From 4e50fd864921c556988c919269448efdb90fa961 Mon Sep 17 00:00:00 2001
From: Wim <wim@42.be>
Date: Mon, 10 Aug 2020 00:29:54 +0200
Subject: Use mattermost v5 module (#1192)

---
 .../v5/utils/markdown/autolink.go                  |  257 +++
 .../v5/utils/markdown/block_quote.go               |   62 +
 .../mattermost-server/v5/utils/markdown/blocks.go  |  153 ++
 .../v5/utils/markdown/document.go                  |   22 +
 .../v5/utils/markdown/fenced_code.go               |  112 +
 .../mattermost-server/v5/utils/markdown/html.go    |  192 ++
 .../v5/utils/markdown/html_entities.go             | 2132 ++++++++++++++++++++
 .../v5/utils/markdown/indented_code.go             |   98 +
 .../mattermost-server/v5/utils/markdown/inlines.go |  664 ++++++
 .../mattermost-server/v5/utils/markdown/inspect.go |   78 +
 .../mattermost-server/v5/utils/markdown/lines.go   |   27 +
 .../mattermost-server/v5/utils/markdown/links.go   |  184 ++
 .../mattermost-server/v5/utils/markdown/list.go    |  220 ++
 .../v5/utils/markdown/markdown.go                  |  148 ++
 .../v5/utils/markdown/paragraph.go                 |   71 +
 .../v5/utils/markdown/reference_definition.go      |   75 +
 16 files changed, 4495 insertions(+)
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/autolink.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/block_quote.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/blocks.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/document.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/fenced_code.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/html.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/html_entities.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/indented_code.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/inlines.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/inspect.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/lines.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/links.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/list.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/markdown.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/paragraph.go
 create mode 100644 vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/reference_definition.go

(limited to 'vendor/github.com/mattermost/mattermost-server/v5/utils/markdown')

diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/autolink.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/autolink.go
new file mode 100644
index 00000000..14180836
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/autolink.go
@@ -0,0 +1,257 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+import (
+	"regexp"
+	"strings"
+	"unicode"
+	"unicode/utf8"
+)
+
+// Based off of extensions/autolink.c from https://github.com/github/cmark
+
+var (
+	DefaultUrlSchemes = []string{"http", "https", "ftp", "mailto", "tel"}
+)
+
+// Given a string with a w at the given position, tries to parse and return a range containing a www link.
+// if one exists. If the text at the given position isn't a link, returns an empty string. Equivalent to
+// www_match from the reference code.
+func parseWWWAutolink(data string, position int) (Range, bool) {
+	// Check that this isn't part of another word
+	if position > 1 {
+		prevChar := data[position-1]
+
+		if !isWhitespaceByte(prevChar) && !isAllowedBeforeWWWLink(prevChar) {
+			return Range{}, false
+		}
+	}
+
+	// Check that this starts with www
+	if len(data)-position < 4 || !regexp.MustCompile(`^www\d{0,3}\.`).MatchString(data[position:]) {
+		return Range{}, false
+	}
+
+	end := checkDomain(data[position:], false)
+	if end == 0 {
+		return Range{}, false
+	}
+
+	end += position
+
+	// Grab all text until the end of the string or the next whitespace character
+	for end < len(data) && !isWhitespaceByte(data[end]) {
+		end += 1
+	}
+
+	// Trim trailing punctuation
+	end = trimTrailingCharactersFromLink(data, position, end)
+	if position == end {
+		return Range{}, false
+	}
+
+	return Range{position, end}, true
+}
+
+func isAllowedBeforeWWWLink(c byte) bool {
+	switch c {
+	case '*', '_', '~', ')':
+		return true
+	default:
+		return false
+	}
+}
+
+// Given a string with a : at the given position, tried to parse and return a range containing a URL scheme
+// if one exists. If the text around the given position isn't a link, returns an empty string. Equivalent to
+// url_match from the reference code.
+func parseURLAutolink(data string, position int) (Range, bool) {
+	// Check that a :// exists. This doesn't match the clients that treat the slashes as optional.
+	if len(data)-position < 4 || data[position+1] != '/' || data[position+2] != '/' {
+		return Range{}, false
+	}
+
+	start := position - 1
+	for start > 0 && isAlphanumericByte(data[start-1]) {
+		start -= 1
+	}
+
+	if start < 0 || position >= len(data) {
+		return Range{}, false
+	}
+
+	// Ensure that the URL scheme is allowed and that at least one character after the scheme is valid.
+	scheme := data[start:position]
+	if !isSchemeAllowed(scheme) || !isValidHostCharacter(data[position+3:]) {
+		return Range{}, false
+	}
+
+	end := checkDomain(data[position+3:], true)
+	if end == 0 {
+		return Range{}, false
+	}
+
+	end += position
+
+	// Grab all text until the end of the string or the next whitespace character
+	for end < len(data) && !isWhitespaceByte(data[end]) {
+		end += 1
+	}
+
+	// Trim trailing punctuation
+	end = trimTrailingCharactersFromLink(data, start, end)
+	if start == end {
+		return Range{}, false
+	}
+
+	return Range{start, end}, true
+}
+
+func isSchemeAllowed(scheme string) bool {
+	// Note that this doesn't support the custom URL schemes implemented by the client
+	for _, allowed := range DefaultUrlSchemes {
+		if strings.EqualFold(allowed, scheme) {
+			return true
+		}
+	}
+
+	return false
+}
+
+// Given a string starting with a URL, returns the number of valid characters that make up the URL's domain.
+// Returns 0 if the string doesn't start with a domain name. allowShort determines whether or not the domain
+// needs to contain a period to be considered valid. Equivalent to check_domain from the reference code.
+func checkDomain(data string, allowShort bool) int {
+	foundUnderscore := false
+	foundPeriod := false
+
+	i := 1
+	for ; i < len(data)-1; i++ {
+		if data[i] == '_' {
+			foundUnderscore = true
+			break
+		} else if data[i] == '.' {
+			foundPeriod = true
+		} else if !isValidHostCharacter(data[i:]) && data[i] != '-' {
+			break
+		}
+	}
+
+	if foundUnderscore {
+		return 0
+	}
+
+	if allowShort {
+		// If allowShort is set, accept any string of valid domain characters
+		return i
+	}
+
+	// If allowShort isn't set, a valid domain just requires at least a single period. Note that this
+	// logic isn't entirely necessary because we already know the string starts with "www." when
+	// this is called from parseWWWAutolink
+	if foundPeriod {
+		return i
+	} else {
+		return 0
+	}
+}
+
+// Returns true if the provided link starts with a valid character for a domain name. Equivalent to
+// is_valid_hostchar from the reference code.
+func isValidHostCharacter(link string) bool {
+	c, _ := utf8.DecodeRuneInString(link)
+	if c == utf8.RuneError {
+		return false
+	}
+
+	return !unicode.IsSpace(c) && !unicode.IsPunct(c)
+}
+
+// Removes any trailing characters such as punctuation or stray brackets that shouldn't be part of the link.
+// Returns a new end position for the link. Equivalent to autolink_delim from the reference code.
+func trimTrailingCharactersFromLink(markdown string, start int, end int) int {
+	runes := []rune(markdown[start:end])
+	linkEnd := len(runes)
+
+	// Cut off the link before an open angle bracket if it contains one
+	for i, c := range runes {
+		if c == '<' {
+			linkEnd = i
+			break
+		}
+	}
+
+	for linkEnd > 0 {
+		c := runes[linkEnd-1]
+
+		if !canEndAutolink(c) {
+			// Trim trailing quotes, periods, etc
+			linkEnd = linkEnd - 1
+		} else if c == ';' {
+			// Trim a trailing HTML entity
+			newEnd := linkEnd - 2
+
+			for newEnd > 0 && ((runes[newEnd] >= 'a' && runes[newEnd] <= 'z') || (runes[newEnd] >= 'A' && runes[newEnd] <= 'Z')) {
+				newEnd -= 1
+			}
+
+			if newEnd < linkEnd-2 && runes[newEnd] == '&' {
+				linkEnd = newEnd
+			} else {
+				// This isn't actually an HTML entity, so just trim the semicolon
+				linkEnd = linkEnd - 1
+			}
+		} else if c == ')' {
+			// Only allow an autolink ending with a bracket if that bracket is part of a matching pair of brackets.
+			// If there are more closing brackets than opening ones, remove the extra bracket
+
+			numClosing := 0
+			numOpening := 0
+
+			// Examples (input text => output linked portion):
+			//
+			//  http://www.pokemon.com/Pikachu_(Electric)
+			//    => http://www.pokemon.com/Pikachu_(Electric)
+			//
+			//  http://www.pokemon.com/Pikachu_((Electric)
+			//    => http://www.pokemon.com/Pikachu_((Electric)
+			//
+			//  http://www.pokemon.com/Pikachu_(Electric))
+			//    => http://www.pokemon.com/Pikachu_(Electric)
+			//
+			//  http://www.pokemon.com/Pikachu_((Electric))
+			//    => http://www.pokemon.com/Pikachu_((Electric))
+
+			for i := 0; i < linkEnd; i++ {
+				if runes[i] == '(' {
+					numOpening += 1
+				} else if runes[i] == ')' {
+					numClosing += 1
+				}
+			}
+
+			if numClosing <= numOpening {
+				// There's fewer or equal closing brackets, so we've found the end of the link
+				break
+			}
+
+			linkEnd -= 1
+		} else {
+			// There's no special characters at the end of the link, so we're at the end
+			break
+		}
+	}
+
+	return start + len(string(runes[:linkEnd]))
+}
+
+func canEndAutolink(c rune) bool {
+	switch c {
+	case '?', '!', '.', ',', ':', '*', '_', '~', '\'', '"':
+		return false
+	default:
+		return true
+	}
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/block_quote.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/block_quote.go
new file mode 100644
index 00000000..6ae2ff44
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/block_quote.go
@@ -0,0 +1,62 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+type BlockQuote struct {
+	blockBase
+	markdown string
+
+	Children []Block
+}
+
+func (b *BlockQuote) Continuation(indentation int, r Range) *continuation {
+	if indentation > 3 {
+		return nil
+	}
+	s := b.markdown[r.Position:r.End]
+	if s == "" || s[0] != '>' {
+		return nil
+	}
+	remaining := Range{r.Position + 1, r.End}
+	indentation, indentationBytes := countIndentation(b.markdown, remaining)
+	if indentation > 0 {
+		indentation--
+	}
+	return &continuation{
+		Indentation: indentation,
+		Remaining:   Range{remaining.Position + indentationBytes, remaining.End},
+	}
+}
+
+func (b *BlockQuote) AddChild(openBlocks []Block) []Block {
+	b.Children = append(b.Children, openBlocks[0])
+	return openBlocks
+}
+
+func blockQuoteStart(markdown string, indent int, r Range, matchedBlocks, unmatchedBlocks []Block) []Block {
+	if indent > 3 {
+		return nil
+	}
+	s := markdown[r.Position:r.End]
+	if s == "" || s[0] != '>' {
+		return nil
+	}
+
+	block := &BlockQuote{
+		markdown: markdown,
+	}
+	r.Position++
+	if len(s) > 1 && s[1] == ' ' {
+		r.Position++
+	}
+
+	indent, bytes := countIndentation(markdown, r)
+
+	ret := []Block{block}
+	if descendants := blockStartOrParagraph(markdown, indent, Range{r.Position + bytes, r.End}, nil, nil); descendants != nil {
+		block.Children = append(block.Children, descendants[0])
+		ret = append(ret, descendants...)
+	}
+	return ret
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/blocks.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/blocks.go
new file mode 100644
index 00000000..44ee178d
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/blocks.go
@@ -0,0 +1,153 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+import (
+	"strings"
+)
+
+type continuation struct {
+	Indentation int
+	Remaining   Range
+}
+
+type Block interface {
+	Continuation(indentation int, r Range) *continuation
+	AddLine(indentation int, r Range) bool
+	Close()
+	AllowsBlockStarts() bool
+	HasTrailingBlankLine() bool
+}
+
+type blockBase struct{}
+
+func (*blockBase) AddLine(indentation int, r Range) bool { return false }
+func (*blockBase) Close()                                {}
+func (*blockBase) AllowsBlockStarts() bool               { return true }
+func (*blockBase) HasTrailingBlankLine() bool            { return false }
+
+type ContainerBlock interface {
+	Block
+	AddChild(openBlocks []Block) []Block
+}
+
+type Range struct {
+	Position int
+	End      int
+}
+
+func closeBlocks(blocks []Block, referenceDefinitions *[]*ReferenceDefinition) {
+	for _, block := range blocks {
+		block.Close()
+		if p, ok := block.(*Paragraph); ok && len(p.ReferenceDefinitions) > 0 {
+			*referenceDefinitions = append(*referenceDefinitions, p.ReferenceDefinitions...)
+		}
+	}
+}
+
+func ParseBlocks(markdown string, lines []Line) (*Document, []*ReferenceDefinition) {
+	document := &Document{}
+	var referenceDefinitions []*ReferenceDefinition
+
+	openBlocks := []Block{document}
+
+	for _, line := range lines {
+		r := line.Range
+		lastMatchIndex := 0
+
+		indentation, indentationBytes := countIndentation(markdown, r)
+		r = Range{r.Position + indentationBytes, r.End}
+
+		for i, block := range openBlocks {
+			if continuation := block.Continuation(indentation, r); continuation != nil {
+				indentation = continuation.Indentation
+				r = continuation.Remaining
+				additionalIndentation, additionalIndentationBytes := countIndentation(markdown, r)
+				r = Range{r.Position + additionalIndentationBytes, r.End}
+				indentation += additionalIndentation
+				lastMatchIndex = i
+			} else {
+				break
+			}
+		}
+
+		if openBlocks[lastMatchIndex].AllowsBlockStarts() {
+			if newBlocks := blockStart(markdown, indentation, r, openBlocks[:lastMatchIndex+1], openBlocks[lastMatchIndex+1:]); newBlocks != nil {
+				didAdd := false
+				for i := lastMatchIndex; i >= 0; i-- {
+					if container, ok := openBlocks[i].(ContainerBlock); ok {
+						if addedBlocks := container.AddChild(newBlocks); addedBlocks != nil {
+							closeBlocks(openBlocks[i+1:], &referenceDefinitions)
+							openBlocks = openBlocks[:i+1]
+							openBlocks = append(openBlocks, addedBlocks...)
+							didAdd = true
+							break
+						}
+					}
+				}
+				if didAdd {
+					continue
+				}
+			}
+		}
+
+		isBlank := strings.TrimSpace(markdown[r.Position:r.End]) == ""
+		if paragraph, ok := openBlocks[len(openBlocks)-1].(*Paragraph); ok && !isBlank {
+			paragraph.Text = append(paragraph.Text, r)
+			continue
+		}
+
+		closeBlocks(openBlocks[lastMatchIndex+1:], &referenceDefinitions)
+		openBlocks = openBlocks[:lastMatchIndex+1]
+
+		if openBlocks[lastMatchIndex].AddLine(indentation, r) {
+			continue
+		}
+
+		if paragraph := newParagraph(markdown, r); paragraph != nil {
+			for i := lastMatchIndex; i >= 0; i-- {
+				if container, ok := openBlocks[i].(ContainerBlock); ok {
+					if newBlocks := container.AddChild([]Block{paragraph}); newBlocks != nil {
+						closeBlocks(openBlocks[i+1:], &referenceDefinitions)
+						openBlocks = openBlocks[:i+1]
+						openBlocks = append(openBlocks, newBlocks...)
