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#! ./miniruby
#
# OnigEncodingDefine(foo, Foo) = {
# ..
# "Shift_JIS", /* Canonical Name */
# ..
# };
# ENC_ALIAS("SJIS", "Shift_JIS")
# ENC_REPLICATE("Windows-31J", "Shift_JIS")
# ENC_ALIAS("CP932", "Windows-31J")
#
require 'mkmf'
encodings = []
replicas = {}
aliases = {}
Dir.open($srcdir) {|d| d.grep(/.+\.c\z/)}.each do |fn|
open(File.join($srcdir,fn)) do |f|
orig = nil
name = nil
f.each_line do |line|
break if /^OnigEncodingDefine/o =~ line
end
f.each_line do |line|
break if /"(.*?)"/ =~ line
end
encodings << $1 if $1
f.each_line do |line|
if /^ENC_REPLICATE\(\s*"([^"]+)"\s*,\s*"([^"]+)"/o =~ line
replicas[$1] = $2
elsif /^ENC_ALIAS\(\s*"([^"]+)"\s*,\s*"([^"]+)"/o =~ line
aliases[$1] = $2
end
end
end
end
open('encdb.h', 'wb') do |f|
f.puts 'static const char *enc_name_list[] = {'
encodings.each {|name| f.puts' "%s",' % name}
replicas.each_key {|name| f.puts' "%s",' % name}
f.puts(<<"_TEXT_")
NULL
};
static const int enc_name_list_size = #{encodings.length + replicas.length};
static const int enc_aliases_size = #{aliases.length};
static st_table *enc_table_replica_name;
static st_table *enc_table_alias_name;
static void enc_init_db(void)
{
if (!enc_table_replica_name) {
enc_table_replica_name = st_init_strcasetable();
}
if (!enc_table_alias_name) {
enc_table_alias_name = st_init_strcasetable();
}
_TEXT_
replicas.each_pair {|name, orig|
f.puts' st_insert(enc_table_replica_name, (st_data_t)"%s", (st_data_t)"%s");' % [name, orig]}
aliases.each_pair {|name, orig|
f.puts' st_insert(enc_table_alias_name, (st_data_t)"%s", (st_data_t)"%s");' % [name, orig]}
f.puts '}'
end
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