Method: TermColor::RuleSet#printf

Defined in:
lib/term_color/rule_set.rb

#printf(format_string, *args, **opts) ⇒ Object

Wraps STDOUT printf method, passing output of ‘apply` to `print` Doesn’t actually use ‘printf`, instead passes result of `format_string % args` to `print`.

Parameters:

  • format_string (String) —

    printf format string, including TermColor style tags

  • args (Array) —

    printf values to use with format string

  • opts (Hash) —

    Optional params

Options Hash (**opts):

  • :out (IO) —

    Optional override for IO class to call ‘print` on (default `$stdout`)



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# File 'lib/term_color/rule_set.rb', line 184

def printf(format_string,*args,**opts)
    stdout = opts.fetch(:out, $stdout)

    # Sanitize rule symbols
    sanitized = format_string.dup
    @rules.keys.each { |k| sanitized.gsub!("#{@symbols.rule}#{k.to_s}","#{255.chr}#{k.to_s}") }
    sanitized.gsub!(@symbols.reset, 255.chr*2)

    t = sanitized % args
    # Reinstate rule symbols
    @rules.keys.each { |k| t.gsub!("#{255.chr}#{k.to_s}","#{@symbols.rule}#{k.to_s}") }
    t.gsub!(255.chr*2,@symbols.reset)

    stdout.print apply(t)
end