annotate framework/env/parse/_pre_fold.lua @ 405:c5f9a1b2f225
Updated year of copyright notice
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jbe |
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Wed Jan 06 02:54:45 2016 +0100 (2016-01-06) |
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9fdfb27f8e67 |
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1 function parse._pre_fold(str)
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2 local str = str
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3 local special_chars = charset.get_data().special_chars
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4 local function replace(name, dst)
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5 local src = special_chars[name]
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6 if src then
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7 local pattern = string.gsub(src, "[][()^$%%]", "%%%1")
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8 str = string.gsub(str, pattern, dst)
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9 end
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10 end
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11 replace("nobreak_space", " ")
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12 replace("minus_sign", "-")
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13 replace("hyphen_sign", "-")
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14 replace("nobreak_hyphen", "-")
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15 replace("figure_dash", "-")
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16 str = string.gsub(str, "\t+", " ")
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17 str = string.gsub(str, "^ +", "")
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18 str = string.gsub(str, " +$", "")
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19 str = string.gsub(str, " +", " ")
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20 return str
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21 end
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