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Minor fixes.

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(Overlays): Explain overlays use markers.
(Managing Overlays): Explain front-advance and rear-advance
in more detail.
This commit is contained in:
Richard M. Stallman 2004-02-16 22:16:13 +00:00
parent 54eb1a2240
commit 812a234187
1 changed files with 21 additions and 10 deletions
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31
lispref/display.texi
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@ -445,7 +445,7 @@ Normally you should not change the value of this variable.
@end defvar
@defvar warning-prefix-function
If non-@code{nil}, te value is a function to generate prefix text for
If non-@code{nil}, the value is a function to generate prefix text for
warnings. Programs can bind the variable to a suitable function.
@code{display-warning} calls this function with the warnings buffer
current, and the function can insert text in it. That text becomes
@ -454,7 +454,7 @@ the beginning of the warning message.
The function is called with two arguments, the severity level and its
entry in @code{warning-levels}. It should return a list to use as the
entry (this value need not be an actual member of
@code{warning-levels}). By constructing this value, the function to
@code{warning-levels}). By constructing this value, the function can
change the severity of the warning, or specify different handling for
a given severity level.
@ -466,7 +466,7 @@ to call.
Programs can bind this variable to @code{t} to say that the next
warning should begin a series. When several warnings form a series,
that means to leave point on the first warning of the series, rather
than keep move it for each warning so that it appears on the last one.
than keep moving it for each warning so that it appears on the last one.
The series ends when the local binding is unbound and
@code{warning-series} becomes @code{nil} again.
@ -600,7 +600,7 @@ is @code{t} remains invisible.
@end defun
@defun remove-from-invisibility-spec element
This removeds the element @var{element} from
This removes the element @var{element} from
@code{buffer-invisibility-spec}. This does nothing if @var{element}
is not in the list.
@end defun
@ -966,6 +966,12 @@ object that belongs to a particular buffer, and has a specified
beginning and end. It also has properties that you can examine and set;
these affect the display of the text within the overlay.
An overlays uses markers to record its beginning and end; thus,
editing the text of the buffer adjusts the beginning and end of each
overlay so that it stays with the text. When you create the overlay,
you can specify whether text inserted at the beginning should be
inside the overlay or outside, and likewise for the end of the overlay.
@menu
* Overlay Properties:: How to read and set properties.
What properties do to the screen display.
@ -1195,7 +1201,11 @@ current buffer.
The arguments @var{front-advance} and @var{rear-advance} specify the
insertion type for the start of the overlay and for the end of the
overlay, respectively. @xref{Marker Insertion Types}.
overlay, respectively. @xref{Marker Insertion Types}. If
@var{front-advance} is non-@code{nil}, text inserted at the beginning
of the overlay is excluded from the overlay. If @var{read-advance} is
non-@code{nil}, text inserted at the beginning of the overlay is
included in the overlay.
@end defun
@defun overlay-start overlay
@ -1923,7 +1933,7 @@ and examine the face attributes which existed in those versions.
@tindex face-attribute-relative-p
@defun face-attribute-relative-p attribute value
This function returns non-@code{nil} if @var{value}, when used as a
This function returns non-@code{nil} if @var{value}, when used as
the value of the face attribute @var{attribute}, is relative (that is,
if it modifies an underlying or inherited value of @var{attribute}).
@end defun
@ -2496,7 +2506,7 @@ This function modifies the existing fontset @var{name} to
use the font name @var{fontname} for the character @var{character}.
If @var{name} is @code{nil}, this function modifies the default
fontset of which short name is @samp{fontset-default}.
fontset, whose short name is @samp{fontset-default}.
@var{character} may be a cons; @code{(@var{from} . @var{to})}, where
@var{from} and @var{to} are non-generic characters. In that case, use
@ -2536,7 +2546,7 @@ does that, this function's value may not be accurate.
The @dfn{fringes} of a window are thin vertical strips down the
sides that are used for displaying bitmaps that indicate truncation,
continuation, and horizontal scrolling, the overlay arrow. The
continuation, horizontal scrolling, and the overlay arrow. The
fringes normally appear between the display margins and the window
text, but you can put them outside the display margins for a specific
buffer by setting @code{fringes-outside-margins} buffer-locally to a
@ -2559,10 +2569,11 @@ fringe in pixels.
The values of these variables take effect when you display the
buffer in a window. If you change them while the buffer is visible,
you can call @code{set-window-buffer} to display it in a window again.
you can call @code{set-window-buffer} to display it once again in the
same window, to make the changes take effect.
@defun set-window-fringes window left &optional right outside-margins
This function sets the fringe widthes of window @var{window}.
This function sets the fringe widths of window @var{window}.
If @var{window} is @code{nil}, the selected window is used.
The argument @var{left} specifies the width in pixels of the left