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gryf
2020-03-31 17:15:23 +02:00
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ebook_converter/ebooks/rtf2xml/list_numbers.py Normal file
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from __future__ import unicode_literals, absolute_import, print_function, division
#########################################################################
# #
# #
# copyright 2002 Paul Henry Tremblay #
# #
# 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. #
# #
# #
#########################################################################
import os
from calibre.ebooks.rtf2xml import copy
from calibre.ptempfile import better_mktemp
from . import open_for_read, open_for_write
class ListNumbers:
"""
RTF puts list numbers outside of the paragraph. The public method
in this class put the list numbers inside the paragraphs.
"""
def __init__(self,
in_file,
bug_handler,
copy=None,
run_level=1,
):
"""
Required:
'file'
Optional:
'copy'-- whether to make a copy of result for debugging
'temp_dir' --where to output temporary results (default is
directory from which the script is run.)
Returns:
nothing
"""
self.__file = in_file
self.__bug_handler = bug_handler
self.__copy = copy
self.__write_to = better_mktemp()
def __initiate_values(self):
"""
initiate values for fix_list_numbers.
Required:
Nothing
Return:
Nothing
"""
self.__state = "default"
self.__list_chunk = ''
self.__previous_line = ''
self.__list_text_ob_count = ''
self.__state_dict={
'default' : self.__default_func,
'after_ob' : self.__after_ob_func,
'list_text' : self.__list_text_func,
'after_list_text' : self.__after_list_text_func
}
def __after_ob_func(self, line):
"""
Handle the line immediately after an open bracket.
Required:
self, line
Returns:
Nothing
"""
if self.__token_info == 'cw<ls<list-text_':
self.__state = 'list_text'
self.__list_chunk = self.__list_chunk + \
self.__previous_line + line
self.__list_text_ob = self.__ob_count
self.__cb_count = 0
else:
self.__write_obj.write(self.__previous_line)
self.__write_obj.write(line)
self.__state = 'default'
def __after_list_text_func(self, line):
"""
Look for an open bracket or a line of text, and then print out the
self.__list_chunk. Print out the line.
"""
if line[0:2] == 'ob' or line[0:2] == 'tx':
self.__state = 'default'
self.__write_obj.write('mi<mk<lst-txbeg_\n')
self.__write_obj.write('mi<mk<para-beg__\n')
self.__write_obj.write('mi<mk<lst-tx-beg\n')
self.__write_obj.write(
# 'mi<tg<open-att__<list-text<type>%s\n' % self.__list_type)
'mi<tg<open-att__<list-text\n')
self.__write_obj.write(self.__list_chunk)
self.__write_obj.write('mi<tg<close_____<list-text\n')
self.__write_obj.write('mi<mk<lst-tx-end\n')
self.__list_chunk = ''
self.__write_obj.write(line)
def __determine_list_type(self, chunk):
"""
Determine if the list is ordered or itemized
"""
lines = chunk.split('\n')
text_string = ''
for line in lines:
if line[0:5] == 'tx<hx':
if line[17:] == '\'B7':
return "unordered"
elif line[0:5] == 'tx<nu':
text_string += line[17:]
text_string = text_string.replace('.', '')
text_string = text_string.replace('(', '')
text_string = text_string.replace(')', '')
if text_string.isdigit():
return 'ordered'
"""
sys.stderr.write('module is list_numbers\n')
sys.stderr.write('method is __determine type\n')
sys.stderr.write('Couldn\'t get type of list\n')
"""
# must be some type of ordered list -- just a guess!
return 'unordered'
def __list_text_func(self, line):
"""
Handle lines that are part of the list text. If the end of the list
text is found (the closing bracket matches the self.__list_text_ob),
then change the state. Always add the line to the self.__list_chunk
Required:
self, line
Returns:
Nothing
"""
if self.__list_text_ob == self.__cb_count:
self.__state = 'after_list_text'
self.__right_after_list_text = 1
self.__list_type = self.__determine_list_type(self.__list_chunk)
self.__write_obj.write('mi<mk<list-type_<%s\n' % self.__list_type)
if self.__token_info != 'cw<pf<par-def___':
self.__list_chunk = self.__list_chunk + line
def __default_func(self, line):
"""
Handle the lines that are not part of any special state. Look for an
opening bracket. If an open bracket is found, add this line to a
temporary self.__previous line, which other methods need. Otherwise,
print out the line.
Required:
self, line
Returns:
Nothing
"""
if self.__token_info == 'ob<nu<open-brack':
self.__state = 'after_ob'
self.__previous_line = line
else:
self.__write_obj.write(line)
def fix_list_numbers(self):
"""
Required:
nothing
Returns:
original file will be changed
Logic:
Read in one line a time from the file. Keep track of opening and
closing brackets. Determine the method ('action') by passing the
state to the self.__state_dict.
Simply print out the line to a temp file until an open bracket
is found. Check the next line. If it is list-text, then start
adding to the self.__list_chunk until the closing bracket is
found.
Next, look for an open bracket or text. When either is found,
print out self.__list_chunk and the line.
"""
self.__initiate_values()
read_obj = open_for_read(self.__file)
self.__write_obj = open_for_write(self.__write_to)
line_to_read = 1
while line_to_read:
line_to_read = read_obj.readline()
line = line_to_read
self.__token_info = line[:16]
if self.__token_info == 'ob<nu<open-brack':
self.__ob_count = line[-5:-1]
if self.__token_info == 'cb<nu<clos-brack':
self.__cb_count = line[-5:-1]
action = self.__state_dict.get(self.__state)
action(line)
read_obj.close()
self.__write_obj.close()
copy_obj = copy.Copy(bug_handler=self.__bug_handler)
if self.__copy:
copy_obj.copy_file(self.__write_to, "list_numbers.data")
copy_obj.rename(self.__write_to, self.__file)
os.remove(self.__write_to)