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49 lines
910 B
49 lines
910 B
4 years ago
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////
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Included in:
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- user-manual: Extensions: Block processor example
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////
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Purpose::
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Register a custom block style named `shout` that uppercases all the words and converts periods to exclamation points.
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.sample-with-shout-block.adoc
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```
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[shout]
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The time is now. Get a move on.
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```
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.ShoutBlock
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```ruby
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require 'asciidoctor'
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require 'asciidoctor/extensions'
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class ShoutBlock < Asciidoctor::Extensions::BlockProcessor
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PeriodRx = /\.(?= |$)/
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use_dsl
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named :shout
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on_context :paragraph
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name_positional_attributes 'vol'
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parse_content_as :simple
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def process parent, reader, attrs
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volume = ((attrs.delete 'vol') || 1).to_i
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create_paragraph parent, (reader.lines.map {|l| l.upcase.gsub PeriodRx, '!' * volume }), attrs
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end
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end
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```
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.Usage
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```ruby
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Asciidoctor::Extensions.register do
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block ShoutBlock
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end
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Asciidoctor.convert_file 'sample-with-shout-block.adoc', :safe => :safe
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```
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