valid_json_hex Function

public pure function valid_json_hex(str) result(valid)

Returns true if the string is a valid 4-digit hex string.

Examples

    valid_json_hex('0000')  !returns true
    valid_json_hex('ABC4')  !returns true
    valid_json_hex('AB')    !returns false (< 4 characters)
    valid_json_hex('WXYZ')  !returns false (invalid characters)

Arguments

Type IntentOptional Attributes Name
character(kind=CK, len=*), intent(in) :: str

the string to check.

Return Value logical(kind=LK)

is str a value 4-digit hex string


Called by

proc~~valid_json_hex~~CalledByGraph proc~valid_json_hex valid_json_hex proc~escape_string escape_string proc~escape_string->proc~valid_json_hex proc~unescape_string unescape_string proc~unescape_string->proc~valid_json_hex proc~json_get_string json_core%json_get_string proc~json_get_string->proc~escape_string proc~json_value_print json_core%json_value_print proc~json_value_print->proc~escape_string proc~json_value_print->proc~json_value_print proc~json_is_vector json_core%json_is_vector proc~json_value_print->proc~json_is_vector proc~parse_string json_core%parse_string proc~parse_string->proc~unescape_string none~get~2 json_core%get none~get~2->proc~json_get_string proc~json_get_alloc_string_vec json_core%json_get_alloc_string_vec none~get~2->proc~json_get_alloc_string_vec proc~json_get_alloc_string_vec_by_path json_core%json_get_alloc_string_vec_by_path none~get~2->proc~json_get_alloc_string_vec_by_path proc~json_get_array_by_path json_core%json_get_array_by_path none~get~2->proc~json_get_array_by_path proc~json_get_integer_by_path json_core%json_get_integer_by_path none~get~2->proc~json_get_integer_by_path proc~json_get_integer_vec json_core%json_get_integer_vec none~get~2->proc~json_get_integer_vec proc~json_get_integer_vec_by_path json_core%json_get_integer_vec_by_path none~get~2->proc~json_get_integer_vec_by_path proc~json_get_logical_by_path json_core%json_get_logical_by_path none~get~2->proc~json_get_logical_by_path proc~json_get_logical_vec json_core%json_get_logical_vec none~get~2->proc~json_get_logical_vec proc~json_get_logical_vec_by_path json_core%json_get_logical_vec_by_path none~get~2->proc~json_get_logical_vec_by_path proc~json_get_real32 json_core%json_get_real32 none~get~2->proc~json_get_real32 proc~json_get_real32_by_path json_core%json_get_real32_by_path none~get~2->proc~json_get_real32_by_path proc~json_get_real32_vec json_core%json_get_real32_vec none~get~2->proc~json_get_real32_vec proc~json_get_real32_vec_by_path json_core%json_get_real32_vec_by_path none~get~2->proc~json_get_real32_vec_by_path proc~json_get_real_by_path json_core%json_get_real_by_path none~get~2->proc~json_get_real_by_path proc~json_get_real_vec json_core%json_get_real_vec none~get~2->proc~json_get_real_vec proc~json_get_real_vec_by_path json_core%json_get_real_vec_by_path none~get~2->proc~json_get_real_vec_by_path proc~json_get_string_by_path json_core%json_get_string_by_path none~get~2->proc~json_get_string_by_path proc~json_get_string_vec json_core%json_get_string_vec none~get~2->proc~json_get_string_vec proc~json_get_string_vec_by_path json_core%json_get_string_vec_by_path none~get~2->proc~json_get_string_vec_by_path proc~json_get_by_path json_core%json_get_by_path none~get~2->proc~json_get_by_path proc~json_print_to_unit json_core%json_print_to_unit proc~json_print_to_unit->proc~json_value_print proc~json_value_to_string json_core%json_value_to_string proc~json_value_to_string->proc~json_value_print proc~parse_object json_core%parse_object proc~parse_object->proc~parse_string proc~parse_object->proc~parse_object proc~parse_value json_core%parse_value proc~parse_object->proc~parse_value none~add~2 json_core%add proc~parse_object->none~add~2 proc~parse_value->proc~parse_string proc~parse_value->proc~parse_object proc~parse_array json_core%parse_array