Module:Color contrast: Difference between revisions
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(typos) |
(better error checking) |
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local style = (args[1] or ''):lower() |
local style = (args[1] or ''):lower() |
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local bg, fg = (args[2] or 'white'), (args[3] or 'black') |
local bg, fg = (args[2] or 'white'), (args[3] or 'black') |
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local lum_bg, lum_fg = 1, 0 |
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local slist = mw.text.split(style or '', ';') |
local slist = mw.text.split(style or '', ';') |
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| Line 161: | Line 162: | ||
v = v or '' |
v = v or '' |
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if (k:match('^[%s]*(background)[%s]*$') or k:match('^[%s]*(background-color)[%s]*$')) then |
if (k:match('^[%s]*(background)[%s]*$') or k:match('^[%s]*(background-color)[%s]*$')) then |
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local lum = color2lum(v) |
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if( lum ~= '' ) then bg, lum_bg = v, lum end |
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elseif (k:match('^[%s]*(color)[%s]*$')) then |
elseif (k:match('^[%s]*(color)[%s]*$')) then |
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local lum = color2lum(v) |
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if( lum ~= '' ) then bg, lum_fg = v, lum end |
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end |
end |
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end |
end |
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if lum_bg > lum_fg then |
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return (lum_bg + 0.05)/(lum_fg + 0.05) |
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else |
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return (lum_fg + 0.05)/(lum_bg + 0.05) |
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end |
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end |
end |
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