debian-python-pyexcel-ods/pyexcel_ods/odsr.py

131 lines
4.2 KiB
Python

"""
pyexcel_ods.odsr
~~~~~~~~~~~~~~~~~~~~~
ods reader
:copyright: (c) 2014-2020 by Onni Software Ltd.
:license: New BSD License, see LICENSE for more details
"""
# Copyright 2011 Marco Conti
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from io import BytesIO
import pyexcel_io.service as service
from odf.text import P
from odf.table import Table, TableRow, TableCell
# Thanks to grt for the fixes
from odf.teletype import extractText
from odf.namespaces import OFFICENS
from odf.opendocument import load
from pyexcel_io.plugin_api import ISheet, IReader, NamedContent
class ODSSheet(ISheet):
"""native ods sheet"""
def __init__(self, sheet, auto_detect_int=True, **keywords):
self._native_sheet = sheet
self._keywords = keywords
self.__auto_detect_int = auto_detect_int
@property
def name(self):
return self._native_sheet.getAttribute("name")
def row_iterator(self):
return self._native_sheet.getElementsByType(TableRow)
def column_iterator(self, row):
cells = row.getElementsByType(TableCell)
for cell in cells:
repeat = cell.getAttribute("numbercolumnsrepeated")
cell_value = self.__read_cell(cell)
if repeat:
number_of_repeat = int(repeat)
for i in range(number_of_repeat):
yield cell_value
else:
yield cell_value
def __read_cell(self, cell):
cell_type = cell.getAttrNS(OFFICENS, "value-type")
value_token = service.VALUE_TOKEN.get(cell_type, "value")
ret = None
if cell_type == "string":
text_content = self.__read_text_cell(cell)
ret = text_content
elif cell_type == "currency":
value = cell.getAttrNS(OFFICENS, value_token)
currency = cell.getAttrNS(OFFICENS, cell_type)
if currency:
ret = value + " " + currency
else:
ret = value
else:
if cell_type in service.VALUE_CONVERTERS:
value = cell.getAttrNS(OFFICENS, value_token)
n_value = service.VALUE_CONVERTERS[cell_type](value)
if cell_type == "float" and self.__auto_detect_int:
if service.has_no_digits_in_float(n_value):
n_value = int(n_value)
ret = n_value
else:
text_content = self.__read_text_cell(cell)
ret = text_content
return ret
def __read_text_cell(self, cell):
text_content = []
paragraphs = cell.getElementsByType(P)
# for each text node
for paragraph in paragraphs:
name_space, tag = paragraph.parentNode.qname
if tag != str("annotation"):
data = extractText(paragraph)
text_content.append(data)
return "\n".join(text_content)
class ODSBook(IReader):
"""read ods book"""
def __init__(self, file_alike_object, _, **keywords):
self._native_book = load(file_alike_object)
self._keywords = keywords
self.content_array = [
NamedContent(table.getAttribute("name"), table)
for table in self._native_book.spreadsheet.getElementsByType(Table)
]
def read_sheet(self, sheet_index):
"""read a sheet at a specified index"""
table = self.content_array[sheet_index].payload
sheet = ODSSheet(table, **self._keywords)
return sheet
def close(self):
self._native_book = None
class ODSBookInContent(ODSBook):
"""
Open xlsx as read only mode
"""
def __init__(self, file_content, file_type, **keywords):
io = BytesIO(file_content)
super().__init__(io, file_type, **keywords)