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Handle ruby 1.8.7 Math.log api difference.

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This commit is contained in:
Chris Eppstein 2012-03-11 21:19:20 -07:00
parent 174fab3616
commit 48aff36331
1 changed files with 3 additions and 1 deletions
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4
lib/compass/sass_extensions/functions/math.rb
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@ -29,7 +29,9 @@ module Compass::SassExtensions::Functions::Math
assert_type number, :Number
assert_type base, :Number
raise Sass::SyntaxError, "base to logarithm must be unitless." unless base.unitless?
Sass::Script::Number.new(Math.log(number.value, base.value), number.numerator_units, number.denominator_units)
result = Math.log(number.value, base.value) rescue Math.log(number.value) / Math.log(base.value)
Sass::Script::Number.new(result, number.numerator_units, number.denominator_units)
end
Sass::Script::Functions.declare :logarithm, [:number]
Sass::Script::Functions.declare :logarithm, [:number, :base]