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+# selector-nest-combinators
+
+Require or disallow nesting of combinators in selectors
+
+```scss
+/* Examples of selectors without nesting of combinators */
+.foo .bar {}
+
+.foo.bar {}
+
+.foo > .bar {}
+
+.foo:hover {}
+
+/* Corresponding selectors with combinators nested */
+.foo {
+ .bar {}
+}
+
+.foo {
+ &.bar {}
+}
+
+.foo {
+ & > .bar {}
+}
+
+.foo {
+ &:hover {}
+}
+```
+
+## Options
+
+`string`: `"always"|"never"`
+
+### `"always"`
+
+*Every combinator* in a selector *must be* nested where possible without altering the existing resolved selector.
+
+Sections of selectors preceding a parent selector are ignored with `always`.
+e.g.
+
+```scss
+.foo {
+ .bar.baz & {}
+}
+```
+
+Sections of selectors within pseudo selectors are also ignored with `always`.
+e.g.
+
+```scss
+.foo {
+ &:not(.bar .baz) {}
+}
+```
+
+while this could be refactored to:
+
+```scss
+.bar {
+ .baz {
+ .foo:not(&) {}
+ }
+}
+```
+
+There are variances in the way this is compiled between compilers, therefore for the purposes of this rule the selector sections within pseudo selectors are being ignored.
+
+The following patterns are considered warnings:
+
+```scss
+.foo .bar {}
+```
+
+```scss
+.foo.bar {}
+```
+
+```scss
+.foo > .bar {}
+```
+
+```scss
+.foo:hover {}
+```
+
+```scss
+a[href] {}
+```
+
+```scss
+* + li {}
+```
+
+```scss
+:nth-child(2n - 1):last-child {}
+```
+
+The following patterns are *not* considered warnings:
+
+```scss
+.foo {
+ .bar {}
+}
+```
+
+```scss
+.foo {
+ &.bar {}
+}
+```
+
+```scss
+.foo {
+ & > .bar {}
+}
+```
+
+```scss
+.foo {
+ &:hover {}
+}
+```
+
+```scss
+a {
+ &[href] {}
+}
+```
+
+```scss
+* {
+ & + li {}
+}
+```
+
+```scss
+:nth-child(2n - 1) {
+ &:last-child {}
+}
+```
+
+### `"never"`
+
+Nested of selectors are not allowed.
+
+The following patterns are considered warnings:
+
+```scss
+.foo {
+ .bar {}
+}
+```
+
+```scss
+.foo {
+ &.bar {}
+}
+```
+
+```scss
+.foo {
+ & > .bar {}
+}
+```
+
+```scss
+.foo {
+ &:hover {}
+}
+```
+
+```scss
+a {
+ &[href] {}
+}
+```
+
+```scss
+* {
+ & + li {}
+}
+```
+
+```scss
+:nth-child(2n - 1) {
+ &:last-child {}
+}
+```
+
+The following patterns are *not* considered warnings:
+
+```scss
+.foo .bar {}
+```
+
+```scss
+.foo.bar {}
+```
+
+```scss
+.foo > .bar {}
+```
+
+```scss
+.foo:hover {}
+```
+
+```scss
+a[href] {}
+```
+
+```scss
+* + li {}
+```
+
+```scss
+:nth-child(2n - 1):last-child {}
+```