heredoc里面的Ruby语法？

我想在 Ruby heredoc中迭代一个数组.

<<-BLOCK
Feature: User logs in
  In order to post content
  As an user
  I want to log in

<< Here i want to iterate scenarios >>
BLOCK

“scenario”是我想要循环的数组.对于我要打印的每个元素：

Scenario: #{scenario}
  Given
  When
  Then

例如,如果“scenario”包含：

scenarios[0] = "User successfully logs in"
scenarios[1] = "User Failed to log in"

我希望heredoc字符串是：

<<-BLOCK
Feature: #{feature}
  In order to #{in_order_to}
  As #{as}
  I want #{i_want}

Scenario: User successfully logs in
  Given
  When
  And

Scenarios: User Failed to log in
  Given
  When
  And
BLOCK

如何在Ruby heredoc中进行迭代？

解决方法

你可以这样做,但我不确定它是最可读的方法：

s = <<-BLOCK
Feature: User logs in
  In order to post content
  As an user
  I want to log in

#{scenarios.map{|x|
<<-INNERBLOCK
Scenario: #{x}
  Given
  When
  Then
INNERBLOCK
}}

BLOCK