+						break
+					}
+				}
+			}
+		}
+	}
+
+	closeBlocks(openBlocks, &referenceDefinitions)
+
+	return document, referenceDefinitions
+}
+
+func blockStart(markdown string, indentation int, r Range, matchedBlocks, unmatchedBlocks []Block) []Block {
+	if r.Position >= r.End {
+		return nil
+	}
+
+	if start := blockQuoteStart(markdown, indentation, r, matchedBlocks, unmatchedBlocks); start != nil {
+		return start
+	} else if start := listStart(markdown, indentation, r, matchedBlocks, unmatchedBlocks); start != nil {
+		return start
+	} else if start := indentedCodeStart(markdown, indentation, r, matchedBlocks, unmatchedBlocks); start != nil {
+		return start
+	} else if start := fencedCodeStart(markdown, indentation, r, matchedBlocks, unmatchedBlocks); start != nil {
+		return start
+	}
+
+	return nil
+}
+
+func blockStartOrParagraph(markdown string, indentation int, r Range, matchedBlocks, unmatchedBlocks []Block) []Block {
+	if start := blockStart(markdown, indentation, r, matchedBlocks, unmatchedBlocks); start != nil {
+		return start
+	}
+	if paragraph := newParagraph(markdown, r); paragraph != nil {
+		return []Block{paragraph}
+	}
+	return nil
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/document.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/document.go
new file mode 100644
index 00000000..306b93da
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/document.go
@@ -0,0 +1,22 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+type Document struct {
+	blockBase
+
+	Children []Block
+}
+
+func (b *Document) Continuation(indentation int, r Range) *continuation {
+	return &continuation{
+		Indentation: indentation,
+		Remaining:   r,
+	}
+}
+
+func (b *Document) AddChild(openBlocks []Block) []Block {
+	b.Children = append(b.Children, openBlocks[0])
+	return openBlocks
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/fenced_code.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/fenced_code.go
new file mode 100644
index 00000000..4fd97fd0
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/fenced_code.go
@@ -0,0 +1,112 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+import (
+	"strings"
+)
+
+type FencedCodeLine struct {
+	Indentation int
+	Range       Range
+}
+
+type FencedCode struct {
+	blockBase
+	markdown           string
+	didSeeClosingFence bool
+
+	Indentation  int
+	OpeningFence Range
+	RawInfo      Range
+	RawCode      []FencedCodeLine
+}
+
+func (b *FencedCode) Code() (result string) {
+	for _, code := range b.RawCode {
+		result += strings.Repeat(" ", code.Indentation) + b.markdown[code.Range.Position:code.Range.End]
+	}
+	return
+}
+
+func (b *FencedCode) Info() string {
+	return Unescape(b.markdown[b.RawInfo.Position:b.RawInfo.End])
+}
+
+func (b *FencedCode) Continuation(indentation int, r Range) *continuation {
+	if b.didSeeClosingFence {
+		return nil
+	}
+	return &continuation{
+		Indentation: indentation,
+		Remaining:   r,
+	}
+}
+
+func (b *FencedCode) AddLine(indentation int, r Range) bool {
+	s := b.markdown[r.Position:r.End]
+	if indentation <= 3 && strings.HasPrefix(s, b.markdown[b.OpeningFence.Position:b.OpeningFence.End]) {
+		suffix := strings.TrimSpace(s[b.OpeningFence.End-b.OpeningFence.Position:])
+		isClosingFence := true
+		for _, c := range suffix {
+			if c != rune(s[0]) {
+				isClosingFence = false
+				break
+			}
+		}
+		if isClosingFence {
+			b.didSeeClosingFence = true
+			return true
+		}
+	}
+
+	if indentation >= b.Indentation {
+		indentation -= b.Indentation
+	} else {
+		indentation = 0
+	}
+
+	b.RawCode = append(b.RawCode, FencedCodeLine{
+		Indentation: indentation,
+		Range:       r,
+	})
+	return true
+}
+
+func (b *FencedCode) AllowsBlockStarts() bool {
+	return false
+}
+
+func fencedCodeStart(markdown string, indentation int, r Range, matchedBlocks, unmatchedBlocks []Block) []Block {
+	s := markdown[r.Position:r.End]
+
+	if !strings.HasPrefix(s, "```") && !strings.HasPrefix(s, "~~~") {
+		return nil
+	}
+
+	fenceCharacter := rune(s[0])
+	fenceLength := 3
+	for _, c := range s[3:] {
+		if c == fenceCharacter {
+			fenceLength++
+		} else {
+			break
+		}
+	}
+
+	for i := r.Position + fenceLength; i < r.End; i++ {
+		if markdown[i] == '`' {
+			return nil
+		}
+	}
+
+	return []Block{
+		&FencedCode{
+			markdown:     markdown,
+			Indentation:  indentation,
+			RawInfo:      trimRightSpace(markdown, Range{r.Position + fenceLength, r.End}),
+			OpeningFence: Range{r.Position, r.Position + fenceLength},
+		},
+	}
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/html.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/html.go
new file mode 100644
index 00000000..52583074
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/html.go
@@ -0,0 +1,192 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+import (
+	"fmt"
+	"strings"
+)
+
+var htmlEscaper = strings.NewReplacer(
+	`&`, "&amp;",
+	`<`, "&lt;",
+	`>`, "&gt;",
+	`"`, "&quot;",
+)
+
+// RenderHTML produces HTML with the same behavior as the example renderer used in the CommonMark
+// reference materials except for one slight difference: for brevity, no unnecessary whitespace is
+// inserted between elements. The output is not defined by the CommonMark spec, and it exists
+// primarily as an aid in testing.
+func RenderHTML(markdown string) string {
+	return RenderBlockHTML(Parse(markdown))
+}
+
+func RenderBlockHTML(block Block, referenceDefinitions []*ReferenceDefinition) (result string) {
+	return renderBlockHTML(block, referenceDefinitions, false)
+}
+
+func renderBlockHTML(block Block, referenceDefinitions []*ReferenceDefinition, isTightList bool) (result string) {
+	switch v := block.(type) {
+	case *Document:
+		for _, block := range v.Children {
+			result += RenderBlockHTML(block, referenceDefinitions)
+		}
+	case *Paragraph:
+		if len(v.Text) == 0 {
+			return
+		}
+		if !isTightList {
+			result += "<p>"
+		}
+		for _, inline := range v.ParseInlines(referenceDefinitions) {
+			result += RenderInlineHTML(inline)
+		}
+		if !isTightList {
+			result += "</p>"
+		}
+	case *List:
+		if v.IsOrdered {
+			if v.OrderedStart != 1 {
+				result += fmt.Sprintf(`<ol start="%v">`, v.OrderedStart)
+			} else {
+				result += "<ol>"
+			}
+		} else {
+			result += "<ul>"
+		}
+		for _, block := range v.Children {
+			result += renderBlockHTML(block, referenceDefinitions, !v.IsLoose)
+		}
+		if v.IsOrdered {
+			result += "</ol>"
+		} else {
+			result += "</ul>"
+		}
+	case *ListItem:
+		result += "<li>"
+		for _, block := range v.Children {
+			result += renderBlockHTML(block, referenceDefinitions, isTightList)
+		}
+		result += "</li>"
+	case *BlockQuote:
+		result += "<blockquote>"
+		for _, block := range v.Children {
+			result += RenderBlockHTML(block, referenceDefinitions)
+		}
+		result += "</blockquote>"
+	case *FencedCode:
+		if info := v.Info(); info != "" {
+			language := strings.Fields(info)[0]
+			result += `<pre><code class="language-` + htmlEscaper.Replace(language) + `">`
+		} else {
+			result += "<pre><code>"
+		}
+		result += htmlEscaper.Replace(v.Code()) + "</code></pre>"
+	case *IndentedCode:
+		result += "<pre><code>" + htmlEscaper.Replace(v.Code()) + "</code></pre>"
+	default:
+		panic(fmt.Sprintf("missing case for type %T", v))
+	}
+	return
+}
+
+func escapeURL(url string) (result string) {
+	for i := 0; i < len(url); {
+		switch b := url[i]; b {
+		case ';', '/', '?', ':', '@', '&', '=', '+', '$', ',', '-', '_', '.', '!', '~', '*', '\'', '(', ')', '#':
+			result += string(b)
+			i++
+		default:
+			if b == '%' && i+2 < len(url) && isHexByte(url[i+1]) && isHexByte(url[i+2]) {
+				result += url[i : i+3]
+				i += 3
+			} else if (b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || (b >= '0' && b <= '9') {
+				result += string(b)
+				i++
+			} else {
+				result += fmt.Sprintf("%%%0X", b)
+				i++
+			}
+		}
+	}
+	return
+}
+
+func RenderInlineHTML(inline Inline) (result string) {
+	switch v := inline.(type) {
+	case *Text:
+		return htmlEscaper.Replace(v.Text)
+	case *HardLineBreak:
+		return "<br />"
+	case *SoftLineBreak:
+		return "\n"
+	case *CodeSpan:
+		return "<code>" + htmlEscaper.Replace(v.Code) + "</code>"
+	case *InlineImage:
+		result += `<img src="` + htmlEscaper.Replace(escapeURL(v.Destination())) + `" alt="` + htmlEscaper.Replace(renderImageAltText(v.Children)) + `"`
+		if title := v.Title(); title != "" {
+			result += ` title="` + htmlEscaper.Replace(title) + `"`
+		}
+		result += ` />`
+	case *ReferenceImage:
+		result += `<img src="` + htmlEscaper.Replace(escapeURL(v.Destination())) + `" alt="` + htmlEscaper.Replace(renderImageAltText(v.Children)) + `"`
+		if title := v.Title(); title != "" {
+			result += ` title="` + htmlEscaper.Replace(title) + `"`
+		}
+		result += ` />`
+	case *InlineLink:
+		result += `<a href="` + htmlEscaper.Replace(escapeURL(v.Destination())) + `"`
+		if title := v.Title(); title != "" {
+			result += ` title="` + htmlEscaper.Replace(title) + `"`
+		}
+		result += `>`
+		for _, inline := range v.Children {
+			result += RenderInlineHTML(inline)
+		}
+		result += "</a>"
+	case *ReferenceLink:
+		result += `<a href="` + htmlEscaper.Replace(escapeURL(v.Destination())) + `"`
+		if title := v.Title(); title != "" {
+			result += ` title="` + htmlEscaper.Replace(title) + `"`
+		}
+		result += `>`
+		for _, inline := range v.Children {
+			result += RenderInlineHTML(inline)
+		}
+		result += "</a>"
+	case *Autolink:
+		result += `<a href="` + htmlEscaper.Replace(escapeURL(v.Destination())) + `">`
+		for _, inline := range v.Children {
+			result += RenderInlineHTML(inline)
+		}
+		result += "</a>"
+	default:
+		panic(fmt.Sprintf("missing case for type %T", v))
+	}
+	return
+}
+
+func renderImageAltText(children []Inline) (result string) {
+	for _, inline := range children {
+		result += renderImageChildAltText(inline)
+	}
+	return
+}
+
+func renderImageChildAltText(inline Inline) (result string) {
+	switch v := inline.(type) {
+	case *Text:
+		return v.Text
+	case *InlineImage:
+		for _, inline := range v.Children {
+			result += renderImageChildAltText(inline)
+		}
+	case *InlineLink:
+		for _, inline := range v.Children {
+			result += renderImageChildAltText(inline)
+		}
+	}
+	return
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/html_entities.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/html_entities.go
new file mode 100644
index 00000000..e94cebb9
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/html_entities.go
@@ -0,0 +1,2132 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+var htmlEntities = map[string]string{
+	"AElig":                           "\u00C6",
+	"AMP":                             "\u0026",
+	"Aacute":                          "\u00C1",
+	"Abreve":                          "\u0102",
+	"Acirc":                           "\u00C2",
+	"Acy":                             "\u0410",
+	"Afr":                             "\U0001D504",
+	"Agrave":                          "\u00C0",
+	"Alpha":                           "\u0391",
+	"Amacr":                           "\u0100",
+	"And":                             "\u2A53",
+	"Aogon":                           "\u0104",
+	"Aopf":                            "\U0001D538",
+	"ApplyFunction":                   "\u2061",
+	"Aring":                           "\u00C5",
+	"Ascr":                            "\U0001D49C",
+	"Assign":                          "\u2254",
+	"Atilde":                          "\u00C3",
+	"Auml":                            "\u00C4",
+	"Backslash":                       "\u2216",
+	"Barv":                            "\u2AE7",
+	"Barwed":                          "\u2306",
+	"Bcy":                             "\u0411",
+	"Because":                         "\u2235",
+	"Bernoullis":                      "\u212C",
+	"Beta":                            "\u0392",
+	"Bfr":                             "\U0001D505",
+	"Bopf":                            "\U0001D539",
+	"Breve":                           "\u02D8",
+	"Bscr":                            "\u212C",
+	"Bumpeq":                          "\u224E",
+	"CHcy":                            "\u0427",
+	"COPY":                            "\u00A9",
+	"Cacute":                          "\u0106",
+	"Cap":                             "\u22D2",
+	"CapitalDifferentialD":            "\u2145",
+	"Cayleys":                         "\u212D",
+	"Ccaron":                          "\u010C",
+	"Ccedil":                          "\u00C7",
+	"Ccirc":                           "\u0108",
+	"Cconint":                         "\u2230",
+	"Cdot":                            "\u010A",
+	"Cedilla":                         "\u00B8",
+	"CenterDot":                       "\u00B7",
+	"Cfr":                             "\u212D",
+	"Chi":                             "\u03A7",
+	"CircleDot":                       "\u2299",
+	"CircleMinus":                     "\u2296",
+	"CirclePlus":                      "\u2295",
+	"CircleTimes":                     "\u2297",
+	"ClockwiseContourIntegral":        "\u2232",
+	"CloseCurlyDoubleQuote":           "\u201D",
+	"CloseCurlyQuote":                 "\u2019",
+	"Colon":                           "\u2237",
+	"Colone":                          "\u2A74",
+	"Congruent":                       "\u2261",
+	"Conint":                          "\u222F",
+	"ContourIntegral":                 "\u222E",
+	"Copf":                            "\u2102",
+	"Coproduct":                       "\u2210",
+	"CounterClockwiseContourIntegral": "\u2233",
+	"Cross":                           "\u2A2F",
+	"Cscr":                            "\U0001D49E",
+	"Cup":                             "\u22D3",
+	"CupCap":                          "\u224D",
+	"DD":                              "\u2145",
+	"DDotrahd":                        "\u2911",
+	"DJcy":                            "\u0402",
+	"DScy":                            "\u0405",
+	"DZcy":                            "\u040F",
+	"Dagger":                          "\u2021",
+	"Darr":                            "\u21A1",
+	"Dashv":                           "\u2AE4",
+	"Dcaron":                          "\u010E",
+	"Dcy":                             "\u0414",
+	"Del":                             "\u2207",
+	"Delta":                           "\u0394",
+	"Dfr":                             "\U0001D507",
+	"DiacriticalAcute":                "\u00B4",
+	"DiacriticalDot":                  "\u02D9",
+	"DiacriticalDoubleAcute":          "\u02DD",
+	"DiacriticalGrave":                "\u0060",
+	"DiacriticalTilde":                "\u02DC",
+	"Diamond":                         "\u22C4",
+	"DifferentialD":                   "\u2146",
+	"Dopf":                            "\U0001D53B",
+	"Dot":                             "\u00A8",
+	"DotDot":                          "\u20DC",
+	"DotEqual":                        "\u2250",
+	"DoubleContourIntegral":           "\u222F",
+	"DoubleDot":                       "\u00A8",
+	"DoubleDownArrow":                 "\u21D3",
+	"DoubleLeftArrow":                 "\u21D0",
+	"DoubleLeftRightArrow":            "\u21D4",
+	"DoubleLeftTee":                   "\u2AE4",
+	"DoubleLongLeftArrow":             "\u27F8",
+	"DoubleLongLeftRightArrow":        "\u27FA",
+	"DoubleLongRightArrow":            "\u27F9",
+	"DoubleRightArrow":                "\u21D2",
+	"DoubleRightTee":                  "\u22A8",
+	"DoubleUpArrow":                   "\u21D1",
+	"DoubleUpDownArrow":               "\u21D5",
+	"DoubleVerticalBar":               "\u2225",
+	"DownArrow":                       "\u2193",
+	"DownArrowBar":                    "\u2913",
+	"DownArrowUpArrow":                "\u21F5",
+	"DownBreve":                       "\u0311",
+	"DownLeftRightVector":             "\u2950",
+	"DownLeftTeeVector":               "\u295E",
+	"DownLeftVector":                  "\u21BD",
+	"DownLeftVectorBar":               "\u2956",
+	"DownRightTeeVector":              "\u295F",
+	"DownRightVector":                 "\u21C1",
+	"DownRightVectorBar":              "\u2957",
+	"DownTee":                         "\u22A4",
+	"DownTeeArrow":                    "\u21A7",
+	"Downarrow":                       "\u21D3",
+	"Dscr":                            "\U0001D49F",
+	"Dstrok":                          "\u0110",
+	"ENG":                             "\u014A",
+	"ETH":                             "\u00D0",
+	"Eacute":                          "\u00C9",
+	"Ecaron":                          "\u011A",
+	"Ecirc":                           "\u00CA",
+	"Ecy":                             "\u042D",
+	"Edot":                            "\u0116",
+	"Efr":                             "\U0001D508",
+	"Egrave":                          "\u00C8",
+	"Element":                         "\u2208",
+	"Emacr":                           "\u0112",
+	"EmptySmallSquare":                "\u25FB",
+	"EmptyVerySmallSquare":            "\u25AB",
+	"Eogon":                           "\u0118",
+	"Eopf":                            "\U0001D53C",
+	"Epsilon":                         "\u0395",
+	"Equal":                           "\u2A75",
+	"EqualTilde":                      "\u2242",
+	"Equilibrium":                     "\u21CC",
+	"Escr":                            "\u2130",
+	"Esim":                            "\u2A73",
+	"Eta":                             "\u0397",
+	"Euml":                            "\u00CB",
+	"Exists":                          "\u2203",
+	"ExponentialE":                    "\u2147",
+	"Fcy":                             "\u0424",
+	"Ffr":                             "\U0001D509",
+	"FilledSmallSquare":               "\u25FC",
+	"FilledVerySmallSquare":           "\u25AA",
+	"Fopf":                            "\U0001D53D",
+	"ForAll":                          "\u2200",
+	"Fouriertrf":                      "\u2131",
+	"Fscr":                            "\u2131",
+	"GJcy":                            "\u0403",
+	"GT":                              "\u003E",
+	"Gamma":                           "\u0393",
+	"Gammad":                          "\u03DC",
+	"Gbreve":                          "\u011E",
+	"Gcedil":                          "\u0122",
+	"Gcirc":                           "\u011C",
+	"Gcy":                             "\u0413",
+	"Gdot":                            "\u0120",
+	"Gfr":                             "\U0001D50A",
