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Document the 'display-line-numbers-disable' property

* doc/lispref/display.texi (Overlay Properties):
* doc/lispref/text.texi (Special Properties): Document
'display-line-numbers-disable'.  Fix indexing.
This commit is contained in:
Eli Zaretskii 2024-11-09 13:33:21 +02:00
parent b1be0f2ba6
commit 94bf7ad797
2 changed files with 61 additions and 46 deletions

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@ -1825,8 +1825,8 @@ overlay properties and text properties for a given character.
of them:
@table @code
@item priority
@kindex priority @r{(overlay property)}
@item priority
This property's value determines the priority of the overlay. If you
want to specify a priority value, use either @code{nil} (or zero), or
a positive integer, or a cons of two values. Any other value triggers
@ -1865,19 +1865,19 @@ Currently, all overlays take priority over text properties.
If you need to put overlays in priority order, use the @var{sorted}
argument of @code{overlays-at}. @xref{Finding Overlays}.
@item window
@kindex window @r{(overlay property)}
@item window
If the @code{window} property is non-@code{nil}, then the overlay
applies only on that window.
@item category
@kindex category @r{(overlay property)}
@item category
If an overlay has a @code{category} property, we call it the
@dfn{category} of the overlay. It should be a symbol. The properties
of the symbol serve as defaults for the properties of the overlay.
@item face
@kindex face @r{(overlay property)}
@item face
This property controls the appearance of the text (@pxref{Faces}).
The value of the property can be the following:
@ -1905,37 +1905,37 @@ form is supported for backward compatibility only, and should be
avoided.
@end itemize
@item mouse-face
@kindex mouse-face @r{(overlay property)}
@item mouse-face
This property is used instead of @code{face} when the mouse is within
the range of the overlay. However, Emacs ignores all face attributes
from this property that alter the text size (e.g., @code{:height},
@code{:weight}, and @code{:slant}); those attributes are always the
same as in the unhighlighted text.
@item display
@kindex display @r{(overlay property)}
@item display
This property activates various features that change the
way text is displayed. For example, it can make text appear taller
or shorter, higher or lower, wider or narrower, or replaced with an image.
@xref{Display Property}.
@item help-echo
@kindex help-echo @r{(overlay property)}
@item help-echo
If an overlay has a @code{help-echo} property, then when you move the
mouse onto the text in the overlay, Emacs displays a help string in
the echo area, or as a tooltip. For details see @ref{Text help-echo}.
@item field
@kindex field @r{(overlay property)}
@item field
@c Copied from Special Properties.
Consecutive characters with the same @code{field} property constitute a
@emph{field}. Some motion functions including @code{forward-word} and
@code{beginning-of-line} stop moving at a field boundary.
@xref{Fields}.
@item modification-hooks
@kindex modification-hooks @r{(overlay property)}
@item modification-hooks
This property's value is a list of functions to be called if any
character within the overlay is changed or if text is inserted strictly
within the overlay.
@ -1966,26 +1966,26 @@ prepare for that. @xref{Change Hooks}.
Text properties also support the @code{modification-hooks} property,
but the details are somewhat different (@pxref{Special Properties}).
@item insert-in-front-hooks
@kindex insert-in-front-hooks @r{(overlay property)}
@item insert-in-front-hooks
This property's value is a list of functions to be called before and
after inserting text right at the beginning of the overlay. The calling
conventions are the same as for the @code{modification-hooks} functions.
@item insert-behind-hooks
@kindex insert-behind-hooks @r{(overlay property)}
@item insert-behind-hooks
This property's value is a list of functions to be called before and
after inserting text right at the end of the overlay. The calling
conventions are the same as for the @code{modification-hooks} functions.
@item invisible
@kindex invisible @r{(overlay property)}
@item invisible
The @code{invisible} property can make the text in the overlay
invisible, which means that it does not appear on the screen.
@xref{Invisible Text}, for details.
@item intangible
@kindex intangible @r{(overlay property)}
@item intangible
The @code{intangible} property on an overlay works just like the
@code{intangible} text property. It is obsolete. @xref{Special
Properties}, for details.
@ -2000,15 +2000,15 @@ Text}.
This property tells incremental search how to make an invisible overlay
visible, temporarily, during the search. @xref{Invisible Text}.
