json-validator/include/jvalidate/constraint/string_constraint.h

#pragma once

#include <cstdlib>
#include <string>

namespace jvalidate::constraint {
/**
 * @brief A constraint on the String type with the following characteristic(s):
 * @code{.cpp}
 * arg.size() >= value
 * @endcode
 *
 * https://json-schema.org/draft/2020-12/json-schema-validation#section-6.3.2
 */
struct MinLengthConstraint {
  size_t value = 0;
};

/**
 * @brief A constraint on the String type with the following characteristic(s):
 * @code{.cpp}
 * arg.size() <= value
 * @endcode
 *
 * https://json-schema.org/draft/2020-12/json-schema-validation#section-6.3.1
 */
struct MaxLengthConstraint {
  size_t value = 0;
};

/**
 * @brief A constraint on the String type with the following characteristic(s):
 * @code{.py}
 * re.match(regex, arg)
 * @endcode
 *
 * https://json-schema.org/draft/2020-12/json-schema-validation#section-6.3.3
 */
struct PatternConstraint {
  std::string regex;
};

/**
 * @brief A constraint on the String type that describes a string format using
 * a human friendly name. The implementation of the regular expression, ABNF
 * grammer, or state-machine parser that checks the validity of the string
 * (for the standard list of formats respected by the JSON schema RPC) is
 * implemented in {@see include/jvalidate/format.h}.
 *
 * https://json-schema.org/draft/2020-12/json-schema-validation#section-7
 */
struct FormatConstraint {
  std::string format;
  bool is_assertion = false;
};
}