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Match HTML colors in a way that actually works in extract_color

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Lua patterns don't have optional capture groups, so instead make the
contents of the capture groups optional.

Closes #1575.
This commit is contained in:
Thomas Goyne 2013-02-12 17:09:04 -08:00
parent 959be0a64a
commit c83fff12a9
1 changed files with 2 additions and 2 deletions
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aegisub/automation/include/utils-auto4.lua
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@ -104,9 +104,9 @@ function extract_color(s)
end
-- Ok how about HTML format then?
r, g, b, a = s:match("#(%x%x)(%x%x)?(%x%x)?(%x%x)?")
r, g, b, a = s:match("#(%x%x)(%x?%x?)(%x?%x?)(%x?%x?)")
if r then
return tonumber(r or 0, 16), tonumber(g or 0, 16), tonumber(b or 0, 16), tonumber(a or 0, 16)
return tonumber(r, 16), tonumber(g, 16) or 0, tonumber(b, 16) or 0, tonumber(a, 16) or 0
end
-- Failed...