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What happened to the quotation marks?

April 26, 2017happened marks quotation

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What happened to the quotation marks?

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Perl 4 programmers especially may be surprised to find a serious dearth of quotation marks around strings in perl 5 scripts such as in perl/Tk. The “rules have been relaxed” somewhat for the use of quotation marks. Basically it is OK to leave them out if the context of the string in question is unambiguous. However, it never hurts to leave them in and may help readability.