proc~parse_value->proc~parse_array proc~assign_json_file_to_string json_file%assign_json_file_to_string proc~assign_json_file_to_string->proc~json_value_to_string proc~json_file_get_alloc_string_vec json_file%json_file_get_alloc_string_vec proc~json_file_get_alloc_string_vec->none~get~2 proc~json_file_get_integer json_file%json_file_get_integer proc~json_file_get_integer->none~get~2 proc~json_file_get_integer_vec json_file%json_file_get_integer_vec proc~json_file_get_integer_vec->none~get~2 proc~json_file_get_logical json_file%json_file_get_logical proc~json_file_get_logical->none~get~2 proc~json_file_get_logical_vec json_file%json_file_get_logical_vec proc~json_file_get_logical_vec->none~get~2 proc~json_file_get_object json_file%json_file_get_object proc~json_file_get_object->none~get~2 proc~json_file_get_real json_file%json_file_get_real proc~json_file_get_real->none~get~2 proc~json_file_get_real32 json_file%json_file_get_real32 proc~json_file_get_real32->none~get~2 proc~json_file_get_real32_vec json_file%json_file_get_real32_vec proc~json_file_get_real32_vec->none~get~2 proc~json_file_get_real_vec json_file%json_file_get_real_vec proc~json_file_get_real_vec->none~get~2 proc~json_file_get_string json_file%json_file_get_string proc~json_file_get_string->none~get~2 proc~json_file_get_string_vec json_file%json_file_get_string_vec proc~json_file_get_string_vec->none~get~2 proc~json_file_print_to_string json_file%json_file_print_to_string proc~json_file_print_to_string->proc~json_value_to_string proc~json_get_alloc_string_vec->none~get~2 none~string_info json_core%string_info proc~json_get_alloc_string_vec->none~string_info proc~json_get_alloc_string_vec_by_path->none~get~2 proc~json_get_array_by_path->none~get~2 proc~json_get_integer_by_path->none~get~2 proc~json_get_integer_vec->none~get~2 proc~json_get_integer_vec_by_path->none~get~2 proc~json_get_logical_by_path->none~get~2 proc~json_get_logical_vec->none~get~2 proc~json_get_logical_vec_by_path->none~get~2 proc~json_get_real32->none~get~2 proc~json_get_real32_by_path->none~get~2 proc~json_get_real32_vec->none~get~2 proc~json_get_real32_vec_by_path->none~get~2 proc~json_get_real_by_path->none~get~2 proc~json_get_real_vec->none~get~2 proc~json_get_real_vec_by_path->none~get~2 proc~json_get_string_by_path->none~get~2 proc~json_get_string_vec->none~get~2 proc~json_get_string_vec_by_path->none~get~2 proc~json_info_by_path json_core%json_info_by_path proc~json_info_by_path->none~get~2 none~info~2 json_core%info proc~json_info_by_path->none~info~2 proc~json_matrix_info_by_path json_core%json_matrix_info_by_path proc~json_matrix_info_by_path->none~get~2 none~matrix_info~2 json_core%matrix_info proc~json_matrix_info_by_path->none~matrix_info~2 proc~json_parse_file json_core%json_parse_file proc~json_parse_file->proc~parse_value proc~json_parse_string json_core%json_parse_string proc~json_parse_string->proc~parse_value proc~json_rename_by_path json_core%json_rename_by_path proc~json_rename_by_path->none~get~2 proc~json_string_info json_core%json_string_info proc~json_string_info->none~get~2 proc~json_string_info->none~info~2 proc~json_update_integer json_core%json_update_integer proc~json_update_integer->none~get~2 proc~json_update_integer->none~info~2 none~add_by_path json_core%add_by_path proc~json_update_integer->none~add_by_path proc~json_update_logical json_core%json_update_logical proc~json_update_logical->none~get~2 proc~json_update_logical->none~info~2 proc~json_update_logical->none~add_by_path proc~json_update_real json_core%json_update_real proc~json_update_real->none~get~2 proc~json_update_real->none~info~2 proc~json_update_real->none~add_by_path proc~json_update_string json_core%json_update_string proc~json_update_string->none~get~2 proc~json_update_string->none~info~2 proc~json_update_string->none~add_by_path proc~json_valid_path