pylint: upgrade to 1.3.1

third_party/logilab/common/pdf_ext.py

-# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
-# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
-#
-# This file is part of logilab-common.
-#
-# logilab-common is free software: you can redistribute it and/or modify it under
-# the terms of the GNU Lesser General Public License as published by the Free
-# Software Foundation, either version 2.1 of the License, or (at your option) any
-# later version.
-#
-# logilab-common 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 Lesser General Public License for more
-# details.
-#
-# You should have received a copy of the GNU Lesser General Public License along
-# with logilab-common.  If not, see <http://www.gnu.org/licenses/>.
-"""Manipulate pdf and fdf files (pdftk recommended).
-
-Notes regarding pdftk, pdf forms and fdf files (form definition file)
-fields names can be extracted with:
-
-    pdftk orig.pdf generate_fdf output truc.fdf
-
-to merge fdf and pdf:
-
-    pdftk orig.pdf fill_form test.fdf output result.pdf [flatten]
-
-without flatten, one could further edit the resulting form.
-with flatten, everything is turned into text.
-
-
-
-
-"""
-__docformat__ = "restructuredtext en"
-# XXX seems very unix specific
-# TODO: check availability of pdftk at import
-
-
-import os
-
-HEAD="""%FDF-1.2
-%\xE2\xE3\xCF\xD3
-1 0 obj
-<<
-/FDF
-<<
-/Fields [
-"""
-
-TAIL="""]
->>
->>
-endobj
-trailer
-
-<<
-/Root 1 0 R
->>
-%%EOF
-"""
-
-def output_field( f ):
-    return "\xfe\xff" + "".join( [ "\x00"+c for c in f ] )
-
-def extract_keys(lines):
-    keys = []
-    for line in lines:
-        if line.startswith('/V'):
-            pass #print 'value',line
-        elif line.startswith('/T'):
-            key = line[7:-2]
-            key = ''.join(key.split('\x00'))
-            keys.append( key )
-    return keys
-
-def write_field(out, key, value):
-    out.write("<<\n")
-    if value:
-        out.write("/V (%s)\n" %value)
-    else:
-        out.write("/V /\n")
-    out.write("/T (%s)\n" % output_field(key) )
-    out.write(">> \n")
-
-def write_fields(out, fields):
-    out.write(HEAD)
-    for (key, value, comment) in fields:
-        write_field(out, key, value)
-        write_field(out, key+"a", value) # pour copie-carbone sur autres pages
-    out.write(TAIL)
-
-def extract_keys_from_pdf(filename):
-    # what about using 'pdftk filename dump_data_fields' and parsing the output ?
-    os.system('pdftk %s generate_fdf output /tmp/toto.fdf' % filename)
-    lines = file('/tmp/toto.fdf').readlines()
-    return extract_keys(lines)
-
-
-def fill_pdf(infile, outfile, fields):
-    write_fields(file('/tmp/toto.fdf', 'w'), fields)
-    os.system('pdftk %s fill_form /tmp/toto.fdf output %s flatten' % (infile, outfile))
-
-def testfill_pdf(infile, outfile):
-    keys = extract_keys_from_pdf(infile)
-    fields = []
-    for key in keys:
-        fields.append( (key, key, '') )
-    fill_pdf(infile, outfile, fields)
-