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Clauderic Demers committed Sep 22, 2016
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1 change: 1 addition & 0 deletions .gitignore
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node_modules
21 changes: 21 additions & 0 deletions LICENSE
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The MIT License (MIT)

Copyright (c) 2016, Claudéric Demers

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
42 changes: 42 additions & 0 deletions README.md
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# React Native Highlight Words
React Native component used to highlight words within a larger body of text. This is a port port of [react-highlight-words](https://github.com/bvaughn/react-highlight-words), by Brian Vaughn.

## Installation
Using [npm](https://www.npmjs.com/package/react-native-highlight-words):
```
npm i --save react-native-highlight-words
```

## Usage

To use it, just provide it with an array of search terms and a body of text to highlight:

```jsx
import Highlighter from 'react-native-highlight-words';

<Highlighter
highlightStyle={{backgroundColor: 'yellow'}}
searchWords={['and', 'or', 'the']}
textToHighlight='The dog is chasing the cat. Or perhaps they're just playing?'
/>
```
And the `Highlighter` component will highlight all occurrences of search terms within the text:
<img width="368" alt="screen shot 2015-12-19 at 8 23 43 am" src="https://cloud.githubusercontent.com/assets/29597/11914033/e3c319f6-a629-11e5-896d-1a5ce22c9ea2.png">
## Props
| Property | Type | Required? | Description |
|:----------------|:--------------|:---------:|:------------------------------------------------------------------------------------------------------------------------|
| autoEscape | Boolean | | Escape characters which are meaningful in regular expressions |
| highlightStyle | Object | | Styles applied to highlighted text |
| sanitize | Function | | Process each search word and text to highlight before comparing (eg remove accents); signature `(text: string): string` |
| searchWords | Array<String> | ✓ | Array of search words |
| style | Object | | Styles applied to the text wrapper |
| textToHighlight | String | ✓ | Text to highlight matches in |
## License
MIT License - fork, modify and use however you want.
47 changes: 47 additions & 0 deletions index.js
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import React, {PropTypes} from 'react';
import {Text} from 'react-native';
import {findAll} from 'highlight-words-core';

Highlighter.propTypes = {
autoEscape: PropTypes.bool,
highlightStyle: Text.propTypes.style,
searchWords: PropTypes.arrayOf(PropTypes.string).isRequired,
textToHighlight: PropTypes.string.isRequired,
sanitize: PropTypes.func,
style: Text.propTypes.style
};

/**
* Highlights all occurrences of search terms (searchText) within a string (textToHighlight).
* This function returns an array of strings and <Text> elements (wrapping highlighted words).
*/
export default function Highlighter({
autoEscape,
highlightStyle,
searchWords,
textToHighlight,
sanitize,
style,
...props
}) {
const chunks = findAll({textToHighlight, searchWords, sanitize, autoEscape});

return (
<Text style={style} {...props}>
{chunks.map((chunk, index) => {
const text = textToHighlight.substr(chunk.start, chunk.end - chunk.start);

return (!chunk.highlight)
? text
: (
<Text
key={index}
style={chunk.highlight && highlightStyle}
>
{text}
</Text>
);
})}
</Text>
);
}
36 changes: 36 additions & 0 deletions package.json
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{
"name": "react-native-highlight-words",
"version": "1.0.0",
"description": "A React Native port of react-highlight-words. This component is used to highlight words within a larger body of text.",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"repository": {
"type": "git",
"url": "https://github.com/clauderic/react-native-highlight-words.git"
},
"keywords": [
"react-native",
"react",
"reactjs",
"react-component",
"highlighter",
"highlight",
"text",
"words",
"matches",
"substring",
"occurrences",
"search"
],
"author": "Clauderic Demers",
"license": "MIT",
"bugs": {
"url": "https://github.com/clauderic/react-native-highlight-words/issues"
},
"homepage": "https://github.com/clauderic/react-native-highlight-words",
"dependencies": {
"highlight-words-core": "^1.0.3"
}
}

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