picture-motion-reverse
-  Two motion commands move based on the current Picture insertion
-direction.  The command @kbd{C-c C-f} (@code{picture-motion}) moves in the
-same direction as motion after ``insertion'' currently does, while @kbd{C-c
-C-b} (@code{picture-motion-reverse}) moves in the opposite direction.
-
address@hidden Tabs in Picture
address@hidden Picture Mode Tabs
-
address@hidden M-TAB @r{(Picture mode)}
address@hidden picture-tab-search
address@hidden picture-tab-chars
-  Two kinds of tab-like action are provided in Picture mode.  Use
address@hidden@key{TAB}} (@code{picture-tab-search}) for context-based tabbing.
-With no argument, it moves to a point underneath the next
-``interesting'' character that follows whitespace in the previous
-nonblank line.  ``Next'' here means ``appearing at a horizontal position
-greater than the one point starts out at.''  With an argument, as in
address@hidden address@hidden, this command moves to the next such interesting
-character in the current line.  @address@hidden does not change the
-text; it only moves point.  ``Interesting'' characters are defined by
-the variable @code{picture-tab-chars}, which should define a set of
-characters.  The syntax for this variable is like the syntax used inside
-of @address@hidden in a regular expression---but without the @samp{[}
-and the @samp{]}.  Its default value is @code{"!-~"}.
-
address@hidden picture-tab
-  @key{TAB} itself runs @code{picture-tab}, which operates based on the
-current tab stop settings; it is the Picture mode equivalent of
address@hidden  Normally it just moves point, but with a numeric
-argument it clears the text that it moves over.
-
address@hidden C-c TAB @r{(Picture mode)}
address@hidden picture-set-tab-stops
-  The context-based and tab-stop-based forms of tabbing are brought
-together by the command @kbd{C-c @key{TAB}} (@code{picture-set-tab-stops}).
-This command sets the tab stops to the positions which @address@hidden
-would consider significant in the current line.  The use of this command,
-together with @key{TAB}, can get the effect of context-based tabbing.  But
address@hidden@key{TAB}} is more convenient in the cases where it is sufficient.
-
-  It may be convenient to prevent use of actual tab characters in
-pictures.  For example, this prevents @kbd{C-x @key{TAB}} from messing
-up the picture.  You can do this by setting the variable
address@hidden to @code{nil}.
-
address@hidden Rectangles in Picture
address@hidden Picture Mode Rectangle Commands
address@hidden rectangles and Picture mode
address@hidden Picture mode and rectangles
-
-  Picture mode defines commands for working on rectangular pieces of
-the text in ways that fit with the quarter-plane model.  The standard
-rectangle commands may also be useful.
address@hidden
address@hidden,,, emacs, the Emacs Manual}.
address@hidden iftex
address@hidden
address@hidden
address@hidden ifnottex
-
address@hidden @kbd
address@hidden C-c C-k
-Clear out the region-rectangle with spaces
-(@code{picture-clear-rectangle}).  With argument, delete the text.
address@hidden C-c C-w @var{r}
-Similar, but save rectangle contents in register @var{r} first
-(@code{picture-clear-rectangle-to-register}).
address@hidden C-c C-y
-Copy last killed rectangle into the buffer by overwriting, with upper
-left corner at point (@code{picture-yank-rectangle}).  With argument,
-insert instead.
address@hidden C-c C-x @var{r}
-Similar, but use the rectangle in register @var{r}
-(@code{picture-yank-rectangle-from-register}).
address@hidden table
-
address@hidden C-c C-k @r{(Picture mode)}
address@hidden C-c C-w @r{(Picture mode)}
address@hidden picture-clear-rectangle
address@hidden picture-clear-rectangle-to-register
-  The picture rectangle commands @kbd{C-c C-k}
-(@code{picture-clear-rectangle}) and @kbd{C-c C-w}
-(@code{picture-clear-rectangle-to-register}) differ from the standard
-rectangle commands in that they normally clear the rectangle instead of
-deleting it; this is analogous with the way @kbd{C-d} is changed in Picture
-mode.
-
-  However, deletion of rectangles can be useful in Picture mode, so
-these commands delete the rectangle if given a numeric argument.
address@hidden C-k} either with or without a numeric argument saves the
-rectangle for @kbd{C-c C-y}.
-
address@hidden C-c C-y @r{(Picture mode)}
address@hidden C-c C-x @r{(Picture mode)}
address@hidden picture-yank-rectangle
address@hidden picture-yank-rectangle-from-register
-  The Picture mode commands for yanking rectangles differ from the
-standard ones in that they overwrite instead of inserting.  This is
-the same way that Picture mode insertion of other text differs from
-other modes.  @kbd{C-c C-y} (@code{picture-yank-rectangle}) inserts
-(by overwriting) the rectangle that was most recently killed, while
address@hidden C-x} (@code{picture-yank-rectangle-from-register}) does
-likewise for the rectangle found in a specified register.
-
address@hidden
-   arch-tag: 10e423ad-d896-42f2-a7e8-7018adeaf8c2
address@hidden ignore