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--[[
Sample plugin file for highlight 3.1
Invert colours of the original theme
USAGE: highlight -I main.cpp --plug-in=plugin.lua
]]
Description="Invert colours of the original theme"
Categories = {"format" }
-- function to update theme definition
-- optional parameter: theme description
function themeUpdate()
function invert(colour)
if string.match(colour, "#%x+")==nil then
return "#000000"
end
rr=255 - ("0x"..string.match(colour, "%x%x", 2))
gg=255 - ("0x"..string.match(colour, "%x%x", 4))
bb=255 - ("0x"..string.match(colour, "%x%x", 6))
return string.format("#%02x%02x%02x", rr, gg, bb)
end
Description = Description .. " (inverted)"
Default.Colour=invert(Default.Colour)
Canvas.Colour=invert(Canvas.Colour)
Number.Colour=invert(Number.Colour)
Escape.Colour=invert(Escape.Colour)
String.Colour=invert(String.Colour)
StringPreProc.Colour=invert(StringPreProc.Colour)
BlockComment.Colour=invert(BlockComment.Colour)
LineComment.Colour=invert(LineComment.Colour)
PreProcessor.Colour=invert(PreProcessor.Colour)
LineNum.Colour=invert(LineNum.Colour)
Operator.Colour=invert(Operator.Colour)
for k, v in pairs(Keywords) do
v.Colour=invert(v.Colour)
end
end
--The Plugins array assigns code chunks to themes or language definitions.
--The chunks are interpreted after the theme or lang file were parsed,
--so you can refer to elements of these files
Plugins={
{ Type="theme", Chunk=themeUpdate }
}
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