tools: remove redundant code in doc/html.js

This PR reduces code by 40 lines and docs size by ~7.5 KB. Only
<div class="signature">...</div> wrappers are removed from docs,
no other changes are found in results.
PR-URL: #20514
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

Author: vsemozhetbyt

test/doctool/test-doctool-html.js

@@ -29,11 +29,11 @@ const testData = [
 file: fixtures.path('order_of_end_tags_5873.md'),
 html: '<h3>ClassMethod: Buffer.from(array) <span> '+
 '<a class="mark" href="#foo_class_method_buffer_from_array" '+
-'id="foo_class_method_buffer_from_array">#</a> </span> </h3><div'+
-'class="signature"><ul><li><code>array</code><a '+
+'id="foo_class_method_buffer_from_array">#</a> </span> </h3>'+
+'<ul><li><code>array</code><a '+
 'href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/'+
 'Reference/Global_Objects/Array" class="type">&lt;Array&gt;</a></li>'+
-'</ul></div>'
+'</ul>'
 },
 {
 file: fixtures.path('doc_with_yaml.md'),

tools/doc/html.js

@@ -93,7 +93,7 @@ function render(opts, cb) {
 filename=path.basename(filename,'.md');
 
 parseText(lexed);
-lexed=parseLists(lexed);
+lexed=preprocessElements(lexed);
 
 // Generate the table of contents.
 // This mutates the lexed contents in-place.
@@ -231,25 +231,28 @@ function parseText(lexed) {
 });
 }
 
-// Just update the list item text in-place.
-// Lists that come right after a heading are what we're after.
-functionparseLists(input){
+// Preprocess stability blockquotes and YAML blocks.
+functionpreprocessElements(input){
 varstate=null;
-constsavedState=[];
-vardepth=0;
 constoutput=[];
 letheadingIndex=-1;
 letheading=null;
 
 output.links=input.links;
 input.forEach(function(tok,index){
+if(tok.type==='heading'){
+headingIndex=index;
+heading=tok;
+}
+if(tok.type==='html'&&common.isYAMLBlock(tok.text)){
+tok.text=parseYAML(tok.text);
+}
 if(tok.type==='blockquote_start'){
-savedState.push(state);
 state='MAYBE_STABILITY_BQ';
 return;
 }
 if(tok.type==='blockquote_end'&&state==='MAYBE_STABILITY_BQ'){
-state=savedState.pop();
+state=null;
 return;
 }
 if((tok.type==='paragraph'&&state==='MAYBE_STABILITY_BQ')||
@@ -271,50 +274,7 @@ function parseLists(input) {
 return;
 }elseif(state==='MAYBE_STABILITY_BQ'){
 output.push({type: 'blockquote_start'});
-state=savedState.pop();
-}
-}
-if(state===null||
-(state==='AFTERHEADING'&&tok.type==='heading')){
-if(tok.type==='heading'){
-headingIndex=index;
-heading=tok;
-state='AFTERHEADING';
-}
-output.push(tok);
-return;
-}
-if(state==='AFTERHEADING'){
-if(tok.type==='list_start'){
-state='LIST';
-if(depth===0){
-output.push({type: 'html',text: '<div class="signature">'});
-}
-depth++;
-output.push(tok);
-return;
-}
-if(tok.type==='html'&&common.isYAMLBlock(tok.text)){
-tok.text=parseYAML(tok.text);
-}
-state=null;
-output.push(tok);
-return;
-}
-if(state==='LIST'){
-if(tok.type==='list_start'){
-depth++;
-output.push(tok);
-return;
-}
-if(tok.type==='list_end'){
-depth--;
-output.push(tok);
-if(depth===0){
-state=null;
-output.push({type: 'html',text: '</div>'});
-}
-return;
+state=null;
 }
 }
 output.push(tok);