只有当后跟一些字符串时才用分隔符拆分

Question

我有一个字符串"values.component_category:monstor_client,dimensions.pool:rpool1,dimensions.env:prod,values.error_description:No content to map due to end-of-input↵ at [Source: java.io.StringReader@2ef452e5; line: 1, column: 1],values.incident_category:health"

并且只有在,或values后跟dimensions时才尝试将其拆分。由于,中有另一个; line: 1, column: 1，我想逃避它。

我尝试使用正则表达式.split(/,?(values|dimensions)./)

预期产出：

[
   "values.component_category:monstor_client",
   "dimensions.pool:rpool1", 
   "dimensions.env:pord", 
   "values.error_description:No content to map due to end-of java.io.StringReader@2ef452e5; line: 1, column: 1]", 
   "values.incident_category:health"
]

Answer 1

https://www.regular-expressions.info/lookaround.html

特别需要使用前瞻，例如：,(?=values|dimensions)

Answer 2

您可以使用Array.reduce和String.split()来实现此目标：

var str =  "values.component_category:monstor_client,dimensions.pool:rpool1,dimensions.env:prod,values.error_description:No content to map due to end-of-input↵ at [Source: java.io.StringReader@2ef452e5; line: 1, column: 1],values.incident_category:health";

var arr = str.split(/,(?=values|dimensions)/);

var result = arr.reduce((a,val)=>{
  var key = val.substring(0, val.indexOf(":"));
  var value = val.substring(val.indexOf(":")+1)
  a[key] = value;
  return a;
},{});

console.log(result);