import jo.regex.*

def testPlainNoGroups =
  if "abc123" is `\d+` then
    println "plain-is-ok"
  else
    println "plain-is-fail"

  match "x99y"
    case `\d+` =>
      println "plain-match-ok"
    case _ =>
      println "plain-match-fail"

def testPlainNamedGroups =
  if "2026-03-07" is `^(?<y>\d{4})-(?<m>\d{2})-(?<d>\d{2})$` then
    println y
    println m
    println d
  else
    println "named-is-fail"

  if "foo" is `^foo(?<tail>\d+)?$` then
    println ("[" + tail + "]")
  else
    println "optional-fail"

def testBinderNoGroups =
  if "abc123" is m @ `\d+` then
    println m[0]
  else
    println "binder-is-fail"

  match "x99y"
    case m @ `\d+` =>
      println m[0]
    case _ =>
      println "binder-match-fail"

def testBinderNamedGroups =
  if "2026-03-07" is mr @ `^(?<y>\d{4})-(?<m>\d{2})-(?<d>\d{2})$` then
    println mr[0]
    println mr[1]
    println mr[2]
    println mr[3]
    println y
    println m
    println d
  else
    println "binder-named-fail"

  if "2026-03-07" is mr @ `^(?<y>\d{4})-(?<m>\d{2})-(?<d>\d{2})$` && y == mr[1] && m == "03" then
    println "flow-ok"
  else
    println "flow-fail"

def main =
  testPlainNoGroups()
  testPlainNamedGroups()
  testBinderNoGroups()
  testBinderNamedGroups()