+	"Gg":                              "\u22D9",
+	"Gopf":                            "\U0001D53E",
+	"GreaterEqual":                    "\u2265",
+	"GreaterEqualLess":                "\u22DB",
+	"GreaterFullEqual":                "\u2267",
+	"GreaterGreater":                  "\u2AA2",
+	"GreaterLess":                     "\u2277",
+	"GreaterSlantEqual":               "\u2A7E",
+	"GreaterTilde":                    "\u2273",
+	"Gscr":                            "\U0001D4A2",
+	"Gt":                              "\u226B",
+	"HARDcy":                          "\u042A",
+	"Hacek":                           "\u02C7",
+	"Hat":                             "\u005E",
+	"Hcirc":                           "\u0124",
+	"Hfr":                             "\u210C",
+	"HilbertSpace":                    "\u210B",
+	"Hopf":                            "\u210D",
+	"HorizontalLine":                  "\u2500",
+	"Hscr":                            "\u210B",
+	"Hstrok":                          "\u0126",
+	"HumpDownHump":                    "\u224E",
+	"HumpEqual":                       "\u224F",
+	"IEcy":                            "\u0415",
+	"IJlig":                           "\u0132",
+	"IOcy":                            "\u0401",
+	"Iacute":                          "\u00CD",
+	"Icirc":                           "\u00CE",
+	"Icy":                             "\u0418",
+	"Idot":                            "\u0130",
+	"Ifr":                             "\u2111",
+	"Igrave":                          "\u00CC",
+	"Im":                              "\u2111",
+	"Imacr":                           "\u012A",
+	"ImaginaryI":                      "\u2148",
+	"Implies":                         "\u21D2",
+	"Int":                             "\u222C",
+	"Integral":                        "\u222B",
+	"Intersection":                    "\u22C2",
+	"InvisibleComma":                  "\u2063",
+	"InvisibleTimes":                  "\u2062",
+	"Iogon":                           "\u012E",
+	"Iopf":                            "\U0001D540",
+	"Iota":                            "\u0399",
+	"Iscr":                            "\u2110",
+	"Itilde":                          "\u0128",
+	"Iukcy":                           "\u0406",
+	"Iuml":                            "\u00CF",
+	"Jcirc":                           "\u0134",
+	"Jcy":                             "\u0419",
+	"Jfr":                             "\U0001D50D",
+	"Jopf":                            "\U0001D541",
+	"Jscr":                            "\U0001D4A5",
+	"Jsercy":                          "\u0408",
+	"Jukcy":                           "\u0404",
+	"KHcy":                            "\u0425",
+	"KJcy":                            "\u040C",
+	"Kappa":                           "\u039A",
+	"Kcedil":                          "\u0136",
+	"Kcy":                             "\u041A",
+	"Kfr":                             "\U0001D50E",
+	"Kopf":                            "\U0001D542",
+	"Kscr":                            "\U0001D4A6",
+	"LJcy":                            "\u0409",
+	"LT":                              "\u003C",
+	"Lacute":                          "\u0139",
+	"Lambda":                          "\u039B",
+	"Lang":                            "\u27EA",
+	"Laplacetrf":                      "\u2112",
+	"Larr":                            "\u219E",
+	"Lcaron":                          "\u013D",
+	"Lcedil":                          "\u013B",
+	"Lcy":                             "\u041B",
+	"LeftAngleBracket":                "\u27E8",
+	"LeftArrow":                       "\u2190",
+	"LeftArrowBar":                    "\u21E4",
+	"LeftArrowRightArrow":             "\u21C6",
+	"LeftCeiling":                     "\u2308",
+	"LeftDoubleBracket":               "\u27E6",
+	"LeftDownTeeVector":               "\u2961",
+	"LeftDownVector":                  "\u21C3",
+	"LeftDownVectorBar":               "\u2959",
+	"LeftFloor":                       "\u230A",
+	"LeftRightArrow":                  "\u2194",
+	"LeftRightVector":                 "\u294E",
+	"LeftTee":                         "\u22A3",
+	"LeftTeeArrow":                    "\u21A4",
+	"LeftTeeVector":                   "\u295A",
+	"LeftTriangle":                    "\u22B2",
+	"LeftTriangleBar":                 "\u29CF",
+	"LeftTriangleEqual":               "\u22B4",
+	"LeftUpDownVector":                "\u2951",
+	"LeftUpTeeVector":                 "\u2960",
+	"LeftUpVector":                    "\u21BF",
+	"LeftUpVectorBar":                 "\u2958",
+	"LeftVector":                      "\u21BC",
+	"LeftVectorBar":                   "\u2952",
+	"Leftarrow":                       "\u21D0",
+	"Leftrightarrow":                  "\u21D4",
+	"LessEqualGreater":                "\u22DA",
+	"LessFullEqual":                   "\u2266",
+	"LessGreater":                     "\u2276",
+	"LessLess":                        "\u2AA1",
+	"LessSlantEqual":                  "\u2A7D",
+	"LessTilde":                       "\u2272",
+	"Lfr":                             "\U0001D50F",
+	"Ll":                              "\u22D8",
+	"Lleftarrow":                      "\u21DA",
+	"Lmidot":                          "\u013F",
+	"LongLeftArrow":                   "\u27F5",
+	"LongLeftRightArrow":              "\u27F7",
+	"LongRightArrow":                  "\u27F6",
+	"Longleftarrow":                   "\u27F8",
+	"Longleftrightarrow":              "\u27FA",
+	"Longrightarrow":                  "\u27F9",
+	"Lopf":                            "\U0001D543",
+	"LowerLeftArrow":                  "\u2199",
+	"LowerRightArrow":                 "\u2198",
+	"Lscr":                            "\u2112",
+	"Lsh":                             "\u21B0",
+	"Lstrok":                          "\u0141",
+	"Lt":                              "\u226A",
+	"Map":                             "\u2905",
+	"Mcy":                             "\u041C",
+	"MediumSpace":                     "\u205F",
+	"Mellintrf":                       "\u2133",
+	"Mfr":                             "\U0001D510",
+	"MinusPlus":                       "\u2213",
+	"Mopf":                            "\U0001D544",
+	"Mscr":                            "\u2133",
+	"Mu":                              "\u039C",
+	"NJcy":                            "\u040A",
+	"Nacute":                          "\u0143",
+	"Ncaron":                          "\u0147",
+	"Ncedil":                          "\u0145",
+	"Ncy":                             "\u041D",
+	"NegativeMediumSpace":             "\u200B",
+	"NegativeThickSpace":              "\u200B",
+	"NegativeThinSpace":               "\u200B",
+	"NegativeVeryThinSpace":           "\u200B",
+	"NestedGreaterGreater":            "\u226B",
+	"NestedLessLess":                  "\u226A",
+	"NewLine":                         "\u000A",
+	"Nfr":                             "\U0001D511",
+	"NoBreak":                         "\u2060",
+	"NonBreakingSpace":                "\u00A0",
+	"Nopf":                            "\u2115",
+	"Not":                             "\u2AEC",
+	"NotCongruent":                    "\u2262",
+	"NotCupCap":                       "\u226D",
+	"NotDoubleVerticalBar":            "\u2226",
+	"NotElement":                      "\u2209",
+	"NotEqual":                        "\u2260",
+	"NotEqualTilde":                   "\u2242\u0338",
+	"NotExists":                       "\u2204",
+	"NotGreater":                      "\u226F",
+	"NotGreaterEqual":                 "\u2271",
+	"NotGreaterFullEqual":             "\u2267\u0338",
+	"NotGreaterGreater":               "\u226B\u0338",
+	"NotGreaterLess":                  "\u2279",
+	"NotGreaterSlantEqual":            "\u2A7E\u0338",
+	"NotGreaterTilde":                 "\u2275",
+	"NotHumpDownHump":                 "\u224E\u0338",
+	"NotHumpEqual":                    "\u224F\u0338",
+	"NotLeftTriangle":                 "\u22EA",
+	"NotLeftTriangleBar":              "\u29CF\u0338",
+	"NotLeftTriangleEqual":            "\u22EC",
+	"NotLess":                         "\u226E",
+	"NotLessEqual":                    "\u2270",
+	"NotLessGreater":                  "\u2278",
+	"NotLessLess":                     "\u226A\u0338",
+	"NotLessSlantEqual":               "\u2A7D\u0338",
+	"NotLessTilde":                    "\u2274",
+	"NotNestedGreaterGreater":         "\u2AA2\u0338",
+	"NotNestedLessLess":               "\u2AA1\u0338",
+	"NotPrecedes":                     "\u2280",
+	"NotPrecedesEqual":                "\u2AAF\u0338",
+	"NotPrecedesSlantEqual":           "\u22E0",
+	"NotReverseElement":               "\u220C",
+	"NotRightTriangle":                "\u22EB",
+	"NotRightTriangleBar":             "\u29D0\u0338",
+	"NotRightTriangleEqual":           "\u22ED",
+	"NotSquareSubset":                 "\u228F\u0338",
+	"NotSquareSubsetEqual":            "\u22E2",
+	"NotSquareSuperset":               "\u2290\u0338",
+	"NotSquareSupersetEqual":          "\u22E3",
+	"NotSubset":                       "\u2282\u20D2",
+	"NotSubsetEqual":                  "\u2288",
+	"NotSucceeds":                     "\u2281",
+	"NotSucceedsEqual":                "\u2AB0\u0338",
+	"NotSucceedsSlantEqual":           "\u22E1",
+	"NotSucceedsTilde":                "\u227F\u0338",
+	"NotSuperset":                     "\u2283\u20D2",
+	"NotSupersetEqual":                "\u2289",
+	"NotTilde":                        "\u2241",
+	"NotTildeEqual":                   "\u2244",
+	"NotTildeFullEqual":               "\u2247",
+	"NotTildeTilde":                   "\u2249",
+	"NotVerticalBar":                  "\u2224",
+	"Nscr":                            "\U0001D4A9",
+	"Ntilde":                          "\u00D1",
+	"Nu":                              "\u039D",
+	"OElig":                           "\u0152",
+	"Oacute":                          "\u00D3",
+	"Ocirc":                           "\u00D4",
+	"Ocy":                             "\u041E",
+	"Odblac":                          "\u0150",
+	"Ofr":                             "\U0001D512",
+	"Ograve":                          "\u00D2",
+	"Omacr":                           "\u014C",
+	"Omega":                           "\u03A9",
+	"Omicron":                         "\u039F",
+	"Oopf":                            "\U0001D546",
+	"OpenCurlyDoubleQuote":            "\u201C",
+	"OpenCurlyQuote":                  "\u2018",
+	"Or":                              "\u2A54",
+	"Oscr":                            "\U0001D4AA",
+	"Oslash":                          "\u00D8",
+	"Otilde":                          "\u00D5",
+	"Otimes":                          "\u2A37",
+	"Ouml":                            "\u00D6",
+	"OverBar":                         "\u203E",
+	"OverBrace":                       "\u23DE",
+	"OverBracket":                     "\u23B4",
+	"OverParenthesis":                 "\u23DC",
+	"PartialD":                        "\u2202",
+	"Pcy":                             "\u041F",
+	"Pfr":                             "\U0001D513",
+	"Phi":                             "\u03A6",
+	"Pi":                              "\u03A0",
+	"PlusMinus":                       "\u00B1",
+	"Poincareplane":                   "\u210C",
+	"Popf":                            "\u2119",
+	"Pr":                              "\u2ABB",
+	"Precedes":                        "\u227A",
+	"PrecedesEqual":                   "\u2AAF",
+	"PrecedesSlantEqual":              "\u227C",
+	"PrecedesTilde":                   "\u227E",
+	"Prime":                           "\u2033",
+	"Product":                         "\u220F",
+	"Proportion":                      "\u2237",
+	"Proportional":                    "\u221D",
+	"Pscr":                            "\U0001D4AB",
+	"Psi":                             "\u03A8",
+	"QUOT":                            "\u0022",
+	"Qfr":                             "\U0001D514",
+	"Qopf":                            "\u211A",
+	"Qscr":                            "\U0001D4AC",
+	"RBarr":                           "\u2910",
+	"REG":                             "\u00AE",
+	"Racute":                          "\u0154",
+	"Rang":                            "\u27EB",
+	"Rarr":                            "\u21A0",
+	"Rarrtl":                          "\u2916",
+	"Rcaron":                          "\u0158",
+	"Rcedil":                          "\u0156",
+	"Rcy":                             "\u0420",
+	"Re":                              "\u211C",
+	"ReverseElement":                  "\u220B",
+	"ReverseEquilibrium":              "\u21CB",
+	"ReverseUpEquilibrium":            "\u296F",
+	"Rfr":                             "\u211C",
+	"Rho":                             "\u03A1",
+	"RightAngleBracket":               "\u27E9",
+	"RightArrow":                      "\u2192",
+	"RightArrowBar":                   "\u21E5",
+	"RightArrowLeftArrow":             "\u21C4",
+	"RightCeiling":                    "\u2309",
+	"RightDoubleBracket":              "\u27E7",
+	"RightDownTeeVector":              "\u295D",
+	"RightDownVector":                 "\u21C2",
+	"RightDownVectorBar":              "\u2955",
+	"RightFloor":                      "\u230B",
+	"RightTee":                        "\u22A2",
+	"RightTeeArrow":                   "\u21A6",
+	"RightTeeVector":                  "\u295B",
+	"RightTriangle":                   "\u22B3",
+	"RightTriangleBar":                "\u29D0",
+	"RightTriangleEqual":              "\u22B5",
+	"RightUpDownVector":               "\u294F",
+	"RightUpTeeVector":                "\u295C",
+	"RightUpVector":                   "\u21BE",
+	"RightUpVectorBar":                "\u2954",
+	"RightVector":                     "\u21C0",
+	"RightVectorBar":                  "\u2953",
+	"Rightarrow":                      "\u21D2",
+	"Ropf":                            "\u211D",
+	"RoundImplies":                    "\u2970",
+	"Rrightarrow":                     "\u21DB",
+	"Rscr":                            "\u211B",
+	"Rsh":                             "\u21B1",
+	"RuleDelayed":                     "\u29F4",
+	"SHCHcy":                          "\u0429",
+	"SHcy":                            "\u0428",
+	"SOFTcy":                          "\u042C",
+	"Sacute":                          "\u015A",
+	"Sc":                              "\u2ABC",
+	"Scaron":                          "\u0160",
+	"Scedil":                          "\u015E",
+	"Scirc":                           "\u015C",
+	"Scy":                             "\u0421",
+	"Sfr":                             "\U0001D516",
+	"ShortDownArrow":                  "\u2193",
+	"ShortLeftArrow":                  "\u2190",
+	"ShortRightArrow":                 "\u2192",
+	"ShortUpArrow":                    "\u2191",
+	"Sigma":                           "\u03A3",
+	"SmallCircle":                     "\u2218",
+	"Sopf":                            "\U0001D54A",
+	"Sqrt":                            "\u221A",
+	"Square":                          "\u25A1",
+	"SquareIntersection":              "\u2293",
+	"SquareSubset":                    "\u228F",
+	"SquareSubsetEqual":               "\u2291",
+	"SquareSuperset":                  "\u2290",
+	"SquareSupersetEqual":             "\u2292",
+	"SquareUnion":                     "\u2294",
+	"Sscr":                            "\U0001D4AE",
+	"Star":                            "\u22C6",
+	"Sub":                             "\u22D0",
+	"Subset":                          "\u22D0",
+	"SubsetEqual":                     "\u2286",
+	"Succeeds":                        "\u227B",
+	"SucceedsEqual":                   "\u2AB0",
+	"SucceedsSlantEqual":              "\u227D",
+	"SucceedsTilde":                   "\u227F",
+	"SuchThat":                        "\u220B",
+	"Sum":                             "\u2211",
+	"Sup":                             "\u22D1",
+	"Superset":                        "\u2283",
+	"SupersetEqual":                   "\u2287",
+	"Supset":                          "\u22D1",
+	"THORN":                           "\u00DE",
+	"TRADE":                           "\u2122",
+	"TSHcy":                           "\u040B",
+	"TScy":                            "\u0426",
+	"Tab":                             "\u0009",
+	"Tau":                             "\u03A4",
+	"Tcaron":                          "\u0164",
+	"Tcedil":                          "\u0162",
+	"Tcy":                             "\u0422",
+	"Tfr":                             "\U0001D517",
+	"Therefore":                       "\u2234",
+	"Theta":                           "\u0398",
+	"ThickSpace":                      "\u205F\u200A",
+	"ThinSpace":                       "\u2009",
+	"Tilde":                           "\u223C",
+	"TildeEqual":                      "\u2243",
+	"TildeFullEqual":                  "\u2245",
+	"TildeTilde":                      "\u2248",
+	"Topf":                            "\U0001D54B",
+	"TripleDot":                       "\u20DB",
+	"Tscr":                            "\U0001D4AF",
+	"Tstrok":                          "\u0166",
+	"Uacute":                          "\u00DA",
+	"Uarr":                            "\u219F",
+	"Uarrocir":                        "\u2949",
+	"Ubrcy":                           "\u040E",
+	"Ubreve":                          "\u016C",
+	"Ucirc":                           "\u00DB",
+	"Ucy":                             "\u0423",
+	"Udblac":                          "\u0170",
+	"Ufr":                             "\U0001D518",
+	"Ugrave":                          "\u00D9",
+	"Umacr":                           "\u016A",
+	"UnderBar":                        "\u005F",
+	"UnderBrace":                      "\u23DF",
+	"UnderBracket":                    "\u23B5",
+	"UnderParenthesis":                "\u23DD",
+	"Union":                           "\u22C3",
+	"UnionPlus":                       "\u228E",
+	"Uogon":                           "\u0172",
+	"Uopf":                            "\U0001D54C",
+	"UpArrow":                         "\u2191",
+	"UpArrowBar":                      "\u2912",
+	"UpArrowDownArrow":                "\u21C5",
+	"UpDownArrow":                     "\u2195",
+	"UpEquilibrium":                   "\u296E",
+	"UpTee":                           "\u22A5",
+	"UpTeeArrow":                      "\u21A5",
+	"Uparrow":                         "\u21D1",
+	"Updownarrow":                     "\u21D5",
+	"UpperLeftArrow":                  "\u2196",
+	"UpperRightArrow":                 "\u2197",
