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lib/Config/IOD/Expr.pm  view on Meta::CPAN

(?<NUM>
    (
     -?
     (?: 0 | [1-9][0-9]* )
     (?: \. [0-9]+ )?
     (?: [eE] [-+]? [0-9]+ )?
    )
)

(?<VAR> \$[A-Za-z_][A-Za-z0-9_]{0,63})

(?<STR_SINGLE>
    (
     '
     (?:
         [^\\']+
       |
         \\ ['\\]
       |
         \\