解析名称值对的正则表达式 [英] Regular expression for parsing name value pairs

问题描述

有人可以提供一个正则表达式来解析字符串中的名称/值对吗?这些对由逗号分隔，并且可以选择将值括在引号中.例如:

Can someone provide a regular expression for parsing name/value pairs from a string? The pairs are separated by commas, and the value can optionally be enclosed in quotes. For example:

AssemblyName=foo.dll,ClassName="SomeClass",Parameters="Some,Parameters"

推荐答案

• 无法逃脱:

  /([^=,]*)=("[^"]*"|[^,"]*)/
  

• 键和值的双引号转义:

  /((?:"[^"]*"|[^=,])*)=((?:"[^"]*"|[^=,])*)/
  
  key=value,"key with "" in it"="value with "" in it",key=value" "with" "spaces
  

• 反斜杠字符串转义:

  /([^=,]*)=("(?:\\.|[^"\\]+)*"|[^,"]*)/
  
  key=value,key="value",key="val\"ue"
  

• 全反斜杠转义:

  /((?:\\.|[^=,]+)*)=("(?:\\.|[^"\\]+)*"|(?:\\.|[^,"\\]+)*)/
  
  key=value,key="value",key="val\"ue",ke\,y=val\,ue
  

添加了转义替代方案.

Edit2:添加了另一个转义替代方案.

Added another escaping alternative.

您必须通过删除任何转义字符和周围的引号来清理键/值.

You would have to clean up the keys/values by removing any escape-characters and surrounding quotes.

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