internal library

Shared plumbing for the minted_* siblings. Not public API: no semver promise, and a consumer importing it is on their own.

Dart privacy is library-scoped, so anything 2 siblings share has to be importable to be shared at all.

Siblings resolve against any minted 3.x, so this is frozen within a major. Adding is fine, breaking waits for the next core major.

Constants

hexDigitsPerByte → const int

How many hex digits spell one byte.

hexRadix → const int

The radix hex is written in.

hyphen → const String

The hyphen a canonical form puts back after parsing, where the standard fixes its position.

zeroPad → const String

The character a fixed-width field is left-padded with.

Properties

cosmeticSeparators → RegExp

Whitespace and hyphens, the separators a standard treats as cosmetic grouping, for a value whose charset excludes both.

final

digitsOnly → RegExp

A whole string of nothing but decimal digits.

final

whitespace → RegExp

Whitespace alone, for a charset of A-Z0-9, where a hyphen is invalid rather than cosmetic.

final

Functions

compact(String input) → String

input with its cosmetic grouping stripped, for a digits-only charset where upper-casing would do nothing.

compactUpperCase(String input) → String

input compacted and upper-cased, for a charset that admits letters too.

decimalCodeUnit(int digitValue) → int

The ASCII code unit spelling digitValue, the inverse of decimalValue. Assumes 0-9, which is what a validated digit sequence holds.

decimalValue(int codeUnit) → int

The value of a single decimal character, 0-9. Anything else gives -1, so a number built out of junk fails validation downstream instead of throwing here.

decimalValues(String input, [int start = 0, int? end]) → List<int>

The values of input's characters from start to end (exclusive, the whole string when omitted), ready for Digits.tryFrom.

hexBytes(String hex) → Uint8List

The bytes hex spells, 2 digits per byte.

hexDigits(Iterable<int> bytes) → String

bytes as lowercase hex, 2 digits each. The inverse of hexBytes.

luhnCheckDigit(String bodyDigits) → String

The ISO/IEC 7812-1 Annex B (Luhn) mod-10 check digit for bodyDigits, everything before a card number's last digit. Assumed separator-free.

positiveZeroed(double value) → double

value with a negative zero's sign cleared. -0.0 already equals 0.0 and hashes alike, so it's only the rendered form that needs this.

unspacedUpperCase(String input) → String

input with whitespace alone stripped, then upper-cased, for a charset where a hyphen is invalid rather than cosmetic.