Basic HTML version of Foils prepared Sept 20 97

Foil 43 Quotemeta() and \Q .. \E Construct

From Perl5 and Advanced Perl4 Features Computational Science for Information Age Course CPS616 -- Sept 20 97. by Geoffrey C. Fox,Nancy McCracken,Tom Scavo
quotemeta("string") protects all regular expression metacharacters
  • [ab] matches a or b in a regular expression
  • quotemeta("[ab]") becomes \[ab\] and matches string [ab]
quotemeta("string") is equivalent to "\Qstring\E" where "string" is interpolated before protection

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