зеркало из https://github.com/github/ruby.git
78 строки
1.6 KiB
Ruby
78 строки
1.6 KiB
Ruby
# frozen_string_literal: true
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##
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# Outputs RDoc markup with hot backspace action! You will probably need a
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# pager to use this output format.
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#
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# This formatter won't work on 1.8.6 because it lacks String#chars.
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class RDoc::Markup::ToBs < RDoc::Markup::ToRdoc
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##
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# Returns a new ToBs that is ready for hot backspace action!
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def initialize markup = nil
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super
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@in_b = false
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@in_em = false
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end
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##
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# Sets a flag that is picked up by #annotate to do the right thing in
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# #convert_string
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def init_tags
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add_tag :BOLD, '+b', '-b'
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add_tag :EM, '+_', '-_'
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add_tag :TT, '' , '' # we need in_tt information maintained
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end
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##
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# Makes heading text bold.
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def accept_heading heading
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use_prefix or @res << ' ' * @indent
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@res << @headings[heading.level][0]
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@in_b = true
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@res << attributes(heading.text)
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@in_b = false
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@res << @headings[heading.level][1]
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@res << "\n"
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end
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##
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# Turns on or off regexp handling for +convert_string+
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def annotate tag
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case tag
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when '+b' then @in_b = true
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when '-b' then @in_b = false
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when '+_' then @in_em = true
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when '-_' then @in_em = false
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end
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''
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end
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##
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# Calls convert_string on the result of convert_regexp_handling
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def convert_regexp_handling target
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convert_string super
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end
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##
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# Adds bold or underline mixed with backspaces
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def convert_string string
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return string unless @in_b or @in_em
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chars = if @in_b then
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string.chars.map do |char| "#{char}\b#{char}" end
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elsif @in_em then
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string.chars.map do |char| "_\b#{char}" end
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end
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chars.join
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end
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end
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