json_core%json_valid_path proc~json_valid_path->none~get~2 proc~json_value_remove_if_present json_core%json_value_remove_if_present proc~json_value_remove_if_present->none~get~2 proc~parse_array->proc~parse_value proc~parse_array->none~add~2 proc~wrap_json_get_alloc_string_vec_by_path wrap_json_get_alloc_string_vec_by_path proc~wrap_json_get_alloc_string_vec_by_path->none~get~2 proc~wrap_json_get_array_by_path wrap_json_get_array_by_path proc~wrap_json_get_array_by_path->none~get~2 proc~wrap_json_get_by_path wrap_json_get_by_path proc~wrap_json_get_by_path->none~get~2 proc~wrap_json_get_integer_by_path wrap_json_get_integer_by_path proc~wrap_json_get_integer_by_path->none~get~2 proc~wrap_json_get_integer_vec_by_path wrap_json_get_integer_vec_by_path proc~wrap_json_get_integer_vec_by_path->none~get~2 proc~wrap_json_get_logical_by_path wrap_json_get_logical_by_path proc~wrap_json_get_logical_by_path->none~get~2 proc~wrap_json_get_logical_vec_by_path wrap_json_get_logical_vec_by_path proc~wrap_json_get_logical_vec_by_path->none~get~2 proc~wrap_json_get_real32_by_path wrap_json_get_real32_by_path proc~wrap_json_get_real32_by_path->none~get~2 proc~wrap_json_get_real32_vec_by_path wrap_json_get_real32_vec_by_path proc~wrap_json_get_real32_vec_by_path->none~get~2 proc~wrap_json_get_real_by_path wrap_json_get_real_by_path proc~wrap_json_get_real_by_path->none~get~2 proc~wrap_json_get_real_vec_by_path wrap_json_get_real_vec_by_path proc~wrap_json_get_real_vec_by_path->none~get~2 proc~wrap_json_get_string_by_path wrap_json_get_string_by_path proc~wrap_json_get_string_by_path->none~get~2 proc~wrap_json_get_string_vec_by_path wrap_json_get_string_vec_by_path proc~wrap_json_get_string_vec_by_path->none~get~2 proc~wrap_json_value_get_child_by_name wrap_json_value_get_child_by_name proc~wrap_json_value_get_child_by_name->none~get~2 none~deserialize~2 json_core%deserialize none~deserialize~2->proc~json_parse_string none~get json_file%get none~get->proc~json_file_get_alloc_string_vec none~get->proc~json_file_get_integer none~get->proc~json_file_get_integer_vec none~get->proc~json_file_get_logical none~get->proc~json_file_get_logical_vec none~get->proc~json_file_get_object none~get->proc~json_file_get_real none~get->proc~json_file_get_real32 none~get->proc~json_file_get_real32_vec none~get->proc~json_file_get_real_vec none~get->proc~json_file_get_string none~get->proc~json_file_get_string_vec none~info~2->proc~json_info_by_path none~load~2 json_core%load none~load~2->proc~json_parse_file none~matrix_info~2->proc~json_matrix_info_by_path proc~json_matrix_info json_core%json_matrix_info none~matrix_info~2->proc~json_matrix_info none~remove_if_present json_core%remove_if_present none~remove_if_present->proc~json_value_remove_if_present none~string_info->proc~json_string_info none~update~2 json_core%update none~update~2->proc~json_update_integer none~update~2->proc~json_update_logical none~update~2->proc~json_update_real none~update~2->proc~json_update_string proc~json_update_real32 json_core%json_update_real32 none~update~2->proc~json_update_real32 none~valid_path~2 json_core%valid_path none~valid_path~2->proc~json_valid_path proc~convert json_core%convert proc~convert->none~info~2 proc~json_add_integer_by_path json_core%json_add_integer_by_path proc~json_add_integer_by_path->none~info~2 none~create json_core%create proc~json_add_integer_by_path->none~create proc~json_add_integer_vec_by_path json_core%json_add_integer_vec_by_path proc~json_add_integer_vec_by_path->none~info~2 proc~json_add_integer_vec_by_path->none~add~2 proc~json_add_integer_vec_by_path->none~create proc~json_add_logical_by_path json_core%json_add_logical_by_path proc~json_add_logical_by_path->none~info~2 proc~json_add_logical_by_path->none~create proc~json_add_logical_vec_by_path json_core%json_add_logical_vec_by_path