如何将.txt文件解析为.xml文件？

Question

这是我的txt文件：

In File Name:   C:\Users\naqushab\desktop\files\File 1.m1
Out File Name:  C:\Users\naqushab\desktop\files\Output\File 1.m2
In File Size:   Low:    22636   High:   0
Total Process time: 1.859000
Out File Size:  Low:    77619   High:   0

In File Name:   C:\Users\naqushab\desktop\files\File 2.m1
Out File Name:  C:\Users\naqushab\desktop\files\Output\File 2.m2
In File Size:   Low:    20673   High:   0
Total Process time: 3.094000
Out File Size:  Low:    94485   High:   0

In File Name:   C:\Users\naqushab\desktop\files\File 3.m1
Out File Name:  C:\Users\naqushab\desktop\files\Output\File 3.m2
In File Size:   Low:    66859   High:   0
Total Process time: 3.516000
Out File Size:  Low:    217268  High:   0

我试图将其解析为如下XML格式：

^{pr2}$

下面是我尝试实现这一目标的代码（我使用的是Python 2）：

import re
import xml.etree.ElementTree as ET

rex = re.compile(r'''(?P<title>In File Name:
                       |Out File Name:
                       |In File Size:   Low:
                       |Total Process time:
                       |Out File Size:  Low:
                     )
                     (?P<value>.*)
                     ''', re.VERBOSE)

root = ET.Element('root')
root.text = '\n'    # newline before the celldata element

with open('Performance.txt') as f:
    celldata = ET.SubElement(root, 'filedata')
    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, 'filedata')
            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('Performance.xml', encoding='utf-8', xml_declaration=True)

但是我得到的是空值，有可能将这个txt解析为XML吗？在

Answer 1

从文件中看（重点是我的）：

re.VERBOSE
This flag allows you to write regular expressions that look nicer. Whitespace within the pattern is ignored, except when in a character class or preceded by an unescaped backslash, and, when a line contains a '#' neither in a character class or preceded by an unescaped backslash, all characters from the leftmost such '#' through the end of the line are ignored.

正则表达式中的转义空格或使用\s类