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[selectors-4] Replace <an+b> with <an-b> #9552

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[selectors-4] Replace <an+b> with <an-b> #9552

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9416bbc
[selectors-4] Replace <an+b> with <an-b>
cdoublev Nov 2, 2023
5519f39
Apply suggestions from code review
cdoublev Nov 21, 2023
06c3f97
[selectors-4] Restore references of An+B to CSS Syntax
cdoublev Nov 21, 2023
1eb9005
[selectors-4] Wrap references of An+B to CSS Syntax in notes
cdoublev Nov 21, 2023
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38 changes: 17 additions & 21 deletions selectors-4/Overview.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -2949,16 +2949,15 @@ Child-indexed Pseudo-classes</h3>
<h4 id="the-nth-child-pseudo">
'':nth-child()'' pseudo-class</h4>

The <dfn id='nth-child-pseudo' lt=":nth-child()">:nth-child(<var>An+B</var> [of <var>S</var>]? )</dfn>
The <dfn id='nth-child-pseudo' lt=":nth-child()">:nth-child(<<an-b>> [of <<complex-real-selector-list>>]?)</dfn>
pseudo-class notation represents elements that
are among <var>An+B</var>th elements
from the list composed of
their <a>inclusive siblings</a> that match the <a>selector list</a> <var>S</var>,
which is a <<complex-real-selector-list>>.
If <var>S</var> is omitted,
their <a>inclusive siblings</a> that match the <a>selector list</a> <<complex-real-selector-list>>.
If the selector list is omitted,
it defaults to ''*|*''.

The <var>An+B</var> notation and its interpretation
Note: The <var>An+B</var> notation and its interpretation
are defined in [[css-syntax-3#anb-microsyntax]];
it represents any index <var>i</var> = <var>A</var><var>n</var> + <var>B</var>
for any non-negative integer <var>n</var>.
Expand All @@ -2983,11 +2982,11 @@ Child-indexed Pseudo-classes</h3>

Note: The specificity of the '':nth-child()'' pseudo-class is
the specificity of a single pseudo-class plus,
if <var>S</var> is specified,
if the selector list <var>S</var> is specified,
the specificity of the most specific <a>complex selector</a> in <var>S</var>.
See [[#specificity-rules]].
Thus ''<var>S</var>:nth-child(<var>An+B</var>)''
and '':nth-child(<var>An+B</var> of <var>S</var>)''
Thus ''<var>S</var>:nth-child(<<an-b>>)''
and '':nth-child(<<an-b>> of <var>S</var>)''
have the exact same specificity,
although they do differ in behavior
(see example below).
Expand Down Expand Up @@ -3045,14 +3044,13 @@ Child-indexed Pseudo-classes</h3>
<h4 id="the-nth-last-child-pseudo">
'':nth-last-child()'' pseudo-class</h4>

The <dfn id='nth-last-child-pseudo' lt=":nth-last-child()">:nth-last-child(<var>An+B</var> [of <var>S</var>]? )</dfn>
The <dfn id='nth-last-child-pseudo' lt=":nth-last-child()">:nth-last-child(<<an-b>> [of <<complex-real-selector-list>>]?)</dfn>
pseudo-class notation represents elements that
are among <var>An+B</var>th elements
from the list composed of
their <a>inclusive siblings</a> that match the <a>selector list</a> <var>S</var>,
their <a>inclusive siblings</a> that match the <a>selector list</a> <<complex-real-selector-list>>,
counting backwards from the end.
<var>S</var> is <<complex-real-selector-list>>.
If <var>S</var> is omitted,
If the selector list is omitted,
it defaults to ''*|*''.

Note: The specificity of the '':nth-last-child()'' pseudo-class,
Expand All @@ -3061,7 +3059,7 @@ Child-indexed Pseudo-classes</h3>
with that of its selector argument <var>S</var>.
See [[#specificity-rules]].

