Latitude :23.1100348
Longitude:72.5364922
date&time :30:August:2014 05:04:31 PM
gsm cell id: 4993
Neighboring List- Lac : Cid : RSSI
15000 : 7072 : 25 dBm
15000 : 7073 : 23 dBm
15000 : 6102 : 24 dBm
15000 : 6101 : 24 dBm
15000 : 6103 : 17 dBm
Latitude :23.1120549
Longitude:72.5397988
date&time :30:August:2014 05:04:34 PM
gsm cell id: 4993
Neighboring List- Lac : Cid : RSSI
15000 : 7072 : 24 dBm
15000 : 7073 : 22 dBm
15000 : 6102 : 23 dBm
15000 : 6101 : 23 dBm
15000 : 2552 : 16 dBm
这是my.txt文件我希望将其转换为xml文件，如
<celldata>
<time> </time>
<latitude> </latitude>
<longitude> </longitude>
</celldata>
我试图列出所有组件，但我没有得到o / p。我想在列表中存储纬度，经度，gsm单元格id，时间的所有值，这将在xml文件中添加类似的东西。 我写下面的代码。
import re
pa = 'Longitude|Latitude|gsm cell id|Neighboring List- Lac : Cid : RSSI'
with open('cell.txt','rw') as file:
for line in file:
line.strip()
if re.search(pa, line):
lineInfo = line.split(':')
title = lineInfo[0]
value = lineInfo[1]
答案 0 :(得分：3)
尝试使用以下代码作为启动器：
#!python3
import re
import xml.etree.ElementTree as ET
rex = re.compile(r'''(?P<title>Longitude
|Latitude
|date&time
|gsm\s+cell\s+id
)
\s*:?\s*
(?P<value>.*)
''', re.VERBOSE)
root = ET.Element('root')
root.text = '\n' # newline before the celldata element
with open('cell.txt') as f:
celldata = ET.SubElement(root, 'celldata')
celldata.text = '\n' # newline before the collected element
celldata.tail = '\n\n' # empty line after the celldata element
for line in f:
# Empty line starts new celldata element (hack style, uggly)
if line.isspace():
celldata = ET.SubElement(root, 'celldata')
celldata.text = '\n'
celldata.tail = '\n\n'
# If the line contains the wanted data, process it.
m = rex.search(line)
if m:
# Fix some problems with the title as it will be used
# as the tag name.
title = m.group('title')
title = title.replace('&', '')
title = title.replace(' ', '')
e = ET.SubElement(celldata, title.lower())
e.text = m.group('value')
e.tail = '\n'
# Display for debugging
ET.dump(root)
# Include the root element to the tree and write the tree
# to the file.
tree = ET.ElementTree(root)
tree.write('cell.xml', encoding='utf-8', xml_declaration=True)
显示示例数据：
<root>
<celldata>
<latitude>23.1100348</latitude>
<longitude>72.5364922</longitude>
<datetime>30:August:2014 05:04:31 PM</datetime>
<gsmcellid>4993</gsmcellid>
</celldata>
<celldata>
<latitude>23.1120549</latitude>
<longitude>72.5397988</longitude>
<datetime>30:August:2014 05:04:34 PM</datetime>
<gsmcellid>4993</gsmcellid>
</celldata>
</root>
想要的邻居列表的更新：
#!python3
import re
import xml.etree.ElementTree as ET
rex = re.compile(r'''(?P<title>Longitude
|Latitude
|date&time
|gsm\s+cell\s+id
|Neighboring\s+List-\s+Lac\s+:\s+Cid\s+:\s+RSSI
)
\s*:?\s*
(?P<value>.*)
''', re.VERBOSE)
root = ET.Element('root')
root.text = '\n' # newline before the celldata element
with open('cell.txt') as f:
celldata = ET.SubElement(root, 'celldata')
celldata.text = '\n' # newline before the collected element
celldata.tail = '\n\n' # empty line after the celldata element
for line in f:
# Empty line starts new celldata element (hack style, uggly)
if line.isspace():
celldata = ET.SubElement(root, 'celldata')
celldata.text = '\n'
celldata.tail = '\n\n'
else:
# If the line contains the wanted data, process it.
m = rex.search(line)
if m:
# Fix some problems with the title as it will be used
# as the tag name.
title = m.group('title')
title = title.replace('&', '')
title = title.replace(' ', '')
if line.startswith('Neighboring'):
neighbours = ET.SubElement(celldata, 'neighbours')
neighbours.text = '\n'
neighbours.tail = '\n'
else:
e = ET.SubElement(celldata, title.lower())
e.text = m.group('value')
e.tail = '\n'
else:
# This is the neighbour item. Split it by colon,
# and set the attributes of the item element.
item = ET.SubElement(neighbours, 'item')
item.tail = '\n'
lac, cid, rssi = (a.strip() for a in line.split(':'))
item.attrib['lac'] = lac
item.attrib['cid'] = cid
item.attrib['rssi'] = rssi.split()[0] # dBm removed
# Include the root element to the tree and write the tree
# to the file.
tree = ET.ElementTree(root)
tree.write('cell.xml', encoding='utf-8', xml_declaration=True)
在邻居之前接受空行的更新 - 对于一般用途也是更好的实施：
#!python3
import re
import xml.etree.ElementTree as ET
rex = re.compile(r'''(?P<title>Longitude
|Latitude
|date&time
|gsm\s+cell\s+id
|Neighboring\s+List-\s+Lac\s+:\s+Cid\s+:\s+RSSI
)
\s*:?\s*
(?P<value>.*)
''', re.VERBOSE)
root = ET.Element('root')
root.text = '\n' # newline before the celldata element
with open('cell.txt') as f:
celldata = ET.SubElement(root, 'celldata')
celldata.text = '\n' # newline before the collected element
celldata.tail = '\n\n' # empty line after the celldata element
status = 0 # init status of the finite automaton
for line in f:
if status == 0: # lines of the heading expected
# If the line contains the wanted data, process it.
m = rex.search(line)
if m:
# Fix some problems with the title as it will be used
# as the tag name.
title = m.group('title')
title = title.replace('&', '')
title = title.replace(' ', '')
if line.startswith('Neighboring'):
neighbours = ET.SubElement(celldata, 'neighbours')
neighbours.text = '\n'
neighbours.tail = '\n'
status = 1 # empty line and then list of neighbours expected
else:
e = ET.SubElement(celldata, title.lower())
e.text = m.group('value')
e.tail = '\n'
# keep the same status
elif status == 1: # empty line expected
if line.isspace():
status = 2 # list of neighbours must follow
else:
raise RuntimeError('Empty line expected. (status == {})'.format(status))
status = 999 # error status
elif status == 2: # neighbour or the empty line as final separator
if line.isspace():
celldata = ET.SubElement(root, 'celldata')
celldata.text = '\n'
celldata.tail = '\n\n'
status = 0 # go to the initial status
else:
# This is the neighbour item. Split it by colon,
# and set the attributes of the item element.
item = ET.SubElement(neighbours, 'item')
item.tail = '\n'
lac, cid, rssi = (a.strip() for a in line.split(':'))
item.attrib['lac'] = lac
item.attrib['cid'] = cid
item.attrib['rssi'] = rssi.split()[0] # dBm removed
# keep the same status
elif status == 999: # error status -- break the loop
break
else:
raise LogicError('Unexpected status {}.'.format(status))
break
# Display for debugging
ET.dump(root)
# Include the root element to the tree and write the tree
# to the file.
tree = ET.ElementTree(root)
tree.write('cell.xml', encoding='utf-8', xml_declaration=True)
代码实现了所谓的有限自动机，其中status变量表示其当前状态。您可以使用铅笔和纸张对其进行可视化 - 绘制内部状态编号的小圆圈（在图论中称为节点）。处于状态时，您只允许某种输入（line）。当识别输入时，您将箭头（图论中的方向边）绘制到另一个状态（可能是相同的状态，作为返回到同一节点的循环）。箭头标注为`condition |动作＆＃39;
结果可能在开始时看起来很复杂;但是，从某种意义上说，您可以始终专注于属于某种状态的代码部分。而且，代码可以很容易地修改。然而，有限自动机的功率有限。但它们只适合这类问题。