proc~json_add_logical_vec_by_path->none~info~2 proc~json_add_logical_vec_by_path->none~add~2 proc~json_add_logical_vec_by_path->none~create proc~json_add_member_by_path json_core%json_add_member_by_path proc~json_add_member_by_path->none~info~2 proc~json_add_member_by_path->none~create proc~json_add_real_by_path json_core%json_add_real_by_path proc~json_add_real_by_path->none~info~2 proc~json_add_real_by_path->none~create proc~json_add_real_vec_by_path json_core%json_add_real_vec_by_path proc~json_add_real_vec_by_path->none~info~2 proc~json_add_real_vec_by_path->none~add~2 proc~json_add_real_vec_by_path->none~create proc~json_add_string_by_path json_core%json_add_string_by_path proc~json_add_string_by_path->none~info~2 proc~json_add_string_by_path->none~create proc~json_add_string_vec_by_path json_core%json_add_string_vec_by_path proc~json_add_string_vec_by_path->none~info~2 proc~json_add_string_vec_by_path->none~add~2 proc~json_add_string_vec_by_path->none~create proc~json_file_load json_file%json_file_load proc~json_file_load->none~load~2 proc~json_file_load_from_string json_file%json_file_load_from_string proc~json_file_load_from_string->none~deserialize~2 proc~json_file_remove json_file%json_file_remove proc~json_file_remove->none~remove_if_present proc~json_file_update_integer json_file%json_file_update_integer proc~json_file_update_integer->none~update~2 proc~json_file_update_logical json_file%json_file_update_logical proc~json_file_update_logical->none~update~2 proc~json_file_update_real json_file%json_file_update_real proc~json_file_update_real->none~update~2 proc~json_file_update_string json_file%json_file_update_string proc~json_file_update_string->none~update~2 proc~json_file_valid_path json_file%json_file_valid_path proc~json_file_valid_path->none~valid_path~2 proc~json_file_valid_path_op json_file%json_file_valid_path_op proc~json_file_valid_path_op->none~valid_path~2 proc~json_file_variable_info json_file%json_file_variable_info proc~json_file_variable_info->none~info~2 proc~json_file_variable_matrix_info json_file%json_file_variable_matrix_info proc~json_file_variable_matrix_info->none~matrix_info~2 proc~json_get_path json_core%json_get_path proc~json_get_path->none~info~2 proc~json_is_vector->none~info~2 proc~json_matrix_info->none~info~2 proc~json_update_real32->none~update~2 proc~json_update_string_name_ascii json_update_string_name_ascii proc~json_update_string_name_ascii->none~update~2 proc~json_update_string_val_ascii json_update_string_val_ascii proc~json_update_string_val_ascii->none~update~2 proc~json_value_add_member json_core%json_value_add_member proc~json_value_add_member->none~info~2 proc~json_value_reverse json_core%json_value_reverse proc~json_value_reverse->none~info~2 proc~wrap_json_file_get_alloc_string_vec wrap_json_file_get_alloc_string_vec proc~wrap_json_file_get_alloc_string_vec->none~get proc~wrap_json_file_get_integer wrap_json_file_get_integer proc~wrap_json_file_get_integer->none~get proc~wrap_json_file_get_integer_vec wrap_json_file_get_integer_vec proc~wrap_json_file_get_integer_vec->none~get proc~wrap_json_file_get_logical wrap_json_file_get_logical proc~wrap_json_file_get_logical->none~get proc~wrap_json_file_get_logical_vec wrap_json_file_get_logical_vec proc~wrap_json_file_get_logical_vec->none~get proc~wrap_json_file_get_object wrap_json_file_get_object proc~wrap_json_file_get_object->none~get proc~wrap_json_file_get_real wrap_json_file_get_real proc~wrap_json_file_get_real->none~get proc~wrap_json_file_get_real32 wrap_json_file_get_real32 proc~wrap_json_file_get_real32->none~get proc~wrap_json_file_get_real32_vec wrap_json_file_get_real32_vec proc~wrap_json_file_get_real32_vec->none~get proc~wrap_json_file_get_real_vec wrap_json_file_get_real_vec proc~wrap_json_file_get_real_vec->none~get proc~wrap_json_file_get_string wrap_json_file_get_string