Class: StringTruncator

Inherits:
Object
  • Object
show all
Defined in:
lib/end_point_blank/string_truncator.rb

Constant Summary collapse

DEFAULT_LIMIT = 
1000
DEFAULT_SUFFIX = 
"<truncated>"

Class Method Summary collapse

Class Method Details

.truncate(str, limit: DEFAULT_LIMIT, suffix: DEFAULT_SUFFIX) ⇒ Object 



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# File 'lib/end_point_blank/string_truncator.rb', line 5

def self.truncate(str, limit: DEFAULT_LIMIT, suffix: DEFAULT_SUFFIX)
  return "" if str.nil?
  return str if str.bytesize <= limit

  suffix_bytes = suffix.bytesize
  max_bytes = limit - suffix_bytes

  truncated = str.byteslice(0, max_bytes)

  # Ensure valid UTF-8
  while !truncated.valid_encoding?
    truncated = truncated.byteslice(0, truncated.bytesize - 1)
  end

  truncated + suffix
end