我该如何解析以下日志？

Question

我需要以下列格式解析日志:

===== Item 5483/14800  =====
This is the item title
Info: some note
===== Item 5483/14800 (Update 1/3) =====
This is the item title
Info: some other note
===== Item 5483/14800 (Update 2/3) =====
This is the item title
Info: some more notes
===== Item 5483/14800 (Update 3/3) =====
This is the item title
Info: some other note
Test finished. Result Foo. Time 12 secunds.
Stats: CPU 0.5 MEM 5.3
===== Item 5484/14800  =====
This is this items title
Info: some note
Test finished. Result Bar. Time 4 secunds.
Stats: CPU 0.9 MEM 4.7
===== Item 5485/14800  =====
This is the title of this item
Info: some note
Test finished. Result FooBar. Time 7 secunds.
Stats: CPU 2.5 MEM 2.8

我只需要提取每个项目的标题(=====项目5484/14800 =====之后的下一行)和结果.
所以我需要只保留项目标题的行和该标题的结果,并丢弃其他所有内容.
问题是,有时一个项目有注释(格言3),有时结果显示没有附加注释,所以这使得它很棘手.
任何帮助,将不胜感激.我在python中做解析器,但不需要实际的代码,但有些指向我怎么能得到这个？

LE:我正在寻找的结果就是抛弃其他所有东西,得到类似的东西:

('This is the item title','Foo')
then
('This is this items title','Bar')

Answer 1

1) Loop through every line in the log

    a)If line matches appropriate Regex:

      Display/Store Next Line as the item title.
      Look for the next line containing "Result 
      XXXX." and parse out that result for 
      including in the result set.

编辑:现在添加了一点,我看到你正在寻找的结果.

Answer 2

我知道你没有要求真正的代码,但这对于基于生成器的文本管理器来说是太大的机会了:

# data is a multiline string containing your log, but this
# function could be easily rewritten to accept a file handle.
def get_stats(data):

   title = ""
   grab_title = False

   for line in data.split('\n'):
      if line.startswith("====="):
         grab_title = True
      elif grab_title:
         grab_title = False
         title = line
      elif line.startswith("Test finished."):
         start = line.index("Result") + 7
         end   = line.index("Time")   - 2
         yield (title, line[start:end])


for d in get_stats(data):
   print d


# Returns:
# ('This is the item title', 'Foo')
# ('This is this items title', 'Bar')
# ('This is the title of this item', 'FooBar')

希望这很简单.请问您是否对上述工作原理有疑问.