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authorValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
committerValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
commita990de90fe41456a23e58bd087d2f107d321f3a1 (patch)
tree15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/unicode-linebreak/src/shared.rs
parent3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff)
downloadfparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz
fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip
Deleted vendor folder
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-/// Unicode line breaking class.
-#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
-#[repr(u8)]
-pub enum BreakClass {
- // Non-tailorable
- /// Cause a line break (after)
- Mandatory,
- /// Cause a line break (after), except between CR and LF
- CarriageReturn,
- /// Cause a line break (after)
- LineFeed,
- /// Prohibit a line break between the character and the preceding character
- CombiningMark,
- /// Cause a line break (after)
- NextLine,
- /// Do not occur in well-formed text
- Surrogate,
- /// Prohibit line breaks before and after
- WordJoiner,
- /// Provide a break opportunity
- ZeroWidthSpace,
- /// Prohibit line breaks before and after
- NonBreakingGlue,
- /// Enable indirect line breaks
- Space,
- /// Prohibit line breaks within joiner sequences
- ZeroWidthJoiner,
- // Break opportunities
- /// Provide a line break opportunity before and after the character
- BeforeAndAfter,
- /// Generally provide a line break opportunity after the character
- After,
- /// Generally provide a line break opportunity before the character
- Before,
- /// Provide a line break opportunity after the character, except in numeric context
- Hyphen,
- /// Provide a line break opportunity contingent on additional information
- Contingent,
- // Characters prohibiting certain breaks
- /// Prohibit line breaks before
- ClosePunctuation,
- /// Prohibit line breaks before
- CloseParenthesis,
- /// Prohibit line breaks before
- Exclamation,
- /// Allow only indirect line breaks between pairs
- Inseparable,
- /// Allow only indirect line breaks before
- NonStarter,
- /// Prohibit line breaks after
- OpenPunctuation,
- /// Act like they are both opening and closing
- Quotation,
- // Numeric context
- /// Prevent breaks after any and before numeric
- InfixSeparator,
- /// Form numeric expressions for line breaking purposes
- Numeric,
- /// Do not break following a numeric expression
- Postfix,
- /// Do not break in front of a numeric expression
- Prefix,
- /// Prevent a break before, and allow a break after
- Symbol,
- // Other characters
- /// Act like AL when the resolved EAW is N; otherwise, act as ID
- Ambiguous,
- /// Are alphabetic characters or symbols that are used with alphabetic characters
- Alphabetic,
- /// Treat as NS or ID for strict or normal breaking.
- ConditionalJapaneseStarter,
- /// Do not break from following Emoji Modifier
- EmojiBase,
- /// Do not break from preceding Emoji Base
- EmojiModifier,
- /// Form Korean syllable blocks
- HangulLvSyllable,
- /// Form Korean syllable blocks
- HangulLvtSyllable,
- /// Do not break around a following hyphen; otherwise act as Alphabetic
- HebrewLetter,
- /// Break before or after, except in some numeric context
- Ideographic,
- /// Form Korean syllable blocks
- HangulLJamo,
- /// Form Korean syllable blocks
- HangulVJamo,
- /// Form Korean syllable blocks
- HangulTJamo,
- /// Keep pairs together. For pairs, break before and after other classes
- RegionalIndicator,
- /// Provide a line break opportunity contingent on additional, language-specific context analysis
- ComplexContext,
- /// Have as yet unknown line breaking behavior or unassigned code positions
- Unknown,
-}
-
-use BreakClass::{
- After as BA, Alphabetic as AL, Ambiguous as AI, Before as BB, BeforeAndAfter as B2,
- CarriageReturn as CR, CloseParenthesis as CP, ClosePunctuation as CL, CombiningMark as CM,
- ComplexContext as SA, ConditionalJapaneseStarter as CJ, Contingent as CB, EmojiBase as EB,
- EmojiModifier as EM, Exclamation as EX, HangulLJamo as JL, HangulLvSyllable as H2,
- HangulLvtSyllable as H3, HangulTJamo as JT, HangulVJamo as JV, HebrewLetter as HL,
- Hyphen as HY, Ideographic as ID, InfixSeparator as IS, Inseparable as IN, LineFeed as LF,
- Mandatory as BK, NextLine as NL, NonBreakingGlue as GL, NonStarter as NS, Numeric as NU,
- OpenPunctuation as OP, Postfix as PO, Prefix as PR, Quotation as QU, RegionalIndicator as RI,
- Space as SP, Surrogate as SG, Symbol as SY, Unknown as XX, WordJoiner as WJ,
- ZeroWidthJoiner as ZWJ, ZeroWidthSpace as ZW,
-};
-
-/// Ceiling for code points in the Basic Multilingual Place (BMP).
-const BMP_LIMIT: u32 = 0x10000;
-
-/// Shift size for getting index-3 table offset.
-const SHIFT_3: u32 = 4;
-/// Shift size for getting index-2 table offset.
-const SHIFT_2: u32 = 5 + SHIFT_3;
-/// Shift size for getting index-1 table offset.
-const SHIFT_1: u32 = 5 + SHIFT_2;
-/// Shift size for getting BMP block start.
-const BMP_SHIFT: u32 = 6;
-
-const INDEX_2_BLOCK_LENGTH: u32 = 1 << (SHIFT_1 - SHIFT_2);
-const INDEX_3_BLOCK_LENGTH: u32 = 1 << (SHIFT_2 - SHIFT_3);
-const SMALL_DATA_BLOCK_LENGTH: u32 = 1 << SHIFT_3;
-const BMP_DATA_BLOCK_LENGTH: u32 = 1 << BMP_SHIFT;
-
-const ALLOWED_BREAK_BIT: u8 = 0x80;
-const MANDATORY_BREAK_BIT: u8 = 0x40;
-
-#[allow(non_upper_case_globals)]
-const eot: u8 = 43;
-#[allow(non_upper_case_globals)]
-const sot: u8 = 44;