The docs for the YAML module describes it as alpha code. It is not as tolerant of errors as YAML::Syck. However, because it is pure Perl, it is easy to hook into.
I have seen it enter endless loops, so if xgettext.pl hangs, try running it again with --verbose --verbose (twice) enabled, so that you can see if the fault lies with YAML. If it does, either correct the YAML source file, or use the file_types to exclude that file.
xgettext.pl for extracting translatable strings from common template systems and perl source files. YAML HTML::FormFu Locale::Maketext::Lexicon Locale::Maketext::Extract::Plugin::Base Locale::Maketext::Extract::Plugin::Perl Locale::Maketext::Extract::Plugin::TT2 Locale::Maketext::Extract::Plugin::YAML Locale::Maketext::Extract::Plugin::Mason Locale::Maketext::Extract::Plugin::TextTemplate Locale::Maketext::Extract::Plugin::Generic
Clinton Gormley <email@example.com>
Copyright 2002-2013 by Audrey Tang <firstname.lastname@example.org>.
This software is released under the MIT license cited below.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the Software), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
o Clinton Gormley <email@example.com> o Audrey Tang <firstname.lastname@example.org>
This software is Copyright (c) 2014 by Audrey Tang.
This is free software, licensed under:
The MIT (X11) License
|perl v5.20.3||LOCALE::MAKETEXT::EXTRACT::PLUGIN::FORMFU (3)||2014-03-06|