@item before-string
@kindex before-string @r{(overlay property)}
@item before-string
This property's value is a string to add to the display at the beginning
of the overlay. The string does not appear in the buffer in any
sense---only on the screen. Note that if the text at the beginning of
the overlay is made invisible, the string will not be displayed.
@item after-string
@kindex after-string @r{(overlay property)}
@item after-string
This property's value is a string to add to the display at the end of
the overlay. The string does not appear in the buffer in any
sense---only on the screen. Note that if the text at the end of the
@ -2022,8 +2022,8 @@ non-continuation line at display-time. @xref{Truncation}.
This property specifies a display spec to prepend to each continuation
line at display-time. @xref{Truncation}.
@item evaporate
@kindex evaporate @r{(overlay property)}
@item evaporate
If this property is non-@code{nil}, the overlay is deleted automatically
if it becomes empty (i.e., if its length becomes zero). If you give
an empty overlay (@pxref{Managing Overlays, empty overlay}) a
@ -2032,9 +2032,18 @@ Note that, unless an overlay has this property, it will not be deleted
when the text between its starting and ending positions is deleted
from the buffer.
@item keymap
@kindex display-line-numbers-disable @r{(overlay property)}
@item display-line-numbers-disable
This property prevents display of line numbers (@pxref{Display Custom,
display-line-numbers,, emacs, The GNU Emacs Manual}) for the text which
is within an overlay having this property. One situation where using an
overlay with this property is useful is an empty overlay at
end-of-buffer, since otherwise there's no way of preventing the display
of the line number there.
@cindex keymap of character (and overlays)
@kindex keymap @r{(overlay property)}
@item keymap
If this property is non-@code{nil}, it specifies a keymap for a
portion of the text. This keymap takes precedence over most other
keymaps (@pxref{Active Keymaps}), and it is used when point is within
@ -2042,8 +2051,8 @@ the overlay, where the front-
and rear-advance properties define whether the boundaries are
considered as being @emph{within} or not.
@item local-map
@kindex local-map @r{(overlay property)}
@item local-map
The @code{local-map} property is similar to @code{keymap} but replaces the
buffer's local map rather than augmenting existing keymaps. This also means it
has lower precedence than minor mode keymaps.

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@ -3569,8 +3569,8 @@ the context.
The @code{add-face-text-property} function provides a convenient way
to set this text property. @xref{Changing Properties}.
@item font-lock-face
@kindex font-lock-face @r{(text property)}
@item font-lock-face
This property specifies a value for the @code{face} property that Font
Lock mode should apply to the underlying text. It is one of the
fontification methods used by Font Lock mode, and is useful for
@ -3578,8 +3578,8 @@ special modes that implement their own highlighting.
@xref{Precalculated Fontification}. When Font Lock mode is disabled,
@code{font-lock-face} has no effect.
@item mouse-face
@kindex mouse-face @r{(text property)}
@item mouse-face
This property is used instead of @code{face} when the mouse pointer
hovers over the text which has this property. When this happens, the
entire stretch of text that has the same @code{mouse-face} property
@ -3590,10 +3590,10 @@ that alter the text size (e.g., @code{:height}, @code{:weight}, and
@code{:slant}). Those attributes are always the same as for the
unhighlighted text.
@item cursor-face
@kindex cursor-face @r{(text property)}
@findex cursor-face-highlight-mode
@vindex cursor-face-highlight-nonselected-window
@item cursor-face
This property is similar to @code{mouse-face}, but it is used when
point (not the mouse) is inside text that has this property. The
highlighting happens only if the mode
@ -3604,8 +3604,8 @@ similarly to what @code{highlight-nonselected-windows} does for the
region (@pxref{Mark,, The Mark and the Region, emacs, The GNU Emacs
Manual}).
@item fontified
@kindex fontified @r{(text property)}
@item fontified
This property says whether the text is ready for display. If
@code{nil}, Emacs's redisplay routine calls the functions in
@code{fontification-functions} (@pxref{Auto Faces}) to prepare this
@ -3618,9 +3618,9 @@ way text is displayed. For example, it can make text appear taller
or shorter, higher or lower, wider or narrow, or replaced with an image.
@xref{Display Property}.
@item help-echo
@kindex help-echo @r{(text property)}
@cindex tooltip for help strings
@item help-echo
@anchor{Text help-echo}
If text has a string as its @code{help-echo} property, then when you
move the mouse onto that text, Emacs displays that string in the echo
@ -3655,17 +3655,17 @@ You can alter the way help text is displayed by setting the variable
This feature is used in the mode line and for other active text.
