Not at all. For starters, 

s/(?:#.*)|\n|\s//g

[download]

is the same as 

s/#.*|\s//g

[download]

Secondly, spaces are allowed in the pattern, so your change is unwarranted.

Finally, comments are allowed in the pattern, so you don't need the substitution at all.

In reply to Re^4: Unpack Many Fields by ikegami
in thread Unpack Many Fields by shoness

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