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table_info.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.                            #
#                                                                       #
#   You should have received a copy of the GNU General Public License   #
#   along with this program; if not, write to the Free Software         #
#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA            #
#   02111-1307 USA                                                      #
#                                                                       #
#                                                                       #
#########################################################################
import os,  tempfile
from calibre.ebooks.rtf2xml import copy
# note to self. This is the first module in which I use tempfile. A good idea?
"""
"""
00023 class TableInfo:
    """
    Insert table data for tables.
    Logic:
    """
00028     def __init__(self,
            in_file,
            bug_handler,
            table_data,
            copy=None,
            run_level = 1,):
        """
        Required:
            'file'--file to parse
            'table_data' -- a dictionary for each table.
        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.__table_data = table_data
        self.__run_level = run_level
        self.__write_to = tempfile.mktemp()
            # self.__write_to = 'table_info.data'
00052     def insert_info(self):
        """
        """
        read_obj = open(self.__file, 'r')
        self.__write_obj = open(self.__write_to, 'w')
        line_to_read = 1
        while line_to_read:
            line_to_read = read_obj.readline()
            line = line_to_read
            if line == 'mi<mk<tabl-start\n':
                if len(self.__table_data) > 0:
                    table_dict = self.__table_data[0]
                    self.__write_obj.write('mi<tg<open-att__<table')
                    keys = table_dict.keys()
                    for key in keys:
                        self.__write_obj.write('<%s>%s' % (key, table_dict[key]))
                    self.__write_obj.write('\n')
                    self.__table_data = self.__table_data[1:]
                else:
                    # this shouldn't happen!
                    if self.__run_level > 3:
                        msg = 'Not enough data for each table\n'
                        raise self.__bug_handler, msg
                    self.__write_obj.write('mi<tg<open______<table\n')
            elif line == 'mi<mk<table-end_\n':
                self.__write_obj.write('mi<tg<close_____<table\n')
            self.__write_obj.write(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, "table_info.data")
        copy_obj.rename(self.__write_to, self.__file)
        os.remove(self.__write_to)

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