Re: Re: Re: Syntax error with if following eval

Actually, I have been looking up why what you did was an error.

If you think about a string eval, the problem would have been clearer, I think:

eval '1'
if (1) {}
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but if you would write the block eval as:

eval {
    1
}
if (1) {
}
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then it becomes very confusing and unclear why that would be a problem. I guess it's just one of the Perl's syntaxical quirks that you need to get used to.

Liz

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Re: Re: Re: Re: Syntax error with if following eval by simonm (Vicar) on Sep 09, 2003 at 03:31 UTC
For what it's worth, I believe that the language design for Perl 6 specifies that the trailing semicolon after an eval block will become optional.	[reply]
Re: Re: Re: Re: Syntax error with if following eval by benizi (Hermit) on Sep 09, 2003 at 19:21 UTC
I think the problem is that the `if` is seen as a modifier to the `eval` statement, after which point the `{}` mucks up the parsing. You'd get the same error from: `print "hahaha\n" if (1) {};` So, in the `eval` case, perl thinks you want: `eval { 1 } if ($@);` but finds an extra block.	[reply] [d/l] [select]
Re: Re: Re: Re: Syntax error with if following eval by Anonymous Monk on Sep 09, 2003 at 00:04 UTC
Thank you: I was trying to figure out why it was wrong myself. It didn't seem so very wrong, because I always associate `{}` with "code blocks" that don't require trailing `;`'s. When you put it in terms of the string eval that makes it a lot clearer.	[reply] [d/l] [select]