proc~wrap_json_file_get_string->none~get proc~wrap_json_file_get_string_vec wrap_json_file_get_string_vec proc~wrap_json_file_get_string_vec->none~get proc~wrap_json_info_by_path wrap_json_info_by_path proc~wrap_json_info_by_path->none~info~2 proc~wrap_json_matrix_info_by_path wrap_json_matrix_info_by_path proc~wrap_json_matrix_info_by_path->none~matrix_info~2 proc~wrap_json_parse_string wrap_json_parse_string proc~wrap_json_parse_string->none~deserialize~2 proc~wrap_json_update_integer wrap_json_update_integer proc~wrap_json_update_integer->none~update~2 proc~wrap_json_update_logical wrap_json_update_logical proc~wrap_json_update_logical->none~update~2 proc~wrap_json_update_real wrap_json_update_real proc~wrap_json_update_real->none~update~2 proc~wrap_json_update_real32 wrap_json_update_real32 proc~wrap_json_update_real32->none~update~2 proc~wrap_json_update_string wrap_json_update_string proc~wrap_json_update_string->none~update~2 proc~wrap_json_valid_path wrap_json_valid_path proc~wrap_json_valid_path->none~valid_path~2 proc~wrap_json_value_remove_if_present wrap_json_value_remove_if_present proc~wrap_json_value_remove_if_present->none~remove_if_present none~add_by_path->proc~json_add_integer_by_path none~add_by_path->proc~json_add_integer_vec_by_path none~add_by_path->proc~json_add_logical_by_path none~add_by_path->proc~json_add_logical_vec_by_path none~add_by_path->proc~json_add_member_by_path none~add_by_path->proc~json_add_real_by_path none~add_by_path->proc~json_add_real_vec_by_path none~add_by_path->proc~json_add_string_by_path none~add_by_path->proc~json_add_string_vec_by_path proc~json_add_real32_by_path json_core%json_add_real32_by_path none~add_by_path->proc~json_add_real32_by_path proc~json_add_real32_vec_by_path json_core%json_add_real32_vec_by_path none~add_by_path->proc~json_add_real32_vec_by_path none~add~2->proc~json_value_add_member proc~json_value_add_integer json_core%json_value_add_integer none~add~2->proc~json_value_add_integer proc~json_value_add_integer_vec json_core%json_value_add_integer_vec none~add~2->proc~json_value_add_integer_vec proc~json_value_add_logical json_core%json_value_add_logical none~add~2->proc~json_value_add_logical proc~json_value_add_logical_vec json_core%json_value_add_logical_vec none~add~2->proc~json_value_add_logical_vec proc~json_value_add_null json_core%json_value_add_null none~add~2->proc~json_value_add_null proc~json_value_add_real json_core%json_value_add_real none~add~2->proc~json_value_add_real proc~json_value_add_real32 json_core%json_value_add_real32 none~add~2->proc~json_value_add_real32 proc~json_value_add_real32_vec json_core%json_value_add_real32_vec none~add~2->proc~json_value_add_real32_vec proc~json_value_add_real_vec json_core%json_value_add_real_vec none~add~2->proc~json_value_add_real_vec proc~json_value_add_string json_core%json_value_add_string none~add~2->proc~json_value_add_string proc~json_value_add_string_vec json_core%json_value_add_string_vec none~add~2->proc~json_value_add_string_vec none~deserialize json_file%deserialize none~deserialize->proc~json_file_load_from_string none~get_path json_core%get_path none~get_path->proc~json_get_path none~info json_file%info none~info->proc~json_file_variable_info none~matrix_info json_file%matrix_info none~matrix_info->proc~json_file_variable_matrix_info none~remove json_file%remove none~remove->proc~json_file_remove none~update json_file%update none~update->proc~json_file_update_integer none~update->proc~json_file_update_logical none~update->proc~json_file_update_real none~update->proc~json_file_update_string proc~json_file_update_real32 json_file%json_file_update_real32 none~update->proc~json_file_update_real32 none~valid_path json_file%valid_path none~valid_path->proc~json_file_valid_path proc~json_add_string_by_path_path_ascii json_add_string_by_path_path_ascii