Crate unic_bidi [−] [src]
UNIC — Unicode Bidirectional Algorithm
A component of unic
: Unicode and Internationalization Crates for Rust.
This UNIC component implements algorithms from Unicode Standard Annex #9 - Unicode Bidirectional Algorithm, a.k.a. UBA, used for display of mixed right-to-left and left-to-right text. It is written in safe Rust, compatible with the current stable release.
Example
use unic_bidi::BidiInfo; // This example text is defined using `concat!` because some browsers // and text editors have trouble displaying bidi strings. let text = concat![ "א", "ב", "ג", "a", "b", "c", ]; // Resolve embedding levels within the text. Pass `None` to detect the // paragraph level automatically. let bidi_info = BidiInfo::new(&text, None); // This paragraph has embedding level 1 because its first strong character is RTL. assert_eq!(bidi_info.paragraphs.len(), 1); let para = &bidi_info.paragraphs[0]; assert_eq!(para.level.number(), 1); assert_eq!(para.level.is_rtl(), true); // Re-ordering is done after wrapping each paragraph into a sequence of // lines. For this example, I'll just use a single line that spans the // entire paragraph. let line = para.range.clone(); let display = bidi_info.reorder_line(para, line); assert_eq!(display, concat![ "a", "b", "c", "ג", "ב", "א", ]);
Reexports
pub use level::Level; |
Modules
format_chars |
Directional Formatting Characters |
level |
Bidi Embedding Level |
Structs
BidiInfo |
Bidi information of the text |
ParagraphInfo |
Bidi information about a single paragraph |
Enums
BidiClass |
Represents the Unicode character Bidi_Class property, also known as the bidirectional character type. |
BidiClassCategory |
Represents Category of Unicode character |
Constants
PKG_DESCRIPTION |
UNIC component description. |
PKG_NAME |
UNIC component name. |
PKG_VERSION |
UNIC component version. |
UNICODE_VERSION |
The Unicode version of data |
Type Definitions
LevelRun |
A maximal substring of characters with the same embedding level. |