Openapi.swap: def of ezmcp@0.1.0.0
Import: import ezmcp@0.1.0.0/src/openapi.bend as Openapi
Lines 1128-1135 of ezmcp@0.1.0.0/src/openapi.bend: https://jend.leeeet.dev/read.txt?path=ezmcp@0.1.0.0/src/openapi.bend&start_line=1128&end_line=1135

import Base

# a string with its first `pat` replaced by `rep`
def swap(text: String, +pat: String, +rep: String) -> String:
  match text:
    case SNil{}:
      SNil{}
    case SCon{+ch, +rest}:
      swap.at(String.starts_with(SCon{ch, rest}, pat), SCon{ch, rest}, pat, rep,
        _u => SCon{ch, swap(rest, pat, rep)})

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.starts_with
  https://jend.leeeet.dev/definition.txt?path=ezmcp@0.1.0.0/src/openapi.bend&name=swap.at