GNU Info

(diff.info)Blank Lines

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Enter node , (file) or (file)node

Suppressing Differences in Blank Lines
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   The `-B' and `--ignore-blank-lines' options ignore insertions or
deletions of blank lines.  These options normally affect only lines
that are completely empty; they do not affect lines that look empty but
contain space or tab characters.  With these options, for example, a
file containing
     1.  A point is that which has no part.
     
     2.  A line is breadthless length.
     -- Euclid, The Elements, I

is considered identical to a file containing
     1.  A point is that which has no part.
     2.  A line is breadthless length.
     
     
     -- Euclid, The Elements, I