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This commit is contained in:
Patrick Marsceill
2017-03-09 13:16:08 -05:00
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# declaration-colon-space-after
Require a single space or disallow whitespace after the colon of declarations.
```css
a { color: pink }
/** ↑
* The space after this colon */
```
## Options
`string`: `"always"|"never"|"always-single-line"`
### `"always"`
There *must always* be a single space after the colon.
The following patterns are considered warnings:
```css
a { color :pink }
```
```css
a { color:pink }
```
The following patterns are *not* considered warnings:
```css
a { color : pink }
```
```css
a { color: pink }
```
### `"never"`
There *must never* be whitespace after the colon.
The following patterns are considered warnings:
```css
a { color:pink }
```
```css
a { color :pink }
```
The following patterns are *not* considered warnings:
```css
a { color :pink }
```
```css
a { color:pink }
```
### `"always-single-line"`
There *must always* be a single space after the colon *if the declaration's value is single-line*.
The following patterns are considered warnings:
```css
a {
box-shadow:0 0 0 1px #5b9dd9, 0 0 2px 1px rgba(30, 140, 190, 0.8);
}
```
The following patterns are *not* considered warnings:
```css
a {
box-shadow: 0 0 0 1px #5b9dd9, 0 0 2px 1px rgba(30, 140, 190, 0.8);
}
```
```css
a {
box-shadow:
0 0 0 1px #5b9dd9,
0 0 2px 1px rgba(30, 140, 190, 0.8);
}
```
```css
a {
box-shadow:0 0 0 1px #5b9dd9,
0 0 2px 1px rgba(30, 140, 190, 0.8);
}
```

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"use strict"
const ruleMessages = require("../../utils/ruleMessages")
const validateOptions = require("../../utils/validateOptions")
const whitespaceChecker = require("../../utils/whitespaceChecker")
const declarationColonSpaceChecker = require("../declarationColonSpaceChecker")
const ruleName = "declaration-colon-space-after"
const messages = ruleMessages(ruleName, {
expectedAfter: () => "Expected single space after \":\"",
rejectedAfter: () => "Unexpected whitespace after \":\"",
expectedAfterSingleLine: () => "Expected single space after \":\" with a single-line declaration",
})
const rule = function (expectation) {
const checker = whitespaceChecker("space", expectation, messages)
return (root, result) => {
const validOptions = validateOptions(result, ruleName, {
actual: expectation,
possible: [
"always",
"never",
"always-single-line",
],
})
if (!validOptions) {
return
}
declarationColonSpaceChecker({
root,
result,
locationChecker: checker.after,
checkedRuleName: ruleName,
})
}
}
rule.ruleName = ruleName
rule.messages = messages
module.exports = rule