Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/string/strip.rb

Overview

Borrowed from activesupport, but without the :try method

Instance Method Summary collapse

Instance Method Details

#strip_heredoc ⇒ Object

Strips indentation in heredocs.

For example in

if options[:usage]
  puts "    This command does such and such.\n\n    Supported options are:\n      -h         This message\n      ...\n  USAGE\nend\n".strip_heredoc

the user would see the usage message aligned against the left margin.

Technically, it looks for the least indented line in the whole string, and removes that amount of leading whitespace.



22
23
24
25
26
 
# File 'lib/string/strip.rb', line 22

def strip_heredoc
  matches = scan(/^[ \t]*(?=\S)/).min
  indent = (matches.respond_to? :size) ? matches.size : 0
  gsub(/^[ \t]{#{indent}}/, '')
end