解析由冒号分隔的重复键、值（通过正则表达式或其他文本解析过程）

Question

我正在使用 Python 并使用正则表达式模块。不过，很高兴为以下内容使用替代解析方法。事实上，我尽量避免使用正则表达式。

我对解决问题所需的 python 感到满意。我只是在使用正则表达式模式。

一些示例数据（每行单独提供）：

This is a key : this_is_an_id_related_to_this_value   Sometimes just the ID present but in some cases a basic sentence delimited by more than one space          Second key : id2   description where I assume only one space is allowed, no other assumptions on what the content might contain                     <relates_to_id>
Container : 123ABC   <view5>
Container : A1B2   Some Sample Data Located at Rack 6          Storage Place : 1234   Think about another random description                     <view3>
Container : AbACc123   Some more sample data with some description          Storage Place : B14hb14h   Blah Blah Blah                     <view5>
Container : C0Nt41n3r8   Cleanup on isle 9          Storage Place : DEDE123   Storage Fridge 2                     <view8>
Container : Eb0l4   Infectious disease test rack 2          Storage Place : G3nX   XOXO Special Fridge 4                  Col : 8   Row : 3   <view8>

这应该翻译成：

[
  {
    "This is a key": {
      "id": "this_is_an_id_related_to_this_value",
      "description": "Sometimes just the ID present but in some cases a basic sentence delimited by more than one space"
    },
    "Second key": {
      "id": "id2",
      "description": "description where I assume only one space is allowed, no other assumptions on what the content might contain"
    },
    "relates_to": "relates_to_id"
  },
  {
    "Container": {
      "id": "123ABC"
    },
    "relates_to": "view5"
  },
  {
    "Container": {
      "id": "A1B2",
      "description": "Some Sample Data Located at Rack 6"
    },
    "Storage Place": {
      "id": "1234",
      "description": "Think about another random description"
    },
    "relates_to": "view3"
  },
  {
    "Container": {
      "id": "AbACc123",
      "description": "Some more sample data with some description"
    },
    "Storage Place": {
      "id": "B14hb14h",
      "description": "Blah Blah Blah"
    },
    "relates_to": "view5"
  },
  {
    "Container": {
      "id": "C0Nt41n3r8",
      "description": "Cleanup on isle 9"
    },
    "Storage Place": {
      "id": "DEDE123",
      "description": "Storage Fridge 2"
    },
    "relates_to": "view8"
  },
  {
    "Container": {
      "id": "Eb0l4",
      "description": "Infectious disease test rack 2"
    },
    "Storage Place": {
      "id": "G3nX",
      "description": "XOXO Special Fridge 4"
    },
    "Col": 8,
    "Row": 3,
    "relates_to": "view8"
  },
]

在这个阶段，我对只处理父键、值的解决方案感到满意，例如

[
  {
    "This is a key": "this_is_an_id_related_to_this_value   Sometimes just the ID present but in some cases a basic sentence delimited by more than one space",
    "Second key": "id2   description where I assume only one space is allowed, no other assumptions on what the content might contain",
    "relates_to": "relates_to_id"
  },
  # ...
]

我相信我可以弄清楚其余的，当我这样做时，我会提供它作为替代答案。

---

这是我尝试使用正则表达式的方法，see demo

(?<key>((?! +)[A-Za-z]*\s?)*):(?<value>.*)

我认为将上述内容包含在 ()* 中会成为 key : value 重复的关键。但它失败了，see demo

这几乎得到了我想要的，但我没有重复 key : value 重复，see demo

Answer 1

请尝试以下正则表达式。这将重复获取key、id、description 和relates_to

(?:(?P<key>.*?)\s*?:\s*?(?P<id>\S.*?)\s{3,}(?:(?P<desc>.*?)\s{4,})?)*?(?:<(?P<relates>.*?)>)?

Regex demo

请使用以下代码将结果转换为json格式

代码

import re
a="""This is a key : this_is_an_id_related_to_this_value   Sometimes just the ID present but in some cases a basic sentence delimited by more than one space          Second key : id2   description where I assume only one space is allowed, no other assumptions on what the content might contain                     <relates_to_id>
Container : 123ABC   <view5>
Container : A1B2   Some Sample Data Located at Rack 6          Storage Place : 1234   Think about another random description                     <view3>
Container : AbACc123   Some more sample data with some description          Storage Place : B14hb14h   Blah Blah Blah                     <view5>
Container : C0Nt41n3r8   Cleanup on isle 9          Storage Place : DEDE123   Storage Fridge 2                     <view8>
Container : Eb0l4   Infectious disease test rack 2          Storage Place : G3nX   XOXO Special Fridge 4                  Col : 8   Row : 3   <view8>
"""
result=re.findall("(?:(?P<key>.*?)\s*?:\s*?(?P<id>\S.*?)\s{3,}(?:(?P<desc>.*?)\s{4,})?)*?(?:<(?P<relates>.*?)>)?",a)
output=[]
temp={}
for part in result:
    if part[0]:
        if part[1] and part[2]:
            temp1={}
            temp1.update({"id":part[1]})
            temp1.update({"description":part[2]})
        elif part[1]:
            temp1=part[1]
        else:
            pass
        if temp1:
            temp.update({part[0]:temp1})
        if part[3]:
            temp.update({"relates_to":part[3]})
            output.append(temp)
            temp={}

print(output)

输出

[
  {
    "This is a key": {
      "id": "this_is_an_id_related_to_this_value",
      "description": "Sometimes just the ID present but in some cases a basic sentence delimited by more than one space"
    },
    "Second key": {
      "id": "id2",
      "description": "description where I assume only one space is allowed, no other assumptions on what the content might contain"
    },
    "relates_to": "relates_to_id"
  },
  {
    "Container": "123ABC",
    "relates_to": "view5"
  },
  {
    "Container": {
      "id": "A1B2",
      "description": "Some Sample Data Located at Rack 6"
    },
    "Storage Place": {
      "id": "1234",
      "description": "Think about another random description"
    },
    "relates_to": "view3"
  },
  {
    "Container": {
      "id": "AbACc123",
      "description": "Some more sample data with some description"
    },
    "Storage Place": {
      "id": "B14hb14h",
      "description": "Blah Blah Blah"
    },
    "relates_to": "view5"
  },
  {
    "Container": {
      "id": "C0Nt41n3r8",
      "description": "Cleanup on isle 9"
    },
    "Storage Place": {
      "id": "DEDE123",
      "description": "Storage Fridge 2"
    },
    "relates_to": "view8"
  },
  {
    "Container": {
      "id": "Eb0l4",
      "description": "Infectious disease test rack 2"
    },
    "Storage Place": {
      "id": "G3nX",
      "description": "XOXO Special Fridge 4"
    },
    "Col": "8",
    "Row": "3",
    "relates_to": "view8"
  }
]