+	"Upsi":                            "\u03D2",
+	"Upsilon":                         "\u03A5",
+	"Uring":                           "\u016E",
+	"Uscr":                            "\U0001D4B0",
+	"Utilde":                          "\u0168",
+	"Uuml":                            "\u00DC",
+	"VDash":                           "\u22AB",
+	"Vbar":                            "\u2AEB",
+	"Vcy":                             "\u0412",
+	"Vdash":                           "\u22A9",
+	"Vdashl":                          "\u2AE6",
+	"Vee":                             "\u22C1",
+	"Verbar":                          "\u2016",
+	"Vert":                            "\u2016",
+	"VerticalBar":                     "\u2223",
+	"VerticalLine":                    "\u007C",
+	"VerticalSeparator":               "\u2758",
+	"VerticalTilde":                   "\u2240",
+	"VeryThinSpace":                   "\u200A",
+	"Vfr":                             "\U0001D519",
+	"Vopf":                            "\U0001D54D",
+	"Vscr":                            "\U0001D4B1",
+	"Vvdash":                          "\u22AA",
+	"Wcirc":                           "\u0174",
+	"Wedge":                           "\u22C0",
+	"Wfr":                             "\U0001D51A",
+	"Wopf":                            "\U0001D54E",
+	"Wscr":                            "\U0001D4B2",
+	"Xfr":                             "\U0001D51B",
+	"Xi":                              "\u039E",
+	"Xopf":                            "\U0001D54F",
+	"Xscr":                            "\U0001D4B3",
+	"YAcy":                            "\u042F",
+	"YIcy":                            "\u0407",
+	"YUcy":                            "\u042E",
+	"Yacute":                          "\u00DD",
+	"Ycirc":                           "\u0176",
+	"Ycy":                             "\u042B",
+	"Yfr":                             "\U0001D51C",
+	"Yopf":                            "\U0001D550",
+	"Yscr":                            "\U0001D4B4",
+	"Yuml":                            "\u0178",
+	"ZHcy":                            "\u0416",
+	"Zacute":                          "\u0179",
+	"Zcaron":                          "\u017D",
+	"Zcy":                             "\u0417",
+	"Zdot":                            "\u017B",
+	"ZeroWidthSpace":                  "\u200B",
+	"Zeta":                            "\u0396",
+	"Zfr":                             "\u2128",
+	"Zopf":                            "\u2124",
+	"Zscr":                            "\U0001D4B5",
+	"aacute":                          "\u00E1",
+	"abreve":                          "\u0103",
+	"ac":                              "\u223E",
+	"acE":                             "\u223E\u0333",
+	"acd":                             "\u223F",
+	"acirc":                           "\u00E2",
+	"acute":                           "\u00B4",
+	"acy":                             "\u0430",
+	"aelig":                           "\u00E6",
+	"af":                              "\u2061",
+	"afr":                             "\U0001D51E",
+	"agrave":                          "\u00E0",
+	"alefsym":                         "\u2135",
+	"aleph":                           "\u2135",
+	"alpha":                           "\u03B1",
+	"amacr":                           "\u0101",
+	"amalg":                           "\u2A3F",
+	"amp":                             "\u0026",
+	"and":                             "\u2227",
+	"andand":                          "\u2A55",
+	"andd":                            "\u2A5C",
+	"andslope":                        "\u2A58",
+	"andv":                            "\u2A5A",
+	"ang":                             "\u2220",
+	"ange":                            "\u29A4",
+	"angle":                           "\u2220",
+	"angmsd":                          "\u2221",
+	"angmsdaa":                        "\u29A8",
+	"angmsdab":                        "\u29A9",
+	"angmsdac":                        "\u29AA",
+	"angmsdad":                        "\u29AB",
+	"angmsdae":                        "\u29AC",
+	"angmsdaf":                        "\u29AD",
+	"angmsdag":                        "\u29AE",
+	"angmsdah":                        "\u29AF",
+	"angrt":                           "\u221F",
+	"angrtvb":                         "\u22BE",
+	"angrtvbd":                        "\u299D",
+	"angsph":                          "\u2222",
+	"angst":                           "\u00C5",
+	"angzarr":                         "\u237C",
+	"aogon":                           "\u0105",
+	"aopf":                            "\U0001D552",
+	"ap":                              "\u2248",
+	"apE":                             "\u2A70",
+	"apacir":                          "\u2A6F",
+	"ape":                             "\u224A",
+	"apid":                            "\u224B",
+	"apos":                            "\u0027",
+	"approx":                          "\u2248",
+	"approxeq":                        "\u224A",
+	"aring":                           "\u00E5",
+	"ascr":                            "\U0001D4B6",
+	"ast":                             "\u002A",
+	"asymp":                           "\u2248",
+	"asympeq":                         "\u224D",
+	"atilde":                          "\u00E3",
+	"auml":                            "\u00E4",
+	"awconint":                        "\u2233",
+	"awint":                           "\u2A11",
+	"bNot":                            "\u2AED",
+	"backcong":                        "\u224C",
+	"backepsilon":                     "\u03F6",
+	"backprime":                       "\u2035",
+	"backsim":                         "\u223D",
+	"backsimeq":                       "\u22CD",
+	"barvee":                          "\u22BD",
+	"barwed":                          "\u2305",
+	"barwedge":                        "\u2305",
+	"bbrk":                            "\u23B5",
+	"bbrktbrk":                        "\u23B6",
+	"bcong":                           "\u224C",
+	"bcy":                             "\u0431",
+	"bdquo":                           "\u201E",
+	"becaus":                          "\u2235",
+	"because":                         "\u2235",
+	"bemptyv":                         "\u29B0",
+	"bepsi":                           "\u03F6",
+	"bernou":                          "\u212C",
+	"beta":                            "\u03B2",
+	"beth":                            "\u2136",
+	"between":                         "\u226C",
+	"bfr":                             "\U0001D51F",
+	"bigcap":                          "\u22C2",
+	"bigcirc":                         "\u25EF",
+	"bigcup":                          "\u22C3",
+	"bigodot":                         "\u2A00",
+	"bigoplus":                        "\u2A01",
+	"bigotimes":                       "\u2A02",
+	"bigsqcup":                        "\u2A06",
+	"bigstar":                         "\u2605",
+	"bigtriangledown":                 "\u25BD",
+	"bigtriangleup":                   "\u25B3",
+	"biguplus":                        "\u2A04",
+	"bigvee":                          "\u22C1",
+	"bigwedge":                        "\u22C0",
+	"bkarow":                          "\u290D",
+	"blacklozenge":                    "\u29EB",
+	"blacksquare":                     "\u25AA",
+	"blacktriangle":                   "\u25B4",
+	"blacktriangledown":               "\u25BE",
+	"blacktriangleleft":               "\u25C2",
+	"blacktriangleright":              "\u25B8",
+	"blank":                           "\u2423",
+	"blk12":                           "\u2592",
+	"blk14":                           "\u2591",
+	"blk34":                           "\u2593",
+	"block":                           "\u2588",
+	"bne":                             "\u003D\u20E5",
+	"bnequiv":                         "\u2261\u20E5",
+	"bnot":                            "\u2310",
+	"bopf":                            "\U0001D553",
+	"bot":                             "\u22A5",
+	"bottom":                          "\u22A5",
+	"bowtie":                          "\u22C8",
+	"boxDL":                           "\u2557",
+	"boxDR":                           "\u2554",
+	"boxDl":                           "\u2556",
+	"boxDr":                           "\u2553",
+	"boxH":                            "\u2550",
+	"boxHD":                           "\u2566",
+	"boxHU":                           "\u2569",
+	"boxHd":                           "\u2564",
+	"boxHu":                           "\u2567",
+	"boxUL":                           "\u255D",
+	"boxUR":                           "\u255A",
+	"boxUl":                           "\u255C",
+	"boxUr":                           "\u2559",
+	"boxV":                            "\u2551",
+	"boxVH":                           "\u256C",
+	"boxVL":                           "\u2563",
+	"boxVR":                           "\u2560",
+	"boxVh":                           "\u256B",
+	"boxVl":                           "\u2562",
+	"boxVr":                           "\u255F",
+	"boxbox":                          "\u29C9",
+	"boxdL":                           "\u2555",
+	"boxdR":                           "\u2552",
+	"boxdl":                           "\u2510",
+	"boxdr":                           "\u250C",
+	"boxh":                            "\u2500",
+	"boxhD":                           "\u2565",
+	"boxhU":                           "\u2568",
+	"boxhd":                           "\u252C",
+	"boxhu":                           "\u2534",
+	"boxminus":                        "\u229F",
+	"boxplus":                         "\u229E",
+	"boxtimes":                        "\u22A0",
+	"boxuL":                           "\u255B",
+	"boxuR":                           "\u2558",
+	"boxul":                           "\u2518",
+	"boxur":                           "\u2514",
+	"boxv":                            "\u2502",
+	"boxvH":                           "\u256A",
+	"boxvL":                           "\u2561",
+	"boxvR":                           "\u255E",
+	"boxvh":                           "\u253C",
+	"boxvl":                           "\u2524",
+	"boxvr":                           "\u251C",
+	"bprime":                          "\u2035",
+	"breve":                           "\u02D8",
+	"brvbar":                          "\u00A6",
+	"bscr":                            "\U0001D4B7",
+	"bsemi":                           "\u204F",
+	"bsim":                            "\u223D",
+	"bsime":                           "\u22CD",
+	"bsol":                            "\u005C",
+	"bsolb":                           "\u29C5",
+	"bsolhsub":                        "\u27C8",
+	"bull":                            "\u2022",
+	"bullet":                          "\u2022",
+	"bump":                            "\u224E",
+	"bumpE":                           "\u2AAE",
+	"bumpe":                           "\u224F",
+	"bumpeq":                          "\u224F",
+	"cacute":                          "\u0107",
+	"cap":                             "\u2229",
+	"capand":                          "\u2A44",
+	"capbrcup":                        "\u2A49",
+	"capcap":                          "\u2A4B",
+	"capcup":                          "\u2A47",
+	"capdot":                          "\u2A40",
+	"caps":                            "\u2229\uFE00",
+	"caret":                           "\u2041",
+	"caron":                           "\u02C7",
+	"ccaps":                           "\u2A4D",
+	"ccaron":                          "\u010D",
+	"ccedil":                          "\u00E7",
+	"ccirc":                           "\u0109",
+	"ccups":                           "\u2A4C",
+	"ccupssm":                         "\u2A50",
+	"cdot":                            "\u010B",
+	"cedil":                           "\u00B8",
+	"cemptyv":                         "\u29B2",
+	"cent":                            "\u00A2",
+	"centerdot":                       "\u00B7",
+	"cfr":                             "\U0001D520",
+	"chcy":                            "\u0447",
+	"check":                           "\u2713",
+	"checkmark":                       "\u2713",
+	"chi":                             "\u03C7",
+	"cir":                             "\u25CB",
+	"cirE":                            "\u29C3",
+	"circ":                            "\u02C6",
+	"circeq":                          "\u2257",
+	"circlearrowleft":                 "\u21BA",
+	"circlearrowright":                "\u21BB",
+	"circledR":                        "\u00AE",
+	"circledS":                        "\u24C8",
+	"circledast":                      "\u229B",
+	"circledcirc":                     "\u229A",
+	"circleddash":                     "\u229D",
+	"cire":                            "\u2257",
+	"cirfnint":                        "\u2A10",
+	"cirmid":                          "\u2AEF",
+	"cirscir":                         "\u29C2",
+	"clubs":                           "\u2663",
+	"clubsuit":                        "\u2663",
+	"colon":                           "\u003A",
+	"colone":                          "\u2254",
+	"coloneq":                         "\u2254",
+	"comma":                           "\u002C",
+	"commat":                          "\u0040",
+	"comp":                            "\u2201",
+	"compfn":                          "\u2218",
+	"complement":                      "\u2201",
+	"complexes":                       "\u2102",
+	"cong":                            "\u2245",
+	"congdot":                         "\u2A6D",
+	"conint":                          "\u222E",
+	"copf":                            "\U0001D554",
+	"coprod":                          "\u2210",
+	"copy":                            "\u00A9",
+	"copysr":                          "\u2117",
+	"crarr":                           "\u21B5",
+	"cross":                           "\u2717",
+	"cscr":                            "\U0001D4B8",
+	"csub":                            "\u2ACF",
+	"csube":                           "\u2AD1",
+	"csup":                            "\u2AD0",
+	"csupe":                           "\u2AD2",
+	"ctdot":                           "\u22EF",
+	"cudarrl":                         "\u2938",
+	"cudarrr":                         "\u2935",
+	"cuepr":                           "\u22DE",
+	"cuesc":                           "\u22DF",
+	"cularr":                          "\u21B6",
+	"cularrp":                         "\u293D",
+	"cup":                             "\u222A",
+	"cupbrcap":                        "\u2A48",
+	"cupcap":                          "\u2A46",
+	"cupcup":                          "\u2A4A",
+	"cupdot":                          "\u228D",
+	"cupor":                           "\u2A45",
+	"cups":                            "\u222A\uFE00",
+	"curarr":                          "\u21B7",
+	"curarrm":                         "\u293C",
+	"curlyeqprec":                     "\u22DE",
+	"curlyeqsucc":                     "\u22DF",
+	"curlyvee":                        "\u22CE",
+	"curlywedge":                      "\u22CF",
+	"curren":                          "\u00A4",
+	"curvearrowleft":                  "\u21B6",
+	"curvearrowright":                 "\u21B7",
+	"cuvee":                           "\u22CE",
+	"cuwed":                           "\u22CF",
+	"cwconint":                        "\u2232",
+	"cwint":                           "\u2231",
+	"cylcty":                          "\u232D",
+	"dArr":                            "\u21D3",
+	"dHar":                            "\u2965",
+	"dagger":                          "\u2020",
+	"daleth":                          "\u2138",
+	"darr":                            "\u2193",
+	"dash":                            "\u2010",
+	"dashv":                           "\u22A3",
+	"dbkarow":                         "\u290F",
+	"dblac":                           "\u02DD",
+	"dcaron":                          "\u010F",
+	"dcy":                             "\u0434",
+	"dd":                              "\u2146",
+	"ddagger":                         "\u2021",
+	"ddarr":                           "\u21CA",
+	"ddotseq":                         "\u2A77",
+	"deg":                             "\u00B0",
+	"delta":                           "\u03B4",
+	"demptyv":                         "\u29B1",
+	"dfisht":                          "\u297F",
+	"dfr":                             "\U0001D521",
+	"dharl":                           "\u21C3",
+	"dharr":                           "\u21C2",
+	"diam":                            "\u22C4",
+	"diamond":                         "\u22C4",
+	"diamondsuit":                     "\u2666",
+	"diams":                           "\u2666",
+	"die":                             "\u00A8",
+	"digamma":                         "\u03DD",
+	"disin":                           "\u22F2",
+	"div":                             "\u00F7",
+	"divide":                          "\u00F7",
+	"divideontimes":                   "\u22C7",
+	"divonx":                          "\u22C7",
+	"djcy":                            "\u0452",
+	"dlcorn":                          "\u231E",
+	"dlcrop":                          "\u230D",
+	"dollar":                          "\u0024",
+	"dopf":                            "\U0001D555",
+	"dot":                             "\u02D9",
+	"doteq":                           "\u2250",
+	"doteqdot":                        "\u2251",
+	"dotminus":                        "\u2238",
+	"dotplus":                         "\u2214",
+	"dotsquare":                       "\u22A1",
+	"doublebarwedge":                  "\u2306",
+	"downarrow":                       "\u2193",
+	"downdownarrows":                  "\u21CA",
+	"downharpoonleft":                 "\u21C3",
+	"downharpoonright":                "\u21C2",
+	"drbkarow":                        "\u2910",
+	"drcorn":                          "\u231F",
+	"drcrop":                          "\u230C",
+	"dscr":                            "\U0001D4B9",
+	"dscy":                            "\u0455",
+	"dsol":                            "\u29F6",
+	"dstrok":                          "\u0111",
+	"dtdot":                           "\u22F1",
+	"dtri":                            "\u25BF",
+	"dtrif":                           "\u25BE",
+	"duarr":                           "\u21F5",
+	"duhar":                           "\u296F",
+	"dwangle":                         "\u29A6",
+	"dzcy":                            "\u045F",
+	"dzigrarr":                        "\u27FF",
