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#!/usr/bin/env ruby -KU
require 'rexml/document' # for SVG and bibxml acrobatics
require 'yaml'
require 'shellwords'
require 'fileutils'
require_relative '../lib/kramdown-rfc/rfc8792'
require_relative '../lib/kramdown-rfc/rexml-all-text.rb'
def clean(s)
s.gsub!(/\//, ":")
s.gsub!(/\A([-.]+)/) {"_" * $1.size }
s.gsub!(/[^-.:\w]+/, "-")
s
end
$seen_slugs = {}
def slugify_like_xml2rfc(s, delta = 0)
s = s.unicode_normalize(:nfkd).force_encoding(Encoding::ASCII).scrub('').downcase
s.gsub!(/[^-\w\s\/]/, '')
s = s.strip
s.gsub!(/[-\s\/]/, '-')
n = 32 - delta
nmax = [s.size, 40 - delta].min
while $seen_slugs[slugex = s[0...n]] && n < nmax
n += 1
end
if $seen_slugs[slugex]
m = 2
while $seen_slugs[slugex = "#{s[0...n]}-#{m}"]
m += 1
if m == 1000
raise ArgumentError, "Can't build distinguishable slug for '#{s}'"
end
end
end
$seen_slugs[slugex] = s
slugex
end
target = nil
dir = nil
out_type = out_name = nil
unfold = true
targets = [:list, :files, :zip, :yaml]
require 'optparse'
begin
op = OptionParser.new do |opts|
opts.banner = "Usage: kramdown-rfc-extract-sourcecode [options] document.xml"
opts.on("-tFMT", "--to=FMT", targets, "Target format #{targets.map(&:to_s)}") do |v|
target = v
end
opts.on("-dDIR", "--dir=DIR", "Target directory (default: sourcecode)") do |v|
dir = v
end
opts.on("-xTYPE/NAME", "--extract=TYPE/NAME", "Extract single item to stdout") do |v|
target = :stdout
out_type, out_name = v.split("/", 2)
end
opts.on("-f", "--[no-]unfold", "RFC8792-unfold (default: yes)") do |v|
unfold = v
end
end
op.parse!
rescue Exception => e
warn e
exit 1
end
if dir
target ||= :files
unless [:files, :zip].include? target
warn "** Unused argument --dir=#{dir}"
end
end
dir ||= "sourcecode"
target ||= :list
gensym = "unnamed-000"
taken = Hash.new { |h, k| h[k] = Hash.new }
warned = Hash.new { |h, k| h[k] = Hash.new }
filenames = ARGV.inspect
begin
d = REXML::Document.new(ARGF)
dr = d.root
unless dr
warn "*** Can't parse: #{filenames}"
exit(1)
end
rescue Errno::ENOENT
warn "*** Not found: #{filenames}"
exit(1)
rescue => e
begin
warn "*** Can't parse: #{filenames} (#{e.to_s[0..120]})"
rescue => e
warn "*** Can't parse: #{filenames} (#{e.to_s[0..120]})"
end
exit(1)
end
REXML::XPath.each(dr, "//sourcecode|//artwork") do |x|
if ty = x[:type]
is_svg = false
REXML::XPath.each(x, "svg") do is_svg = true end
ty = clean(ty)
if is_svg && ty != "svg"
warn "** replacing SVG type '#{ty}' by type 'svg'"
ty = "svg"
end
ext = ty
if ty.empty?
ty = "=txt"
ext = "txt"
end
name = x[:name]
name_is_from_slug = false
if !name || name.empty?
REXML::XPath.each(x, "ancestor::*/name[position() = 1]") do |nameel|
unless sname = nameel['slugifiedName']
alltext = nameel.all_text
nameel.add_attribute('slugifiedName',
sname = clean("name-" << slugify_like_xml2rfc(alltext, 5)))
end
name = clean(sname.to_s.sub(/^name-/, ''))
name_is_from_slug = true
end
if !name || name.empty?
name = gensym.succ!.dup
end
name = "#{name}.#{ext}"
end
name = clean(name)
if taken[ty][name]
if name_is_from_slug || is_svg
# rename old entry as well if it was from slug?
nameparts = name.split(".")
if is_svg && nameparts[-1] != "svg"
nameparts << "svg"
end
ext1 = nameparts.pop || "txt"
suffix = "b"
while taken[ty][name = [*nameparts[0...-1], "#{nameparts[-1]}-#{suffix}", ext1].join(".")]
suffix.succ!
end
taken[ty][name] = ''
else
unless warned[ty][name]
warn "Concatenating to #{ty}/#{name}."
warned[ty][name] = true
end
end
else
taken[ty][name] = ''
end
extracted = false
REXML::XPath.each(x, "svg") do |svg|
# According to v3.rnc, there should be only one...
taken[ty][name] << svg.to_s
extracted = true
end
unless extracted
taken[ty][name] << handle_artwork_sourcecode(x.all_text, unfold)
end
end
end
def make_directory_from(dir, taken)
if File.exist?(dir)
bak = "#{dir}.bak"
begin
FileUtils.mv(dir, bak)
rescue Errno::EEXIST
bak.succ!
retry
end
end
FileUtils.mkdir_p(dir)
taken.each { |dir1, v|
FileUtils.mkdir_p("#{dir}/#{dir1}")
v.each { |fn, value|
IO.write("#{dir}/#{dir1}/#{fn}", value)
}
}
end
case target
when :stdout
if dataset = taken[out_type]
unless out_name
case dataset.size
when 0
warn "No sourcecodes under #{out_type}"
exit(1)
when 1
out_name ||= dataset.keys.first
else
warn "Multiple sourcecodes under #{out_type}: #{dataset.keys}"
exit(1)
end
end
if data = dataset[out_name]
puts data
exit
end
end
warn "*** Cannot find sourcecode #{out_type}/#{out_name}"
exit(1)
when :yaml
puts taken.to_yaml
when :list
puts Hash[
taken.map {|k, v|
[k, v.keys]
}
].to_yaml
when :files
make_directory_from(dir, taken)
when :zip
make_directory_from(dir, taken)
zip = "#{dir}.zip"
if File.exist?(zip)
bak = "#{zip}.bak"
begin
FileUtils.mv(zip, bak)
rescue Errno::EEXIST # This doesn't actually happen. XXX
bak.succ!
retry
end
end
cmd = ["zip", "-mr", zip, dir].shelljoin
warn cmd
system(cmd)
end
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