annotate framework/env/encode/format_options.lua @ 569:5b19007574de
New argument active_link_attr for env.ui.paginate{...}
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jbe |
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Wed Oct 13 17:21:44 2021 +0200 (2021-10-13) |
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9fdfb27f8e67 |
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1 --[[--
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2 string = -- part of string to be used as __format information
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3 encode.format_options(
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4 params -- arguments for format function
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5 )
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6
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7 This function is used by encode.format_info(...).
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8
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9 --]]--
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10
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11 function encode.format_options(params)
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12 local params = params or {}
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13 local result_parts = {}
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14 for key, value in pairs(params) do
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15 if type(key) == "string" then
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16 if string.find(key, "^[A-Za-z][A-Za-z0-9_]*$") then
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17 table.insert(result_parts, "-")
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18 table.insert(result_parts, key)
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19 table.insert(result_parts, "-")
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20 local t = type(value)
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21 if t == "string" then
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22 value = string.gsub(value, "\\", "\\\\")
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23 value = string.gsub(value, "'", "\\'")
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24 table.insert(result_parts, "'")
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25 table.insert(result_parts, value)
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26 table.insert(result_parts, "'")
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27 elseif t == "number" then
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28 table.insert(result_parts, tostring(value))
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29 elseif t == "boolean" then
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30 table.insert(result_parts, value and "true" or "false")
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31 else
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32 error("Format parameter table contained value of unsupported type " .. t .. ".")
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33 end
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34 else
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35 error('Format parameter table contained invalid key "' .. key .. '".')
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36 end
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37 end
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38 end
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39 return table.concat(result_parts)
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40 end
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