<div dir="ltr"><div class="gmail_default" style="font-family:trebuchet ms,sans-serif">Or use binary comprehensions.</div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif">Something along the lines of this totally untested code…</div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif"><br></div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif"><< << (length(Item)), (list_to_binary(Item))/binary >> || Item <- tuple_to_list(Input) >>.<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jul 3, 2020 at 11:48 AM Hugo Mills <<a href="mailto:hugo@carfax.org.uk">hugo@carfax.org.uk</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Fri, Jul 03, 2020 at 10:43:22AM +0100, Hugo Mills wrote:<br>
> There's a tuple_to_list/1 function. Use that to start with, and<br>
> then you can map over the list to generate a list of size/value<br>
> binaries, converting one at a time. Then finally fold over that list<br>
> to produce the final binary.<br>
> <br>
> Alternatively, require the input to be a list in the first place,<br>
> and you can skip the tuple_to_list/1 part. (But the rest is still<br>
> necessary).<br>
<br>
Sorry, just realised I should have added:<br>
<br>
More fundamentally, work out how to do *one* thing (convert a<br>
string to a length+data binary), then use the list functions to<br>
map/filter/fold many of those into one result.<br>
<br>
Occasionally, you'll have to write a recursive function directly,<br>
but it's rarer than you might think.<br>
<br>
Hugo.<br>
<br>
-- <br>
Hugo Mills | Well, sir, the floor is yours. But remember, the<br>
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