decbr1

class InputValidator:
    def __init__(self, prompt, cast=str, error_msg="Invalid input."):
        self.prompt = prompt
        self.cast = cast
        self.error_msg = error_msg
        self.rules = []

    def add_rule(self, condition, message=None):
        self.rules.append((condition, message or self.error_msg))
        return self  # allows method chaining

decbr1

#!/bin/bash

declare -a NEW_ORDER=(
  "item 1"
  "item 2"
  "item 3"
  "cont."
)

i=1