Re^2: Basic transformations

The trick is that perl will evaluate a literal number as hex if you prefix it with '0x', you then need to use eval to force perl to re-evalute it as a number instead of a string.

Any reason not use the build in hex function, and instead use an eval, which, if the data comes from an untrusted source, has potential to have some "unwanted"side effects?

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Re^3: Basic transformations by chrestomanci (Priest) on Nov 30, 2010 at 12:36 UTC
Only that I did not think to use `hex`. It would probably be a better approach than `eval`. I don't think the OP had reason to distrust the input data, but if he did then it would be wise to sanitise with a regular expression like:`my($clean) = ($raw =~ m/(\d+)/);` regardless of how it is processed further.	[reply] [d/l] [select]
Re^4: Basic transformations by JavaFan (Canon) on Nov 30, 2010 at 14:23 UTC
So, his example data isn't going to pass the sanitizing?	[reply]