🎨 Improve processing when copying and pasting plain text contains esc…

…ape char siyuan-note/siyuan#9727

parse/transform.go

@@ -27,6 +27,27 @@ func NestedInlines2FlattedSpansHybrid(tree *Tree, isExportMd bool) {
 		}
 
 		if ast.NodeLink == n.Type {
+			var unlinkBackslashes []*ast.Node
+			ast.Walk(n, func(c *ast.Node, entering bool) ast.WalkStatus {
+				if !entering {
+					return ast.WalkContinue
+				}
+
+				if ast.NodeBackslash == c.Type {
+					cont := c.ChildByType(ast.NodeBackslashContent)
+					if nil != cont {
+						linkText := &ast.Node{Type: ast.NodeLinkText, Tokens: cont.Tokens}
+						c.InsertBefore(linkText)
+					}
+
+					unlinkBackslashes = append(unlinkBackslashes, c)
+				}
+				return ast.WalkContinue
+			})
+			for _, backslash := range unlinkBackslashes {
+				backslash.Unlink()
+			}
+
 			// 超链接嵌套图片情况下，图片子节点移到超链接节点前面
 			img := n.ChildByType(ast.NodeImage)
 			if nil == img {
@@ -79,7 +100,7 @@ func NestedInlines2FlattedSpansHybrid(tree *Tree, isExportMd bool) {
 			processNestedNode(n, "a", &tags, &unlinks, entering)
 		case ast.NodeBlockRef:
 			processNestedNode(n, "block-ref", &tags, &unlinks, entering)
-		case ast.NodeText, ast.NodeCodeSpanContent, ast.NodeInlineMathContent, ast.NodeLinkText, ast.NodeBlockRefID, ast.NodeHTMLEntity:
+		case ast.NodeText, ast.NodeCodeSpanContent, ast.NodeInlineMathContent, ast.NodeLinkText, ast.NodeBlockRefID, ast.NodeHTMLEntity, ast.NodeBackslash:
 			if 1 > len(tags) {
 				return ast.WalkContinue
 			}

protyle.go

@@ -127,7 +127,7 @@ func (lute *Lute) BlockDOM2InlineBlockDOM(vHTML string) (vIHTML string) {
 
 func (lute *Lute) Md2BlockDOM(markdown string, reserveEmptyParagraph bool) (vHTML string) {
 	tree := parse.Parse("", []byte(markdown), lute.ParseOptions)
-	parse.NestedInlines2FlattedSpans(tree, false)
+	parse.NestedInlines2FlattedSpansHybrid(tree, false)
 	if reserveEmptyParagraph {
 		ast.Walk(tree.Root, func(n *ast.Node, entering bool) ast.WalkStatus {
 			if !entering {
@@ -156,7 +156,7 @@ func (lute *Lute) Md2BlockDOM(markdown string, reserveEmptyParagraph bool) (vHTM
 
 func (lute *Lute) InlineMd2BlockDOM(markdown string) (vHTML string) {
 	tree := parse.Inline("", []byte(markdown), lute.ParseOptions)
-	parse.NestedInlines2FlattedSpans(tree, false)
+	parse.NestedInlines2FlattedSpansHybrid(tree, false)
 	renderer := render.NewProtyleRenderer(tree, lute.RenderOptions)
 	for nodeType, rendererFunc := range lute.Md2BlockDOMRendererFuncs {
 		renderer.ExtRendererFuncs[nodeType] = rendererFunc

