rust-ledger-parser

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rust-ledger-parser

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Rust library for parsing ledger cli (https://www.ledger-cli.org/) input files.

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# ledger-parser

[![Crates.io Version](https://img.shields.io/crates/v/ledger-parser.svg)](https://crates.io/crates/ledger-parser)
[![Docs.rs Version](https://docs.rs/ledger-parser/badge.svg)](https://docs.rs/ledger-parser)
[![License Unlicense](https://img.shields.io/crates/l/ledger-parser.svg)](http://unlicense.org/UNLICENSE)

Rust library for parsing [Ledger-cli](https://www.ledger-cli.org/) input files.

## File format

Only a subset of the ledger-cli's file format is implemented.

Supported elements:

- Line comments (starting with: `; # % | *`)

- Inline comments (starting with `;`)

- Transaction headers with format (minimum two spaces or one tab between `DESC` and `NOTE`):

```ledger-cli
  DATE[=EDATE] [*|!] [(CODE)] DESC  [; NOTE]
  ```

- Transaction postings with format (minimum two spaces or one tab between `ACCOUNT` and `AMOUNT`):

```ledger-cli
    ACCOUNT  [AMOUNT] [= BALANCE] [; NOTE]
  ```

- Virtual accounts are supported

- Posting comments with dates, effective dates, and metadata tags are supported
  ```ledger-cli
    ACCOUNT  [AMOUNT] [= BALANCE]  ; [YYYY-MM-DD]
    ACCOUNT  [AMOUNT] [= BALANCE]  ; [=YYYY-MM-DD]
    ACCOUNT  [AMOUNT] [= BALANCE]  ; :TAG1:TAG2:
    ACCOUNT  [AMOUNT] [= BALANCE]  ; Tag: String Value
    ACCOUNT  [AMOUNT] [= BALANCE]  ; Tag:: -1
    ACCOUNT  [AMOUNT] [= BALANCE]  ; Tag:: 1.0
    ACCOUNT  [AMOUNT] [= BALANCE]  ; Tag:: [YYYY-MM-DD]
  ```

- `AMOUNT` can be combined with lot and commodity prices ({}, {{}}, @, @@)

- Commodity prices with format:

```ledger-cli
  P DATE SYMBOL PRICE
  ```

- Command directives: `include`

## Example

Parsing:

```rust
let ledger: ledger_parser::Ledger = r#"; Example 1
2018-10-01=2018-10-14 ! (123) Description
  ; Transaction comment
  TEST:Account 123  $1.20
  ; Posting comment
  TEST:Account 345  -$1.20"#
    .parse()?;
```

Serializing:

```rust
use ledger_parser::{ Serializer, SerializerSettings };

println!("{}", ledger);
println!("{}", ledger.to_string_pretty(&SerializerSettings::default().with_indent("\t")));
```

## See also

- [ledger-utils](https://crates.io/crates/ledger-utils) - ledger-cli file processing Rust library, useful for calculating balances, creating reports etc.

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