proc~json_add_string_by_path_path_ascii->proc~json_add_string_by_path proc~json_add_string_by_path_value_ascii json_add_string_by_path_value_ascii proc~json_add_string_by_path_value_ascii->proc~json_add_string_by_path proc~json_add_string_vec_by_path_path_ascii json_add_string_vec_by_path_path_ascii proc~json_add_string_vec_by_path_path_ascii->proc~json_add_string_vec_by_path proc~json_add_string_vec_by_path_value_ascii json_add_string_vec_by_path_value_ascii proc~json_add_string_vec_by_path_value_ascii->proc~json_add_string_vec_by_path proc~json_get_by_path_jsonpath_bracket json_core%json_get_by_path_jsonpath_bracket proc~json_get_by_path_jsonpath_bracket->proc~convert proc~json_get_by_path_jsonpath_bracket->none~add~2 proc~wrap_json_add_integer_by_path wrap_json_add_integer_by_path proc~wrap_json_add_integer_by_path->proc~json_add_integer_by_path proc~wrap_json_add_integer_vec_by_path wrap_json_add_integer_vec_by_path proc~wrap_json_add_integer_vec_by_path->proc~json_add_integer_vec_by_path proc~wrap_json_add_logical_by_path wrap_json_add_logical_by_path proc~wrap_json_add_logical_by_path->proc~json_add_logical_by_path proc~wrap_json_add_logical_vec_by_path wrap_json_add_logical_vec_by_path proc~wrap_json_add_logical_vec_by_path->proc~json_add_logical_vec_by_path proc~wrap_json_add_member_by_path wrap_json_add_member_by_path proc~wrap_json_add_member_by_path->proc~json_add_member_by_path proc~wrap_json_add_real_by_path wrap_json_add_real_by_path proc~wrap_json_add_real_by_path->proc~json_add_real_by_path proc~wrap_json_add_real_vec_by_path wrap_json_add_real_vec_by_path proc~wrap_json_add_real_vec_by_path->proc~json_add_real_vec_by_path proc~wrap_json_add_string_by_path wrap_json_add_string_by_path proc~wrap_json_add_string_by_path->proc~json_add_string_by_path proc~wrap_json_add_string_vec_by_path wrap_json_add_string_vec_by_path proc~wrap_json_add_string_vec_by_path->proc~json_add_string_vec_by_path proc~assign_string_to_json_file json_file%assign_string_to_json_file proc~assign_string_to_json_file->none~deserialize proc~initialize_json_file_from_string initialize_json_file_from_string proc~initialize_json_file_from_string->none~deserialize proc~initialize_json_file_from_string_v2 initialize_json_file_from_string_v2 proc~initialize_json_file_from_string_v2->none~deserialize proc~json_add_real32_by_path->none~add_by_path proc~json_add_real32_vec_by_path->none~add_by_path proc~json_check_children_for_duplicate_keys json_core%json_check_children_for_duplicate_keys proc~json_check_children_for_duplicate_keys->none~get_path proc~json_create_by_path json_core%json_create_by_path proc~json_create_by_path->proc~json_get_by_path_jsonpath_bracket proc~json_get_by_path_default json_core%json_get_by_path_default proc~json_create_by_path->proc~json_get_by_path_default proc~json_file_add_integer json_file%json_file_add_integer proc~json_file_add_integer->none~add_by_path proc~json_file_add_integer_vec json_file%json_file_add_integer_vec proc~json_file_add_integer_vec->none~add_by_path proc~json_file_add_logical json_file%json_file_add_logical proc~json_file_add_logical->none~add_by_path proc~json_file_add_logical_vec json_file%json_file_add_logical_vec proc~json_file_add_logical_vec->none~add_by_path proc~json_file_add_object json_file%json_file_add_object proc~json_file_add_object->none~add_by_path proc~json_file_add_real json_file%json_file_add_real proc~json_file_add_real->none~add_by_path proc~json_file_add_real32 json_file%json_file_add_real32 proc~json_file_add_real32->none~add_by_path proc~json_file_add_real32_vec json_file%json_file_add_real32_vec proc~json_file_add_real32_vec->none~add_by_path proc~json_file_add_real_vec json_file%json_file_add_real_vec proc~json_file_add_real_vec->none~add_by_path proc~json_file_add_string json_file%json_file_add_string proc~json_file_add_string->none~add_by_path