+	"eDDot":                           "\u2A77",
+	"eDot":                            "\u2251",
+	"eacute":                          "\u00E9",
+	"easter":                          "\u2A6E",
+	"ecaron":                          "\u011B",
+	"ecir":                            "\u2256",
+	"ecirc":                           "\u00EA",
+	"ecolon":                          "\u2255",
+	"ecy":                             "\u044D",
+	"edot":                            "\u0117",
+	"ee":                              "\u2147",
+	"efDot":                           "\u2252",
+	"efr":                             "\U0001D522",
+	"eg":                              "\u2A9A",
+	"egrave":                          "\u00E8",
+	"egs":                             "\u2A96",
+	"egsdot":                          "\u2A98",
+	"el":                              "\u2A99",
+	"elinters":                        "\u23E7",
+	"ell":                             "\u2113",
+	"els":                             "\u2A95",
+	"elsdot":                          "\u2A97",
+	"emacr":                           "\u0113",
+	"empty":                           "\u2205",
+	"emptyset":                        "\u2205",
+	"emptyv":                          "\u2205",
+	"emsp":                            "\u2003",
+	"emsp13":                          "\u2004",
+	"emsp14":                          "\u2005",
+	"eng":                             "\u014B",
+	"ensp":                            "\u2002",
+	"eogon":                           "\u0119",
+	"eopf":                            "\U0001D556",
+	"epar":                            "\u22D5",
+	"eparsl":                          "\u29E3",
+	"eplus":                           "\u2A71",
+	"epsi":                            "\u03B5",
+	"epsilon":                         "\u03B5",
+	"epsiv":                           "\u03F5",
+	"eqcirc":                          "\u2256",
+	"eqcolon":                         "\u2255",
+	"eqsim":                           "\u2242",
+	"eqslantgtr":                      "\u2A96",
+	"eqslantless":                     "\u2A95",
+	"equals":                          "\u003D",
+	"equest":                          "\u225F",
+	"equiv":                           "\u2261",
+	"equivDD":                         "\u2A78",
+	"eqvparsl":                        "\u29E5",
+	"erDot":                           "\u2253",
+	"erarr":                           "\u2971",
+	"escr":                            "\u212F",
+	"esdot":                           "\u2250",
+	"esim":                            "\u2242",
+	"eta":                             "\u03B7",
+	"eth":                             "\u00F0",
+	"euml":                            "\u00EB",
+	"euro":                            "\u20AC",
+	"excl":                            "\u0021",
+	"exist":                           "\u2203",
+	"expectation":                     "\u2130",
+	"exponentiale":                    "\u2147",
+	"fallingdotseq":                   "\u2252",
+	"fcy":                             "\u0444",
+	"female":                          "\u2640",
+	"ffilig":                          "\uFB03",
+	"fflig":                           "\uFB00",
+	"ffllig":                          "\uFB04",
+	"ffr":                             "\U0001D523",
+	"filig":                           "\uFB01",
+	"fjlig":                           "\u0066\u006A",
+	"flat":                            "\u266D",
+	"fllig":                           "\uFB02",
+	"fltns":                           "\u25B1",
+	"fnof":                            "\u0192",
+	"fopf":                            "\U0001D557",
+	"forall":                          "\u2200",
+	"fork":                            "\u22D4",
+	"forkv":                           "\u2AD9",
+	"fpartint":                        "\u2A0D",
+	"frac12":                          "\u00BD",
+	"frac13":                          "\u2153",
+	"frac14":                          "\u00BC",
+	"frac15":                          "\u2155",
+	"frac16":                          "\u2159",
+	"frac18":                          "\u215B",
+	"frac23":                          "\u2154",
+	"frac25":                          "\u2156",
+	"frac34":                          "\u00BE",
+	"frac35":                          "\u2157",
+	"frac38":                          "\u215C",
+	"frac45":                          "\u2158",
+	"frac56":                          "\u215A",
+	"frac58":                          "\u215D",
+	"frac78":                          "\u215E",
+	"frasl":                           "\u2044",
+	"frown":                           "\u2322",
+	"fscr":                            "\U0001D4BB",
+	"gE":                              "\u2267",
+	"gEl":                             "\u2A8C",
+	"gacute":                          "\u01F5",
+	"gamma":                           "\u03B3",
+	"gammad":                          "\u03DD",
+	"gap":                             "\u2A86",
+	"gbreve":                          "\u011F",
+	"gcirc":                           "\u011D",
+	"gcy":                             "\u0433",
+	"gdot":                            "\u0121",
+	"ge":                              "\u2265",
+	"gel":                             "\u22DB",
+	"geq":                             "\u2265",
+	"geqq":                            "\u2267",
+	"geqslant":                        "\u2A7E",
+	"ges":                             "\u2A7E",
+	"gescc":                           "\u2AA9",
+	"gesdot":                          "\u2A80",
+	"gesdoto":                         "\u2A82",
+	"gesdotol":                        "\u2A84",
+	"gesl":                            "\u22DB\uFE00",
+	"gesles":                          "\u2A94",
+	"gfr":                             "\U0001D524",
+	"gg":                              "\u226B",
+	"ggg":                             "\u22D9",
+	"gimel":                           "\u2137",
+	"gjcy":                            "\u0453",
+	"gl":                              "\u2277",
+	"glE":                             "\u2A92",
+	"gla":                             "\u2AA5",
+	"glj":                             "\u2AA4",
+	"gnE":                             "\u2269",
+	"gnap":                            "\u2A8A",
+	"gnapprox":                        "\u2A8A",
+	"gne":                             "\u2A88",
+	"gneq":                            "\u2A88",
+	"gneqq":                           "\u2269",
+	"gnsim":                           "\u22E7",
+	"gopf":                            "\U0001D558",
+	"grave":                           "\u0060",
+	"gscr":                            "\u210A",
+	"gsim":                            "\u2273",
+	"gsime":                           "\u2A8E",
+	"gsiml":                           "\u2A90",
+	"gt":                              "\u003E",
+	"gtcc":                            "\u2AA7",
+	"gtcir":                           "\u2A7A",
+	"gtdot":                           "\u22D7",
+	"gtlPar":                          "\u2995",
+	"gtquest":                         "\u2A7C",
+	"gtrapprox":                       "\u2A86",
+	"gtrarr":                          "\u2978",
+	"gtrdot":                          "\u22D7",
+	"gtreqless":                       "\u22DB",
+	"gtreqqless":                      "\u2A8C",
+	"gtrless":                         "\u2277",
+	"gtrsim":                          "\u2273",
+	"gvertneqq":                       "\u2269\uFE00",
+	"gvnE":                            "\u2269\uFE00",
+	"hArr":                            "\u21D4",
+	"hairsp":                          "\u200A",
+	"half":                            "\u00BD",
+	"hamilt":                          "\u210B",
+	"hardcy":                          "\u044A",
+	"harr":                            "\u2194",
+	"harrcir":                         "\u2948",
+	"harrw":                           "\u21AD",
+	"hbar":                            "\u210F",
+	"hcirc":                           "\u0125",
+	"hearts":                          "\u2665",
+	"heartsuit":                       "\u2665",
+	"hellip":                          "\u2026",
+	"hercon":                          "\u22B9",
+	"hfr":                             "\U0001D525",
+	"hksearow":                        "\u2925",
+	"hkswarow":                        "\u2926",
+	"hoarr":                           "\u21FF",
+	"homtht":                          "\u223B",
+	"hookleftarrow":                   "\u21A9",
+	"hookrightarrow":                  "\u21AA",
+	"hopf":                            "\U0001D559",
+	"horbar":                          "\u2015",
+	"hscr":                            "\U0001D4BD",
+	"hslash":                          "\u210F",
+	"hstrok":                          "\u0127",
+	"hybull":                          "\u2043",
+	"hyphen":                          "\u2010",
+	"iacute":                          "\u00ED",
+	"ic":                              "\u2063",
+	"icirc":                           "\u00EE",
+	"icy":                             "\u0438",
+	"iecy":                            "\u0435",
+	"iexcl":                           "\u00A1",
+	"iff":                             "\u21D4",
+	"ifr":                             "\U0001D526",
+	"igrave":                          "\u00EC",
+	"ii":                              "\u2148",
+	"iiiint":                          "\u2A0C",
+	"iiint":                           "\u222D",
+	"iinfin":                          "\u29DC",
+	"iiota":                           "\u2129",
+	"ijlig":                           "\u0133",
+	"imacr":                           "\u012B",
+	"image":                           "\u2111",
+	"imagline":                        "\u2110",
+	"imagpart":                        "\u2111",
+	"imath":                           "\u0131",
+	"imof":                            "\u22B7",
+	"imped":                           "\u01B5",
+	"in":                              "\u2208",
+	"incare":                          "\u2105",
+	"infin":                           "\u221E",
+	"infintie":                        "\u29DD",
+	"inodot":                          "\u0131",
+	"int":                             "\u222B",
+	"intcal":                          "\u22BA",
+	"integers":                        "\u2124",
+	"intercal":                        "\u22BA",
+	"intlarhk":                        "\u2A17",
+	"intprod":                         "\u2A3C",
+	"iocy":                            "\u0451",
+	"iogon":                           "\u012F",
+	"iopf":                            "\U0001D55A",
+	"iota":                            "\u03B9",
+	"iprod":                           "\u2A3C",
+	"iquest":                          "\u00BF",
+	"iscr":                            "\U0001D4BE",
+	"isin":                            "\u2208",
+	"isinE":                           "\u22F9",
+	"isindot":                         "\u22F5",
+	"isins":                           "\u22F4",
+	"isinsv":                          "\u22F3",
+	"isinv":                           "\u2208",
+	"it":                              "\u2062",
+	"itilde":                          "\u0129",
+	"iukcy":                           "\u0456",
+	"iuml":                            "\u00EF",
+	"jcirc":                           "\u0135",
+	"jcy":                             "\u0439",
+	"jfr":                             "\U0001D527",
+	"jmath":                           "\u0237",
+	"jopf":                            "\U0001D55B",
+	"jscr":                            "\U0001D4BF",
+	"jsercy":                          "\u0458",
+	"jukcy":                           "\u0454",
+	"kappa":                           "\u03BA",
+	"kappav":                          "\u03F0",
+	"kcedil":                          "\u0137",
+	"kcy":                             "\u043A",
+	"kfr":                             "\U0001D528",
+	"kgreen":                          "\u0138",
+	"khcy":                            "\u0445",
+	"kjcy":                            "\u045C",
+	"kopf":                            "\U0001D55C",
+	"kscr":                            "\U0001D4C0",
+	"lAarr":                           "\u21DA",
+	"lArr":                            "\u21D0",
+	"lAtail":                          "\u291B",
+	"lBarr":                           "\u290E",
+	"lE":                              "\u2266",
+	"lEg":                             "\u2A8B",
+	"lHar":                            "\u2962",
+	"lacute":                          "\u013A",
+	"laemptyv":                        "\u29B4",
+	"lagran":                          "\u2112",
+	"lambda":                          "\u03BB",
+	"lang":                            "\u27E8",
+	"langd":                           "\u2991",
+	"langle":                          "\u27E8",
+	"lap":                             "\u2A85",
+	"laquo":                           "\u00AB",
+	"larr":                            "\u2190",
+	"larrb":                           "\u21E4",
+	"larrbfs":                         "\u291F",
+	"larrfs":                          "\u291D",
+	"larrhk":                          "\u21A9",
+	"larrlp":                          "\u21AB",
+	"larrpl":                          "\u2939",
+	"larrsim":                         "\u2973",
+	"larrtl":                          "\u21A2",
+	"lat":                             "\u2AAB",
+	"latail":                          "\u2919",
+	"late":                            "\u2AAD",
+	"lates":                           "\u2AAD\uFE00",
+	"lbarr":                           "\u290C",
+	"lbbrk":                           "\u2772",
+	"lbrace":                          "\u007B",
+	"lbrack":                          "\u005B",
+	"lbrke":                           "\u298B",
+	"lbrksld":                         "\u298F",
+	"lbrkslu":                         "\u298D",
+	"lcaron":                          "\u013E",
+	"lcedil":                          "\u013C",
+	"lceil":                           "\u2308",
+	"lcub":                            "\u007B",
+	"lcy":                             "\u043B",
+	"ldca":                            "\u2936",
+	"ldquo":                           "\u201C",
+	"ldquor":                          "\u201E",
+	"ldrdhar":                         "\u2967",
+	"ldrushar":                        "\u294B",
+	"ldsh":                            "\u21B2",
+	"le":                              "\u2264",
+	"leftarrow":                       "\u2190",
+	"leftarrowtail":                   "\u21A2",
+	"leftharpoondown":                 "\u21BD",
+	"leftharpoonup":                   "\u21BC",
+	"leftleftarrows":                  "\u21C7",
+	"leftrightarrow":                  "\u2194",
+	"leftrightarrows":                 "\u21C6",
+	"leftrightharpoons":               "\u21CB",
+	"leftrightsquigarrow":             "\u21AD",
+	"leftthreetimes":                  "\u22CB",
+	"leg":                             "\u22DA",
+	"leq":                             "\u2264",
+	"leqq":                            "\u2266",
+	"leqslant":                        "\u2A7D",
+	"les":                             "\u2A7D",
+	"lescc":                           "\u2AA8",
+	"lesdot":                          "\u2A7F",
+	"lesdoto":                         "\u2A81",
+	"lesdotor":                        "\u2A83",
+	"lesg":                            "\u22DA\uFE00",
+	"lesges":                          "\u2A93",
+	"lessapprox":                      "\u2A85",
+	"lessdot":                         "\u22D6",
+	"lesseqgtr":                       "\u22DA",
+	"lesseqqgtr":                      "\u2A8B",
+	"lessgtr":                         "\u2276",
+	"lesssim":                         "\u2272",
+	"lfisht":                          "\u297C",
+	"lfloor":                          "\u230A",
+	"lfr":                             "\U0001D529",
+	"lg":                              "\u2276",
+	"lgE":                             "\u2A91",
+	"lhard":                           "\u21BD",
+	"lharu":                           "\u21BC",
+	"lharul":                          "\u296A",
+	"lhblk":                           "\u2584",
+	"ljcy":                            "\u0459",
+	"ll":                              "\u226A",
+	"llarr":                           "\u21C7",
+	"llcorner":                        "\u231E",
+	"llhard":                          "\u296B",
+	"lltri":                           "\u25FA",
+	"lmidot":                          "\u0140",
+	"lmoust":                          "\u23B0",
+	"lmoustache":                      "\u23B0",
+	"lnE":                             "\u2268",
+	"lnap":                            "\u2A89",
+	"lnapprox":                        "\u2A89",
+	"lne":                             "\u2A87",
+	"lneq":                            "\u2A87",
+	"lneqq":                           "\u2268",
+	"lnsim":                           "\u22E6",
+	"loang":                           "\u27EC",
+	"loarr":                           "\u21FD",
+	"lobrk":                           "\u27E6",
+	"longleftarrow":                   "\u27F5",
+	"longleftrightarrow":              "\u27F7",
+	"longmapsto":                      "\u27FC",
+	"longrightarrow":                  "\u27F6",
+	"looparrowleft":                   "\u21AB",
+	"looparrowright":                  "\u21AC",
+	"lopar":                           "\u2985",
+	"lopf":                            "\U0001D55D",
+	"loplus":                          "\u2A2D",
+	"lotimes":                         "\u2A34",
+	"lowast":                          "\u2217",
+	"lowbar":                          "\u005F",
+	"loz":                             "\u25CA",
+	"lozenge":                         "\u25CA",
+	"lozf":                            "\u29EB",
+	"lpar":                            "\u0028",
+	"lparlt":                          "\u2993",
+	"lrarr":                           "\u21C6",
+	"lrcorner":                        "\u231F",
+	"lrhar":                           "\u21CB",
+	"lrhard":                          "\u296D",
+	"lrm":                             "\u200E",
+	"lrtri":                           "\u22BF",
+	"lsaquo":                          "\u2039",
+	"lscr":                            "\U0001D4C1",
+	"lsh":                             "\u21B0",
+	"lsim":                            "\u2272",
+	"lsime":                           "\u2A8D",
+	"lsimg":                           "\u2A8F",
+	"lsqb":                            "\u005B",
