fix wrong git ignore
This commit is contained in:
496
internal/pdf/model/textencoding/symbol.go
Normal file
496
internal/pdf/model/textencoding/symbol.go
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@@ -0,0 +1,496 @@
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package textencoding
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import (
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"gitea.tecamino.com/paadi/pdfmerge/internal/pdf/common"
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"gitea.tecamino.com/paadi/pdfmerge/internal/pdf/core"
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)
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// Encoding for Symbol font.
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type SymbolEncoder struct {
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}
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func NewSymbolEncoder() SymbolEncoder {
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encoder := SymbolEncoder{}
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return encoder
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}
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// Convert a raw utf8 string (series of runes) to an encoded string (series of character codes) to be used in PDF.
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func (enc SymbolEncoder) Encode(raw string) string {
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encoded := []byte{}
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for _, rune := range raw {
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code, found := enc.RuneToCharcode(rune)
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if !found {
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continue
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}
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encoded = append(encoded, code)
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}
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return string(encoded)
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}
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// Conversion between character code and glyph name.
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// The bool return flag is true if there was a match, and false otherwise.
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func (enc SymbolEncoder) CharcodeToGlyph(code byte) (string, bool) {
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glyph, has := symbolEncodingCharcodeToGlyphMap[code]
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if !has {
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common.Log.Debug("Symbol encoding error: unable to find charcode->glyph entry (%v)", code)
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return "", false
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}
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return glyph, true
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}
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// Conversion between glyph name and character code.
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// The bool return flag is true if there was a match, and false otherwise.
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func (enc SymbolEncoder) GlyphToCharcode(glyph string) (byte, bool) {
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code, found := symbolEncodingGlyphToCharcodeMap[glyph]
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if !found {
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common.Log.Debug("Symbol encoding error: unable to find glyph->charcode entry (%s)", glyph)
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return 0, false
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}
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return code, found
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}
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// Convert rune to character code.
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// The bool return flag is true if there was a match, and false otherwise.
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func (enc SymbolEncoder) RuneToCharcode(val rune) (byte, bool) {
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glyph, found := runeToGlyph(val, glyphlistRuneToGlyphMap)
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if !found {
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common.Log.Debug("Symbol encoding error: unable to find rune->glyph entry (%v)", val)
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return 0, false
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}
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code, found := symbolEncodingGlyphToCharcodeMap[glyph]
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if !found {
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common.Log.Debug("Symbol encoding error: unable to find glyph->charcode entry (%s)", glyph)
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return 0, false
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}
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return code, true
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}
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// Convert character code to rune.
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// The bool return flag is true if there was a match, and false otherwise.
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func (enc SymbolEncoder) CharcodeToRune(charcode byte) (rune, bool) {
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glyph, found := symbolEncodingCharcodeToGlyphMap[charcode]
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if !found {
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common.Log.Debug("Symbol encoding error: unable to find charcode->glyph entry (%d)", charcode)
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return 0, false
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}
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val, found := glyphToRune(glyph, glyphlistGlyphToRuneMap)
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if !found {
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return 0, false
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}
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return val, true
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}
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// Convert rune to glyph name.
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// The bool return flag is true if there was a match, and false otherwise.
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func (enc SymbolEncoder) RuneToGlyph(val rune) (string, bool) {
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return runeToGlyph(val, glyphlistRuneToGlyphMap)
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}
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// Convert glyph to rune.
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// The bool return flag is true if there was a match, and false otherwise.
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func (enc SymbolEncoder) GlyphToRune(glyph string) (rune, bool) {
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return glyphToRune(glyph, glyphlistGlyphToRuneMap)
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}
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// Convert to PDF Object.
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func (enc SymbolEncoder) ToPdfObject() core.PdfObject {
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dict := core.MakeDict()
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dict.Set("Type", core.MakeName("Encoding"))
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// Returning an empty Encoding object with no differences. Indicates that we are using the font's built-in
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// encoding.
