# Copyright (c) 2006, 2007, 2008, 2009, 2010, 2011, 2012  Andrey Golovizin
#
# 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.

from pybtex.backends import BaseBackend

file_extension = 'bbl'

class Backend(BaseBackend):
    name = 'latex'
    suffixes = '.bbl',

    symbols = {
        'ndash': u'--',
        'newblock': u'\n\\newblock ',
        'nbsp': u'~'
    }
    
    def format_tag(self, tag_name, text):
        return ur'\%s{%s}' % (tag_name, text)

    def format_href(self, url, text):
        return ur'\href{%s}{%s}' % (url, text)
    
    def write_prologue(self):
        longest_label = self.formatted_bibliography.get_longest_label()
        self.output(u'\\begin{thebibliography}{%s}' % longest_label)

    def write_epilogue(self):
        self.output(u'\n\n\\end{thebibliography}\n')

    def write_entry(self, key, label, text):
        self.output(u'\n\n\\bibitem[%s]{%s}\n' % (label, key))
        self.output(text)