/usr/share/pyshared/openpyxl/reader/workbook.py is in python-openpyxl 1.7.0+ds1-1.
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# Copyright (c) 2010-2011 openpyxl
#
# 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.
#
# @license: http://www.opensource.org/licenses/mit-license.php
# @author: see AUTHORS file
"""Read in global settings to be maintained by the workbook object."""
# package imports
from openpyxl.shared.xmltools import fromstring, QName
from openpyxl.shared.ooxml import NAMESPACES
from openpyxl.workbook import DocumentProperties
from openpyxl.shared.date_time import W3CDTF_to_datetime,CALENDAR_WINDOWS_1900,CALENDAR_MAC_1904
from openpyxl.namedrange import NamedRange, NamedRangeContainingValue, split_named_range, refers_to_range
import datetime
# constants
BUGGY_NAMED_RANGES = ['NA()', '#REF!']
DISCARDED_RANGES = ['Excel_BuiltIn', 'Print_Area']
def get_sheet_ids(xml_source):
sheet_names = read_sheets_titles(xml_source)
return dict((sheet, 'sheet%d.xml' % (i + 1)) for i, sheet in enumerate(sheet_names))
def read_properties_core(xml_source):
"""Read assorted file properties."""
properties = DocumentProperties()
root = fromstring(xml_source)
properties.creator = root.findtext(
QName(NAMESPACES['dc'], 'creator').text, '')
properties.last_modified_by = root.findtext(
QName(NAMESPACES['cp'], 'lastModifiedBy').text, '')
created_node = root.find(QName(NAMESPACES['dcterms'], 'created').text)
if created_node is not None:
properties.created = W3CDTF_to_datetime(created_node.text)
else:
properties.created = datetime.datetime.now()
modified_node = root.find(QName(NAMESPACES['dcterms'], 'modified').text)
if modified_node is not None:
properties.modified = W3CDTF_to_datetime(modified_node.text)
else:
properties.modified = properties.created
return properties
def read_excel_base_date(xml_source):
root = fromstring(text = xml_source)
wbPr = root.find('{http://schemas.openxmlformats.org/spreadsheetml/2006/main}workbookPr')
if wbPr is not None and wbPr.get('date1904') in ('1', 'true'):
return CALENDAR_MAC_1904
return CALENDAR_WINDOWS_1900
# Mark Mikofski, 2013-06-03
def read_content_types(xml_source):
"""Read content types."""
root = fromstring(xml_source)
contents_root = root.findall('{http://schemas.openxmlformats.org/package/2006/content-types}Override')
for type in contents_root:
yield type.get('PartName'), type.get('ContentType')
def read_sheets_titles(xml_source):
"""Read titles for all sheets."""
root = fromstring(xml_source)
titles_root = root.find('{http://schemas.openxmlformats.org/spreadsheetml/2006/main}sheets')
return [sheet.get('name') for sheet in titles_root]
def read_named_ranges(xml_source, workbook):
"""Read named ranges, excluding poorly defined ranges."""
named_ranges = []
root = fromstring(xml_source)
names_root = root.find('{http://schemas.openxmlformats.org/spreadsheetml/2006/main}definedNames')
if names_root is not None:
for name_node in names_root:
range_name = name_node.get('name')
node_text = name_node.text or ''
if name_node.get("hidden", '0') == '1':
continue
valid = True
for discarded_range in DISCARDED_RANGES:
if discarded_range in range_name:
valid = False
for bad_range in BUGGY_NAMED_RANGES:
if bad_range in node_text:
valid = False
if valid:
if refers_to_range(node_text):
destinations = split_named_range(node_text)
new_destinations = []
for worksheet, cells_range in destinations:
# it can happen that a valid named range references
# a missing worksheet, when Excel didn't properly maintain
# the named range list
#
# we just ignore them here
worksheet = workbook.get_sheet_by_name(worksheet)
if worksheet:
new_destinations.append((worksheet, cells_range))
named_range = NamedRange(range_name, new_destinations)
else:
named_range = NamedRangeContainingValue(range_name, node_text)
location_id = name_node.get("localSheetId")
if location_id:
named_range.scope = workbook.worksheets[int(location_id)]
named_ranges.append(named_range)
return named_ranges
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