Section 2.6. Processing a Byte at a Time


2.5. Processing a Line at a Time

A Ruby string can contain newlines. For example, a file can be read into memory and stored in a single string. The default iterator each processes such a string one line at a time:

str = "Once upon\na time...\nThe End\n" num = 0 str.each do |line|   num += 1   print "Line #{num}: #{line}" end


The preceding code produces three lines of output:

Line 1: Once upon Line 2: a time... Line 3: The End


The method each_with_index could also be used in this case.




The Ruby Way(c) Solutions and Techniques in Ruby Programming
The Ruby Way, Second Edition: Solutions and Techniques in Ruby Programming (2nd Edition)
ISBN: 0672328844
EAN: 2147483647
Year: 2004
Pages: 269
Authors: Hal Fulton

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