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steve donovan wrote:
On Wed, Dec 16, 2009 at 3:29 PM, Hans Hagen <> wrote:
The following is valid lua

a = "text"
b = a[3]

Yes, given that there is no index operator for strings it seems odd
that we don't get an error. The reason is that strings have a
metatable with __index pointing to the string table; looking up [3] on
s leads to string[3] which gives the nil as you've noticed.

If you're prepared to modify the metatable of all strings, then you
can define a[3] in this case to be a:sub(3,3)

can you give an example? __index gets a (table, n) passed and not the string itself


                                          Hans Hagen | PRAGMA ADE
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     tel: 038 477 53 69 | fax: 038 477 53 74 |