gawk: Using Constant Regexps

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1 6.1.2 Using Regular Expression Constants
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1 Regular expression constants consist of text describing a regular
1 expression enclosed in slashes (such as '/the +answer/').  This minor
1 node describes how such constants work in POSIX 'awk' and 'gawk', and
1 then goes on to describe "strongly typed regexp constants", which are a
1 'gawk' extension.
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· Standard Regexp Constants   Regexp constants in standard 'awk'.
· Strong Regexp Constants     Strongly typed regexp constants.
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