### `++teff`

UTF8 Length

Produces the number of utf8 bytes.

Accepts
-------

`a` is a `@t`.

Produces
--------

An atom.

Source
------

      |=  a/@t  ^-  @
      =+  b=(end 3 1 a)
      ~|  %bad-utf8
      ?:  =(0 b)
        ?>(=(`@`0 a) 0)
      ?>  |((gte b 32) =(10 b))
      ?:((lte b 127) 1 ?:((lte b 223) 2 ?:((lte b 239) 3 4)))

Examples
--------

    /~zod/try=> (teff 'a')
    1
    /~zod/try=> (teff 'ß')
    2



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