Class: Utils

Inherits:
Object
  • Object
show all
Defined in:
lib/renamr/utils.rb

Overview

Provides utility methods.

Class Method Summary collapse

Class Method Details

.trim(src, lim) ⇒ Object

Trims src to fit lim terminal columns. Wide characters such as CJK occupy two columns, so the string keeps shrinking until its display width fits the limit.



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# File 'lib/renamr/utils.rb', line 16

def trim(src, lim)
  out = src.ellipsized(lim, '~', :center)
  while out.length > 1 && Unicode::DisplayWidth.of(out) > lim
    out = out.ellipsized(out.length - 1, '~', :center)
  end
  out
end