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Update README.md

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Eric Chiang 2014-09-17 21:50:06 -04:00
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@ -131,6 +131,36 @@ $ pup < robots.html table -l 2
</table> </table>
``` ```
####Slices
Slices allow you to do simple `{start:end:by}` operations to limit the number of nodes
selected for the next round of selection.
Provide one number for a simple index.
```bash
$ pup < robots.html a {0}
<a id="top">
</a>
```
You can provide an end to limit the number of nodes selected.
```bash
$ # {:3} is the same as {0:3}
$ pup < robots.html a {:3}
<a id="top">
</a>
<a href="#mw-navigation">
navigation
</a>
<a href="#p-search">
search
</a>
```
The `by` index still needs work.
## Implemented Selectors ## Implemented Selectors
For further examples of these selectors head over to [w3schools]( For further examples of these selectors head over to [w3schools](
@ -161,8 +191,6 @@ cat index.html | pup element#id[attribute=value]
Non-HTML selectors which effect the output type are implemented as functions Non-HTML selectors which effect the output type are implemented as functions
which can be provided as a final argument. which can be provided as a final argument.
As of now, `text{}` is the only implemented function.
#### `text{}` #### `text{}`
Print all text from selected nodes and children in depth first order. Print all text from selected nodes and children in depth first order.