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feat: some improvements on glossary BiDi #33421

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May 21, 2024
Merged

feat: some improvements on glossary BiDi #33421

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feat: some improvements
PassionPenguin May 5, 2024
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10 changes: 9 additions & 1 deletion files/en-us/glossary/bidi/index.md
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Expand Up @@ -6,8 +6,16 @@ page-type: glossary-definition

{{GlossarySidebar}}

**BiDi** (BiDirectional) refers to a document containing both right-to-left and left-to-right text. Even when both directionalities occur in the same paragraph, the text in each language must appear in its proper directionality.
**BiDi** (BiDirectional) denotes the characteristic a document has, signifying that both right-to-left (RTL) and left-to-right (LTR) text orientations occurred in one document.
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User Interfaces should design to display BiDi content correctly, but many failed in this. An example is the RTL Hebrew name Sarah: שרה, spelled sin (ש) on the right, resh (ר) in the middle, and heh (ה) on the left, which, many programs would display the Hebrew word in the opposite order.
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It is possible to simply flip the left-to-right display order to a right-to-left display order, but doing this sacrifices the ability to correctly display left-to-right scripts. With bidirectional script support, it is possible to mix characters from different scripts on the same page, regardless of writing direction.
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The Unicode standard provides foundations for complete BiDi support, with detailed rules as to how mixtures of left-to-right and right-to-left scripts are to be encoded and displayed.

## See also

- {{glossary("Unicode")}}
- [Bi-directional text](https://en.wikipedia.org/wiki/Bi-directional_text) on Wikipedia
- [UAX#9: Unicode Bi-directional Algorithm](https://www.unicode.org/reports/tr9/#Resolving_Weak_Types)
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