Class: String

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

Instance Method Summary collapse

Instance Method Details

#strip_heredoc ⇒ Object

This was copied from: activesupport/lib/active_support/core_ext/string/strip.rb

Instead of importing the whole activesupport library, we are only importing this one method.

Is this safe? The assumption is that the CLI will not be included in other projects as a gem. That mitigates possible side effects.

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 non-empty line in the whole string, and removes that amount of leading whitespace.



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# File 'lib/sem/core_ext/string.rb', line 32

def strip_heredoc
  gsub(/^#{scan(/^[ \t]*(?=\S)/).min}/, "".freeze)
end