turtle-build 0.5.0

Ninja-compatible build system for high-level programming languages
Documentation 
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Feature: Variable definition

  Scenario: Expand a variable on definition
    Given a file named "build.ninja" with:
      """
      x = hello
      y = $x
      x = world

      rule echo
        command = echo $y

      build foo: echo

      """
    When I successfully run `turtle`
    Then the stdout should contain exactly "hello"

  Scenario: Expand a nested variable
    Given a file named "build.ninja" with:
      """
      x = hello
      y = $x world

      rule echo
        command = echo $y

      build foo: echo

      """
    When I successfully run `turtle`
    Then the stdout should contain exactly "hello world"

  Scenario: Append a value to a variable
    Given a file named "build.ninja" with:
      """
      x = hello
      x = $x world

      rule echo
        command = echo $x

      build foo: echo

      """
    When I successfully run `turtle`
    Then the stdout should contain exactly "hello world"

  Scenario: Escape dollar signs in a variable
    Given a file named "build.ninja" with:
      """
      x = $$y $$$$

      rule echo
        command = echo '$x'

      build foo: echo

      """
    When I successfully run `turtle`
    Then the stdout should contain exactly "$y $$"

  Scenario: Escape a newline in a variable
    Given a file named "build.ninja" with:
      """
      x = hello $
          world

      rule echo
        command = echo $x

      build foo: echo

      """
    When I successfully run `turtle`
    Then the stdout should contain exactly "hello world"