Add a library with string and list utilities

[Turgut Guneysu]

The IoT data exchanges only allow for true, false, an integer, or a url_encoded_string.

Thus, when a LIST is sent out or received in string format “[item1, item2, item3]”, there is no way to convert it to a microBlocks LIST format.

Conversion to List could be accomplished with a SNAP! like operator:

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Or some operation that does the reverse of:

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[Bernat Romagosa]

We’re planning to add a List and String utilities library that includes, among others, this operation you’re requesting.

I’ve attached a preliminary version of that lib with just that block in the meantime.

[John Maloney]

There is now a “Strings” library in the “Other” category with many useful operations.