+	"lsquo":                           "\u2018",
+	"lsquor":                          "\u201A",
+	"lstrok":                          "\u0142",
+	"lt":                              "\u003C",
+	"ltcc":                            "\u2AA6",
+	"ltcir":                           "\u2A79",
+	"ltdot":                           "\u22D6",
+	"lthree":                          "\u22CB",
+	"ltimes":                          "\u22C9",
+	"ltlarr":                          "\u2976",
+	"ltquest":                         "\u2A7B",
+	"ltrPar":                          "\u2996",
+	"ltri":                            "\u25C3",
+	"ltrie":                           "\u22B4",
+	"ltrif":                           "\u25C2",
+	"lurdshar":                        "\u294A",
+	"luruhar":                         "\u2966",
+	"lvertneqq":                       "\u2268\uFE00",
+	"lvnE":                            "\u2268\uFE00",
+	"mDDot":                           "\u223A",
+	"macr":                            "\u00AF",
+	"male":                            "\u2642",
+	"malt":                            "\u2720",
+	"maltese":                         "\u2720",
+	"map":                             "\u21A6",
+	"mapsto":                          "\u21A6",
+	"mapstodown":                      "\u21A7",
+	"mapstoleft":                      "\u21A4",
+	"mapstoup":                        "\u21A5",
+	"marker":                          "\u25AE",
+	"mcomma":                          "\u2A29",
+	"mcy":                             "\u043C",
+	"mdash":                           "\u2014",
+	"measuredangle":                   "\u2221",
+	"mfr":                             "\U0001D52A",
+	"mho":                             "\u2127",
+	"micro":                           "\u00B5",
+	"mid":                             "\u2223",
+	"midast":                          "\u002A",
+	"midcir":                          "\u2AF0",
+	"middot":                          "\u00B7",
+	"minus":                           "\u2212",
+	"minusb":                          "\u229F",
+	"minusd":                          "\u2238",
+	"minusdu":                         "\u2A2A",
+	"mlcp":                            "\u2ADB",
+	"mldr":                            "\u2026",
+	"mnplus":                          "\u2213",
+	"models":                          "\u22A7",
+	"mopf":                            "\U0001D55E",
+	"mp":                              "\u2213",
+	"mscr":                            "\U0001D4C2",
+	"mstpos":                          "\u223E",
+	"mu":                              "\u03BC",
+	"multimap":                        "\u22B8",
+	"mumap":                           "\u22B8",
+	"nGg":                             "\u22D9\u0338",
+	"nGt":                             "\u226B\u20D2",
+	"nGtv":                            "\u226B\u0338",
+	"nLeftarrow":                      "\u21CD",
+	"nLeftrightarrow":                 "\u21CE",
+	"nLl":                             "\u22D8\u0338",
+	"nLt":                             "\u226A\u20D2",
+	"nLtv":                            "\u226A\u0338",
+	"nRightarrow":                     "\u21CF",
+	"nVDash":                          "\u22AF",
+	"nVdash":                          "\u22AE",
+	"nabla":                           "\u2207",
+	"nacute":                          "\u0144",
+	"nang":                            "\u2220\u20D2",
+	"nap":                             "\u2249",
+	"napE":                            "\u2A70\u0338",
+	"napid":                           "\u224B\u0338",
+	"napos":                           "\u0149",
+	"napprox":                         "\u2249",
+	"natur":                           "\u266E",
+	"natural":                         "\u266E",
+	"naturals":                        "\u2115",
+	"nbsp":                            "\u00A0",
+	"nbump":                           "\u224E\u0338",
+	"nbumpe":                          "\u224F\u0338",
+	"ncap":                            "\u2A43",
+	"ncaron":                          "\u0148",
+	"ncedil":                          "\u0146",
+	"ncong":                           "\u2247",
+	"ncongdot":                        "\u2A6D\u0338",
+	"ncup":                            "\u2A42",
+	"ncy":                             "\u043D",
+	"ndash":                           "\u2013",
+	"ne":                              "\u2260",
+	"neArr":                           "\u21D7",
+	"nearhk":                          "\u2924",
+	"nearr":                           "\u2197",
+	"nearrow":                         "\u2197",
+	"nedot":                           "\u2250\u0338",
+	"nequiv":                          "\u2262",
+	"nesear":                          "\u2928",
+	"nesim":                           "\u2242\u0338",
+	"nexist":                          "\u2204",
+	"nexists":                         "\u2204",
+	"nfr":                             "\U0001D52B",
+	"ngE":                             "\u2267\u0338",
+	"nge":                             "\u2271",
+	"ngeq":                            "\u2271",
+	"ngeqq":                           "\u2267\u0338",
+	"ngeqslant":                       "\u2A7E\u0338",
+	"nges":                            "\u2A7E\u0338",
+	"ngsim":                           "\u2275",
+	"ngt":                             "\u226F",
+	"ngtr":                            "\u226F",
+	"nhArr":                           "\u21CE",
+	"nharr":                           "\u21AE",
+	"nhpar":                           "\u2AF2",
+	"ni":                              "\u220B",
+	"nis":                             "\u22FC",
+	"nisd":                            "\u22FA",
+	"niv":                             "\u220B",
+	"njcy":                            "\u045A",
+	"nlArr":                           "\u21CD",
+	"nlE":                             "\u2266\u0338",
+	"nlarr":                           "\u219A",
+	"nldr":                            "\u2025",
+	"nle":                             "\u2270",
+	"nleftarrow":                      "\u219A",
+	"nleftrightarrow":                 "\u21AE",
+	"nleq":                            "\u2270",
+	"nleqq":                           "\u2266\u0338",
+	"nleqslant":                       "\u2A7D\u0338",
+	"nles":                            "\u2A7D\u0338",
+	"nless":                           "\u226E",
+	"nlsim":                           "\u2274",
+	"nlt":                             "\u226E",
+	"nltri":                           "\u22EA",
+	"nltrie":                          "\u22EC",
+	"nmid":                            "\u2224",
+	"nopf":                            "\U0001D55F",
+	"not":                             "\u00AC",
+	"notin":                           "\u2209",
+	"notinE":                          "\u22F9\u0338",
+	"notindot":                        "\u22F5\u0338",
+	"notinva":                         "\u2209",
+	"notinvb":                         "\u22F7",
+	"notinvc":                         "\u22F6",
+	"notni":                           "\u220C",
+	"notniva":                         "\u220C",
+	"notnivb":                         "\u22FE",
+	"notnivc":                         "\u22FD",
+	"npar":                            "\u2226",
+	"nparallel":                       "\u2226",
+	"nparsl":                          "\u2AFD\u20E5",
+	"npart":                           "\u2202\u0338",
+	"npolint":                         "\u2A14",
+	"npr":                             "\u2280",
+	"nprcue":                          "\u22E0",
+	"npre":                            "\u2AAF\u0338",
+	"nprec":                           "\u2280",
+	"npreceq":                         "\u2AAF\u0338",
+	"nrArr":                           "\u21CF",
+	"nrarr":                           "\u219B",
+	"nrarrc":                          "\u2933\u0338",
+	"nrarrw":                          "\u219D\u0338",
+	"nrightarrow":                     "\u219B",
+	"nrtri":                           "\u22EB",
+	"nrtrie":                          "\u22ED",
+	"nsc":                             "\u2281",
+	"nsccue":                          "\u22E1",
+	"nsce":                            "\u2AB0\u0338",
+	"nscr":                            "\U0001D4C3",
+	"nshortmid":                       "\u2224",
+	"nshortparallel":                  "\u2226",
+	"nsim":                            "\u2241",
+	"nsime":                           "\u2244",
+	"nsimeq":                          "\u2244",
+	"nsmid":                           "\u2224",
+	"nspar":                           "\u2226",
+	"nsqsube":                         "\u22E2",
+	"nsqsupe":                         "\u22E3",
+	"nsub":                            "\u2284",
+	"nsubE":                           "\u2AC5\u0338",
+	"nsube":                           "\u2288",
+	"nsubset":                         "\u2282\u20D2",
+	"nsubseteq":                       "\u2288",
+	"nsubseteqq":                      "\u2AC5\u0338",
+	"nsucc":                           "\u2281",
+	"nsucceq":                         "\u2AB0\u0338",
+	"nsup":                            "\u2285",
+	"nsupE":                           "\u2AC6\u0338",
+	"nsupe":                           "\u2289",
+	"nsupset":                         "\u2283\u20D2",
+	"nsupseteq":                       "\u2289",
+	"nsupseteqq":                      "\u2AC6\u0338",
+	"ntgl":                            "\u2279",
+	"ntilde":                          "\u00F1",
+	"ntlg":                            "\u2278",
+	"ntriangleleft":                   "\u22EA",
+	"ntrianglelefteq":                 "\u22EC",
+	"ntriangleright":                  "\u22EB",
+	"ntrianglerighteq":                "\u22ED",
+	"nu":                              "\u03BD",
+	"num":                             "\u0023",
+	"numero":                          "\u2116",
+	"numsp":                           "\u2007",
+	"nvDash":                          "\u22AD",
+	"nvHarr":                          "\u2904",
+	"nvap":                            "\u224D\u20D2",
+	"nvdash":                          "\u22AC",
+	"nvge":                            "\u2265\u20D2",
+	"nvgt":                            "\u003E\u20D2",
+	"nvinfin":                         "\u29DE",
+	"nvlArr":                          "\u2902",
+	"nvle":                            "\u2264\u20D2",
+	"nvlt":                            "\u003C\u20D2",
+	"nvltrie":                         "\u22B4\u20D2",
+	"nvrArr":                          "\u2903",
+	"nvrtrie":                         "\u22B5\u20D2",
+	"nvsim":                           "\u223C\u20D2",
+	"nwArr":                           "\u21D6",
+	"nwarhk":                          "\u2923",
+	"nwarr":                           "\u2196",
+	"nwarrow":                         "\u2196",
+	"nwnear":                          "\u2927",
+	"oS":                              "\u24C8",
+	"oacute":                          "\u00F3",
+	"oast":                            "\u229B",
+	"ocir":                            "\u229A",
+	"ocirc":                           "\u00F4",
+	"ocy":                             "\u043E",
+	"odash":                           "\u229D",
+	"odblac":                          "\u0151",
+	"odiv":                            "\u2A38",
+	"odot":                            "\u2299",
+	"odsold":                          "\u29BC",
+	"oelig":                           "\u0153",
+	"ofcir":                           "\u29BF",
+	"ofr":                             "\U0001D52C",
+	"ogon":                            "\u02DB",
+	"ograve":                          "\u00F2",
+	"ogt":                             "\u29C1",
+	"ohbar":                           "\u29B5",
+	"ohm":                             "\u03A9",
+	"oint":                            "\u222E",
+	"olarr":                           "\u21BA",
+	"olcir":                           "\u29BE",
+	"olcross":                         "\u29BB",
+	"oline":                           "\u203E",
+	"olt":                             "\u29C0",
+	"omacr":                           "\u014D",
+	"omega":                           "\u03C9",
+	"omicron":                         "\u03BF",
+	"omid":                            "\u29B6",
+	"ominus":                          "\u2296",
+	"oopf":                            "\U0001D560",
+	"opar":                            "\u29B7",
+	"operp":                           "\u29B9",
+	"oplus":                           "\u2295",
+	"or":                              "\u2228",
+	"orarr":                           "\u21BB",
+	"ord":                             "\u2A5D",
+	"order":                           "\u2134",
+	"orderof":                         "\u2134",
+	"ordf":                            "\u00AA",
+	"ordm":                            "\u00BA",
+	"origof":                          "\u22B6",
+	"oror":                            "\u2A56",
+	"orslope":                         "\u2A57",
+	"orv":                             "\u2A5B",
+	"oscr":                            "\u2134",
+	"oslash":                          "\u00F8",
+	"osol":                            "\u2298",
+	"otilde":                          "\u00F5",
+	"otimes":                          "\u2297",
+	"otimesas":                        "\u2A36",
+	"ouml":                            "\u00F6",
+	"ovbar":                           "\u233D",
+	"par":                             "\u2225",
+	"para":                            "\u00B6",
+	"parallel":                        "\u2225",
+	"parsim":                          "\u2AF3",
+	"parsl":                           "\u2AFD",
+	"part":                            "\u2202",
+	"pcy":                             "\u043F",
+	"percnt":                          "\u0025",
+	"period":                          "\u002E",
+	"permil":                          "\u2030",
+	"perp":                            "\u22A5",
+	"pertenk":                         "\u2031",
+	"pfr":                             "\U0001D52D",
+	"phi":                             "\u03C6",
+	"phiv":                            "\u03D5",
+	"phmmat":                          "\u2133",
+	"phone":                           "\u260E",
+	"pi":                              "\u03C0",
+	"pitchfork":                       "\u22D4",
+	"piv":                             "\u03D6",
+	"planck":                          "\u210F",
+	"planckh":                         "\u210E",
+	"plankv":                          "\u210F",
+	"plus":                            "\u002B",
+	"plusacir":                        "\u2A23",
+	"plusb":                           "\u229E",
+	"pluscir":                         "\u2A22",
+	"plusdo":                          "\u2214",
+	"plusdu":                          "\u2A25",
+	"pluse":                           "\u2A72",
+	"plusmn":                          "\u00B1",
+	"plussim":                         "\u2A26",
+	"plustwo":                         "\u2A27",
+	"pm":                              "\u00B1",
+	"pointint":                        "\u2A15",
+	"popf":                            "\U0001D561",
+	"pound":                           "\u00A3",
+	"pr":                              "\u227A",
+	"prE":                             "\u2AB3",
+	"prap":                            "\u2AB7",
+	"prcue":                           "\u227C",
+	"pre":                             "\u2AAF",
+	"prec":                            "\u227A",
+	"precapprox":                      "\u2AB7",
+	"preccurlyeq":                     "\u227C",
+	"preceq":                          "\u2AAF",
+	"precnapprox":                     "\u2AB9",
+	"precneqq":                        "\u2AB5",
+	"precnsim":                        "\u22E8",
+	"precsim":                         "\u227E",
+	"prime":                           "\u2032",
+	"primes":                          "\u2119",
+	"prnE":                            "\u2AB5",
+	"prnap":                           "\u2AB9",
+	"prnsim":                          "\u22E8",
+	"prod":                            "\u220F",
+	"profalar":                        "\u232E",
+	"profline":                        "\u2312",
+	"profsurf":                        "\u2313",
+	"prop":                            "\u221D",
+	"propto":                          "\u221D",
+	"prsim":                           "\u227E",
+	"prurel":                          "\u22B0",
+	"pscr":                            "\U0001D4C5",
+	"psi":                             "\u03C8",
+	"puncsp":                          "\u2008",
+	"qfr":                             "\U0001D52E",
+	"qint":                            "\u2A0C",
+	"qopf":                            "\U0001D562",
+	"qprime":                          "\u2057",
+	"qscr":                            "\U0001D4C6",
+	"quaternions":                     "\u210D",
+	"quatint":                         "\u2A16",
+	"quest":                           "\u003F",
+	"questeq":                         "\u225F",
+	"quot":                            "\u0022",
+	"rAarr":                           "\u21DB",
+	"rArr":                            "\u21D2",
+	"rAtail":                          "\u291C",
+	"rBarr":                           "\u290F",
+	"rHar":                            "\u2964",
+	"race":                            "\u223D\u0331",
+	"racute":                          "\u0155",
+	"radic":                           "\u221A",
+	"raemptyv":                        "\u29B3",
+	"rang":                            "\u27E9",
+	"rangd":                           "\u2992",
+	"range":                           "\u29A5",
+	"rangle":                          "\u27E9",
+	"raquo":                           "\u00BB",
+	"rarr":                            "\u2192",
+	"rarrap":                          "\u2975",
+	"rarrb":                           "\u21E5",
+	"rarrbfs":                         "\u2920",
+	"rarrc":                           "\u2933",
+	"rarrfs":                          "\u291E",
+	"rarrhk":                          "\u21AA",
+	"rarrlp":                          "\u21AC",
+	"rarrpl":                          "\u2945",
+	"rarrsim":                         "\u2974",
+	"rarrtl":                          "\u21A3",
+	"rarrw":                           "\u219D",
+	"ratail":                          "\u291A",
+	"ratio":                           "\u2236",
+	"rationals":                       "\u211A",
+	"rbarr":                           "\u290D",
+	"rbbrk":                           "\u2773",
