[css-navigation-1][editorial] Revert most of 7c97044

This reverts almost all of 7c97044,
since the whitespace changes it made (replacing spaces by tabs)
substantively changed the formatting of grammar and source code
sections, and the errors that it fixing should not be errors and should
be avoided some other way.

The only part of the change that is retained is the addition of privacy
and security considerations sections, though the contents of those
sections are now an issue that the section should be written rather than
a statement about lack of issues reported.

Author: dbaron

css-navigation-1/Overview.bs

@@ -10,7 +10,7 @@ ED: https://drafts.csswg.org/css-navigation-1/
 Editor: L. David Baron, Google https://www.google.com/, https://dbaron.org/, w3cid 15393
 Editor: Noam Rosenthal, Google https://www.google.com/, w3cid 121539
 Abstract: This module contains conditional CSS rules for styling conditioned on the current URL
-	or conditioned on the status of navigating between particular URLs.
+        or conditioned on the status of navigating between particular URLs.
 </pre>
 
 <pre class="link-defaults">
@@ -46,7 +46,7 @@ The syntax of the ''@route'' rule is:
 
 <pre class="prod def" nohighlight>
 @route <<dashed-ident>> {
-	[ <<pattern-descriptors>> | <<init-descriptors>> ]
+  [ <<pattern-descriptors>> | <<init-descriptors>> ]
 }
 </pre>
 
@@ -57,7 +57,8 @@ based on the following definitions:
 <dfn><<pattern-descriptor>></dfn> = pattern : <<url-pattern()>>
 <dfn><<init-descriptors>></dfn> = ;* <<init-descriptor>> [ ;+ <<init-descriptor>> ]* ;*
 <dfn><<init-descriptor>></dfn> = <<init-descriptor-name>> : <<string>>
-<dfn><<init-descriptor-name>></dfn> = protocol | hostname | port | pathname | search | hash | base-url
+<dfn><<init-descriptor-name>></dfn> = protocol | hostname | port | pathname |
+                         search | hash | base-url
 </pre>
 
 This associates an author-defined keyword with a URL pattern,
@@ -107,13 +108,13 @@ but it could also be added back later if we need it.
 Either this rule:
 <pre highlight=css>
 @route --movie-list {
-	pattern: url-pattern("/movie-list");
+  pattern: url-pattern("/movie-list");
 }
 </pre>
 or this rule:
 <pre highlight=css>
 @route --movie-list {
-	pathname: "/movie-list";
+  pathname: "/movie-list";
 }
 </pre>
 define an ''@route'' rule that associates
@@ -162,8 +163,8 @@ to define styles that only affect a particular page:
 
 <pre highlight="css">
 @navigation (at: url-pattern("/")) {
-	/* These styles only apply to the site's homepage
-	   (including any URL with a search or hash). */
+  /* These styles only apply to the site's homepage
+     (including any URL with a search or hash). */
 }
 </pre>
 
@@ -178,20 +179,20 @@ styles that cause [=view transitions=].
 
 <pre highlight="css">
 @route --search-results-page {
-	pattern: url-pattern("/search-results");
+  pattern: url-pattern("/search-results");
 }
 @route --product-page {
-	pattern: url-pattern("/product/:id");
+  pattern: url-pattern("/product/:id");
 }
 
 @navigation ((from: --search-results-page) and
-	(to: --product-page)) or
-	((from: --product-page) and
-	(to: --search-results-page)) {
-	/* These styles apply when a navigation is in progress
-	   between a search results page and a product page (as
-	   defined by the @route rules above), in either
-	   direction. */
+             (to: --product-page)) or
+            ((from: --product-page) and
+             (to: --search-results-page)) {
+  /* These styles apply when a navigation is in progress
+     between a search results page and a product page (as
+     defined by the @route rules above), in either
+     direction. */
 }
 </pre>
 
@@ -209,8 +210,8 @@ with <<navigation-condition>> defined as:
 
 <pre class="prod def" dfn-type="type" nohighlight>
 <dfn><<navigation-condition>></dfn> = not <<navigation-in-parens>>
-	| <<navigation-in-parens>> [ and <<navigation-in-parens>> ]*
-	| <<navigation-in-parens>> [ or <<navigation-in-parens>> ]*
+                     | <<navigation-in-parens>> [ and <<navigation-in-parens>> ]*
+                     | <<navigation-in-parens>> [ or <<navigation-in-parens>> ]*
 <dfn><<navigation-in-parens>></dfn> = ( <<navigation-condition>> ) | ( <<navigation-test>> ) | <<general-enclosed>>
 <dfn><<navigation-test>></dfn> = <<navigation-location-test>> | <<navigation-type-test>>
 
@@ -367,7 +368,7 @@ which matches any links that link to the site's homepage:
 
 <pre highlight=css>
 :link-to(url-pattern("/")) {
-	font-weight: bold;
+  font-weight: bold;
 }
 </pre>
 
@@ -388,46 +389,46 @@ by matching the relevant parts of the navigation URL to the link URL.
 
 <pre highlight=css>
 @view-transition {
-	/* allow cross-document view transitions */
-	navigation: auto;
+  /* allow cross-document view transitions */
+  navigation: auto;
 }
 
 @route --movie-details {
-	/* match URLs like /en/movie/123 which is the English page
-	   about a movie with ID 123 */
-	pattern: url-pattern("/:lang/movie/:id");
+  /* match URLs like /en/movie/123 which is the English page
+     about a movie with ID 123 */
+  pattern: url-pattern("/:lang/movie/:id");
 }
 
 /* capture the overall area representing the movie, and a
-	sub-area for its poster image */
+   sub-area for its poster image */
 
 /* match an element with class movie-container with a child
-	link that links to a movie whose id is the same as the
-	movie we are currently navigating to or from.  (lang can
-	be different, though.)
-
-	Just :link-to(--movie-details) requires that the target
-	of the link match the URL pattern defined by the "@route
-	--movie-details" rule.
-
-	The navigation-param(id) further requires that either the
-	from or the to URL of the current navigation also match
-	the URL pattern represented by the "@route
-	--movie-details" rule, and that that the 'id' named group
-	from that match be the same as the 'id' named group from
-	the match with the link's target.
-	*/
+   link that links to a movie whose id is the same as the
+   movie we are currently navigating to or from.  (lang can
+   be different, though.)
+
+   Just :link-to(--movie-details) requires that the target
+   of the link match the URL pattern defined by the "@route
+   --movie-details" rule.
+
+   The navigation-param(id) further requires that either the
+   from or the to URL of the current navigation also match
+   the URL pattern represented by the "@route
+   --movie-details" rule, and that that the 'id' named group
+   from that match be the same as the 'id' named group from
+   the match with the link's target.
+   */
 .movie-container:has(> .movie-title:link-to(
-	--movie-details with navigation-param(id))) {
+  --movie-details with navigation-param(id))) {
 
-	view-transition-name: movie-container;
+  view-transition-name: movie-container;
 
-	> .movie-poster {
-		view-transition-name: movie-poster;
-	}
+  > .movie-poster {
+    view-transition-name: movie-poster;
+  }
 
-	/* leave the default cross-fade animation for both image
-	   captures */
+  /* leave the default cross-fade animation for both image
+     captures */
 }
 </pre>
 
@@ -442,12 +443,12 @@ and the pseudo-class matches any element where:
 <dfn><<link-condition>></dfn> = <<link-condition-base>> [ with <<navigation-param-expression>> ]?
 <dfn><<link-condition-base>></dfn> = <<navigation-location>>
 <dfn><<navigation-param-expression>></dfn> = ( <<navigation-param-and>> ) |
-	( <<navigation-param-or>> ) |
-	<<navigation-param>>
+                                ( <<navigation-param-or>> ) |
+                                <<navigation-param>>
 <dfn><<navigation-param-and>></dfn> = <<navigation-param-expression>>
-	[ "and" <<navigation-param-expression>> ]*
+                         [ "and" <<navigation-param-expression>> ]*
 <dfn><<navigation-param-or>></dfn> = <<navigation-param-expression>>
-	[ "or" <<navigation-param-expression>> ]*
+                        [ "or" <<navigation-param-expression>> ]*
 <dfn><<navigation-param>></dfn> = <<navigation-param-key-value>> | <<navigation-param-function>>
 <dfn><<navigation-param-key-value>></dfn> = ( <<ident>> : <<string>> )
 <dfn><<navigation-param-function>></dfn> = navigation-param( <<ident>> )
@@ -744,8 +745,8 @@ intentionally does not provide a serialization.
 
 <h2 class="no-num" id="privacy">Privacy Considerations</h2>
 
-No new privacy considerations have been reported on this specification.
+ISSUE: To be written.
 
 <h2 class="no-num" id="security">Security Considerations</h2>
 
-No new security considerations have been reported on this specification.
+ISSUE: To be written.