Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer

Re^2: Small examples of string eval

by ikegami (Pope)
on May 13, 2006 at 07:29 UTC ( #549196=note: print w/ replies, xml ) Need Help??

in reply to Re: Small examples of string eval
in thread Small examples of string eval

In my opinion, eval EXPR (as opposed to eval BLOCK) should be used only as a last resort. Your code is a prime example. It breaks as soon as someone places -, } or \ in %charmap. The following does not, and avoids eval EXPR entirely:

while (<>) { s/(.)/exists $charmap{$1} ? $charmap{$1} : $1/seg; print; }

(No, the /e is not the same as eval EXPR. There's no dynamic code generation. /ee, on the other hand, would be the same as eval EXPR.)

Comment on Re^2: Small examples of string eval
Select or Download Code

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://549196]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others surveying the Monastery: (3)
As of 2015-10-09 01:46 GMT
Find Nodes?
    Voting Booth?

    Does Humor Belong in Programming?

    Results (232 votes), past polls