The CSS Syntax Module [[!CSS3SYN]] defines the <a href="https://drafts.csswg.org/css-syntax/#anb"><var>An+B</var> notation</a>.
Note: The CSS Syntax Module [[!CSS3SYN]] defines the <a href="https://drafts.csswg.org/css-syntax/#anb"><var>An+B</var> notation</a>.

<div class="example">
Examples:
Expand Down Expand Up @@ -3150,7 +3148,7 @@ Typed Child-indexed Pseudo-classes</h3>
<h4 id="the-nth-of-type-pseudo">
'':nth-of-type()'' pseudo-class</h4>

The <dfn id='nth-of-type-pseudo' lt=":nth-of-type()">:nth-of-type(<var>An+B</var>)</dfn> pseudo-class notation
The <dfn id='nth-of-type-pseudo' lt=":nth-of-type()">:nth-of-type(<<an-b>>)</dfn> pseudo-class notation
represents the same elements that would be matched by '':nth-child(|An+B| of |S|)'',
where |S| is a [=type selector=] and namespace prefix matching the element in question.
For example,
Expand All @@ -3177,7 +3175,7 @@ Typed Child-indexed Pseudo-classes</h3>
<h4 id="the-nth-last-of-type-pseudo">
'':nth-last-of-type()'' pseudo-class</h4>

The <dfn id='nth-last-of-type-pseudo' lt=":nth-last-of-type()">:nth-last-of-type(<var>An+B</var>)</dfn> pseudo-class notation
The <dfn id='nth-last-of-type-pseudo' lt=":nth-last-of-type()">:nth-last-of-type(<<an-b>>)</dfn> pseudo-class notation
represents the same elements that would be matched by '':nth-last-child(|An+B| of |S|)'',
where |S| is a [=type selector=] and namespace prefix matching the element in question.
For example,
Expand Down Expand Up @@ -3438,7 +3436,7 @@ Column combinator (<code>||</code>)</h3>
<h3 id="the-nth-col-pseudo">
'':nth-col()'' pseudo-class</h3>

The <dfn id='nth-col-pseudo' lt=":nth-col()">:nth-col(<var>An+B</var>)</dfn>
The <dfn id='nth-col-pseudo' lt=":nth-col()">:nth-col(<<an-b>>)</dfn>
pseudo-class notation represents a cell element belonging to a column
that has <var>An+B</var>-1 columns
<strong>before</strong> it, for any positive
Expand All @@ -3448,14 +3446,12 @@ Column combinator (<code>||</code>)</h3>
more than one column, it is represented by a selector indicating any of
those columns.

The CSS Syntax Module [[!CSS3SYN]] defines the <a href="https://drafts.csswg.org/css-syntax/#anb"><var>An+B</var> notation</a>.


Note: The CSS Syntax Module [[!CSS3SYN]] defines the <a href="https://drafts.csswg.org/css-syntax/#anb"><var>An+B</var> notation</a>.

<h3 id="the-nth-last-col-pseudo">
'':nth-last-col()'' pseudo-class</h3>

The <dfn id='nth-last-col-pseudo' lt=":nth-last-col()">:nth-last-col(<var>An+B</var>)</dfn>
The <dfn id='nth-last-col-pseudo' lt=":nth-last-col()">:nth-last-col(<<an-b>>)</dfn>
pseudo-class notation represents a cell element belonging to a column
that has <var>An+B</var>-1 columns
<strong>after</strong> it, for any positive
Expand All @@ -3465,7 +3461,7 @@ Column combinator (<code>||</code>)</h3>
more than one column, it is represented by a selector indicating any of
those columns.

The CSS Syntax Module [[!CSS3SYN]] defines the <a href="https://drafts.csswg.org/css-syntax/#anb"><var>An+B</var> notation</a>.
Note: The CSS Syntax Module [[!CSS3SYN]] defines the <a href="https://drafts.csswg.org/css-syntax/#anb"><var>An+B</var> notation</a>.

<h2 id="specificity-rules">
Calculating a selector's specificity</h2>
Expand Down