string-13.typ

// Test the `match` method.
#test("Is there a".match("for this?"), none)
#test(
  "The time of my life.".match(regex("[mit]+e")),
  (start: 4, end: 8, text: "time", captures: ()),
)

// Test the `matches` method.
#test("Hello there".matches("\d"), ())
#test("Day by Day.".matches("Day"), (
  (start: 0, end: 3, text: "Day", captures: ()),
  (start: 7, end: 10, text: "Day", captures: ()),
))

// Compute the sum of all timestamps in the text.
#let timesum(text) = {
  let time = 0
  for match in text.matches(regex("(\d+):(\d+)")) {
    let caps = match.captures
    time += 60 * int(caps.at(0)) + int(caps.at(1))
  }
  str(int(time / 60)) + ":" + str(calc.rem(time, 60))
}

#test(timesum(""), "0:0")
#test(timesum("2:70"), "3:10")
#test(timesum("1:20, 2:10, 0:40"), "4:10")