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1 # -*- coding: utf-8 -*- |
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2 """ |
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3 sphinx.util.texescape |
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4 ~~~~~~~~~~~~~~~~~~~~~ |
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5 |
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6 TeX escaping helper. |
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7 |
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8 :copyright: 2008 by Georg Brandl. |
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9 :license: BSD. |
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10 """ |
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11 |
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12 tex_replacements = [ |
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13 # map TeX special chars |
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14 (u'$', ur'\$'), |
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15 (u'%', ur'\%'), |
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16 (u'&', ur'\&'), |
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17 (u'#', ur'\#'), |
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18 (u'_', ur'\_'), |
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19 (u'{', ur'\{'), |
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20 (u'}', ur'\}'), |
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21 (u'[', ur'{[}'), |
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22 (u']', ur'{]}'), |
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23 (u'`', ur'{}`'), |
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24 (u'\\',ur'\textbackslash{}'), |
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25 (u'~', ur'\textasciitilde{}'), |
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26 (u'<', ur'\textless{}'), |
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27 (u'>', ur'\textgreater{}'), |
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28 (u'^', ur'\textasciicircum{}'), |
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29 # map special Unicode characters to TeX commands |
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30 (u'¶', ur'\P{}'), |
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31 (u'§', ur'\S{}'), |
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32 (u'€', ur'\texteuro{}'), |
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33 (u'∞', ur'\(\infty\)'), |
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34 (u'±', ur'\(\pm\)'), |
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35 (u'→', ur'\(\rightarrow\)'), |
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36 (u'‣', ur'\(\rightarrow\)'), |
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37 # used to separate -- in options |
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38 (u'', ur'{}'), |
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39 # map some special Unicode characters to similar ASCII ones |
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40 (u'─', ur'-'), |
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41 (u'⎽', ur'\_'), |
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42 (u'╲', ur'\textbackslash{}'), |
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43 (u'│', ur'|'), |
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44 (u'ℯ', ur'e'), |
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45 (u'ⅈ', ur'i'), |
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46 (u'₁', ur'1'), |
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47 (u'₂', ur'2'), |
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48 # map Greek alphabet |
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49 (u'α', ur'\(\alpha\)'), |
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50 (u'β', ur'\(\beta\)'), |
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51 (u'γ', ur'\(\gamma\)'), |
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52 (u'δ', ur'\(\delta\)'), |
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53 (u'ε', ur'\(\epsilon\)'), |
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54 (u'ζ', ur'\(\zeta\)'), |
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55 (u'η', ur'\(\eta\)'), |
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56 (u'θ', ur'\(\theta\)'), |
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57 (u'ι', ur'\(\iota\)'), |
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58 (u'κ', ur'\(\kappa\)'), |
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59 (u'λ', ur'\(\lambda\)'), |
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60 (u'μ', ur'\(\mu\)'), |
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61 (u'ν', ur'\(\nu\)'), |
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62 (u'ξ', ur'\(\xi\)'), |
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63 (u'ο', ur'o'), |
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64 (u'π', ur'\(\pi\)'), |
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65 (u'ρ', ur'\(\rho\)'), |
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66 (u'σ', ur'\(\sigma\)'), |
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67 (u'τ', ur'\(\tau\)'), |
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68 (u'υ', u'\\(\\upsilon\\)'), |
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69 (u'φ', ur'\(\phi\)'), |
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70 (u'χ', ur'\(\chi\)'), |
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71 (u'ψ', ur'\(\psi\)'), |
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72 (u'ω', ur'\(\omega\)'), |
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73 (u'Α', ur'A'), |
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74 (u'Β', ur'B'), |
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75 (u'Γ', ur'\(\Gamma\)'), |
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76 (u'Δ', ur'\(\Delta\)'), |
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77 (u'Ε', ur'E'), |
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78 (u'Ζ', ur'Z'), |
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79 (u'Η', ur'H'), |
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80 (u'Θ', ur'\(\Theta\)'), |
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81 (u'Ι', ur'I'), |
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82 (u'Κ', ur'K'), |
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83 (u'Λ', ur'\(\Lambda\)'), |
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84 (u'Μ', ur'M'), |
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85 (u'Ν', ur'N'), |
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86 (u'Ξ', ur'\(\Xi\)'), |
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87 (u'Ο', ur'O'), |
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88 (u'Π', ur'\(\Pi\)'), |
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89 (u'Ρ', ur'P'), |
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90 (u'Σ', ur'\(\Sigma\)'), |
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91 (u'Τ', ur'T'), |
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92 (u'Υ', u'\\(\\Upsilon\\)'), |
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93 (u'Φ', ur'\(\Phi\)'), |
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94 (u'Χ', ur'X'), |
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95 (u'Ψ', ur'\(\Psi\)'), |
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96 (u'Ω', ur'\(\Omega\)'), |
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97 (u'Ω', ur'\(\Omega\)'), |
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98 ] |
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99 |
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100 tex_escape_map = {} |
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101 tex_hl_escape_map = {} |
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102 _new_cmd_chars = {ord(u'\\'): u'@', ord(u'{'): u'[', ord(u'}'): u']'} |
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103 |
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104 def init(): |
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105 for a, b in tex_replacements: |
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106 tex_escape_map[ord(a)] = b |
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107 |
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108 for a, b in tex_replacements: |
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109 if a in u'[]{}\\': continue |
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110 tex_hl_escape_map[ord(a)] = b.translate(_new_cmd_chars) |