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# ListExp [ WIP ]
Regular expression-like syntax for list operations. Nobody asked for this so here it is.
[](https://forthebadge.com)
[](https://forthebadge.com)
[](https://forthebadge.com)
### Syntax
Whitespaces are ignore (except within literals)
* `\s` => Any string
* `\n` => Any number
* `\b` => Any boolean
* `\T` => Any truthy value
* `\F` => Any falsey value
* `a|b` => match `a` **or** `b`
* `a*` => Zero or more consecutive instances of pattern `a` in the list
* `a+` => One or more consecutive instances of pattern `a` in the list
* `(\s\T)` => Group (example matches any non-empty string)
* `^a$` => `^` indicates start of list, and `$` indicates end of list [TODO]
* `a,b` => match `a` followed by `b` (next item)
* `[name \s\T]` => match property of object (example matches items with property `name` as non-empty string)
* `> n` | `>= n` | `< n` | `<= n` => Comparison with literal number [TODO]
### Examples
```js
// | Match for any number or any non-empty string or any object with `prop` is true
matchAll(/ \n | \s\T | [prop true] /, [null, 23, 'wow', '', { prop: true }, { prop: false } ]
// > {
// groups: [
// { index: 1, value: 23 }, // \n
// { index: 2, value: 'wow' }, // \s\T
// { index: 4, value: { prop: true } }, // [prop true]
// ]
// }
```
```js
// | Match for property `seperator` true, followed by one or more list of id's that are non-empty strings
matchAll(/ [seperator true], [id \s\T]+ /, [
{ seperator: true },
{ id: '1' },
{ id: '2' },
{ id: '3' },
{ seperator: true },
{ id: '4' },
{ id: '5' },
{ id: '6' },
])
// > {
// groups: [
// {
// index: 0,
// value: [
// [{ value: { seperator: true }, index: 0 }],
// [{ value: [{ id: '1' }, { id: '2' }, { id: '3' }], index: 1 }],
// ],
// },
// {
// index: 4,
// value: [
// [{ value: { seperator: true }, index: 4 }],
// [{ value: [{ id: '4' }, { id: '5' }, { id: '6' }], index: 5 }],
// ],
// },
// ]
// }
```
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