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require 'asciidoctor'
require 'asciidoctor/extensions'
require 'asciidoctor/converter/docbook5'
require 'asciidoctor/converter/html5'
module Git
module Documentation
class LinkGitProcessor < Asciidoctor::Extensions::InlineMacroProcessor
use_dsl
named :chrome
def process(parent, target, attrs)
prefix = parent.document.attr('git-relative-html-prefix')
if parent.document.doctype == 'book'
"<ulink url=\"#{prefix}#{target}.html\">" \
"#{target}(#{attrs[1]})</ulink>"
elsif parent.document.basebackend? 'html'
%(<a href="#{prefix}#{target}.html">#{target}(#{attrs[1]})</a>)
elsif parent.document.basebackend? 'docbook'
"<citerefentry>\n" \
"<refentrytitle>#{target}</refentrytitle>" \
"<manvolnum>#{attrs[1]}</manvolnum>\n" \
"</citerefentry>"
end
end
end
class DocumentPostProcessor < Asciidoctor::Extensions::Postprocessor
def process document, output
if document.basebackend? 'docbook'
output = output.sub(/<refmiscinfo class="source">.*?<\/refmiscinfo>/, "")
output = output.sub(/<refmiscinfo class="manual">.*?<\/refmiscinfo>/, "")
output = output.sub(/<date>.*?<\/date>/, "<date>@GIT_DATE@</date>")
new_tags = "" \
"<refmiscinfo class=\"source\">Git @GIT_VERSION@</refmiscinfo>\n" \
"<refmiscinfo class=\"manual\">Git Manual</refmiscinfo>\n"
output = output.sub(/<\/refmeta>/, new_tags + "</refmeta>")
end
output
end
end
class SynopsisBlock < Asciidoctor::Extensions::BlockProcessor
use_dsl
named :synopsis
parse_content_as :simple
def process parent, reader, attrs
outlines = reader.lines.map do |l|
l.gsub(/(\.\.\.?)([^\]$\. ])/, '{empty}`\1`{empty}\2')
.gsub(%r{([\[\] |()>]|^)([-a-zA-Z0-9:+=~@,/_^\$\\\*]+)}, '\1{empty}`\2`{empty}')
.gsub(/(<[-a-zA-Z0-9.]+>)/, '__\\1__')
.gsub(']', ']{empty}')
end
create_block parent, :verse, outlines, attrs
end
end
class GitDBConverter < Asciidoctor::Converter::DocBook5Converter
extend Asciidoctor::Converter::Config
register_for 'docbook5'
def convert_inline_quoted node
if (type = node.type) == :asciimath
# NOTE fop requires jeuclid to process mathml markup
asciimath_available? ? %(<inlineequation>#{(::AsciiMath.parse node.text).to_mathml 'mml:', 'xmlns:mml' => 'http://www.w3.org/1998/Math/MathML'}</inlineequation>) : %(<inlineequation><mathphrase><![CDATA[#{node.text}]]></mathphrase></inlineequation>)
elsif type == :latexmath
# unhandled math; pass source to alt and required mathphrase element; dblatex will process alt as LaTeX math
%(<inlineequation><alt><![CDATA[#{equation = node.text}]]></alt><mathphrase><![CDATA[#{equation}]]></mathphrase></inlineequation>)
elsif type == :monospaced
node.text.gsub(/(\.\.\.?)([^\]$\.])/, '<literal>\1</literal>\2')
.gsub(/^\.\.\.?$/, '<literal>\0</literal>')
.gsub(%r{([\[\s|()>.]|^|\]|>)(\.?([-a-zA-Z0-9:+=~@/_^\$\\\*]+\.{0,2})+|,)}, '\1<literal>\2</literal>')
.gsub(/(<[-a-zA-Z0-9.]+>)/, '<emphasis>\1</emphasis>')
else
open, close, supports_phrase = QUOTE_TAGS[type]
text = node.text
if node.role
if supports_phrase
quoted_text = %(#{open}<phrase role="#{node.role}">#{text}</phrase>#{close})
else
quoted_text = %(#{open.chop} role="#{node.role}">#{text}#{close})
end
else
quoted_text = %(#{open}#{text}#{close})
end
node.id ? %(<anchor#{common_attributes node.id, nil, text}/>#{quoted_text}) : quoted_text
end
end
end
# register a html5 converter that takes in charge to convert monospaced text into Git style synopsis
class GitHTMLConverter < Asciidoctor::Converter::Html5Converter
extend Asciidoctor::Converter::Config
register_for 'html5'
def convert_inline_quoted node
if node.type == :monospaced
node.text.gsub(/(\.\.\.?)([^\]$.])/, '<code>\1</code>\2')
.gsub(/^\.\.\.?$/, '<code>\0</code>')
.gsub(%r{([\[\s|()>.]|^|\]|>)(\.?([-a-zA-Z0-9:+=~@,/_^\$\\\*]+\.{0,2})+)}, '\1<code>\2</code>')
.gsub(/(<[-a-zA-Z0-9.]+>)/, '<em>\1</em>')
else
open, close, tag = QUOTE_TAGS[node.type]
if node.id
class_attr = node.role ? %( class="#{node.role}") : ''
if tag
%(#{open.chop} id="#{node.id}"#{class_attr}>#{node.text}#{close})
else
%(<span id="#{node.id}"#{class_attr}>#{open}#{node.text}#{close}</span>)
end
elsif node.role
if tag
%(#{open.chop} class="#{node.role}">#{node.text}#{close})
else
%(<span class="#{node.role}">#{open}#{node.text}#{close}</span>)
end
else
%(#{open}#{node.text}#{close})
end
end
end
end
end
end
Asciidoctor::Extensions.register do
inline_macro Git::Documentation::LinkGitProcessor, :linkgit
block Git::Documentation::SynopsisBlock
postprocessor Git::Documentation::DocumentPostProcessor
end
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