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4de2be8c5f
To use, just include `Jekyll::LiquidExtensions` as you please:
```ruby
class SayHi < Liquid::Tag
include Jekyll::LiquidExtensions
def initialize(tag_name, markup, tokens)
@markup = markup.strip
end
def render(context)
"hi #{lookup_variable(context, @markup)}"
end
end
```
Fixes #2071.
23 lines
497 B
Ruby
23 lines
497 B
Ruby
module Jekyll
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module LiquidExtensions
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# Lookup a Liquid variable in the given context.
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#
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# context - the Liquid context in question.
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# variable - the variable name, as a string.
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#
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# Returns the value of the variable in the context
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# or the variable name if not found.
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def lookup_variable(context, variable)
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lookup = context
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variable.split(".").each do |value|
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lookup = lookup[value]
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end
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lookup || variable
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end
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end
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end
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