test/m2p_test.go

@@ -19,6 +19,7 @@ import (
 
 var md2BlockDOMTests = []parseTest{
 
+	{"77", "\\*foo\\*", "<div data-node-id=\"20060102150405-1a2b3c4\" data-node-index=\"1\" data-type=\"NodeParagraph\" class=\"p\" updated=\"20060102150405\"><div contenteditable=\"true\" spellcheck=\"false\"><span data-type=\"backslash\"><span>\\</span>*</span>foo<span data-type=\"backslash\"><span>\\</span>*</span></div><div class=\"protyle-attr\" contenteditable=\"false\">\u200b</div></div>"},
 	{"76", "| `foo\\\\\\|bar` |\n| - |", "<div data-node-id=\"20060102150405-1a2b3c4\" data-node-index=\"1\" data-type=\"NodeTable\" class=\"table\" updated=\"20060102150405\"><div contenteditable=\"false\"><table contenteditable=\"true\" spellcheck=\"false\"><colgroup><col /></colgroup><thead><tr><th>\u200b<span data-type=\"code\">\u200bfoo\\\\&#124;bar</span>\u200b</th></tr></thead><tbody></tbody></table><div class=\"protyle-action__table\"><div class=\"table__resize\"></div><div class=\"table__select\"></div></div></div><div class=\"protyle-attr\" contenteditable=\"false\">\u200b</div></div>"},
 	{"75", "| `foo\\\\|bar` |\n| - |", "<div data-node-id=\"20060102150405-1a2b3c4\" data-node-index=\"1\" data-type=\"NodeTable\" class=\"table\" updated=\"20060102150405\"><div contenteditable=\"false\"><table contenteditable=\"true\" spellcheck=\"false\"><colgroup><col /></colgroup><thead><tr><th>\u200b<span data-type=\"code\">\u200bfoo\\&#124;bar</span>\u200b</th></tr></thead><tbody></tbody></table><div class=\"protyle-action__table\"><div class=\"table__resize\"></div><div class=\"table__select\"></div></div></div><div class=\"protyle-attr\" contenteditable=\"false\">\u200b</div></div>"},
 	{"74", "| `foo\\|bar` |\n| - |", "<div data-node-id=\"20060102150405-1a2b3c4\" data-node-index=\"1\" data-type=\"NodeTable\" class=\"table\" updated=\"20060102150405\"><div contenteditable=\"false\"><table contenteditable=\"true\" spellcheck=\"false\"><colgroup><col /></colgroup><thead><tr><th>\u200b<span data-type=\"code\">\u200bfoo&#124;bar</span>\u200b</th></tr></thead><tbody></tbody></table><div class=\"protyle-action__table\"><div class=\"table__resize\"></div><div class=\"table__select\"></div></div></div><div class=\"protyle-attr\" contenteditable=\"false\">\u200b</div></div>"},
@@ -42,7 +43,7 @@ var md2BlockDOMTests = []parseTest{
 	{"56", "foo&lt;bar&gt;baz", "<div data-node-id=\"20060102150405-1a2b3c4\" data-node-index=\"1\" data-type=\"NodeParagraph\" class=\"p\" updated=\"20060102150405\"><div contenteditable=\"true\" spellcheck=\"false\">foo&lt;bar&gt;baz</div><div class=\"protyle-attr\" contenteditable=\"false\">\u200b</div></div>"},
 	{"55", "foo\n{: style=\"color: green\"}\n\n{: style=\"color: green\"}\n\nbar", "<div data-node-id=\"20060102150405-1a2b3c4\" data-node-index=\"1\" data-type=\"NodeParagraph\" class=\"p\" style=\"color: green\" updated=\"20060102150405\"><div contenteditable=\"true\" spellcheck=\"false\">foo</div><div class=\"protyle-attr\" contenteditable=\"false\">\u200b</div></div><div data-node-id=\"20060102150405-1a2b3c4\" data-node-index=\"2\" data-type=\"NodeParagraph\" class=\"p\" style=\"color: green\"><div contenteditable=\"true\" spellcheck=\"false\"></div><div class=\"protyle-attr\" contenteditable=\"false\">\u200b</div></div><div data-node-id=\"20060102150405-1a2b3c4\" data-node-index=\"3\" data-type=\"NodeParagraph\" class=\"p\" updated=\"20060102150405\"><div contenteditable=\"true\" spellcheck=\"false\">bar</div><div class=\"protyle-attr\" contenteditable=\"false\">\u200b</div></div>"},
 	{"54", "foo==bar==baz", "<div data-node-id=\"20060102150405-1a2b3c4\" data-node-index=\"1\" data-type=\"NodeParagraph\" class=\"p\" updated=\"20060102150405\"><div contenteditable=\"true\" spellcheck=\"false\">foo<span data-type=\"mark\">bar</span>baz</div><div class=\"protyle-attr\" contenteditable=\"false\">\u200b</div></div>"},
-	{"53", "foo\\\\\\~bar\\\\\\~baz", "<div data-node-id=\"20060102150405-1a2b3c4\" data-node-index=\"1\" data-type=\"NodeParagraph\" class=\"p\" updated=\"20060102150405\"><div contenteditable=\"true\" spellcheck=\"false\">foo\\~bar\\~baz</div><div class=\"protyle-attr\" contenteditable=\"false\">\u200b</div></div>"},
+	{"53", "foo\\\\\\~bar\\\\\\~baz", "<div data-node-id=\"20060102150405-1a2b3c4\" data-node-index=\"1\" data-type=\"NodeParagraph\" class=\"p\" updated=\"20060102150405\"><div contenteditable=\"true\" spellcheck=\"false\">foo<span data-type=\"backslash\"><span>\\</span>\\</span><span data-type=\"backslash\"><span>\\</span>~</span>bar<span data-type=\"backslash\"><span>\\</span>\\</span><span data-type=\"backslash\"><span>\\</span>~</span>baz</div><div class=\"protyle-attr\" contenteditable=\"false\">\u200b</div></div>"},
 	{"52", "<div>\n<details>\n<summary>foo</summary>\n</div>\n{: id=\"20221022222200-2b6wj74\" updated=\"20221022222200\"}\n", "<div data-node-id=\"20221022222200-2b6wj74\" data-node-index=\"1\" data-type=\"NodeHTMLBlock\" class=\"render-node\" updated=\"20221022222200\" data-subtype=\"block\"><div class=\"protyle-icons\"><span class=\"b3-tooltips__nw b3-tooltips protyle-icon protyle-icon--first protyle-action__edit\"><svg><use xlink:href=\"#iconEdit\"></use></svg></span><span class=\"b3-tooltips__nw b3-tooltips protyle-icon protyle-action__menu protyle-icon--last\"><svg><use xlink:href=\"#iconMore\"></use></svg></span></div><div><protyle-html data-content=\"&lt;div&gt;\n&lt;details&gt;\n&lt;summary&gt;foo&lt;/summary&gt;\n&lt;/div&gt;\"></protyle-html><span style=\"position: absolute\">\u200b</span></div><div class=\"protyle-attr\" contenteditable=\"false\">\u200b</div></div>"},
 	{"51", "~~~foo~~~", "<div data-node-id=\"20060102150405-1a2b3c4\" data-node-index=\"1\" data-type=\"NodeParagraph\" class=\"p\" updated=\"20060102150405\"><div contenteditable=\"true\" spellcheck=\"false\"><span data-type=\"sub s\">foo</span></div><div class=\"protyle-attr\" contenteditable=\"false\">\u200b</div></div>"},
 	{"50", "#foo'bar#", "<div data-node-id=\"20060102150405-1a2b3c4\" data-node-index=\"1\" data-type=\"NodeParagraph\" class=\"p\" updated=\"20060102150405\"><div contenteditable=\"true\" spellcheck=\"false\">\u200b<span data-type=\"tag\">\u200bfoo'bar</span>\u200b</div><div class=\"protyle-attr\" contenteditable=\"false\">\u200b</div></div>"},