Michael Milton
5 years ago
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| @@ -163,6 +163,11 @@ Using Lark? Send me a message and I'll add your project! | |||||
| Lark comes with a tool to convert grammars from [Nearley](https://github.com/Hardmath123/nearley), a popular Earley library for Javascript. It uses [Js2Py](https://github.com/PiotrDabkowski/Js2Py) to convert and run the Javascript postprocessing code segments. | Lark comes with a tool to convert grammars from [Nearley](https://github.com/Hardmath123/nearley), a popular Earley library for Javascript. It uses [Js2Py](https://github.com/PiotrDabkowski/Js2Py) to convert and run the Javascript postprocessing code segments. | ||||
| First, ensure you have Lark installed with the `nearley` component included: | |||||
| ```bash | |||||
| pip install lark-parser[nearley] | |||||
| ``` | |||||
| Here's an example: | Here's an example: | ||||
| ```bash | ```bash | ||||
| git clone https://github.com/Hardmath123/nearley | git clone https://github.com/Hardmath123/nearley | ||||
| @@ -177,6 +182,12 @@ You can use the output as a regular python module: | |||||
| 0.38981434460254655 | 0.38981434460254655 | ||||
| ``` | ``` | ||||
| The Nearley converter also supports an experimental converter for newer JavaScript (ES6+), using the `--es6` flag: | |||||
| ```bash | |||||
| git clone https://github.com/Hardmath123/nearley | |||||
| python -m lark.tools.nearley nearley/examples/calculator/arithmetic.ne main nearley --es6 > ncalc.py | |||||
| ``` | |||||
| ## License | ## License | ||||