diff --git a/kread.py b/kread.py
deleted file mode 100644
index 57e598e..0000000
--- a/kread.py
+++ /dev/null
@@ -1,240 +0,0 @@
-
-#############################################
-##   PROGRAM: kman.py
-##   AUTHOR:  Chengan
-##   CREATE:  20200526
-##   douboer@gmail.com
-#############################################
-
-import platform
-import re
-import json
-import logging
-from collections import defaultdict
-
-# data structure - use dict
-'''
-books =
-{
-    "bookname_xxx": {
-        "author": "李",
-        "section1636": {
-            "content": "张",
-            "day": "2020年4月3日",
-            "meridiem": "下午",
-            "position": "311-311",
-            "time": "3:00:53",
-            "type": "HL",
-            "week": "星期五"
-        },
-        "section1651": {
-            "content": "治",
-            "day": "2020年4月3日",
-            "meridiem": "下午",
-            "position": "514",
-            "time": "3:43:50",
-            "type": "NT",
-            "week": "星期五"
-        },
-        "section1814": {
-            "content": null,
-            "day": "2020年4月12日",
-            "meridiem": "下午",
-            "position": "5186",
-            "time": "2:20:12",
-            "type": "BM",
-            "week": "星期日"
-        },
-        ...
-    },
-    ...
-}
-'''
-
-# modi clippath for different os
-SYS = 'WIN' if platform.system()=='Windows' else \
-   ('LINUX' if platform.system()=='LINUX' else 'MAC')
-
-# some constants
-LASTLINE = '=========='
-NTPREF   = '--CG注:'
-CLIPPATH = './My Clippings.txt' # /Volumes/Kindle/documents/My\ Clippings.txt
-STAT     = 'NONE'
-DEBUG    = 1   # 0 - INFO; 1 - DEBUG
-LOG2FILE = 1   # 0 - to stdio; 1 - to file
-
-# log info
-logger = logging.getLogger()
-#formatter = logging.Formatter
-#    ('%(asctime)s - %(pathname)s[line:%(lineno)d] - %(levelname)s: %(message)s')
-formatter = logging.Formatter('')
-
-if LOG2FILE:
-    handler = logging.FileHandler("log")
-    handler.setFormatter(formatter)
-    logger.addHandler(handler)
-else:
-    logging.basicConfig(format='%(levelname)s: %(message)s', level=logging.INFO)
-
-if DEBUG:
-    logger.setLevel(logging.DEBUG)
-
-#author & bookname info
-au = re.compile(
-r'''
-^\ufeff*
-(.+) \(         #bookname
-(.+)\)          #author
-''', flags=re.X )
-
-# page & date info
-#\(\d\+-\{0,1}\d\+\).\+\(\d\{4}年\d\{1,2}月\d\{1,2}日\)\(星期.\) \(..\)\(\d\{1,2}:\d\{1,2}:\d\{1,2}\)
-da = re.compile(
-r'''
-\#
-(\d+-{0,1}\d+)                 #group1 - page
-.+
-(笔记|标注|书签)               #group2 - type
-.+
-(\d{4}年\d{1,2}月\d{1,2}日)    #group3 - xxxx年xx月xx日
-(星期.)                        #group4 - week
-\s
-(..)                           #group5 - pm/am
-(\d{1,2}:\d{1,2}:\d{1,2})      #group6 - time
-''', flags=re.X )
-
-# input: section dict & and section index
-# return: dict
-#   d = { 'bookname':bookname,
-#          bookname: {
-#             'author':author
-#             'section0':{
-#                 'type':'HL',
-#                 'position':'123',
-#                 'day':'2020年5月26日',
-#                 'week':'星期二',
-#                 'meridiem':'PM',
-#                 'time':'10:26:31'
-#                 'content':content }}}
-def parse_section(sec,idx):
-    # 1. highlight over the picture, the content(#3 line) is empty, only two lines
-    # 2. bookmark section only two lines
-    # 3. other not correct format < 2
-    if len(sec)<=2:
-        return False
-
-    # parse #2 line
-    section  = defaultdict(dict)
-    authinfo = sec[0]
-    dateinfo = sec[1]
-    content  = sec[2] if len(sec)==3 else None
-
-    das = da.search(dateinfo)
-    # type of section
-    '''
-    STAT :
-        START  - start line of section
-        BM     - section is a bookmark
-        HL     - section is a highlight
-        NT     - section is a note
-    '''
-    tpy   = ('HL' if das.group(2)=='标注' else \
-            ('NT' if das.group(2)=='笔记' else 'BM'))
-    pos   = das.group(1)
-    day   = das.group(3)
-    week  = das.group(4)
-    pmam  = das.group(5)
-    time  = das.group(6)
-
-    # parse #1 line
-    aus = au.search(authinfo)
-    bookname = aus.group(1)
-    author   = aus.group(2)
-    section[bookname]['author'] = author
-
-    section['bookname'] = bookname
-    section[bookname][str(idx)] = {
-            'type':tpy,
-            'position':pos,
-            'day':day,
-            'week':week,
-            'meridiem':pmam,
-            'time':time,
-            'content':content }
-
-    return section
-
-# format output
-# input: books - dict
-#        f - 'MD'
-#            'TXT'
-#            'JSON'
-# output: 
-#
-def formmat_out(books,f='MD'):
-    pass
-
-# search clip, searching scope may be title/author/content
-# input: books - dict
-#        s - key word
-#        t - 'ALL'
-#            'HL'
-#            'BM'
-#            'NT'
-#        p - 'ALL'
-#            'TITLE'
-#            'AUTHOR'
-#            'CONTENT'
-# output: 
-#
-def search_clip(books, s, t='ALL', p='ALL'):
-    pass
-
-if __name__ == '__main__':
-    # 4 lines for each section seperated with '======='
-    # so read 4 lines before '======='
-    with open(CLIPPATH, 'r', encoding='utf8', errors='ignore') as f:
-        books   = defaultdict(dict)
-        secd    = defaultdict(dict)
-        sidx    = 0
-        idx     = 0
-        sec     = []
-        STAT    = 'START'
-        for line in f.readlines():
-            line = line.strip()
-            if re.match(r'^\s*$',line): continue
-            idx += 1
-
-            if not re.search(LASTLINE,line):
-                # content more than 1 line
-                if idx>3:
-                    sec[2] += str(' '+line)
-                    logger.debug('idx {} {}'.format(idx, sec[2]))
-                else:
-                    sec.append(line)
-                    logger.debug('idx {} {}'.format(idx, sec[idx-1]))
-            else:
-                idx   = 0
-                sidx += 1
-
-                # parsing section & fill data structure
-                secd = parse_section(sec,sidx)
-
-                if secd:
-                    bn  = secd['bookname']
-                    tpy = secd[bn][str(sidx)]['type']
-
-                    books[bn]['author'] = secd[bn]['author']
-                    books[bn][str(sidx)] = secd[bn][str(sidx)]
-
-                    if tpy=='NT' and books[bn][str(sidx-1)]['type']=='HL':
-                        books[bn][str(sidx-1)]['content'] += str(NTPREF+sec[2])
-                else: # BM or not correct format section
-                    sidx -= 1
-
-                # initial section for next section loop
-                sec = []
-
-    # print data with json format
-    logger.debug(json.dumps(books, indent=4, sort_keys=True, ensure_ascii=False))
-