Re^2: How does the built-in function length work?

[PerlOnTheWay]

I tried :

print length("\N{LATIN CAPITAL LETTER E WITH ACUTE}ric");

and it's reporting syntax error.

[chromatic]

You need something like this before you can use named Unicode characters:

use charnames ':full';

[ikegami]

By syntax error, do you mean the following?

Constant(\N{LATIN CAPITAL LETTER E WITH ACUTE}ric) unknown: (possibly 
+a missing "use charnames ...") at - line 1, within string
Execution of - aborted due to compilation errors.

If so, like the message says, it's because you need to add use charnames ':full';. If not, could you be more specific? Maybe your version of Perl predates \N{}?

PS — charnames will be loaded automatically when needed in 5.16.