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BUILT-IN MATHEMATICA SYMBOL

NullWords

NullWords
is an option for Read and related functions which specifies whether null words should be taken to exist between repeated word separators.

With the default setting NullWords->False, repeated word separators are treated like single word separators.

A file containing words separated by colons:

Repeated colons are treated as single separators:

Repeated colons are taken to have null words in between:

A file containing words separated by colons:

Repeated colons are treated as single separators:

Out[2]=

Repeated colons are taken to have null words in between:

Out[3]=