I'm just curious to know if there are situations where evaling a single quoted literal with all single quotes escaped might still cause accidental interpolation.

After further thought, yes -- they could use backslash escapes to encode a single quote; for example, $literal could contain \x27; print system('ls -la'); \x27.

Update: Or not, as pointed out below -- I had rigged my test case a bit differently than the OP and went off on a tangent somewhere...

In reply to Re: Safe eval of string literals? by simonm
in thread Safe eval of string literals? by Anonymous Monk

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