4 files changed, 31 insertions, 16 deletions

diff --git a/vendor/github.com/yuin/goldmark/README.md b/vendor/github.com/yuin/goldmark/README.md
index 6244b4792..eaaf27e38 100644
--- a/vendor/github.com/yuin/goldmark/README.md
+++ b/vendor/github.com/yuin/goldmark/README.md
@@ -440,6 +440,9 @@ Extensions
 - [goldmark-pdf](https://github.com/stephenafamo/goldmark-pdf): A PDF renderer that can be passed to `goldmark.WithRenderer()`.
 - [goldmark-hashtag](https://github.com/abhinav/goldmark-hashtag): Adds support for `#hashtag`-based tagging to goldmark.
 - [goldmark-wikilink](https://github.com/abhinav/goldmark-wikilink): Adds support for `[[wiki]]`-style links to goldmark.
+- [goldmark-anchor](https://github.com/abhinav/goldmark-anchor): Adds anchors (permalinks) next to all headers in a document.
+- [goldmark-figure](https://github.com/mangoumbrella/goldmark-figure): Adds support for rendering paragraphs starting with an image to `<figure>` elements.
+- [goldmark-frontmatter](https://github.com/abhinav/goldmark-frontmatter): Adds support for YAML, TOML, and custom front matter to documents.
 - [goldmark-toc](https://github.com/abhinav/goldmark-toc): Adds support for generating tables-of-contents for goldmark documents.
 - [goldmark-mermaid](https://github.com/abhinav/goldmark-mermaid): Adds support for rendering [Mermaid](https://mermaid-js.github.io/mermaid/) diagrams in goldmark documents.
 - [goldmark-pikchr](https://github.com/jchenry/goldmark-pikchr): Adds support for rendering [Pikchr](https://pikchr.org/home/doc/trunk/homepage.md) diagrams in goldmark documents.
@@ -448,6 +451,7 @@ Extensions
 - [goldmark-fences](https://github.com/stefanfritsch/goldmark-fences): Support for pandoc-style [fenced divs](https://pandoc.org/MANUAL.html#divs-and-spans) in goldmark.
 - [goldmark-d2](https://github.com/FurqanSoftware/goldmark-d2): Adds support for [D2](https://d2lang.com/) diagrams.
 - [goldmark-katex](https://github.com/FurqanSoftware/goldmark-katex): Adds support for [KaTeX](https://katex.org/) math and equations.
+- [goldmark-img64](https://github.com/tenkoh/goldmark-img64): Adds support for embedding images into the document as DataURL (base64 encoded).
 
 
 goldmark internal(for extension developers)
diff --git a/vendor/github.com/yuin/goldmark/parser/raw_html.go b/vendor/github.com/yuin/goldmark/parser/raw_html.go
index 55b9a9967..cae88a66e 100644
--- a/vendor/github.com/yuin/goldmark/parser/raw_html.go
+++ b/vendor/github.com/yuin/goldmark/parser/raw_html.go
@@ -48,10 +48,10 @@ func (s *rawHTMLParser) Parse(parent ast.Node, block text.Reader, pc Context) as
 }
 
 var tagnamePattern = `([A-Za-z][A-Za-z0-9-]*)`
-
+var spaceOrOneNewline = `(?:[ \t]|(?:\r\n|\n){0,1})`
 var attributePattern = `(?:[\r\n \t]+[a-zA-Z_:][a-zA-Z0-9:._-]*(?:[\r\n \t]*=[\r\n \t]*(?:[^\"'=<>` + "`" + `\x00-\x20]+|'[^']*'|"[^"]*"))?)`
-var openTagRegexp = regexp.MustCompile("^<" + tagnamePattern + attributePattern + `*[ \t]*/?>`)
-var closeTagRegexp = regexp.MustCompile("^</" + tagnamePattern + `\s*>`)
+var openTagRegexp = regexp.MustCompile("^<" + tagnamePattern + attributePattern + `*` + spaceOrOneNewline + `*/?>`)
+var closeTagRegexp = regexp.MustCompile("^</" + tagnamePattern + spaceOrOneNewline + `*>`)
 