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return core.MakeIndirectObject(dict)
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}
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// Charcode to Glyph map (Symbol encoding)
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var symbolEncodingCharcodeToGlyphMap map[byte]string = map[byte]string{
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32: "space",
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33: "exclam",
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34: "universal",
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35: "numbersign",
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36: "existential",
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37: "percent",
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38: "ampersand",
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39: "suchthat",
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40: "parenleft",
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41: "parenright",
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42: "asteriskmath",
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43: "plus",
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44: "comma",
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45: "minus",
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46: "period",
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47: "slash",
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48: "zero",
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49: "one",
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50: "two",
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51: "three",
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52: "four",
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53: "five",
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54: "six",
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55: "seven",
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56: "eight",
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57: "nine",
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58: "colon",
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59: "semicolon",
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60: "less",
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61: "equal",
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62: "greater",
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63: "question",
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64: "congruent",
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65: "Alpha",
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66: "Beta",
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67: "Chi",
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68: "Delta",
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69: "Epsilon",
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70: "Phi",
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71: "Gamma",
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72: "Eta",
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73: "Iota",
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74: "theta1",
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75: "Kappa",
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76: "Lambda",
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77: "Mu",
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78: "Nu",
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79: "Omicron",
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80: "Pi",
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81: "Theta",
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82: "Rho",
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83: "Sigma",
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84: "Tau",
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85: "Upsilon",
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86: "sigma1",
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87: "Omega",
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88: "Xi",
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89: "Psi",
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90: "Zeta",
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91: "bracketleft",
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92: "therefore",
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93: "bracketright",
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94: "perpendicular",
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95: "underscore",
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96: "radicalex",
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97: "alpha",
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98: "beta",
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99: "chi",
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100: "delta",
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101: "epsilon",
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102: "phi",
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103: "gamma",
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104: "eta",
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105: "iota",
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106: "phi1",
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107: "kappa",
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108: "lambda",
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109: "mu",
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110: "nu",
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111: "omicron",
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112: "pi",
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113: "theta",
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114: "rho",
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115: "sigma",
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116: "tau",
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117: "upsilon",
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118: "omega1",
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119: "omega",
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120: "xi",
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121: "psi",
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122: "zeta",
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123: "braceleft",
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124: "bar",
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125: "braceright",
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126: "similar",
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160: "Euro",
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161: "Upsilon1",
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162: "minute",
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163: "lessequal",
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164: "fraction",
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165: "infinity",
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166: "florin",
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167: "club",
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168: "diamond",
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169: "heart",
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170: "spade",
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171: "arrowboth",
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172: "arrowleft",
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173: "arrowup",
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174: "arrowright",
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175: "arrowdown",
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176: "degree",
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177: "plusminus",
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178: "second",
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179: "greaterequal",
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180: "multiply",
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181: "proportional",
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182: "partialdiff",
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183: "bullet",
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184: "divide",
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185: "notequal",
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186: "equivalence",
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187: "approxequal",
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188: "ellipsis",
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189: "arrowvertex",
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190: "arrowhorizex",
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191: "carriagereturn",
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192: "aleph",
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193: "Ifraktur",
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194: "Rfraktur",
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195: "weierstrass",
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196: "circlemultiply",
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197: "circleplus",
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198: "emptyset",
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199: "intersection",
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200: "union",
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201: "propersuperset",
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202: "reflexsuperset",
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203: "notsubset",
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204: "propersubset",
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205: "reflexsubset",
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206: "element",
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207: "notelement",
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208: "angle",
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209: "gradient",
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210: "registerserif",
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211: "copyrightserif",
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212: "trademarkserif",
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213: "product",
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214: "radical",
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215: "dotmath",
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216: "logicalnot",
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217: "logicaland",
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218: "logicalor",
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219: "arrowdblboth",
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220: "arrowdblleft",
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221: "arrowdblup",
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222: "arrowdblright",
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223: "arrowdbldown",
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224: "lozenge",
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225: "angleleft",
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226: "registersans",
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227: "copyrightsans",
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228: "trademarksans",
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229: "summation",
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230: "parenlefttp",
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231: "parenleftex",
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232: "parenleftbt",
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233: "bracketlefttp",
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234: "bracketleftex",
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235: "bracketleftbt",
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236: "bracelefttp",
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237: "braceleftmid",
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238: "braceleftbt",
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239: "braceex",
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241: "angleright",
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242: "integral",
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243: "integraltp",
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244: "integralex",
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245: "integralbt",
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246: "parenrighttp",
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247: "parenrightex",
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248: "parenrightbt",
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249: "bracketrighttp",
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250: "bracketrightex",
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251: "bracketrightbt",
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252: "bracerighttp",
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253: "bracerightmid",
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254: "bracerightbt",
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}
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// Glyph to charcode map (Symbol encoding).
