mkvtoolnix/rake.d/iso15924.rb
Moritz Bunkus b0986ba9ff
BCP 47: use emplace_back for initialization of ISO 15924 script list
It's much faster than using the initializer lists. See previous commits
for more details.
2021-01-26 14:53:31 +01:00

74 lines
2.0 KiB
Ruby

def create_iso15924_script_list_file
txt_files = []
zip_file = "iso15924.txt.zip"
url = "https://unicode.org/iso15924/#{zip_file}"
cpp_file_name = "src/common/iso15924_script_list.cpp"
File.unlink(zip_file) if FileTest.exists?(zip_file)
runq "wget", url, "wget --quiet -O #{zip_file} #{url}"
runq "unzip", zip_file, "unzip -o -q #{zip_file}"
txt_files = FileList["iso15924*.txt"].to_a
raise "No text file found in download" if txt_files.empty?
rows = IO.readlines(txt_files[0]).
map(&:chomp).
reject { |line| %r{^#}.match(line) }.
select { |line| %r{;.*;.*;}.match(line) }.
map { |line| line.split(';') }.
map { |line| [
(line[0][0..0].upcase + line[0][1..line[0].length].downcase).to_cpp_string,
sprintf('%03s', line[1].gsub(%r{^0}, '')),
line[2].to_u8_cpp_string,
] }
header = <<EOT
/*
mkvmerge -- utility for splicing together matroska files
from component media subtypes
Distributed under the GPL v2
see the file COPYING for details
or visit https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
ISO 15924 script list
Written by Moritz Bunkus <moritz@bunkus.org>.
*/
// -------------------------------------------------------------------------
// NOTE: this file is auto-generated by the "dev:iso15924_list" rake target.
// -------------------------------------------------------------------------
#include "common/common_pch.h"
#include "common/iso15924.h"
namespace mtx::iso15924 {
std::vector<script_t> g_scripts;
void
init() {
g_scripts.reserve(#{rows.size});
EOT
footer = <<EOT
}
} // namespace mtx::iso15924
EOT
content = header + format_table(rows.sort, :column_suffix => ',', :row_prefix => " g_scripts.emplace_back(", :row_suffix => ");").join("\n") + "\n" + footer
runq("write", cpp_file_name) { IO.write("#{$source_dir}/#{cpp_file_name}", content); 0 }
ensure
(txt_files + [ zip_file ]).each do |file_name|
File.unlink(file_name) if FileTest.exists?(file_name)
end
end