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List:       haiku-bugs
Subject:    [haiku-bugs] Re: [Haiku] #12802: Integrate ICU's bidirectional text handling into BView
From:       "pulkomandy" <trac () haiku-os ! org>
Date:       2016-05-28 6:10:56
Message-ID: 062.aa696a2c647959f7b79e381052f09579 () haiku-os ! org
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#12802: Integrate ICU's bidirectional text handling into BView
----------------------------------+----------------------------
   Reporter:  richienyhus         |      Owner:  axeld
       Type:  enhancement         |     Status:  new
   Priority:  normal              |  Milestone:  R2
  Component:  Kits/Interface Kit  |    Version:  R1/Development
 Resolution:                      |   Keywords:
 Blocked By:  6950                |   Blocking:
Has a Patch:  0                   |   Platform:  All
----------------------------------+----------------------------
Description changed by pulkomandy:

Old description:

> We need to support people whose language writes text Right-to-Left, but
> who might want to mention/write something in English or another language
> that writes text Left-to-Right, therefore creating
> [https://en.wikipedia.org/wiki/Bi-directional_text bidirectional text].
>
> As the Locale Kit already uses ICU, we should integrate ICU's [http
> ://icu-project.org/apiref/icu4c/ubidi_8h.html ubidi] class into BView for
> system wide [http://userguide.icu-project.org/transforms/bidi BiDi]  text
> support.
>
> This has previously been brought up by Adrian in a
> [http://www.freelists.org/post/haiku-development/RighttoLeft-text-and-
> BiDi,1 past mailing list post].
>
> Ubidi can calculate if a text run (chuck of text to be rendered) is Left-
> to-Right; Right-to-Left; 'Direction Mixed' or 'Direction Neutral' (i.e.
> an emoji).

New description:

 We need to support people whose language writes text Right-to-Left, but
 who might want to mention/write something in English or another language
 that writes text Left-to-Right, therefore creating
 [https://en.wikipedia.org/wiki/Bi-directional_text bidirectional text].

 As the Locale Kit already uses ICU, we should integrate ICU's [http://icu-
 project.org/apiref/icu4c/ubidi_8h.html ubidi] class into BView for system
 wide [http://userguide.icu-project.org/transforms/bidi BiDi]  text
 support.

 This has previously been brought up by Adrien in a
 [http://www.freelists.org/post/haiku-development/RighttoLeft-text-and-
 BiDi,1 past mailing list post].

 Ubidi can calculate if a text run (chuck of text to be rendered) is Left-
 to-Right; Right-to-Left; 'Direction Mixed' or 'Direction Neutral' (i.e. an
 emoji).

--

--
Ticket URL: <https://dev.haiku-os.org/ticket/12802#comment:1>
Haiku <https://dev.haiku-os.org>
Haiku - the operating system.

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