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# Copyright (C) 2023 Thomas Weißschuh <thomas@t-8ch.de>
# Extension for asciidoctor to remove unicode dash in first section of manpage
require 'asciidoctor/extensions'
module UnicodeConverter
BEFORE_NAME_SECTION = 1
IN_NAME_SECTION = 2
AFTER_NAME_SECTION = 3
class Preprocessor < Asciidoctor::Extensions::Preprocessor
include Asciidoctor::Logging
def process document, reader
lines = reader.read_lines
state = BEFORE_NAME_SECTION
command = document.attributes['docname'].rpartition('.')[0]
lines.map! do |line|
if state == IN_NAME_SECTION
if line.sub! " \u2013 ", " - " or line.sub! " \u2014 ", " - "
logger.warn "replacing unicode dash in name section of #{document.attributes['docfile']}"
end
if line.start_with? command and not line.include? ',' and not line.start_with? "#{command} - "
logger.warn "adding dash to name section of #{document.attributes['docfile']}"
line.sub! command, "#{command} - "
end
end
if line.start_with? '== '
if state == BEFORE_NAME_SECTION
state = IN_NAME_SECTION
else if state == IN_NAME_SECTION
state = AFTER_NAME_SECTION
end
end
end
line
end
reader.restore_lines lines
reader
end
end
Asciidoctor::Extensions.register do
preprocessor Preprocessor
end
end
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