The central feature of Billig is that expenses are meant to be spread over a relevant period. A budget manager that registers expenses and incomes only for the day they occur cannot provide accurate insights due to high variability.
Billig aims to remove this limitation by having all transactions be registered with the timeframe during which they are relevant.
Billig is a rewrite from Python to Rust of another project of mine; when feature parity is reached it will provide graphical representations and tabulated summaries. The original project used Python dictionaries to store data, Billig aims to offer a better experience by using a specifically-designed DSL.
WIP: Billig does not yet have a command-line interface
Data is stored in .bil files, which are parsed using pest.rs
The following example gives an overview of the available constructs.
```java
2020:
Sep:
01: val -300, type Mov, span Year
// this is a template
!food_supplies value { // it takes a single positional argument
val @Neg *value, // expands to an amount
type Food,
span Month
!restaurant value tip=0 { // tip is an optional argument val @Neg @Sum *value *tip, // total value is the sum of the two type Food, span Day, tag @Concat "Restaurant " @Weekday ". " @Date " at " *place, // this forces place to be // passed as a named argument }
2020:
Dec:
15: !food_supplies 69.42;
// expands to:
// val -69.42, type Food, span Month