vendor/golang.org/x/text/unicode/bidi/trieval.go

   1 // Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
   2
   3 package bidi
   4
   5 // Class is the Unicode BiDi class. Each rune has a single class.
   6 type Class uint
   7
   8 const (
   9         L       Class = iota // LeftToRight
  10         R                    // RightToLeft
  11         EN                   // EuropeanNumber
  12         ES                   // EuropeanSeparator
  13         ET                   // EuropeanTerminator
  14         AN                   // ArabicNumber
  15         CS                   // CommonSeparator
  16         B                    // ParagraphSeparator
  17         S                    // SegmentSeparator
  18         WS                   // WhiteSpace
  19         ON                   // OtherNeutral
  20         BN                   // BoundaryNeutral
  21         NSM                  // NonspacingMark
  22         AL                   // ArabicLetter
  23         Control              // Control LRO - PDI
  24
  25         numClass
  26
  27         LRO // LeftToRightOverride
  28         RLO // RightToLeftOverride
  29         LRE // LeftToRightEmbedding
  30         RLE // RightToLeftEmbedding
  31         PDF // PopDirectionalFormat
  32         LRI // LeftToRightIsolate
  33         RLI // RightToLeftIsolate
  34         FSI // FirstStrongIsolate
  35         PDI // PopDirectionalIsolate
  36
  37         unknownClass = ^Class(0)
  38 )
  39
  40 var controlToClass = map[rune]Class{
  41         0x202D: LRO, // LeftToRightOverride,
  42         0x202E: RLO, // RightToLeftOverride,
  43         0x202A: LRE, // LeftToRightEmbedding,
  44         0x202B: RLE, // RightToLeftEmbedding,
  45         0x202C: PDF, // PopDirectionalFormat,
  46         0x2066: LRI, // LeftToRightIsolate,
  47         0x2067: RLI, // RightToLeftIsolate,
  48         0x2068: FSI, // FirstStrongIsolate,
  49         0x2069: PDI, // PopDirectionalIsolate,
  50 }
  51
  52 // A trie entry has the following bits:
  53 // 7..5  XOR mask for brackets
  54 // 4     1: Bracket open, 0: Bracket close
  55 // 3..0  Class type
  56
  57 const (
  58         openMask     = 0x10
  59         xorMaskShift = 5
  60 )