 var openProcessingInstruction = []byte("<?")
 var closeProcessingInstruction = []byte("?>")
diff --git a/vendor/github.com/yuin/goldmark/renderer/html/html.go b/vendor/github.com/yuin/goldmark/renderer/html/html.go
index 7bf2ab808..72f7e74d8 100644
--- a/vendor/github.com/yuin/goldmark/renderer/html/html.go
+++ b/vendor/github.com/yuin/goldmark/renderer/html/html.go
@@ -901,20 +901,24 @@ var bVb = []byte("vbscript:")
 var bFile = []byte("file:")
 var bData = []byte("data:")
 
+func hasPrefix(s, prefix []byte) bool {
+	return len(s) >= len(prefix) && bytes.Equal(bytes.ToLower(s[0:len(prefix)]), bytes.ToLower(prefix))
+}
+
 // IsDangerousURL returns true if the given url seems a potentially dangerous url,
 // otherwise false.
 func IsDangerousURL(url []byte) bool {
-	if bytes.HasPrefix(url, bDataImage) && len(url) >= 11 {
+	if hasPrefix(url, bDataImage) && len(url) >= 11 {
 		v := url[11:]
-		if bytes.HasPrefix(v, bPng) || bytes.HasPrefix(v, bGif) ||
-			bytes.HasPrefix(v, bJpeg) || bytes.HasPrefix(v, bWebp) ||
-			bytes.HasPrefix(v, bSvg) {
+		if hasPrefix(v, bPng) || hasPrefix(v, bGif) ||
+			hasPrefix(v, bJpeg) || hasPrefix(v, bWebp) ||
+			hasPrefix(v, bSvg) {
 			return false
 		}
 		return true
 	}
-	return bytes.HasPrefix(url, bJs) || bytes.HasPrefix(url, bVb) ||
-		bytes.HasPrefix(url, bFile) || bytes.HasPrefix(url, bData)
+	return hasPrefix(url, bJs) || hasPrefix(url, bVb) ||
+		hasPrefix(url, bFile) || hasPrefix(url, bData)
 }
 
 func nodeToHTMLText(n ast.Node, source []byte) []byte {
diff --git a/vendor/github.com/yuin/goldmark/text/reader.go b/vendor/github.com/yuin/goldmark/text/reader.go
index 319f1c8b8..d43690a19 100644
--- a/vendor/github.com/yuin/goldmark/text/reader.go
+++ b/vendor/github.com/yuin/goldmark/text/reader.go
@@ -1,6 +1,7 @@
 package text
 
 import (
+	"bytes"
 	"io"
 	"regexp"
 	"unicode/utf8"
@@ -537,24 +538,30 @@ func matchReader(r Reader, reg *regexp.Regexp) bool {
 }
 
 func findSubMatchReader(r Reader, reg *regexp.Regexp) [][]byte {
-	oldline, oldseg := r.Position()
+	oldLine, oldSeg := r.Position()
 	match := reg.FindReaderSubmatchIndex(r)
-	r.SetPosition(oldline, oldseg)
+	r.SetPosition(oldLine, oldSeg)
 	if match == nil {
 		return nil
 	}
-	runes := make([]rune, 0, match[1]-match[0])
+	var bb bytes.Buffer
+	bb.Grow(match[1] - match[0])
 	for i := 0; i < match[1]; {
 		r, size, _ := readRuneReader(r)
 		i += size
-		runes = append(runes, r)
+		bb.WriteRune(r)
 	}
-	result := [][]byte{}
+	bs := bb.Bytes()
+	var result [][]byte
 	for i := 0; i < len(match); i += 2 {
-		result = append(result, []byte(string(runes[match[i]:match[i+1]])))
+		if match[i] < 0 {
+			result = append(result, []byte{})
+			continue
+		}
+		result = append(result, bs[match[i]:match[i+1]])
 	}
 
-	r.SetPosition(oldline, oldseg)
+	r.SetPosition(oldLine, oldSeg)
 	r.Advance(match[1] - match[0])
 	return result
 }