Module: Charming::UI::Width

Defined in:: lib/charming/ui/width.rb

Overview

Width is a namespace for measuring and normalising the visual width of strings that may contain ANSI escape sequences. It delegates to ‘Unicode::DisplayWidth` while automatically stripping formatting codes so layout primitives can calculate exact character positions.

Constant Summary collapse

ANSI_PATTERN =

/\e\[[0-9;]*m/

Class Method Details

.measure(value) ⇒ `Object`



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# File 'lib/charming/ui/width.rb', line 15

def measure(value)
  Unicode::DisplayWidth.of(strip_ansi(value.to_s))
end

.strip_ansi(value) ⇒ `Object`



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# File 'lib/charming/ui/width.rb', line 19

def strip_ansi(value)
  value.to_s.gsub(ANSI_PATTERN, "")
end