proc~json_file_add_string_vec json_file%json_file_add_string_vec proc~json_file_add_string_vec->none~add_by_path proc~json_file_update_real32->none~update proc~json_file_update_string_name_ascii json_file_update_string_name_ascii proc~json_file_update_string_name_ascii->none~update proc~json_file_update_string_val_ascii json_file_update_string_val_ascii proc~json_file_update_string_val_ascii->none~update proc~json_get_by_path->proc~json_get_by_path_jsonpath_bracket proc~json_get_by_path->proc~json_get_by_path_default proc~json_get_by_path_default->none~add~2 proc~json_value_add_integer->none~add~2 proc~json_value_add_integer_vec->none~add~2 proc~json_value_add_logical->none~add~2 proc~json_value_add_logical_vec->none~add~2 proc~json_value_add_null->none~add~2 proc~json_value_add_real->none~add~2 proc~json_value_add_real32->none~add~2 proc~json_value_add_real32_vec->none~add~2 proc~json_value_add_real_vec->none~add~2 proc~json_value_add_string->none~add~2 proc~json_value_add_string_name_ascii json_value_add_string_name_ascii proc~json_value_add_string_name_ascii->none~add~2 proc~json_value_add_string_val_ascii json_value_add_string_val_ascii proc~json_value_add_string_val_ascii->none~add~2 proc~json_value_add_string_vec->none~add~2 proc~json_value_add_string_vec_name_ascii json_value_add_string_vec_name_ascii proc~json_value_add_string_vec_name_ascii->none~add~2 proc~json_value_add_string_vec_val_ascii json_value_add_string_vec_val_ascii proc~json_value_add_string_vec_val_ascii->none~add~2 proc~wrap_json_add_real32_by_path wrap_json_add_real32_by_path proc~wrap_json_add_real32_by_path->none~add_by_path proc~wrap_json_add_real32_vec_by_path wrap_json_add_real32_vec_by_path proc~wrap_json_add_real32_vec_by_path->none~add_by_path proc~wrap_json_file_load_from_string wrap_json_file_load_from_string proc~wrap_json_file_load_from_string->none~deserialize proc~wrap_json_file_remove wrap_json_file_remove proc~wrap_json_file_remove->none~remove proc~wrap_json_file_update_integer wrap_json_file_update_integer proc~wrap_json_file_update_integer->none~update proc~wrap_json_file_update_logical wrap_json_file_update_logical proc~wrap_json_file_update_logical->none~update proc~wrap_json_file_update_real wrap_json_file_update_real proc~wrap_json_file_update_real->none~update proc~wrap_json_file_update_real32 wrap_json_file_update_real32 proc~wrap_json_file_update_real32->none~update proc~wrap_json_file_update_string wrap_json_file_update_string proc~wrap_json_file_update_string->none~update proc~wrap_json_file_valid_path wrap_json_file_valid_path proc~wrap_json_file_valid_path->none~valid_path proc~wrap_json_file_variable_info wrap_json_file_variable_info proc~wrap_json_file_variable_info->none~info proc~wrap_json_file_variable_matrix_info wrap_json_file_variable_matrix_info proc~wrap_json_file_variable_matrix_info->none~matrix_info proc~wrap_json_get_path wrap_json_get_path proc~wrap_json_get_path->none~get_path proc~wrap_json_value_add_integer wrap_json_value_add_integer proc~wrap_json_value_add_integer->none~add~2 proc~wrap_json_value_add_integer_vec wrap_json_value_add_integer_vec proc~wrap_json_value_add_integer_vec->none~add~2 proc~wrap_json_value_add_logical wrap_json_value_add_logical proc~wrap_json_value_add_logical->none~add~2 proc~wrap_json_value_add_logical_vec wrap_json_value_add_logical_vec proc~wrap_json_value_add_logical_vec->none~add~2 proc~wrap_json_value_add_null wrap_json_value_add_null proc~wrap_json_value_add_null->none~add~2 proc~wrap_json_value_add_real wrap_json_value_add_real proc~wrap_json_value_add_real->none~add~2 proc~wrap_json_value_add_real32 wrap_json_value_add_real32 proc~wrap_json_value_add_real32->none~add~2 proc~wrap_json_value_add_real32_vec wrap_json_value_add_real32_vec proc~wrap_json_value_add_real32_vec->none~add~2 proc~wrap_json_value_add_real_vec