Method: DebugIsTruncated#truncate

Defined in:
src/ruby/pb/test/server.rb

#truncate(s, truncate_at, options = {}) ⇒ Object

Truncates a given text after a given length if text is longer than length:

'Once upon a time in a world far far away'.truncate(27)
# => "Once upon a time in a wo..."

Pass a string or regexp :separator to truncate text at a natural break:

'Once upon a time in a world far far away'.truncate(27, separator: ' ')
# => "Once upon a time in a..."

'Once upon a time in a world far far away'.truncate(27, separator: /\s/)
# => "Once upon a time in a..."

The last characters will be replaced with the :omission string (defaults to “…”) for a total length not exceeding length:

'And they found that many people were sleeping better.'.truncate(25, omission: '... (continued)')
# => "And they f... (continued)"



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# File 'src/ruby/pb/test/server.rb', line 66

def truncate(s, truncate_at, options = {})
  return s unless s.length > truncate_at
  omission = options[:omission] || '...'
  with_extra_room = truncate_at - omission.length
  stop = \
    if options[:separator]
      rindex(options[:separator], with_extra_room) || with_extra_room
    else
      with_extra_room
    end
  "#{s[0, stop]}#{omission}"
end