如何更改文本文件行中的字符串位置

Question

我在更改文本文件中特定行中某些单词的位置时遇到了一些问题，如下所示：

product  name="anything" s_c="7" act_ferq="UREWUERWERU" sys_name="mhr22:21140017-21140076"
common name="xyz" value="1234"
common
product  name="anything" s_c="7" control_type="pos" act_ferq="UREWUERWERU" 
sys_name="mhr22:21140017-21140076"
common name="xyz" value="1234"
common
product  name="anything" s_c="7" act_ferq="UREWUERWERU" sys_name="mhr22:21140016-21140079"
common name="xyz" value="1234"
common
product  name="anything" s_c="7" control_type="neg" act_ferq="UREWUERWERU" 
sys_name="mhr22:21140017-21140076"
common name="xyz" value="1234"
common

我希望它看起来像：

product  name="anything" sys_name="mhr22:21140017-21140076 act_ferq="UREWUERWERU" s_c="7"
common name="xyz" value="1234"
common

product  name="anything" sys_name="mhr22:21140017-21140076" control_type="pos" 
common name="xyz" value="1234"
common
product  name="anything" sys_name="mhr22:21140016-21140079 act_ferq="UREWUERWERU" s_c="7"
common name="xyz" value="1234"
common

product  name="anything" sys_name="mhr22:21140017-21140076" control_type="neg"
common name="xyz" value="1234"
common

我正在使用python regex来处理它，下面是我要做的(伪代码(：

filein=open('inputfile.txt','r')
fileout=open('fileout.txt','w')
for line in filein.readlines():
if re.search('product  name="[^s]+"',line):
if "control_type" in line:
delete  s_c="7" & act_ferq="UREWUERWERU"
and rearrange line
(#like this# product  name="anything" sys_name="mhr22:21140017-21140076" 
control_type="neg")
else:
rearrange line 
print (line)
(#like this# #product  name="anything" sys_name="mhr22:21140017-21140076 
act_ferq="UREWUERWERU" s_c="7")

如果已经有人问过这种问题，我很抱歉。非常感谢。

Answer 1

我可以通过以下方法获得：

for line in text.splitlines():
if re.search(r'product  name="[^s]+"', line):
change=line.split()
print(change[0]+' '+change[1]+' '+change[4]+' '+change[3]+' '+change[2])
print(line)
else:
print(line)