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# This file is part of pybliographer
#
# Copyright (C) 1998-2004 Frederic GOBRY
# Email : gobry@pybliographer.org
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
#
# Extension module for Refer files
# Martin Wilck <martin@tropos.de> added support for citation label field.
from Pyblio import Base, Types, Fields, Config, Autoload, Open, Iterator, Utils, Key
import re, string, sys
tag_re = re.compile ('%(.) (.*)')
class ReferDB (Base.DataBase):
id = 'Refer'
properties = {
'change_id' : 0,
'change_type' : 0
}
def __init__ (self, url):
Base.DataBase.__init__ (self, url)
iter = iterator (url, 0)
entry = iter.first ()
while entry:
self.add (entry)
entry = iter.next ()
return
class ReferIterator (Iterator.Iterator):
def __init__ (self, file):
self.file = file
self.mapping = Config.get ("refer/mapping").data
return
def first (self):
# rewind the file
self.file.seek (0)
return self.next ()
def next (self):
data = ''
fields = {}
type = None
label = None
while 1:
line = self.file.readline ()
if line == '' and not fields:
return None
line = string.strip (line)
if line == '' and fields:
# store the current field
if type:
if type == "label":
label = string.join (string.split (data), ' ')
elif fields.has_key (type):
fields [type].append (string.join (string.split (data), ' '))
else:
fields [type] = [string.join (string.split (data), ' ')]
# determine the real type
while 1:
if fields.has_key ('journal'):
type = 'article'
break
if fields.has_key ('booktitle'):
type = 'inbook'
break
if fields.has_key ('volume') or fields.has_key ('number'):
type = 'inproceedings'
break
if fields.has_key ('publisher'):
type = 'book'
break
if fields.has_key ('author') and fields.has_key ('title'):
type = 'unpublished'
break
type = 'misc'
break
entry = Types.get_entry (type)
for f in fields.keys ():
type = Types.get_field (f).type
if type == Fields.AuthorGroup:
group = Fields.AuthorGroup ()
for auth in fields [f]:
group.append (Fields.Author (auth))
fields [f] = group
else:
if len (fields [f]) > 1:
sys.stderr.write ("warning: field `%s' is defined more than once" % f)
continue
fields [f] = type (fields [f] [0])
if label:
key = Key.Key (None, label)
return Base.Entry (key, entry, fields)
else:
return Base.Entry (None, entry, fields)
t = tag_re.match (line)
# we matched a new field start
if t:
if type:
if type == "label":
label = string.join (string.split (data), ' ')
elif fields.has_key (type):
fields [type].append (string.join (string.split (data), ' '))
else:
fields [type] = [string.join (string.split (data), ' ')]
type = t.group (1)
if not self.mapping.has_key (type):
print "warning: key `%s' has been skipped" % (type)
type = None
data = ''
else:
# store the current field
type = self.mapping [type] [0]
data = t.group (2)
continue
# in the general case, append the new text
data = data + ' ' + line
def writer (iter, output, **argh):
entry = iter.first ()
mapping = Config.get ("refer/mapping").data
while entry:
for key in mapping.keys ():
# some fields are not to be used in output, as we
# lost their content
if not mapping [key] [1]: continue
field = mapping [key] [0]
if field == "label" and entry.key:
output.write ('%' + key + ' ')
output.write (Utils.format (str (entry.key.key), 75, 0, 0))
output.write ('\n')
continue
elif entry.has_key (field):
type = Types.get_field (field).type
if type == Fields.AuthorGroup:
# one field per author
for auth in entry [field]:
output.write ('%' + key + ' ')
output.write (Utils.format (str (auth), 75, 0, 0))
output.write ('\n')
continue
# general case
output.write ('%' + key + ' ')
output.write (Utils.format (str (entry [field]), 75, 0, 0))
output.write ('\n')
entry = iter.next ()
if entry: output.write ('\n')
return
def iterator (url, check):
if check and url.url [2] [-6:] != '.refer': return
file = open (Open.url_to_local (url))
return ReferIterator (file)
def opener (url, check):
base = None
if (not check) or (url.url [2] [-6:] == '.refer'):
base = ReferDB (url)
return base
Autoload.register ('format', 'Refer', {'open' : opener,
'write' : writer,
'iter' : iterator})
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