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var symbolEncodingGlyphToCharcodeMap map[string]byte = map[string]byte{
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"space": 32,
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"exclam": 33,
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"universal": 34,
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"numbersign": 35,
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"existential": 36,
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"percent": 37,
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"ampersand": 38,
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"suchthat": 39,
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"parenleft": 40,
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"parenright": 41,
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"asteriskmath": 42,
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"plus": 43,
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"comma": 44,
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"minus": 45,
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"period": 46,
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"slash": 47,
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"zero": 48,
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"one": 49,
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"two": 50,
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"three": 51,
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"four": 52,
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"five": 53,
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"six": 54,
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"seven": 55,
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"eight": 56,
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"nine": 57,
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"colon": 58,
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"semicolon": 59,
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"less": 60,
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"equal": 61,
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"greater": 62,
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"question": 63,
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"congruent": 64,
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"Alpha": 65,
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"Beta": 66,
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"Chi": 67,
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"Delta": 68,
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"Epsilon": 69,
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"Phi": 70,
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"Gamma": 71,
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"Eta": 72,
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"Iota": 73,
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"theta1": 74,
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"Kappa": 75,
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"Lambda": 76,
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"Mu": 77,
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"Nu": 78,
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"Omicron": 79,
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"Pi": 80,
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"Theta": 81,
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"Rho": 82,
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"Sigma": 83,
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"Tau": 84,
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"Upsilon": 85,
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"sigma1": 86,
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"Omega": 87,
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"Xi": 88,
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"Psi": 89,
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"Zeta": 90,
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"bracketleft": 91,
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"therefore": 92,
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"bracketright": 93,
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"perpendicular": 94,
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"underscore": 95,
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"radicalex": 96,
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"alpha": 97,
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"beta": 98,
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"chi": 99,
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"delta": 100,
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"epsilon": 101,
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"phi": 102,
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"gamma": 103,
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"eta": 104,
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"iota": 105,
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"phi1": 106,
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"kappa": 107,
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"lambda": 108,
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"mu": 109,
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"nu": 110,
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"omicron": 111,
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"pi": 112,
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"theta": 113,
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"rho": 114,
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"sigma": 115,
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"tau": 116,
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"upsilon": 117,
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"omega1": 118,
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"omega": 119,
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"xi": 120,
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"psi": 121,
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"zeta": 122,
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"braceleft": 123,
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"bar": 124,
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"braceright": 125,
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"similar": 126,
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"Euro": 160,
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"Upsilon1": 161,
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"minute": 162,
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"lessequal": 163,
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"fraction": 164,
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"infinity": 165,
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"florin": 166,
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"club": 167,
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"diamond": 168,
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"heart": 169,
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"spade": 170,
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"arrowboth": 171,
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"arrowleft": 172,
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"arrowup": 173,
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"arrowright": 174,
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"arrowdown": 175,
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"degree": 176,
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"plusminus": 177,
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"second": 178,
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"greaterequal": 179,
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"multiply": 180,
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"proportional": 181,
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"partialdiff": 182,
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"bullet": 183,
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"divide": 184,
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"notequal": 185,
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"equivalence": 186,
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"approxequal": 187,
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"ellipsis": 188,
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"arrowvertex": 189,
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"arrowhorizex": 190,
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"carriagereturn": 191,
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"aleph": 192,
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"Ifraktur": 193,
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"Rfraktur": 194,
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"weierstrass": 195,
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"circlemultiply": 196,
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"circleplus": 197,
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"emptyset": 198,
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"intersection": 199,
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"union": 200,
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"propersuperset": 201,
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"reflexsuperset": 202,
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"notsubset": 203,
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"propersubset": 204,
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"reflexsubset": 205,
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"element": 206,
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"notelement": 207,
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"angle": 208,
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"gradient": 209,
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"registerserif": 210,
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"copyrightserif": 211,
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"trademarkserif": 212,
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"product": 213,
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"radical": 214,
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"dotmath": 215,
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"logicalnot": 216,
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"logicaland": 217,
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"logicalor": 218,
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"arrowdblboth": 219,
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"arrowdblleft": 220,
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"arrowdblup": 221,
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"arrowdblright": 222,
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"arrowdbldown": 223,
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"lozenge": 224,
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"angleleft": 225,
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"registersans": 226,
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"copyrightsans": 227,
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"trademarksans": 228,
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"summation": 229,
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"parenlefttp": 230,
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"parenleftex": 231,
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"parenleftbt": 232,
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"bracketlefttp": 233,
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"bracketleftex": 234,
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"bracketleftbt": 235,
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"bracelefttp": 236,
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"braceleftmid": 237,
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"braceleftbt": 238,
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"braceex": 239,
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"angleright": 241,
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"integral": 242,
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"integraltp": 243,
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"integralex": 244,
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"integralbt": 245,
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"parenrighttp": 246,
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"parenrightex": 247,
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"parenrightbt": 248,
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"bracketrighttp": 249,
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"bracketrightex": 250,
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"bracketrightbt": 251,
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"bracerighttp": 252,
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"bracerightmid": 253,
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"bracerightbt": 254,
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}
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