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https://github.com/cirosantilli/linux-kernel-module-cheat.git
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40 lines
1.0 KiB
Ruby
40 lines
1.0 KiB
Ruby
#!/usr/bin/env ruby
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# https://cirosantilli.com/linux-kernel-module-cheat#asciidoctor-link-target-up-rb
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require 'asciidoctor'
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require 'asciidoctor/extensions'
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class LinkTargetUp < Asciidoctor::Extensions::InlineMacroProcessor
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use_dsl
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named :link
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ExternalLinkRegex = /^https?:\/\//
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def target_base
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# Return an absolute path here because you will
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# often want your out/ to be a symlink to your hard
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# disk, and doing just '..' in that case breaks.
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#
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# The downside is that you can't move the repo around
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# and still have the HTML work, but other Buildroot things
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# will likely break anyways in that case, so this is
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# the least of worries.
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File.expand_path('..', __dir__)
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end
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def process parent, target, attrs
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text = attrs[1]
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if text.nil? || text.empty?
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text = target
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end
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if !ExternalLinkRegex.match?(target)
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target = File.join(target_base, target)
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end
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create_anchor parent, text, type: :link, target: target
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end
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end
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Asciidoctor::Extensions.register do
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inline_macro LinkTargetUp
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end
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