"""Merge de fichiers de publications BibTeX
   C. Fouquere, Oct. 2007

   Utilise pybliographer
"""

from Pyblio import Open
from Pyblio.Format import BibTeX
import sys


#
VERSION='0.1'

usage = "usage: %prog file.bib ... file.bib"


# Reading of Bibtex files
if len (sys.argv) <= 2:
	parser.error("incorrect number of arguments")
else: 
	Base = Open.bibopen( sys.argv[2])
	for file in sys.argv [3:]:
		Complement = Open.bibopen( file)
		# Add entries that Base have not (i.e. key non present)
		for f in Complement.keys ():
		    if not Base.has_key (f):
				Base [f] = Complement [f]

	 
# Printing
Open.bibwrite (Base.iterator (), how = "BibTeX", out = sys.stdout)