Class: Tqdm::StatusPrinter

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

Overview

Prints a status line, handling the deletion of previously printed lines with carriage returns as necessary. Instantiated by a TqdmDecorator.

Instance Method Summary collapse

Constructor Details

#initialize(file) ⇒ StatusPrinter

Initialize a new StatusPrinter.

Parameters:

  • file (File, IO) —

    the status will be printed to this via #write and #flush



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# File 'lib/tqdm.rb', line 35

def initialize(file)
  @file = file
  @last_printed_len = 0
end

Instance Method Details

Prints a line of text to @file, after deleting the previously printed line

Parameters:

  • line (String) —

    a line of text to be printed

Returns:

  • (Integer) —

    the number of bytes written



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# File 'lib/tqdm.rb', line 44

def print_status(line)
  @file.write("\r" + line + ' ' * [@last_printed_len - line.size, 0].max)
  @file.flush
  @last_printed_len = line.size
end