Crate rustledger_booking 

Beancount booking engine with interpolation.

This crate provides:

• Transaction interpolation (filling in missing amounts)
• Transaction balancing verification
• Tolerance calculation

Interpolation

When a transaction has exactly one posting per currency without an amount, that amount can be calculated to make the transaction balance.

use rustledger_booking::interpolate;

// Transaction with one missing amount
// 2024-01-15 * "Groceries"
//   Expenses:Food  50.00 USD
//   Assets:Cash               <- amount inferred as -50.00 USD

Structs

BookedTransaction

Result of booking a single transaction.

BookingEngine

Booking engine that tracks inventory across transactions.

CapitalGain

A capital gain or loss from a lot sale.

InterpolationResult

Result of interpolation.

PadError

Error during pad processing.

PadResult

Result of processing pad directives.

Enums

BookingError

Errors that can occur during booking.

InterpolationError

Errors that can occur during interpolation.

Functions

book_transactions

Book and interpolate a list of transactions.

calculate_residual

Calculate the residual (imbalance) of a transaction.

calculate_residual_precise

Calculate the residual of a transaction using arbitrary-precision arithmetic.

calculate_tolerance

Calculate the tolerance for a set of amounts.

expand_pads

Expand a ledger by replacing pad directives with synthetic transactions.

interpolate

Interpolate missing amounts in a transaction.

is_balanced

Check if a transaction is balanced within tolerance.

merge_with_padding

Merge original directives with padding transactions, maintaining date order.

normalize_prices

Normalize total prices (@@) to per-unit prices (@) on a transaction.

process_pads

Process pad directives and generate synthetic transactions.