+	"rbrace":                          "\u007D",
+	"rbrack":                          "\u005D",
+	"rbrke":                           "\u298C",
+	"rbrksld":                         "\u298E",
+	"rbrkslu":                         "\u2990",
+	"rcaron":                          "\u0159",
+	"rcedil":                          "\u0157",
+	"rceil":                           "\u2309",
+	"rcub":                            "\u007D",
+	"rcy":                             "\u0440",
+	"rdca":                            "\u2937",
+	"rdldhar":                         "\u2969",
+	"rdquo":                           "\u201D",
+	"rdquor":                          "\u201D",
+	"rdsh":                            "\u21B3",
+	"real":                            "\u211C",
+	"realine":                         "\u211B",
+	"realpart":                        "\u211C",
+	"reals":                           "\u211D",
+	"rect":                            "\u25AD",
+	"reg":                             "\u00AE",
+	"rfisht":                          "\u297D",
+	"rfloor":                          "\u230B",
+	"rfr":                             "\U0001D52F",
+	"rhard":                           "\u21C1",
+	"rharu":                           "\u21C0",
+	"rharul":                          "\u296C",
+	"rho":                             "\u03C1",
+	"rhov":                            "\u03F1",
+	"rightarrow":                      "\u2192",
+	"rightarrowtail":                  "\u21A3",
+	"rightharpoondown":                "\u21C1",
+	"rightharpoonup":                  "\u21C0",
+	"rightleftarrows":                 "\u21C4",
+	"rightleftharpoons":               "\u21CC",
+	"rightrightarrows":                "\u21C9",
+	"rightsquigarrow":                 "\u219D",
+	"rightthreetimes":                 "\u22CC",
+	"ring":                            "\u02DA",
+	"risingdotseq":                    "\u2253",
+	"rlarr":                           "\u21C4",
+	"rlhar":                           "\u21CC",
+	"rlm":                             "\u200F",
+	"rmoust":                          "\u23B1",
+	"rmoustache":                      "\u23B1",
+	"rnmid":                           "\u2AEE",
+	"roang":                           "\u27ED",
+	"roarr":                           "\u21FE",
+	"robrk":                           "\u27E7",
+	"ropar":                           "\u2986",
+	"ropf":                            "\U0001D563",
+	"roplus":                          "\u2A2E",
+	"rotimes":                         "\u2A35",
+	"rpar":                            "\u0029",
+	"rpargt":                          "\u2994",
+	"rppolint":                        "\u2A12",
+	"rrarr":                           "\u21C9",
+	"rsaquo":                          "\u203A",
+	"rscr":                            "\U0001D4C7",
+	"rsh":                             "\u21B1",
+	"rsqb":                            "\u005D",
+	"rsquo":                           "\u2019",
+	"rsquor":                          "\u2019",
+	"rthree":                          "\u22CC",
+	"rtimes":                          "\u22CA",
+	"rtri":                            "\u25B9",
+	"rtrie":                           "\u22B5",
+	"rtrif":                           "\u25B8",
+	"rtriltri":                        "\u29CE",
+	"ruluhar":                         "\u2968",
+	"rx":                              "\u211E",
+	"sacute":                          "\u015B",
+	"sbquo":                           "\u201A",
+	"sc":                              "\u227B",
+	"scE":                             "\u2AB4",
+	"scap":                            "\u2AB8",
+	"scaron":                          "\u0161",
+	"sccue":                           "\u227D",
+	"sce":                             "\u2AB0",
+	"scedil":                          "\u015F",
+	"scirc":                           "\u015D",
+	"scnE":                            "\u2AB6",
+	"scnap":                           "\u2ABA",
+	"scnsim":                          "\u22E9",
+	"scpolint":                        "\u2A13",
+	"scsim":                           "\u227F",
+	"scy":                             "\u0441",
+	"sdot":                            "\u22C5",
+	"sdotb":                           "\u22A1",
+	"sdote":                           "\u2A66",
+	"seArr":                           "\u21D8",
+	"searhk":                          "\u2925",
+	"searr":                           "\u2198",
+	"searrow":                         "\u2198",
+	"sect":                            "\u00A7",
+	"semi":                            "\u003B",
+	"seswar":                          "\u2929",
+	"setminus":                        "\u2216",
+	"setmn":                           "\u2216",
+	"sext":                            "\u2736",
+	"sfr":                             "\U0001D530",
+	"sfrown":                          "\u2322",
+	"sharp":                           "\u266F",
+	"shchcy":                          "\u0449",
+	"shcy":                            "\u0448",
+	"shortmid":                        "\u2223",
+	"shortparallel":                   "\u2225",
+	"shy":                             "\u00AD",
+	"sigma":                           "\u03C3",
+	"sigmaf":                          "\u03C2",
+	"sigmav":                          "\u03C2",
+	"sim":                             "\u223C",
+	"simdot":                          "\u2A6A",
+	"sime":                            "\u2243",
+	"simeq":                           "\u2243",
+	"simg":                            "\u2A9E",
+	"simgE":                           "\u2AA0",
+	"siml":                            "\u2A9D",
+	"simlE":                           "\u2A9F",
+	"simne":                           "\u2246",
+	"simplus":                         "\u2A24",
+	"simrarr":                         "\u2972",
+	"slarr":                           "\u2190",
+	"smallsetminus":                   "\u2216",
+	"smashp":                          "\u2A33",
+	"smeparsl":                        "\u29E4",
+	"smid":                            "\u2223",
+	"smile":                           "\u2323",
+	"smt":                             "\u2AAA",
+	"smte":                            "\u2AAC",
+	"smtes":                           "\u2AAC\uFE00",
+	"softcy":                          "\u044C",
+	"sol":                             "\u002F",
+	"solb":                            "\u29C4",
+	"solbar":                          "\u233F",
+	"sopf":                            "\U0001D564",
+	"spades":                          "\u2660",
+	"spadesuit":                       "\u2660",
+	"spar":                            "\u2225",
+	"sqcap":                           "\u2293",
+	"sqcaps":                          "\u2293\uFE00",
+	"sqcup":                           "\u2294",
+	"sqcups":                          "\u2294\uFE00",
+	"sqsub":                           "\u228F",
+	"sqsube":                          "\u2291",
+	"sqsubset":                        "\u228F",
+	"sqsubseteq":                      "\u2291",
+	"sqsup":                           "\u2290",
+	"sqsupe":                          "\u2292",
+	"sqsupset":                        "\u2290",
+	"sqsupseteq":                      "\u2292",
+	"squ":                             "\u25A1",
+	"square":                          "\u25A1",
+	"squarf":                          "\u25AA",
+	"squf":                            "\u25AA",
+	"srarr":                           "\u2192",
+	"sscr":                            "\U0001D4C8",
+	"ssetmn":                          "\u2216",
+	"ssmile":                          "\u2323",
+	"sstarf":                          "\u22C6",
+	"star":                            "\u2606",
+	"starf":                           "\u2605",
+	"straightepsilon":                 "\u03F5",
+	"straightphi":                     "\u03D5",
+	"strns":                           "\u00AF",
+	"sub":                             "\u2282",
+	"subE":                            "\u2AC5",
+	"subdot":                          "\u2ABD",
+	"sube":                            "\u2286",
+	"subedot":                         "\u2AC3",
+	"submult":                         "\u2AC1",
+	"subnE":                           "\u2ACB",
+	"subne":                           "\u228A",
+	"subplus":                         "\u2ABF",
+	"subrarr":                         "\u2979",
+	"subset":                          "\u2282",
+	"subseteq":                        "\u2286",
+	"subseteqq":                       "\u2AC5",
+	"subsetneq":                       "\u228A",
+	"subsetneqq":                      "\u2ACB",
+	"subsim":                          "\u2AC7",
+	"subsub":                          "\u2AD5",
+	"subsup":                          "\u2AD3",
+	"succ":                            "\u227B",
+	"succapprox":                      "\u2AB8",
+	"succcurlyeq":                     "\u227D",
+	"succeq":                          "\u2AB0",
+	"succnapprox":                     "\u2ABA",
+	"succneqq":                        "\u2AB6",
+	"succnsim":                        "\u22E9",
+	"succsim":                         "\u227F",
+	"sum":                             "\u2211",
+	"sung":                            "\u266A",
+	"sup":                             "\u2283",
+	"sup1":                            "\u00B9",
+	"sup2":                            "\u00B2",
+	"sup3":                            "\u00B3",
+	"supE":                            "\u2AC6",
+	"supdot":                          "\u2ABE",
+	"supdsub":                         "\u2AD8",
+	"supe":                            "\u2287",
+	"supedot":                         "\u2AC4",
+	"suphsol":                         "\u27C9",
+	"suphsub":                         "\u2AD7",
+	"suplarr":                         "\u297B",
+	"supmult":                         "\u2AC2",
+	"supnE":                           "\u2ACC",
+	"supne":                           "\u228B",
+	"supplus":                         "\u2AC0",
+	"supset":                          "\u2283",
+	"supseteq":                        "\u2287",
+	"supseteqq":                       "\u2AC6",
+	"supsetneq":                       "\u228B",
+	"supsetneqq":                      "\u2ACC",
+	"supsim":                          "\u2AC8",
+	"supsub":                          "\u2AD4",
+	"supsup":                          "\u2AD6",
+	"swArr":                           "\u21D9",
+	"swarhk":                          "\u2926",
+	"swarr":                           "\u2199",
+	"swarrow":                         "\u2199",
+	"swnwar":                          "\u292A",
+	"szlig":                           "\u00DF",
+	"target":                          "\u2316",
+	"tau":                             "\u03C4",
+	"tbrk":                            "\u23B4",
+	"tcaron":                          "\u0165",
+	"tcedil":                          "\u0163",
+	"tcy":                             "\u0442",
+	"tdot":                            "\u20DB",
+	"telrec":                          "\u2315",
+	"tfr":                             "\U0001D531",
+	"there4":                          "\u2234",
+	"therefore":                       "\u2234",
+	"theta":                           "\u03B8",
+	"thetasym":                        "\u03D1",
+	"thetav":                          "\u03D1",
+	"thickapprox":                     "\u2248",
+	"thicksim":                        "\u223C",
+	"thinsp":                          "\u2009",
+	"thkap":                           "\u2248",
+	"thksim":                          "\u223C",
+	"thorn":                           "\u00FE",
+	"tilde":                           "\u02DC",
+	"times":                           "\u00D7",
+	"timesb":                          "\u22A0",
+	"timesbar":                        "\u2A31",
+	"timesd":                          "\u2A30",
+	"tint":                            "\u222D",
+	"toea":                            "\u2928",
+	"top":                             "\u22A4",
+	"topbot":                          "\u2336",
+	"topcir":                          "\u2AF1",
+	"topf":                            "\U0001D565",
+	"topfork":                         "\u2ADA",
+	"tosa":                            "\u2929",
+	"tprime":                          "\u2034",
+	"trade":                           "\u2122",
+	"triangle":                        "\u25B5",
+	"triangledown":                    "\u25BF",
+	"triangleleft":                    "\u25C3",
+	"trianglelefteq":                  "\u22B4",
+	"triangleq":                       "\u225C",
+	"triangleright":                   "\u25B9",
+	"trianglerighteq":                 "\u22B5",
+	"tridot":                          "\u25EC",
+	"trie":                            "\u225C",
+	"triminus":                        "\u2A3A",
+	"triplus":                         "\u2A39",
+	"trisb":                           "\u29CD",
+	"tritime":                         "\u2A3B",
+	"trpezium":                        "\u23E2",
+	"tscr":                            "\U0001D4C9",
+	"tscy":                            "\u0446",
+	"tshcy":                           "\u045B",
+	"tstrok":                          "\u0167",
+	"twixt":                           "\u226C",
+	"twoheadleftarrow":                "\u219E",
+	"twoheadrightarrow":               "\u21A0",
+	"uArr":                            "\u21D1",
+	"uHar":                            "\u2963",
+	"uacute":                          "\u00FA",
+	"uarr":                            "\u2191",
+	"ubrcy":                           "\u045E",
+	"ubreve":                          "\u016D",
+	"ucirc":                           "\u00FB",
+	"ucy":                             "\u0443",
+	"udarr":                           "\u21C5",
+	"udblac":                          "\u0171",
+	"udhar":                           "\u296E",
+	"ufisht":                          "\u297E",
+	"ufr":                             "\U0001D532",
+	"ugrave":                          "\u00F9",
+	"uharl":                           "\u21BF",
+	"uharr":                           "\u21BE",
+	"uhblk":                           "\u2580",
+	"ulcorn":                          "\u231C",
+	"ulcorner":                        "\u231C",
+	"ulcrop":                          "\u230F",
+	"ultri":                           "\u25F8",
+	"umacr":                           "\u016B",
+	"uml":                             "\u00A8",
+	"uogon":                           "\u0173",
+	"uopf":                            "\U0001D566",
+	"uparrow":                         "\u2191",
+	"updownarrow":                     "\u2195",
+	"upharpoonleft":                   "\u21BF",
+	"upharpoonright":                  "\u21BE",
+	"uplus":                           "\u228E",
+	"upsi":                            "\u03C5",
+	"upsih":                           "\u03D2",
+	"upsilon":                         "\u03C5",
+	"upuparrows":                      "\u21C8",
+	"urcorn":                          "\u231D",
+	"urcorner":                        "\u231D",
+	"urcrop":                          "\u230E",
+	"uring":                           "\u016F",
+	"urtri":                           "\u25F9",
+	"uscr":                            "\U0001D4CA",
+	"utdot":                           "\u22F0",
+	"utilde":                          "\u0169",
+	"utri":                            "\u25B5",
+	"utrif":                           "\u25B4",
+	"uuarr":                           "\u21C8",
+	"uuml":                            "\u00FC",
+	"uwangle":                         "\u29A7",
+	"vArr":                            "\u21D5",
+	"vBar":                            "\u2AE8",
+	"vBarv":                           "\u2AE9",
+	"vDash":                           "\u22A8",
+	"vangrt":                          "\u299C",
+	"varepsilon":                      "\u03F5",
+	"varkappa":                        "\u03F0",
+	"varnothing":                      "\u2205",
+	"varphi":                          "\u03D5",
+	"varpi":                           "\u03D6",
+	"varpropto":                       "\u221D",
+	"varr":                            "\u2195",
+	"varrho":                          "\u03F1",
+	"varsigma":                        "\u03C2",
+	"varsubsetneq":                    "\u228A\uFE00",
+	"varsubsetneqq":                   "\u2ACB\uFE00",
+	"varsupsetneq":                    "\u228B\uFE00",
+	"varsupsetneqq":                   "\u2ACC\uFE00",
+	"vartheta":                        "\u03D1",
+	"vartriangleleft":                 "\u22B2",
+	"vartriangleright":                "\u22B3",
+	"vcy":                             "\u0432",
+	"vdash":                           "\u22A2",
+	"vee":                             "\u2228",
+	"veebar":                          "\u22BB",
+	"veeeq":                           "\u225A",
+	"vellip":                          "\u22EE",
+	"verbar":                          "\u007C",
+	"vert":                            "\u007C",
+	"vfr":                             "\U0001D533",
+	"vltri":                           "\u22B2",
+	"vnsub":                           "\u2282\u20D2",
+	"vnsup":                           "\u2283\u20D2",
+	"vopf":                            "\U0001D567",
+	"vprop":                           "\u221D",
+	"vrtri":                           "\u22B3",
+	"vscr":                            "\U0001D4CB",
+	"vsubnE":                          "\u2ACB\uFE00",
+	"vsubne":                          "\u228A\uFE00",
+	"vsupnE":                          "\u2ACC\uFE00",
+	"vsupne":                          "\u228B\uFE00",
+	"vzigzag":                         "\u299A",
+	"wcirc":                           "\u0175",
+	"wedbar":                          "\u2A5F",
+	"wedge":                           "\u2227",
+	"wedgeq":                          "\u2259",
+	"weierp":                          "\u2118",
+	"wfr":                             "\U0001D534",
+	"wopf":                            "\U0001D568",
+	"wp":                              "\u2118",
+	"wr":                              "\u2240",
+	"wreath":                          "\u2240",
+	"wscr":                            "\U0001D4CC",
+	"xcap":                            "\u22C2",
+	"xcirc":                           "\u25EF",
+	"xcup":                            "\u22C3",
+	"xdtri":                           "\u25BD",
+	"xfr":                             "\U0001D535",
+	"xhArr":                           "\u27FA",
