[css-syntax] Add 'case sensitive' definition.

Author: tabatkins

css-syntax/Overview.bs

@@ -2052,15 +2052,20 @@ Definitions</h3>
 			instead do nothing
 			(retain the <a>current input token</a> unchanged).
 
-		<dt><dfn export>ASCII case-insensitive</dfn>
+		<dt><dfn export title="case-sensitive|case-sensitively">case-sensitive</dfn>
+		<dd>
+			When two strings are to be matched case-sensitively,
+			this means they must be identical <a>code point</a> for code point.
+
+		<dt><dfn export title="ASCII case-insensitive|ASCII case-insensitively">ASCII case-insensitive</dfn>
 		<dd>
 			When two strings are to be matched ASCII case-insensitively,
 			temporarily convert both of them to ASCII lower-case form
 			by adding 32 (0x20) to the value of each <a>code point</a> between
 			U+0041 LATIN CAPITAL LETTER A (A)
 			and U+005A LATIN CAPITAL LETTER Z (Z),
 			inclusive,
-			and check if this results in identical sequences of <a>code points</a>.
+			and check if they are a <a>case-sensitive</a> match.
 	</dl>
 
 

css-syntax/Overview.html

@@ -3625,15 +3625,20 @@ <h3 class="heading settled heading" data-level=5.2 id=parser-definitions><span c
 			instead do nothing
 			(retain the <a data-link-type=dfn href=#current-input-token title="current input token">current input token</a> unchanged).
 
-		<dt><dfn data-dfn-type=dfn data-export="" id=ascii-case-insensitive>ASCII case-insensitive<a class=self-link href=#ascii-case-insensitive></a></dfn>
+		<dt><dfn data-dfn-type=dfn data-export="" id=case-sensitive title=case-sensitive|case-sensitively>case-sensitive<a class=self-link href=#case-sensitive></a></dfn>
+		<dd>
+			When two strings are to be matched case-sensitively,
+			this means they must be identical <a data-link-type=dfn href=#code-point title="code point">code point</a> for code point.
+
+		<dt><dfn data-dfn-type=dfn data-export="" id=ascii-case-insensitive title="ASCII case-insensitive|ASCII case-insensitively">ASCII case-insensitive<a class=self-link href=#ascii-case-insensitive></a></dfn>
 		<dd>
 			When two strings are to be matched ASCII case-insensitively,
 			temporarily convert both of them to ASCII lower-case form
 			by adding 32 (0x20) to the value of each <a data-link-type=dfn href=#code-point title="code point">code point</a> between
 			U+0041 LATIN CAPITAL LETTER A (A)
 			and U+005A LATIN CAPITAL LETTER Z (Z),
 			inclusive,
-			and check if this results in identical sequences of <a data-link-type=dfn href=#code-point title="code points">code points</a>.
+			and check if they are a <a data-link-type=dfn href=#case-sensitive title=case-sensitive>case-sensitive</a> match.
 	</dl>
 
 
@@ -5179,11 +5184,14 @@ <h2 class="no-num no-ref heading settled heading" id=index><span class=content>
 <li>&lt;an+b&gt;, <a href=#anb-production title="section 6.2">6.2</a>
 <li>are a valid escape, <a href=#check-if-two-code-points-are-a-valid-escape title="section 4.3.9">4.3.9</a>
 <li>ASCII case-insensitive, <a href=#ascii-case-insensitive title="section 5.2">5.2</a>
+<li>ASCII case-insensitively, <a href=#ascii-case-insensitive title="section 5.2">5.2</a>
 <li>&lt;at-keyword-token&gt;, <a href=#typedef-at-keyword-token title="section 4">4</a>
 <li>at-rule, <a href=#at-rule title="section 5">5</a>
 <li>B, <a href=#b title="section 6">6</a>
 <li>&lt;bad-string-token&gt;, <a href=#typedef-bad-string-token title="section 4">4</a>
 <li>&lt;bad-url-token&gt;, <a href=#typedef-bad-url-token title="section 4">4</a>
+<li>case-sensitive, <a href=#case-sensitive title="section 5.2">5.2</a>
+<li>case-sensitively, <a href=#case-sensitive title="section 5.2">5.2</a>
 <li>&lt;CDC-token&gt;, <a href=#typedef-cdc-token title="section 4">4</a>
 <li>&lt;CDO-token&gt;, <a href=#typedef-cdo-token title="section 4">4</a>
 <li>@charset, <a href=#at-ruledef-charset title="section 8.2">8.2</a>