Step.step.need.of: def of emerging-ezhttp@0.21.0.0
Import: import emerging-ezhttp@0.21.0.0/src/step.bend as Step
Lines 113-122 of emerging-ezhttp@0.21.0.0/src/step.bend: https://jend.leeeet.dev/read.txt?path=emerging-ezhttp@0.21.0.0/src/step.bend&start_line=113&end_line=122

import Base
import emerging-ezhttp@0.21.0.0/src/http.bend as Http

# octets a request needs in all once its head has ended: the head, its blank
# line and the octets its Content-Length names (0 when it names none)
def step.need.of(c: Http.Cut) -> Maybe<&2, Nat>:
  match c:
    case Http.NoCut{}:
      None{}
    case Http.Cut{+before, after}:
      Some{Nat.add(Nat.add(String.length(before), 4n),
        step.clen(Http.digits.read(Http.first(
          Http.head.values(String.lines(before), "content-length")))))}

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.length
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.lines
  https://jend.leeeet.dev/definition.txt?path=emerging-ezhttp@0.21.0.0/src/http.bend&name=Cut
  https://jend.leeeet.dev/definition.txt?path=emerging-ezhttp@0.21.0.0/src/http.bend&name=digits.read
  https://jend.leeeet.dev/definition.txt?path=emerging-ezhttp@0.21.0.0/src/http.bend&name=first
  https://jend.leeeet.dev/definition.txt?path=emerging-ezhttp@0.21.0.0/src/http.bend&name=head.values
  https://jend.leeeet.dev/definition.txt?path=emerging-ezhttp@0.21.0.0/src/step.bend&name=step.clen