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Patrick Marsceill
2017-03-09 13:16:08 -05:00
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# selector-attribute-operator-space-after
Require a single space or disallow whitespace after operators within attribute selectors.
```css
[target= _blank]
/** ↑
* The space after operator */
```
## Options
`string`: `"always"|"never"`
### `"always"`
There *must always* be a single space after the operator.
The following patterns are considered warnings:
```css
[target=_blank] {}
```
```css
[target =_blank] {}
```
```css
[target='_blank'] {}
```
```css
[target="_blank"] {}
```
```css
[target ='_blank'] {}
```
```css
[target ="_blank"] {}
```
The following patterns are *not* considered warnings:
```css
[target] {}
```
```css
[target= _blank] {}
```
```css
[target= '_blank'] {}
```
```css
[target= "_blank"] {}
```
```css
[target = _blank] {}
```
```css
[target = '_blank'] {}
```
```css
[target = "_blank"] {}
```
### `"never"`
There *must never* be a single space after the operator.
The following patterns are considered warnings:
```css
[target= _blank] {}
```
```css
[target = _blank] {}
```
```css
[target= '_blank'] {}
```
```css
[target= "_blank"] {}
```
```css
[target = '_blank'] {}
```
```css
[target = "_blank"] {}
```
The following patterns are *not* considered warnings:
```css
[target] {}
```
```css
[target=_blank] {}
```
```css
[target='_blank'] {}
```
```css
[target="_blank"] {}
```
```css
[target =_blank] {}
```
```css
[target ='_blank'] {}
```
```css
[target ="_blank"] {}
```

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"use strict"
const ruleMessages = require("../../utils/ruleMessages")
const validateOptions = require("../../utils/validateOptions")
const whitespaceChecker = require("../../utils/whitespaceChecker")
const selectorAttributeOperatorSpaceChecker = require("../selectorAttributeOperatorSpaceChecker")
const ruleName = "selector-attribute-operator-space-after"
const messages = ruleMessages(ruleName, {
expectedAfter: operator => `Expected single space after "${operator}"`,
rejectedAfter: operator => `Unexpected whitespace after "${operator}"`,
})
const rule = function (expectation) {
return (root, result) => {
const checker = whitespaceChecker("space", expectation, messages)
const validOptions = validateOptions(result, ruleName, {
actual: expectation,
possible: [
"always",
"never",
],
})
if (!validOptions) {
return
}
selectorAttributeOperatorSpaceChecker({
root,
result,
locationChecker: checker.after,
checkedRuleName: ruleName,
checkBeforeOperator: false,
})
}
}
rule.ruleName = ruleName
rule.messages = messages
module.exports = rule