wrap_json_value_add_real_vec proc~wrap_json_value_add_real_vec->none~add~2 proc~wrap_json_value_add_string wrap_json_value_add_string proc~wrap_json_value_add_string->none~add~2 proc~wrap_json_value_add_string_vec wrap_json_value_add_string_vec proc~wrap_json_value_add_string_vec->none~add~2 interface~json_file json_file interface~json_file->proc~initialize_json_file_from_string interface~json_file->proc~initialize_json_file_from_string_v2 none~create->proc~json_create_by_path proc~json_file_add_string_path_ascii json_file_add_string_path_ascii proc~json_file_add_string_path_ascii->proc~json_file_add_string proc~json_file_add_string_value_ascii json_file_add_string_value_ascii proc~json_file_add_string_value_ascii->proc~json_file_add_string proc~json_file_add_string_vec_path_ascii json_file_add_string_vec_path_ascii proc~json_file_add_string_vec_path_ascii->proc~json_file_add_string_vec proc~json_file_add_string_vec_vec_ascii json_file_add_string_vec_vec_ascii proc~json_file_add_string_vec_vec_ascii->proc~json_file_add_string_vec proc~wrap_assign_string_to_json_file wrap_assign_string_to_json_file proc~wrap_assign_string_to_json_file->proc~assign_string_to_json_file proc~wrap_initialize_json_file_from_string wrap_initialize_json_file_from_string proc~wrap_initialize_json_file_from_string->proc~initialize_json_file_from_string proc~wrap_initialize_json_file_from_string_v2 wrap_initialize_json_file_from_string_v2 proc~wrap_initialize_json_file_from_string_v2->proc~initialize_json_file_from_string_v2 proc~wrap_json_file_add_integer wrap_json_file_add_integer proc~wrap_json_file_add_integer->proc~json_file_add_integer proc~wrap_json_file_add_integer_vec wrap_json_file_add_integer_vec proc~wrap_json_file_add_integer_vec->proc~json_file_add_integer_vec proc~wrap_json_file_add_logical wrap_json_file_add_logical proc~wrap_json_file_add_logical->proc~json_file_add_logical proc~wrap_json_file_add_logical_vec wrap_json_file_add_logical_vec proc~wrap_json_file_add_logical_vec->proc~json_file_add_logical_vec proc~wrap_json_file_add_object wrap_json_file_add_object proc~wrap_json_file_add_object->proc~json_file_add_object proc~wrap_json_file_add_real wrap_json_file_add_real proc~wrap_json_file_add_real->proc~json_file_add_real proc~wrap_json_file_add_real32 wrap_json_file_add_real32 proc~wrap_json_file_add_real32->proc~json_file_add_real32 proc~wrap_json_file_add_real32_vec wrap_json_file_add_real32_vec proc~wrap_json_file_add_real32_vec->proc~json_file_add_real32_vec proc~wrap_json_file_add_real_vec wrap_json_file_add_real_vec proc~wrap_json_file_add_real_vec->proc~json_file_add_real_vec proc~wrap_json_file_add_string wrap_json_file_add_string proc~wrap_json_file_add_string->proc~json_file_add_string proc~wrap_json_file_add_string_vec wrap_json_file_add_string_vec proc~wrap_json_file_add_string_vec->proc~json_file_add_string_vec proc~wrap_json_create_by_path wrap_json_create_by_path proc~wrap_json_create_by_path->none~create

Source Code

    pure function valid_json_hex(str) result(valid)

    implicit none

    logical(LK)                         :: valid  !! is str a value 4-digit hex string
    character(kind=CK,len=*),intent(in) :: str    !! the string to check.

    integer(IK) :: n  !! length of `str`
    integer(IK) :: i  !! counter

    !> an array of the valid hex characters
    character(kind=CK,len=1),dimension(22),parameter :: valid_chars = &
        [ (achar(i),i=48,57), & ! decimal digits
          (achar(i),i=65,70), & ! capital A-F
          (achar(i),i=97,102) ] ! lowercase a-f

    !initialize
    valid = .false.

    !check all the characters in the string:
    n = len(str)
    if (n==4) then
        do i=1,n
            if (.not. any(str(i:i)==valid_chars)) return
        end do
        valid = .true.    !all are in the set, so it is OK
    end if

    end function valid_json_hex