@item help-echo-inhibit-substitution
@cindex help-echo text, avoid command-key substitution
@kindex help-echo-inhibit-substitution @r{(text property)}
@item help-echo-inhibit-substitution
If the first character of a @code{help-echo} string has a
non-@code{nil} @code{help-echo-inhibit-substitution} property, then it
is displayed as-is by @code{show-help-function}, without being passed
through @code{substitute-command-keys}.
@cindex help-echo text on fringes
@item left-fringe-help
@itemx right-fringe-help
@cindex help-echo text on fringes
If any visible text of a screen line has the @code{left-fringe-help} or
@code{right-fringe-help} text property whose value is a string, then
that string will be displayed when the mouse pointer hovers over the
@ -3673,9 +3673,9 @@ corresponding line's fringe through @code{show-help-function}
(@pxref{Help display}). This is useful when used together with fringe
cursors and bitmaps (@pxref{Fringes}).
@item keymap
@cindex keymap of character
@kindex keymap @r{(text property)}
@item keymap
The @code{keymap} property specifies an additional keymap for
commands. When this keymap applies, it is used for key lookup before
the minor mode keymaps and before the buffer's local map.
@ -3688,8 +3688,8 @@ character after point applies if it is non-@code{nil} and
front-sticky. (For mouse clicks, the position of the click is used
instead of the position of point.)
@item local-map
@kindex local-map @r{(text property)}
@item local-map
This property works like @code{keymap} except that it specifies a
keymap to use @emph{instead of} the buffer's local map. For most
purposes (perhaps all purposes), it is better to use the @code{keymap}
@ -3699,9 +3699,9 @@ property.
The @code{syntax-table} property overrides what the syntax table says
about this particular character. @xref{Syntax Properties}.
@item read-only
@cindex read-only character
@kindex read-only @r{(text property)}
@item read-only
If a character has the property @code{read-only}, then modifying that
character is not allowed. Any command that would do so gets an error,
@code{text-read-only}. If the property value is a string, that string
@ -3717,23 +3717,23 @@ possible to remove a @code{read-only} property unless you know the
special trick: bind @code{inhibit-read-only} to a non-@code{nil} value
and then remove the property. @xref{Read Only Buffers}.
@item inhibit-read-only
@kindex inhibit-read-only @r{(text property)}
@item inhibit-read-only
Characters that have the property @code{inhibit-read-only} can be
edited even in read-only buffers. @xref{Read Only Buffers}.
@item invisible
@kindex invisible @r{(text property)}
@item invisible
A non-@code{nil} @code{invisible} property can make a character invisible
on the screen. @xref{Invisible Text}, for details.
@kindex inhibit-isearch @r{(text property)}
@item inhibit-isearch
@kindex inhibit-isearch @r{(text property)}
A non-@code{nil} @code{inhibit-isearch} property will make isearch
skip the text.
@item intangible
@kindex intangible @r{(text property)}
@item intangible
If a group of consecutive characters have equal and non-@code{nil}
@code{intangible} properties, then you cannot place point between them.
If you try to move point forward into the group, point actually moves to
@ -3754,10 +3754,10 @@ the command loop will move point outside of the invisible text at the end of
each command anyway. @xref{Adjusting Point}. For these reasons, this
property is obsolete; use the @code{cursor-intangible} property instead.
@item cursor-intangible
@kindex cursor-intangible @r{(text property)}
@findex cursor-intangible-mode
@cindex rear-nonsticky, and cursor-intangible property
@item cursor-intangible
When the minor mode @code{cursor-intangible-mode} is turned on, point
is moved away from any position that has a non-@code{nil}
@code{cursor-intangible} property, just before redisplay happens.
@ -3777,15 +3777,15 @@ When the variable @code{cursor-sensor-inhibit} is non-@code{nil}, the
@code{cursor-intangible} property and the
@code{cursor-sensor-functions} property (described below) are ignored.
@item field
@kindex field @r{(text property)}
@item field
Consecutive characters with the same @code{field} property constitute a
@dfn{field}. Some motion functions including @code{forward-word} and
@code{beginning-of-line} stop moving at a field boundary.
@xref{Fields}.
