Data commit

Task/Variable-length-quantity/11l/variable-length-quantity.11l

@@ -0,0 +1,28 @@
+F to_str(v)
+   R ‘[ ’v.map(n -> hex(n).lowercase().zfill(2)).join(‘ ’)‘ ]’
+
+F to_seq(UInt64 x)
+   V i = 0
+   L(ii) (9.<0).step(-1)
+      I x [&] (UInt64(127) << ii * 7) != 0
+         i = ii
+         L.break
+
+   [Byte] out
+   L(j) 0 .. i
+      out [+]= ((x >> ((i - j) * 7)) [&] 127) [|] 128
+
+   out[i] (+)= 128
+   R out
+
+F from_seq(seq)
+   UInt64 r = 0
+
+   L(b) seq
+      r = (r << 7) [|] (b [&] 127)
+
+   R r
+
+L(x) [UInt64(7'F), 40'00, 0, 003F'FFFE, 001F'FFFF, 0020'0000, 3311'A123'4DF3'1413]
+   V s = to_seq(x)
+   print(‘seq from ’hex(x).lowercase()‘ ’to_str(s)‘ back: ’hex(from_seq(s)).lowercase())