Bug #12947: Multiline if statements behave differently than inline if statements for flip flop

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin15]
• Backport: 2.1: REQUIRED, 2.2: REQUIRED, 2.3: REQUIRED

[josh.cheek (Josh Cheek)]

For an inline if statement, a numerical range literal in a conditional behaves like flip flop matching against $.
Parsed here.

printf first\nsecond\nthird\nforth\nfifth\n | ruby -ne 'print if 2..4'
second
third
forth

However when we switch it to a multiline if statement, it behaves like a regex (ie an object, so true).
Parsed here.

$ printf first\nsecond\nthird\nforth\nfifth\n | ruby -ne 'if 2..4; print; end'
first
second
third
forth
fifth

[josh.cheek (Josh Cheek)]

s/it behaves like a regex/it behaves like a range/

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset r56811.

---

test_flip.rb: r56316

• test/ruby/test_flip.rb (test_input_line_number_range): test for
  r56316. [ruby-core:78162] [Bug #12947]

[nobu (Nobuyoshi Nakada)]

• Backport changed from 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN to 2.1: REQUIRED, 2.2: REQUIRED, 2.3: REQUIRED