如何使用python将.txt文件转换为xml文件?
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,我想将其转换为xml文件,例如
<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,我想将纬度,经度,gsm单元格ID,时间的所有值存储在列表中,这将在xml文件中添加类似内容。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]
-
尝试以下代码作为入门:
#!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)
它显示您的示例数据:
<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>
所需近邻列表的更新:
#!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)
更新以在邻居之前接受空行 -更好的通用实现:
#!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)
该代码实现了所谓的 有限自动机 ,其中
status
变量代表其当前状态。您可以使用铅笔和纸来可视化它-
用内部状态数字绘制一个小圆圈(在图论中称为节点)。处于状态时,您仅允许某种输入(line
)。识别输入后,您将箭头(图论中的定向边)绘制到另一种状态(可能是同一状态,就像循环返回到同一节点一样)。箭头标有“条件|
行动’。一开始的结果可能看起来很复杂;但是,从某种意义上说,您总是可以只专注于属于特定状态的代码部分,这很容易。而且,可以轻松修改代码。但是,有限自动机的功能有限。但是它们只是解决此类问题的理想之选。