Current File : //lib/calibre/calibre/ebooks/rtf2xml/group_styles.py
#########################################################################
# #
# #
# 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 sys, os, re
from calibre.ebooks.rtf2xml import copy
from calibre.ptempfile import better_mktemp
from . import open_for_read, open_for_write
class GroupStyles:
"""
Form lists.
Use RTF's own formatting to determine if a paragraph definition is part of a
list.
Use indents to determine items and how lists are nested.
"""
def __init__(self,
in_file,
bug_handler,
copy=None,
run_level=1,
wrap=0,
):
"""
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.__run_level = run_level
self.__write_to = better_mktemp()
self.__wrap = wrap
def __initiate_values(self):
"""
Required:
Nothing
Return:
Nothing
Logic:
The self.__end_list is a list of tokens that will force a list to end.
Likewise, the self.__end_lines is a list of lines that forces a list to end.
"""
self.__state = "default"
self.__left_indent = 0
self.__list_type = 'not-defined'
self.__pard_def = ""
self.__all_lists = []
self.__list_chunk = ''
self.__state_dict={
'default' : self.__default_func,
'in_pard' : self.__in_pard_func,
'after_pard' : self.__after_pard_func,
}
# section end
self.__end_list = [
# section end
'mi<mk<sect-close',
'mi<mk<sect-start',
# table begin
'mi<mk<tabl-start',
# field block begin
'mi<mk<fldbk-end_',
'mi<mk<fldbkstart',
# cell end
'mi<mk<close_cell',
# item end
'mi<tg<item_end__',
# footnote end
'mi<mk<foot___clo',
'mi<mk<footnt-ope',
# heading end
'mi<mk<header-beg',
'mi<mk<header-end',
'mi<mk<head___clo',
# lists
'mi<tg<item_end__',
'mi<tg<item_end__',
'mi<mk<list_start'
# body close
# don't use
# 'mi<mk<body-close',
# 'mi<mk<par-in-fld',
# 'cw<tb<cell______',
# 'cw<tb<row-def___',
# 'cw<tb<row_______',
# 'mi<mk<sec-fd-beg',
]
self.__name_regex = re.compile(r'<name>')
self.__found_appt = 0
self.__line_num = 0
def __in_pard_func(self, line):
"""
Required:
line -- the line of current text.
Return:
Nothing
Logic:
You are in a list, but in the middle of a paragraph definition.
Don't do anything until you find the end of the paragraph definition.
"""
if self.__token_info == 'mi<tg<close_____' \
and line[17:-1] == 'paragraph-definition':
self.__state = 'after_pard'
else:
self.__write_obj.write(line)
def __after_pard_func(self, line):
"""
Required:
line -- the line of current text.
Return:
Nothing
Logic:
"""
if self.__token_info == 'mi<tg<open-att__' \
and line[17:37] == 'paragraph-definition':
# found paragraph definition
self.__pard_after_par_def_func(line)
elif self.__token_info == 'mi<tg<close_____' \
and line[17:-1] == 'paragraph-definition':
sys.stderr.write('Wrong flag in __after_pard_func\n')
if self.__run_level > 2:
msg = 'wrong flag'
raise self.__bug_handler(msg)
elif self.__token_info in self.__end_list:
self.__write_obj.write('mi<tg<close_____<paragraph-definition\n')
self.__write_end_wrap()
self.__write_obj.write(self.__list_chunk)
self.__list_chunk = ''
self.__state = 'default'
self.__write_obj.write(line)
else:
self.__list_chunk += line
def __close_pard_(self, line):
self.__write_obj.write(self.__list_chunk)
self.__write_obj.write('mi<tg<close_____<paragraph-definition\n')
self.__write_end_wrap()
self.__list_chunk = ''
self.__state = 'default'
def __write_start_wrap(self, name):
if self.__wrap:
self.__write_obj.write('mi<mk<style-grp_<%s\n' % name)
self.__write_obj.write('mi<tg<open-att__<style-group<name>%s\n' % name)
self.__write_obj.write('mi<mk<style_grp_<%s\n' % name)
def __write_end_wrap(self):
if self.__wrap:
self.__write_obj.write('mi<mk<style_gend\n')
self.__write_obj.write('mi<tg<close_____<style-group\n')
self.__write_obj.write('mi<mk<stylegend_\n')
def __pard_after_par_def_func(self, line):
"""
Required:
line -- the line of current text.
id -- the id of the current list
Return:
Nothing
Logic:
"""
if self.__last_style_name == self.__style_name:
# just keep going
if self.__wrap:
self.__write_obj.write('mi<tg<close_____<paragraph-definition\n')
self.__write_obj.write(self.__list_chunk)
self.__list_chunk = ''
self.__state = 'in_pard'
if self.__wrap:
self.__write_obj.write(line)
else:
# different name for the paragraph definition
self.__write_obj.write('mi<tg<close_____<paragraph-definition\n')
self.__write_end_wrap()
self.__write_obj.write(self.__list_chunk)
self.__write_start_wrap(self.__style_name)
self.__write_obj.write(line)
self.__state = 'in_pard'
self.__last_style_name = self.__style_name
self.__list_chunk = ''
def __default_func(self, line):
"""
Required:
self, line
Returns:
Nothing
Logic
Look for the start of a paragraph definition. If one is found, check if
it contains a list-id. If it does, start a list. Change the state to
in_pard.
"""
if self.__token_info == 'mi<tg<open-att__' \
and line[17:37] == 'paragraph-definition':
self.__state = 'in_pard'
self.__last_style_name = self.__style_name
self.__write_start_wrap(self.__last_style_name)
self.__write_obj.write(line)
else:
self.__write_obj.write(line)
def __get_style_name(self, line):
if self.__token_info == 'mi<mk<style-name':
self.__style_name = line[17:-1]
def group_styles(self):
"""
Required:
nothing
Returns:
original file will be changed
Logic:
"""
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]
self.__get_style_name(line)
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, "group_styles.data")
copy_obj.rename(self.__write_to, self.__file)
os.remove(self.__write_to)
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