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# regjsgen [](https://travis-ci.org/bnjmnt4n/regjsgen) [](https://codecov.io/gh/bnjmnt4n/regjsgen)
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Generate regular expressions from [regjsparser](https://github.com/jviereck/regjsparser)’s AST.
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## Installation
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```bash
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npm install --save regjsgen
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```
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## API
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### `regjsgen.generate(ast)`
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This function accepts an abstract syntax tree representing a regular expression, and returns the generated regular expression string.
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```js
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var regjsparser = require('regjsparser');
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var regjsgen = require('regjsgen');
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// Generate an AST with `regjsparser`.
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var ast = regjsparser.parse(regex);
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// Modify AST
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// …
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// Generate `RegExp` string with `regjsgen`.
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regex = regjsgen.generate(ast);
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```
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## Support
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Tested in Node.js 0.10, 0.12, 4, 6 and 8.
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