Enum BpsvFieldType

pub enum BpsvFieldType {
    String(u32),
    Hex(u32),
    Decimal(u32),
}

Represents a BPSV field type with its length specification

Variants

String(u32)

String field with maximum length (0 = unlimited)

Hex(u32)

Hexadecimal field with byte count (N bytes = N*2 hex characters)

Decimal(u32)

Decimal number field with storage size in bytes (e.g., 4 = uint32)

Implementations

impl BpsvFieldType

pub fn parse(type_spec: &str) -> Result<Self>

Parse a field type from a string like “STRING:0”, “HEX:16”, “DEC:4”

Parsing is case-insensitive for the type name.

Examples

use ngdp_bpsv::BpsvFieldType;

assert_eq!(BpsvFieldType::parse("STRING:0")?, BpsvFieldType::String(0));
assert_eq!(BpsvFieldType::parse("string:0")?, BpsvFieldType::String(0));
assert_eq!(BpsvFieldType::parse("String:0")?, BpsvFieldType::String(0));
assert_eq!(BpsvFieldType::parse("HEX:16")?, BpsvFieldType::Hex(16));
assert_eq!(BpsvFieldType::parse("hex:16")?, BpsvFieldType::Hex(16));
assert_eq!(BpsvFieldType::parse("DEC:4")?, BpsvFieldType::Decimal(4));
assert_eq!(BpsvFieldType::parse("dec:4")?, BpsvFieldType::Decimal(4));

pub fn type_name(&self) -> &'static str

Get the type name (uppercase)

pub fn length(&self) -> u32

Get the length specification

pub fn is_valid_value(&self, value: &str) -> bool

Check if a string value is valid for this field type

Examples

use ngdp_bpsv::BpsvFieldType;

let string_type = BpsvFieldType::String(5);
assert!(string_type.is_valid_value("hello"));
assert!(!string_type.is_valid_value("too_long")); // > 5 chars

let hex_type = BpsvFieldType::Hex(4);  // 4 bytes = 8 hex chars
assert!(hex_type.is_valid_value("abcd1234"));
assert!(hex_type.is_valid_value("12345678"));
assert!(!hex_type.is_valid_value("xyz")); // invalid hex
assert!(!hex_type.is_valid_value("1234")); // wrong length (need 8 chars)

let dec_type = BpsvFieldType::Decimal(4);
assert!(dec_type.is_valid_value("1234"));
assert!(dec_type.is_valid_value("0"));
assert!(!dec_type.is_valid_value("abc")); // not a number

pub fn validate_value(&self, value: &str) -> Result<String>

Validate and potentially normalize a value for this field type

Returns the normalized value or an error if invalid.

Trait Implementations

impl Clone for BpsvFieldType

fn clone(&self) -> BpsvFieldType

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BpsvFieldType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for BpsvFieldType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for BpsvFieldType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for BpsvFieldType

fn eq(&self, other: &BpsvFieldType) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for BpsvFieldType

impl StructuralPartialEq for BpsvFieldType