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Contents
require "asciidoctor"
module Giblish
# Expands any 'include' preprocessor directives found in the given document
# and merges the the lines in the included document with the ones
# from the including document.
# Nesting of includes is supported to the given level.
#
# NOTE: Only includes of asciidoc files are supported, other includes (eg url)
# are silently dropped.
class ExpandAdoc
INCLUDE_DIRECTIVE_REGEX = /^(\\)?include::([^\[][^\[]*)\[(.+)?\]$/
def initialize(document, target_lines, max_depth = 3)
source_lines = document.reader.source_lines
source_lines.each do |line|
if INCLUDE_DIRECTIVE_REGEX =~ line
next unless max_depth > 0
p = resolve_include_path(document, $2, $3)
next if p.nil?
sub_doc = Asciidoctor.load_file(p, {parse: false, safe: :unsafe})
ExpandAdoc.new(sub_doc, target_lines, max_depth - 1)
else
target_lines << wash_line(document, line)
end
end
end
def resolve_include_path(document, target, attrlist)
target = replace_attrs(document.attributes, target)
parsed_attrs = document.parse_attributes attrlist, [], sub_input: true
# use an asciidoctor-internal method to resolve the path in an attempt to keep compatibility
inc_path, target_type, _relpath = document.reader.send(:resolve_include_path, target, attrlist, parsed_attrs)
return nil unless target_type == :file
inc_path
end
def wash_line(document, line)
replace_attrs(document.attributes, line)
end
# replace {a_doc_attr} with the value of the attribute
def replace_attrs(attrs, line)
# find all '{...}' occurrences
m_arr = line.scan(/\{\w+\}/)
# replace each found occurence with its doc attr if exists
m_arr.inject(line) do |memo, match|
attrs.key?(match[1..-2]) ? memo.gsub(match.to_s, attrs[match[1..-2]]) : memo
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems