[LyX/master] XHTML: remove <section> support.

[Thibaut Cuvelier]

commit 92ad86daccfcdf9ae2ebfa084c38b2712d0cc8c3
Author: Thibaut Cuvelier <tcuvelier at lyx.org>
Date:   Wed Sep 16 03:18:32 2020 +0200

    XHTML: remove <section> support.
---
 src/output_xhtml.cpp |   37 -------------------------------------
 1 files changed, 0 insertions(+), 37 deletions(-)

diff --git a/src/output_xhtml.cpp b/src/output_xhtml.cpp
index f8cd53e..99d425e 100644
--- a/src/output_xhtml.cpp
+++ b/src/output_xhtml.cpp
@@ -590,7 +590,6 @@ void xhtmlParagraphs(Text const & text,
 	ParagraphList::const_iterator const pend =
 		(epit == (int) paragraphs.size()) ?
 			paragraphs.end() : paragraphs.iterator_at(epit);
-	std::stack<int> headerLevels;
 
 	while (bpit < epit) {
 		ParagraphList::const_iterator par = paragraphs.iterator_at(bpit);
@@ -609,33 +608,6 @@ void xhtmlParagraphs(Text const & text,
 		ParagraphList::const_iterator const lastpar = par;
 		ParagraphList::const_iterator send;
 
-		// Think about adding <section> and/or </section>s.
-		if (style.category() == from_utf8("Sectioning")) {
-			int level = style.toclevel;
-
-			// Need to close a previous section if it has the same level or a higher one (close <section> if opening a
-			// <h2> after a <h2>, <h3>, <h4>, <h5> or <h6>). More examples:
-			//   - current: h2; back: h1; do not close any <section>
-			//   - current: h1; back: h2; close two <section> (first the <h2>, then the <h1>, so a new <h1> can come)
-			while (!headerLevels.empty() && level <= headerLevels.top()) {
-				// Output the tag only if it corresponds to a legit section.
-				int stackLevel = headerLevels.top();
-				if (stackLevel != Layout::NOT_IN_TOC && level > 1) { // <h1> is the document title.
-					xs << xml::EndTag("section");
-					xs << xml::CR();
-				}
-				headerLevels.pop();
-			}
-
-			// Open the new section: first push it onto the stack, then output it in XHTML.
-			headerLevels.push(level);
-			// Some sectioning-like elements should not be output (such as FrontMatter).
-			if (level != Layout::NOT_IN_TOC && level > 1) { // <h1> is the document title.
-				xs << xml::StartTag("section");
-				xs << xml::CR();
-			}
-		}
-
 		switch (style.latextype) {
 		case LATEX_COMMAND: {
 			// The files with which we are working never have more than
@@ -672,15 +644,6 @@ void xhtmlParagraphs(Text const & text,
 		}
 		bpit += distance(lastpar, par);
 	}
-
-	// If need be, close <section>s, but only at the end of the document (otherwise, dealt with at the beginning
-	// of the loop).
-	while (!headerLevels.empty() && headerLevels.top() > Layout::NOT_IN_TOC) {
-		docstring tag = from_utf8("</section>");
-		headerLevels.pop();
-		xs << XMLStream::ESCAPE_NONE << tag;
-		xs << xml::CR();
-	}
 }