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#
# static const rb_transcoder
# rb_from_US_ASCII = {
# "US-ASCII", "UTF-8", &from_US_ASCII, 1, 0,
# NULL, NULL,
# };
#
count = 0
converters = {}
outhdr = ARGV[0] || 'transdb.h'
transdirs = ARGV[1..-1] || 'enc/trans'
files = {}
transdirs.each do |transdir|
Dir.open(transdir) {|d| d.grep(/.+\.[ch]\z/).reject {|n| /\.erb\.c\z/ =~ n }}.sort_by {|e|
e.scan(/(\d+)|(\D+)/).map {|n,a| a||[n.size,n.to_i]}.flatten
}.each do |fn|
next if files[fn]
files[fn] = true
open(File.join(transdir,fn)) do |f|
f.each_line do |line|
if (/^static const rb_transcoder/ =~ line)..(/"(.*?)"\s*,\s*"(.*?)"/ =~ line)
if $1 && $2
from_to = "%s to %s" % [$1, $2]
if converters[from_to]
raise ArgumentError, '%s:%d: transcode "%s" is already registered (%s:%d)' %
[fn, $., from_to, *converters[from_to].values_at(2, 3)]
else
converters[from_to] = [$1, $2, fn[0..-3], $.]
end
end
end
end
end
end
end
result = converters.map {|k, v| %[rb_declare_transcoder("%s", "%s", "%s");\n] % v}.join
open(outhdr, 'wb') do |f|
f.print result
end
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