Acme.BookStore.HttpApi.Host/node_modules/ret/README.md
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# Regular Expression Tokenizer
Tokenizes strings that represent a regular expressions.
[](http://travis-ci.org/fent/ret.js)
[](https://david-dm.org/fent/ret.js)
[](https://codecov.io/gh/fent/ret.js)
# Usage
```js
var ret = require('ret');
var tokens = ret(/foo|bar/.source);
```
`tokens` will contain the following object
```js
{
"type": ret.types.ROOT
"options": [
[ { "type": ret.types.CHAR, "value", 102 },
{ "type": ret.types.CHAR, "value", 111 },
{ "type": ret.types.CHAR, "value", 111 } ],
[ { "type": ret.types.CHAR, "value", 98 },
{ "type": ret.types.CHAR, "value", 97 },
{ "type": ret.types.CHAR, "value", 114 } ]
]
}
```
# Token Types
`ret.types` is a collection of the various token types exported by ret.
### ROOT
Only used in the root of the regexp. This is needed due to the posibility of the root containing a pipe `|` character. In that case, the token will have an `options` key that will be an array of arrays of tokens. If not, it will contain a `stack` key that is an array of tokens.
```js
{
"type": ret.types.ROOT,
"stack": [token1, token2...],
}
```
```js
{
"type": ret.types.ROOT,
"options" [
[token1, token2...],
[othertoken1, othertoken2...]
...
],
}
```
### GROUP
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