Re: Can you check the syntax of a eval() before executing it?

There isn't a really good way to do this within Perl . . . however, if you absolutely must double check, you can execute perl from within your program on a temp file containing the source, using the -c switch. But you don't want to do that.

Cheers,
Erik

Update: Chmrr makes a good point about BEGIN blocks . . . see below

Comment on Re: Can you check the syntax of a eval() before executing it?

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Re: Re: Can you check the syntax of a eval() before executing it? by Chmrr (Vicar) on May 06, 2002 at 20:28 UTC
This has been discussed previously here at the monastery, but I can't seem to find where. The general consensus is that it is not possible. The `perl -c` trick will not prevent code from being executed; see the following, for example: `[chmrr@supox chmrr]$ perl -c BEGIN {print "Nope!"} Nope!- syntax OK` [download] perl -pe '"I lo`+$^X$\"$]!$/"=~m%(.)%s;$_=$1;y^`+*^e v^#$&V"+@( NO CARRIER'	[reply] [d/l] [select]