@item cursor
@kindex cursor @r{(text property)}
@item cursor
Normally, the cursor is displayed at the beginning or the end of any
overlay and text property strings that ``hide'' (i.e., are displayed
instead of) the current buffer position. You can instead tell Emacs
@ -3834,21 +3834,21 @@ Lisp program wants to put the cursor, or where the user would expect
the cursor, when point is located on some buffer position that is
``covered'' by the display or overlay string.
@item pointer
@kindex pointer @r{(text property)}
@item pointer
This specifies a specific pointer shape when the mouse pointer is over
this text or image. @xref{Pointer Shape}, for possible pointer
shapes.
@item line-spacing
@kindex line-spacing @r{(text property)}
@item line-spacing
A newline can have a @code{line-spacing} text or overlay property that
controls the height of the display line ending with that newline. The
property value overrides the default frame line spacing and the buffer
local @code{line-spacing} variable. @xref{Line Height}.
@item line-height
@kindex line-height @r{(text property)}
@item line-height
A newline can have a @code{line-height} text or overlay property that
controls the total height of the display line ending in that newline.
@xref{Line Height}.
@ -3892,10 +3892,10 @@ A line-prefix may also be specified for an entire buffer using the
@code{line-prefix} text-property takes precedence over the value of
the @code{line-prefix} variable). @xref{Truncation}.
@item modification-hooks
@cindex change hooks for a character
@cindex hooks for changing a character
@kindex modification-hooks @r{(text property)}
@item modification-hooks
If a character has the property @code{modification-hooks}, then its
value should be a list of functions; modifying that character calls
all of those functions before the actual modification. Each function
@ -3918,10 +3918,10 @@ recursive calls. @xref{Change Hooks}.
Overlays also support the @code{modification-hooks} property, but the
details are somewhat different (@pxref{Overlay Properties}).
@item insert-in-front-hooks
@itemx insert-behind-hooks
@kindex insert-in-front-hooks @r{(text property)}
@kindex insert-behind-hooks @r{(text property)}
@item insert-in-front-hooks
@itemx insert-behind-hooks
The operation of inserting text in a buffer also calls the functions
listed in the @code{insert-in-front-hooks} property of the following
character and in the @code{insert-behind-hooks} property of the
@ -3939,11 +3939,11 @@ prepare for that.
See also @ref{Change Hooks}, for other hooks that are called
when you change text in a buffer.
@item point-entered
@itemx point-left
@cindex hooks for motion of point
@kindex point-entered @r{(text property)}
@kindex point-left @r{(text property)}
@item point-entered
@itemx point-left
The special properties @code{point-entered} and @code{point-left}
record hook functions that report motion of point. Each time point
moves, Emacs compares these two property values:
@ -3979,9 +3979,9 @@ running the @code{point-left} and @code{point-entered} hooks, see
These properties are obsolete; please use
@code{cursor-sensor-functions} instead.
@item cursor-sensor-functions
@kindex cursor-sensor-functions @r{(text property)}
@findex cursor-sensor-mode
@item cursor-sensor-functions
This special property records a list of functions that react to cursor
motion. Each function in the list is called, just before redisplay,
with 3 arguments: the affected window, the previous known position of
@ -3993,15 +3993,15 @@ mode @code{cursor-sensor-mode} is turned on.
When the variable @code{cursor-sensor-inhibit} is non-@code{nil}, the
@code{cursor-sensor-functions} property is ignored.
@item composition
@kindex composition @r{(text property)}
@item composition
This text property is used to display a sequence of characters as a
single glyph composed from components. But the value of the property
itself is completely internal to Emacs and should not be manipulated
directly by, for instance, @code{put-text-property}.
@item minibuffer-message
@kindex minibuffer-message @r{(text property)}
@item minibuffer-message
This text property tells where to display temporary messages in an
active minibuffer. Specifically, the first character of the
minibuffer text which has this property will have the temporary
@ -4010,6 +4010,12 @@ messages at the end of the minibuffer text. This text property is
used by the function that is the default value of
@code{set-message-function} (@pxref{Displaying Messages}).
@kindex display-line-numbers-disable @r{(text property)}
@item display-line-numbers-disable
This text property prevents display of line numbers (@pxref{Display
Custom, display-line-numbers,, emacs, The GNU Emacs Manual}) for the
text which has this property.
@end table
@defvar inhibit-point-motion-hooks