On 5/29/2019 9:33 AM, Serge wrote:
Is lookup function searches for keys which are strings? say
<b> lookup("foo",myArray)? </b>
I get undef back. Is this a bug?
what's the good Strings functions library for OpenScad?
lookup( ) doesn't explicitly say so, but since it interpolates it can't
work on anything but numbers.
You want search( ).
Notes:
- If you're searching for a string, the first argument needs to be an
array containing as its only element that string.
- For the default num_returns_to_match of 1, the not-found results are
a little peculiar. Found yields an array that contains as its only
element the index of the entry; not-found yields an array that
contains as its only element an empty array.
table=[ [ "bar", 0 ], [ "foo", 1 ], [ "foo", 1 ], [ "baz", 2 ] ];
echo(search(["baz"], table));
echo(search(["foo"], table));
echo(search(["junk"], table));
ECHO: [3]
ECHO: [1]
ECHO: [[]]
On 5/29/2019 9:33 AM, Serge wrote:
> Is lookup function searches for keys which are strings? say
> <b> lookup("foo",myArray)? </b>
>
> I get undef back. Is this a bug?
> what's the good Strings functions library for OpenScad?
>
>
lookup( ) doesn't explicitly say so, but since it interpolates it can't
work on anything but numbers.
You want search( ).
Notes:
* If you're searching for a string, the first argument needs to be an
array containing as its only element that string.
* For the default num_returns_to_match of 1, the not-found results are
a little peculiar. Found yields an array that contains as its only
element the index of the entry; not-found yields an array that
contains as its only element an empty array.
table=[ [ "bar", 0 ], [ "foo", 1 ], [ "foo", 1 ], [ "baz", 2 ] ];
echo(search(["baz"], table));
echo(search(["foo"], table));
echo(search(["junk"], table));
ECHO: [3]
ECHO: [1]
ECHO: [[]]
