def _init_expressions(self):
"""
Defines all parser expressions used internally.
"""
self._expr = BibtexExpression()
# Handle string as BibDataString object
self._expr.set_string_name_parse_action(
lambda s, l, t:
BibDataString(self.bib_database, t[0]))
self._expr.set_string_expression_parse_action(
lambda s, l, t:
self._interpolate_string_expression(t))
# Add notice to logger
self._expr.add_log_function(logger.debug)
# Set actions
self._expr.entry.addParseAction(
lambda s, l, t: self._add_entry(
t.get('EntryType'), t.get('Key'), t.get('Fields'))
)
self._expr.implicit_comment.addParseAction(
lambda s, l, t: self._add_comment(t[0])
)
self._expr.explicit_comment.addParseAction(
lambda s, l, t: self._add_comment(t[0])
)
self._expr.preamble_decl.addParseAction(
lambda s, l, t: self._add_preamble(t[0])
)
self._expr.string_def.addParseAction(
lambda s, l, t: self._add_string(t['StringName'].name,
t['StringValue'])
)
def setUp(self):
self.expr = BibtexExpression()
