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etc/NEWS: Fix entries related to bidirectional support.

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Eli Zaretskii 2011-08-27 11:36:56 +03:00
parent 35b1c40c36
commit f18164855a
1 changed files with 19 additions and 11 deletions
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etc/NEWS
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@ -174,10 +174,12 @@ to the --parent-id argument to Emacs.
+++
*** Emacs now supports display and editing of bidirectional text.
Right-to-left (RTL) text is displayed in a right-to-left direction.
This display reordering is a "Full bidirectionality" class
implementation of the Unicode Bidirectional Algorithm. Buffers with
no right-to-left (RTL) text should look exactly the same as before.
Text that includes characters from right-to-left (RTL) scripts, such
as Arabic, Farsi, or Hebrew, is displayed in the correct visual order
as expected by users of those scripts. This display reordering is a
"Full bidirectionality" class implementation of the Unicode
Bidirectional Algorithm. Buffers RTL text should look exactly the
same as before.
For more information, see the node "Bidirectional Editing" in the
Emacs Manual.
@ -195,6 +197,9 @@ Algorithm.
Setting this to `right-to-left' or `left-to-right' forces a particular
base direction on each paragraph in the buffer.
Paragraphs whose base direction is right-to-left are displayed
starting at the right margin of the window.
+++
*** Enhanced support for characters with no glyphs in available fonts.
If a character has no glyphs in any of the available fonts, Emacs
@ -928,21 +933,24 @@ Emacs Lisp developers can use this tool to write automated tests for
their code. See the ERT info manual for details.
** Changes for bidirectional display and editing
+++
*** New function `current-bidi-paragraph-direction'.
This returns the actual value of paragraph base direction at point.
This returns the actual value of base direction of the paragraph at
point.
+++
*** New function `bidi-string-mark-left-to-right'.
Given a string containing right-to-left (RTL) script, this function
returns another string which can be safely inserted into a buffer as a
distinct RTL "segment", without causing any following text to be
displayed as RTL. (This is done by appending a Unicode "left-to-right
mark" character.)
Given a string containing characters from right-to-left (RTL) scripts,
this function returns another string which can be safely inserted into
a buffer, such that any following text will be always displayed to the
right of that string. (This works by appending the Unicode
"LEFT-TO-RIGHT MARK" character when the argument string might need that.)
This is useful when the buffer has overall left-to-right (LTR)
paragraph direction and you need to insert a string whose contents and
directionality are not known in advance.
directionality are not known in advance, without disrupting the layout
of the line.
** Window changes