2022-01-30 15:04:54 +00:00
html-entities
=============
Fastest HTML entities library.
Comes with both TypeScript and Flow types.
Installation
------------
```bash
$ npm install html-entities
```
Usage
-----
### encode(text, options)
Encodes text replacing HTML special characters (`< >& "'`) plus other character ranges depending on `mode` option value.
```js
import {encode} from 'html-entities';
encode('< > " \' & © ∆');
// -> '< > " ' & © ∆'
encode('< ©', {mode: 'nonAsciiPrintable'});
// -> '< © '
encode('< ©', {mode: 'nonAsciiPrintable', level: 'xml'});
// -> '< © '
```
Options:
#### level
* `all` alias to `html5` (default).
* `html5` uses `HTML5` named references.
* `html4` uses `HTML4` named references.
* `xml` uses `XML` named references.
#### mode
* `specialChars` encodes only HTML special characters (default).
* `nonAscii` encodes HTML special characters and everything outside of the [ASCII character range ](https://en.wikipedia.org/wiki/ASCII ).
* `nonAsciiPrintable` encodes HTML special characters and everything outiside of the [ASCII printable characters ](https://en.wikipedia.org/wiki/ASCII#Printable_characters ).
* `extensive` encodes all non-printable characters, non-ASCII characters and all characters with named references.
#### numeric
* `decimal` uses decimal numbers when encoding html entities. i.e. `©` (default).
* `hexadecimal` uses hexadecimal numbers when encoding html entities. i.e. `©` .
### decode(text, options)
Decodes text replacing entities to characters. Unknown entities are left as is.
```js
import {decode} from 'html-entities';
decode('< > " ' & © ∆ ');
// -> '< > " \' & © ∆'
decode('© ', {level: 'html5'});
// -> '©'
decode('© ', {level: 'xml'});
// -> '© '
```
Options:
#### level
* `all` alias to `html5` (default).
* `html5` uses `HTML5` named references.
* `html4` uses `HTML4` named references.
* `xml` uses `XML` named references.
#### scope
* `body` emulates behavior of browser when parsing tag bodies: entities without semicolon are also replaced (default).
* `attribute` emulates behavior of browser when parsing tag attributes: entities without semicolon are replaced when not followed by equality sign `=` .
* `strict` ignores entities without semicolon.
### decodeEntity(text, options)
Decodes a single HTML entity. Unknown entitiy is left as is.
```js
import {decodeEntity} from 'html-entities';
decodeEntity('< ');
// -> '< '
decodeEntity('© ', {level: 'html5'});
// -> '©'
decodeEntity('© ', {level: 'xml'});
// -> '© '
```
Options:
#### level
* `all` alias to `html5` (default).
* `html5` uses `HTML5` named references.
* `html4` uses `HTML4` named references.
* `xml` uses `XML` named references.
Performance
-----------
Statistically significant comparison with other libraries using `benchmark.js` .
Results by this library are marked with `*` .
The source code of the benchmark is available at `benchmark/benchmark.ts` .
```
Common
Initialization / Load speed
2022-05-12 14:36:59 +00:00
* #1: html-entities x 2,632,942 ops/sec ±3.71% (72 runs sampled)
#2: entities x 1,379,154 ops/sec ±5.87% (75 runs sampled)
#3: he x 1,334,035 ops/sec ±3.14% (83 runs sampled)
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HTML5
Encode test
2022-05-12 14:36:59 +00:00
* #1: html-entities.encode - html5, nonAscii x 415,806 ops/sec ±0.73% (85 runs sampled)
* #2: html-entities.encode - html5, nonAsciiPrintable x 401,420 ops/sec ±0.35% (93 runs sampled)
#3: entities.encodeNonAsciiHTML x 401,235 ops/sec ±0.41% (88 runs sampled)
#4: entities.encodeHTML x 284,868 ops/sec ±0.45% (93 runs sampled)
* #5: html-entities.encode - html5, extensive x 237,613 ops/sec ±0.42% (93 runs sampled)
#6: he.encode x 91,459 ops/sec ±0.50% (84 runs sampled)
2022-01-30 15:04:54 +00:00
Decode test
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#1: entities.decodeHTMLStrict x 614,920 ops/sec ±0.41% (89 runs sampled)
#2: entities.decodeHTML x 577,698 ops/sec ±0.44% (90 runs sampled)
* #3: html-entities.decode - html5, strict x 323,680 ops/sec ±0.39% (92 runs sampled)
* #4: html-entities.decode - html5, body x 297,548 ops/sec ±0.45% (91 runs sampled)
* #5: html-entities.decode - html5, attribute x 293,617 ops/sec ±0.37% (94 runs sampled)
#6: he.decode x 145,383 ops/sec ±0.36% (94 runs sampled)
2022-01-30 15:04:54 +00:00
HTML4
Encode test
2022-05-12 14:36:59 +00:00
* #1: html-entities.encode - html4, nonAscii x 379,799 ops/sec ±0.29% (96 runs sampled)
* #2: html-entities.encode - html4, nonAsciiPrintable x 350,003 ops/sec ±0.42% (92 runs sampled)
* #3: html-entities.encode - html4, extensive x 169,759 ops/sec ±0.43% (90 runs sampled)
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Decode test
2022-05-12 14:36:59 +00:00
* #1: html-entities.decode - html4, attribute x 291,048 ops/sec ±0.42% (92 runs sampled)
* #2: html-entities.decode - html4, strict x 287,110 ops/sec ±0.56% (93 runs sampled)
* #3: html-entities.decode - html4, body x 285,529 ops/sec ±0.57% (93 runs sampled)
2022-01-30 15:04:54 +00:00
XML
Encode test
2022-05-12 14:36:59 +00:00
#1: entities.encodeXML x 418,561 ops/sec ±0.80% (90 runs sampled)
* #2: html-entities.encode - xml, nonAsciiPrintable x 402,868 ops/sec ±0.30% (89 runs sampled)
* #3: html-entities.encode - xml, nonAscii x 403,669 ops/sec ±7.87% (83 runs sampled)
* #4: html-entities.encode - xml, extensive x 237,766 ops/sec ±0.45% (93 runs sampled)
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Decode test
2022-05-12 14:36:59 +00:00
#1: entities.decodeXML x 888,700 ops/sec ±0.48% (93 runs sampled)
* #2: html-entities.decode - xml, strict x 353,127 ops/sec ±0.40% (92 runs sampled)
* #3: html-entities.decode - xml, body x 355,796 ops/sec ±1.58% (86 runs sampled)
* #4: html-entities.decode - xml, attribute x 369,454 ops/sec ±8.74% (84 runs sampled)
2022-01-30 15:04:54 +00:00
Escaping
Escape test
2022-05-12 14:36:59 +00:00
#1: entities.escapeUTF8 x 1,308,013 ops/sec ±0.37% (91 runs sampled)
* #2: html-entities.encode - xml, specialChars x 1,258,760 ops/sec ±1.00% (93 runs sampled)
#3: he.escape x 822,569 ops/sec ±0.24% (94 runs sampled)
#4: entities.escape x 434,243 ops/sec ±0.34% (91 runs sampled)
2022-01-30 15:04:54 +00:00
```
License
-------
MIT
Security contact information
----------------------------
To report a security vulnerability, please use the
[Tidelift security contact ](https://tidelift.com/security ). Tidelift will
coordinate the fix and disclosure.
`html-entities` for enterprise
------------------------------
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