Resource Orchestration Service:Fn::Split

Declaration

• JSON

  {
    "Fn::Split": [
      "delimiter",
      "original_string"
    ]
  }

• YAML

  • Syntax for the full function name:

    Fn::Split:
      - delimiter
      - original_string

  • Syntax for the short form:

    !Split [delimiter, original_string]

Parameters

• delimiter: the delimiter, such as a comma (,), a semicolon (;), a line feed (\n), or an indent (\t).

• original_string: the string to split.

Return value

A list of the split string values.

Examples

• The following example splits a string into an array of values:

  YAML

  !Split
    - ;
    - foo; bar; achoo

  JSON

  {
    "Fn::Split": [
      ";",
      "foo; bar; achoo"
    ]
  }

  This example returns ["foo","bar","achoo"].

• The following example splits the value of InstanceIds:

  YAML

  Parameters:
    InstanceIds:
      Type: String
      Default: instane1_id,instance2_id,instance2_id
  Resources:
    a:
      Type: ALIYUN::SLB::BackendServerAttachment
      Properties:
        BackendServerList:
          !Split
            - ','
            - !Ref InstanceIds

  JSON

  {
    "Parameters": {
      "InstanceIds": {
        "Type": "String",
        "Default": "instane1_id,instance2_id,instance2_id"
      }
    },
    "Resources": {
      "a": {
        "Type": "ALIYUN::SLB::BackendServerAttachment",
        "Properties": {
          "BackendServerList": {
            "Fn::Split": [
              ",",
              {"Ref": "InstanceIds"}
            ]
          }
        }
      }
    }
  }

Supported functions

• Fn::Base64Encode

• Fn::FindInMap

• Fn::GetAtt

• Fn::Join

• Fn::Select

• Fn::Replace

• Fn::GetAZs

• Fn::If

• Ref