+	"xharr":                           "\u27F7",
+	"xi":                              "\u03BE",
+	"xlArr":                           "\u27F8",
+	"xlarr":                           "\u27F5",
+	"xmap":                            "\u27FC",
+	"xnis":                            "\u22FB",
+	"xodot":                           "\u2A00",
+	"xopf":                            "\U0001D569",
+	"xoplus":                          "\u2A01",
+	"xotime":                          "\u2A02",
+	"xrArr":                           "\u27F9",
+	"xrarr":                           "\u27F6",
+	"xscr":                            "\U0001D4CD",
+	"xsqcup":                          "\u2A06",
+	"xuplus":                          "\u2A04",
+	"xutri":                           "\u25B3",
+	"xvee":                            "\u22C1",
+	"xwedge":                          "\u22C0",
+	"yacute":                          "\u00FD",
+	"yacy":                            "\u044F",
+	"ycirc":                           "\u0177",
+	"ycy":                             "\u044B",
+	"yen":                             "\u00A5",
+	"yfr":                             "\U0001D536",
+	"yicy":                            "\u0457",
+	"yopf":                            "\U0001D56A",
+	"yscr":                            "\U0001D4CE",
+	"yucy":                            "\u044E",
+	"yuml":                            "\u00FF",
+	"zacute":                          "\u017A",
+	"zcaron":                          "\u017E",
+	"zcy":                             "\u0437",
+	"zdot":                            "\u017C",
+	"zeetrf":                          "\u2128",
+	"zeta":                            "\u03B6",
+	"zfr":                             "\U0001D537",
+	"zhcy":                            "\u0436",
+	"zigrarr":                         "\u21DD",
+	"zopf":                            "\U0001D56B",
+	"zscr":                            "\U0001D4CF",
+	"zwj":                             "\u200D",
+	"zwnj":                            "\u200C",
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/indented_code.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/indented_code.go
new file mode 100644
index 00000000..a89ee6c7
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/indented_code.go
@@ -0,0 +1,98 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+import (
+	"strings"
+)
+
+type IndentedCodeLine struct {
+	Indentation int
+	Range       Range
+}
+
+type IndentedCode struct {
+	blockBase
+	markdown string
+
+	RawCode []IndentedCodeLine
+}
+
+func (b *IndentedCode) Code() (result string) {
+	for _, code := range b.RawCode {
+		result += strings.Repeat(" ", code.Indentation) + b.markdown[code.Range.Position:code.Range.End]
+	}
+	return
+}
+
+func (b *IndentedCode) Continuation(indentation int, r Range) *continuation {
+	if indentation >= 4 {
+		return &continuation{
+			Indentation: indentation - 4,
+			Remaining:   r,
+		}
+	}
+	s := b.markdown[r.Position:r.End]
+	if strings.TrimSpace(s) == "" {
+		return &continuation{
+			Remaining: r,
+		}
+	}
+	return nil
+}
+
+func (b *IndentedCode) AddLine(indentation int, r Range) bool {
+	b.RawCode = append(b.RawCode, IndentedCodeLine{
+		Indentation: indentation,
+		Range:       r,
+	})
+	return true
+}
+
+func (b *IndentedCode) Close() {
+	for {
+		last := b.RawCode[len(b.RawCode)-1]
+		s := b.markdown[last.Range.Position:last.Range.End]
+		if strings.TrimRight(s, "\r\n") == "" {
+			b.RawCode = b.RawCode[:len(b.RawCode)-1]
+		} else {
+			break
+		}
+	}
+}
+
+func (b *IndentedCode) AllowsBlockStarts() bool {
+	return false
+}
+
+func indentedCodeStart(markdown string, indentation int, r Range, matchedBlocks, unmatchedBlocks []Block) []Block {
+	if len(unmatchedBlocks) > 0 {
+		if _, ok := unmatchedBlocks[len(unmatchedBlocks)-1].(*Paragraph); ok {
+			return nil
+		}
+	} else if len(matchedBlocks) > 0 {
+		if _, ok := matchedBlocks[len(matchedBlocks)-1].(*Paragraph); ok {
+			return nil
+		}
+	}
+
+	if indentation < 4 {
+		return nil
+	}
+
+	s := markdown[r.Position:r.End]
+	if strings.TrimSpace(s) == "" {
+		return nil
+	}
+
+	return []Block{
+		&IndentedCode{
+			markdown: markdown,
+			RawCode: []IndentedCodeLine{{
+				Indentation: indentation - 4,
+				Range:       r,
+			}},
+		},
+	}
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/inlines.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/inlines.go
new file mode 100644
index 00000000..4303607f
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/inlines.go
@@ -0,0 +1,664 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+import (
+	"container/list"
+	"strings"
+	"unicode"
+	"unicode/utf8"
+)
+
+type Inline interface {
+	IsInline() bool
+}
+
+type inlineBase struct{}
+
+func (inlineBase) IsInline() bool { return true }
+
+type Text struct {
+	inlineBase
+
+	Text  string
+	Range Range
+}
+
+type CodeSpan struct {
+	inlineBase
+
+	Code string
+}
+
+type HardLineBreak struct {
+	inlineBase
+}
+
+type SoftLineBreak struct {
+	inlineBase
+}
+
+type InlineLinkOrImage struct {
+	inlineBase
+
+	Children []Inline
+
+	RawDestination Range
+
+	markdown string
+	rawTitle string
+}
+
+func (i *InlineLinkOrImage) Destination() string {
+	return Unescape(i.markdown[i.RawDestination.Position:i.RawDestination.End])
+}
+
+func (i *InlineLinkOrImage) Title() string {
+	return Unescape(i.rawTitle)
+}
+
+type InlineLink struct {
+	InlineLinkOrImage
+}
+
+type InlineImage struct {
+	InlineLinkOrImage
+}
+
+type ReferenceLinkOrImage struct {
+	inlineBase
+	*ReferenceDefinition
+
+	Children []Inline
+}
+
+type ReferenceLink struct {
+	ReferenceLinkOrImage
+}
+
+type ReferenceImage struct {
+	ReferenceLinkOrImage
+}
+
+type Autolink struct {
+	inlineBase
+
+	Children []Inline
+
+	RawDestination Range
+
+	markdown string
+}
+
+func (i *Autolink) Destination() string {
+	destination := Unescape(i.markdown[i.RawDestination.Position:i.RawDestination.End])
+
+	if strings.HasPrefix(destination, "www") {
+		destination = "http://" + destination
+	}
+
+	return destination
+}
+
+type delimiterType int
+
+const (
+	linkOpeningDelimiter delimiterType = iota
+	imageOpeningDelimiter
+)
+
+type delimiter struct {
+	Type       delimiterType
+	IsInactive bool
+	TextNode   int
+	Range      Range
+}
+
+type inlineParser struct {
+	markdown             string
+	ranges               []Range
+	referenceDefinitions []*ReferenceDefinition
+
+	raw            string
+	position       int
+	inlines        []Inline
+	delimiterStack *list.List
+}
+
+func newInlineParser(markdown string, ranges []Range, referenceDefinitions []*ReferenceDefinition) *inlineParser {
+	return &inlineParser{
+		markdown:             markdown,
+		ranges:               ranges,
+		referenceDefinitions: referenceDefinitions,
+		delimiterStack:       list.New(),
+	}
+}
+
+func (p *inlineParser) parseBackticks() {
+	count := 1
+	for i := p.position + 1; i < len(p.raw) && p.raw[i] == '`'; i++ {
+		count++
+	}
+	opening := p.raw[p.position : p.position+count]
+	search := p.position + count
+	for search < len(p.raw) {
+		end := strings.Index(p.raw[search:], opening)
+		if end == -1 {
+			break
+		}
+		if search+end+count < len(p.raw) && p.raw[search+end+count] == '`' {
+			search += end + count
+			for search < len(p.raw) && p.raw[search] == '`' {
+				search++
+			}
+			continue
+		}
+		code := strings.Join(strings.Fields(p.raw[p.position+count:search+end]), " ")
+		p.position = search + end + count
+		p.inlines = append(p.inlines, &CodeSpan{
+			Code: code,
+		})
+		return
+	}
+	p.position += len(opening)
+	absPos := relativeToAbsolutePosition(p.ranges, p.position-len(opening))
+	p.inlines = append(p.inlines, &Text{
+		Text:  opening,
+		Range: Range{absPos, absPos + len(opening)},
+	})
+}
+
+func (p *inlineParser) parseLineEnding() {
+	if p.position >= 1 && p.raw[p.position-1] == '\t' {
+		p.inlines = append(p.inlines, &HardLineBreak{})
+	} else if p.position >= 2 && p.raw[p.position-1] == ' ' && (p.raw[p.position-2] == '\t' || p.raw[p.position-1] == ' ') {
+		p.inlines = append(p.inlines, &HardLineBreak{})
+	} else {
+		p.inlines = append(p.inlines, &SoftLineBreak{})
+	}
+	p.position++
+	if p.position < len(p.raw) && p.raw[p.position] == '\n' {
+		p.position++
+	}
+}
+
+func (p *inlineParser) parseEscapeCharacter() {
+	if p.position+1 < len(p.raw) && isEscapableByte(p.raw[p.position+1]) {
+		absPos := relativeToAbsolutePosition(p.ranges, p.position+1)
+		p.inlines = append(p.inlines, &Text{
+			Text:  string(p.raw[p.position+1]),
+			Range: Range{absPos, absPos + len(string(p.raw[p.position+1]))},
+		})
+		p.position += 2
+	} else {
+		absPos := relativeToAbsolutePosition(p.ranges, p.position)
+		p.inlines = append(p.inlines, &Text{
+			Text:  `\`,
+			Range: Range{absPos, absPos + 1},
+		})
+		p.position++
+	}
+}
+
+func (p *inlineParser) parseText() {
+	if next := strings.IndexAny(p.raw[p.position:], "\r\n\\`&![]wW:"); next == -1 {
+		absPos := relativeToAbsolutePosition(p.ranges, p.position)
+		p.inlines = append(p.inlines, &Text{
+			Text:  strings.TrimRightFunc(p.raw[p.position:], isWhitespace),
+			Range: Range{absPos, absPos + len(p.raw[p.position:])},
+		})
+		p.position = len(p.raw)
+	} else {
+		absPos := relativeToAbsolutePosition(p.ranges, p.position)
+		if p.raw[p.position+next] == '\r' || p.raw[p.position+next] == '\n' {
+			s := strings.TrimRightFunc(p.raw[p.position:p.position+next], isWhitespace)
+			p.inlines = append(p.inlines, &Text{
+				Text:  s,
+				Range: Range{absPos, absPos + len(s)},
+			})
+		} else {
+			if next == 0 {
+				// Always read at least one character since 'w', 'W', and ':' may not actually match another
+				// type of node
+				next = 1
+			}
+
+			p.inlines = append(p.inlines, &Text{
+				Text:  p.raw[p.position : p.position+next],
+				Range: Range{absPos, absPos + next},
+			})
+		}
+		p.position += next
+	}
+}
+
+func (p *inlineParser) parseLinkOrImageDelimiter() {
+	absPos := relativeToAbsolutePosition(p.ranges, p.position)
+	if p.raw[p.position] == '[' {
+		p.inlines = append(p.inlines, &Text{
+			Text:  "[",
+			Range: Range{absPos, absPos + 1},
+		})
+		p.delimiterStack.PushBack(&delimiter{
+			Type:     linkOpeningDelimiter,
+			TextNode: len(p.inlines) - 1,
+			Range:    Range{p.position, p.position + 1},
+		})
+		p.position++
+	} else if p.raw[p.position] == '!' && p.position+1 < len(p.raw) && p.raw[p.position+1] == '[' {
+		p.inlines = append(p.inlines, &Text{
+			Text:  "![",
+			Range: Range{absPos, absPos + 2},
+		})
+		p.delimiterStack.PushBack(&delimiter{
+			Type:     imageOpeningDelimiter,
+			TextNode: len(p.inlines) - 1,
+			Range:    Range{p.position, p.position + 2},
+		})
+		p.position += 2
+	} else {
+		p.inlines = append(p.inlines, &Text{
+			Text:  "!",
+			Range: Range{absPos, absPos + 1},
+		})
+		p.position++
+	}
+}
+
+func (p *inlineParser) peekAtInlineLinkDestinationAndTitle(position int, isImage bool) (destination, title Range, end int, ok bool) {
+	if position >= len(p.raw) || p.raw[position] != '(' {
+		return
+	}
+	position++
+
+	destinationStart := nextNonWhitespace(p.raw, position)
+	if destinationStart >= len(p.raw) {
+		return
+	} else if p.raw[destinationStart] == ')' {
+		return Range{destinationStart, destinationStart}, Range{destinationStart, destinationStart}, destinationStart + 1, true
+	}
+
+	destination, end, ok = parseLinkDestination(p.raw, destinationStart)
+	if !ok {
+		return
+	}
+	position = end
+
+	if isImage && position < len(p.raw) && isWhitespaceByte(p.raw[position]) {
+		dimensionsStart := nextNonWhitespace(p.raw, position)
+		if dimensionsStart >= len(p.raw) {
+			return
+		}
+
+		if p.raw[dimensionsStart] == '=' {
+			// Read optional image dimensions even if we don't use them
+			_, end, ok = parseImageDimensions(p.raw, dimensionsStart)
+			if !ok {
+				return
+			}
+
+			position = end
+		}
+	}
+
+	if position < len(p.raw) && isWhitespaceByte(p.raw[position]) {
+		titleStart := nextNonWhitespace(p.raw, position)
+		if titleStart >= len(p.raw) {
+			return
+		} else if p.raw[titleStart] == ')' {
+			return destination, Range{titleStart, titleStart}, titleStart + 1, true
+		}
+
+		if p.raw[titleStart] == '"' || p.raw[titleStart] == '\'' || p.raw[titleStart] == '(' {
+			title, end, ok = parseLinkTitle(p.raw, titleStart)
+			if !ok {
+				return
+			}
+			position = end
+		}
+	}
+
+	closingPosition := nextNonWhitespace(p.raw, position)
+	if closingPosition >= len(p.raw) || p.raw[closingPosition] != ')' {
+		return Range{}, Range{}, 0, false
+	}
+
+	return destination, title, closingPosition + 1, true
+}
+
+func (p *inlineParser) referenceDefinition(label string) *ReferenceDefinition {
+	clean := strings.Join(strings.Fields(label), " ")
+	for _, d := range p.referenceDefinitions {
+		if strings.EqualFold(clean, strings.Join(strings.Fields(d.Label()), " ")) {
+			return d
+		}
+	}
+	return nil
+}
+
+func (p *inlineParser) lookForLinkOrImage() {
+	for element := p.delimiterStack.Back(); element != nil; element = element.Prev() {
+		d := element.Value.(*delimiter)
+		if d.Type != imageOpeningDelimiter && d.Type != linkOpeningDelimiter {
+			continue
+		}
+		if d.IsInactive {
+			p.delimiterStack.Remove(element)
+			break
+		}
+
+		isImage := d.Type == imageOpeningDelimiter
+
+		var inline Inline
+
+		if destination, title, next, ok := p.peekAtInlineLinkDestinationAndTitle(p.position+1, isImage); ok {
+			destinationMarkdownPosition := relativeToAbsolutePosition(p.ranges, destination.Position)
+			linkOrImage := InlineLinkOrImage{
+				Children:       append([]Inline(nil), p.inlines[d.TextNode+1:]...),
+				RawDestination: Range{destinationMarkdownPosition, destinationMarkdownPosition + destination.End - destination.Position},
+				markdown:       p.markdown,
+				rawTitle:       p.raw[title.Position:title.End],
+			}
+			if d.Type == imageOpeningDelimiter {
+				inline = &InlineImage{linkOrImage}
+			} else {
+				inline = &InlineLink{linkOrImage}
+			}
+			p.position = next
+		} else {
+			referenceLabel := ""
+			label, next, hasLinkLabel := parseLinkLabel(p.raw, p.position+1)
+			if hasLinkLabel && label.End > label.Position {
+				referenceLabel = p.raw[label.Position:label.End]
+			} else {
+				referenceLabel = p.raw[d.Range.End:p.position]
+				if !hasLinkLabel {
+					next = p.position + 1
+				}
+			}
+			if referenceLabel != "" {
+				if reference := p.referenceDefinition(referenceLabel); reference != nil {
+					linkOrImage := ReferenceLinkOrImage{
+						ReferenceDefinition: reference,
+						Children:            append([]Inline(nil), p.inlines[d.TextNode+1:]...),
+					}
+					if d.Type == imageOpeningDelimiter {
+						inline = &ReferenceImage{linkOrImage}
+					} else {
+						inline = &ReferenceLink{linkOrImage}
+					}
+					p.position = next
+				}
+			}
+		}
+
+		if inline != nil {
+			if d.Type == imageOpeningDelimiter {
+				p.inlines = append(p.inlines[:d.TextNode], inline)
+			} else {
+				p.inlines = append(p.inlines[:d.TextNode], inline)
+				for inlineElement := element.Prev(); inlineElement != nil; inlineElement = inlineElement.Prev() {
+					if d := inlineElement.Value.(*delimiter); d.Type == linkOpeningDelimiter {
+						d.IsInactive = true
+					}
+				}
+			}
+			p.delimiterStack.Remove(element)
+			return
+		} else {
+			p.delimiterStack.Remove(element)
+			break
+		}
+	}
+	absPos := relativeToAbsolutePosition(p.ranges, p.position)
+	p.inlines = append(p.inlines, &Text{
+		Text:  "]",
+		Range: Range{absPos, absPos + 1},
+	})
+	p.position++
+}
+
+func CharacterReference(ref string) string {
+	if ref == "" {
+		return ""
+	}
+	if ref[0] == '#' {
+		if len(ref) < 2 {
+			return ""
+		}
+		n := 0
+		if ref[1] == 'X' || ref[1] == 'x' {
+			if len(ref) < 3 {
+				return ""
+			}
+			for i := 2; i < len(ref); i++ {
+				if i > 9 {
+					return ""
+				}
+				d := ref[i]
+				switch {
+				case d >= '0' && d <= '9':
+					n = n*16 + int(d-'0')
+				case d >= 'a' && d <= 'f':
+					n = n*16 + 10 + int(d-'a')
+				case d >= 'A' && d <= 'F':
+					n = n*16 + 10 + int(d-'A')
+				default:
+					return ""
+				}
+			}
+		} else {
+			for i := 1; i < len(ref); i++ {
+				if i > 8 || ref[i] < '0' || ref[i] > '9' {
+					return ""
+				}
+				n = n*10 + int(ref[i]-'0')
+			}
+		}
+		c := rune(n)
+		if c == '\u0000' || !utf8.ValidRune(c) {
+			return string(unicode.ReplacementChar)
+		}
+		return string(c)
+	}
+	if entity, ok := htmlEntities[ref]; ok {
+		return entity
+	}
+	return ""
+}
+
+func (p *inlineParser) parseCharacterReference() {
+	absPos := relativeToAbsolutePosition(p.ranges, p.position)
+	p.position++
+	if semicolon := strings.IndexByte(p.raw[p.position:], ';'); semicolon == -1 {
+		p.inlines = append(p.inlines, &Text{
+			Text:  "&",
+			Range: Range{absPos, absPos + 1},
+		})
+	} else if s := CharacterReference(p.raw[p.position : p.position+semicolon]); s != "" {
+		p.position += semicolon + 1
+		p.inlines = append(p.inlines, &Text{
+			Text:  s,
+			Range: Range{absPos, absPos + len(s)},
+		})
+	} else {
+		p.inlines = append(p.inlines, &Text{
+			Text:  "&",
+			Range: Range{absPos, absPos + 1},
+		})
+	}
+}
+
+func (p *inlineParser) parseAutolink(c rune) bool {
+	for element := p.delimiterStack.Back(); element != nil; element = element.Prev() {
+		d := element.Value.(*delimiter)
+		if !d.IsInactive {
+			return false
+		}
+	}
+
+	var link Range
+	if c == ':' {
+		var ok bool
+		link, ok = parseURLAutolink(p.raw, p.position)
+
+		if !ok {
+			return false
+		}
+
+		// Since the current position is at the colon, we have to rewind the parsing slightly so that
+		// we don't duplicate the URL scheme
+		rewind := strings.Index(p.raw[link.Position:link.End], ":")
+		if rewind != -1 {
+			lastInline := p.inlines[len(p.inlines)-1]
+			lastText, ok := lastInline.(*Text)
+
+			if !ok {
+				// This should never occur since parseURLAutolink will only return a non-empty value
+				// when the previous text ends in a valid URL protocol which would mean that the previous
+				// node is a Text node
+				return false
+			}
+
+			p.inlines = p.inlines[0 : len(p.inlines)-1]
+			p.inlines = append(p.inlines, &Text{
+				Text:  lastText.Text[:len(lastText.Text)-rewind],
+				Range: Range{lastText.Range.Position, lastText.Range.End - rewind},
+			})
+			p.position -= rewind
+		}
+	} else if c == 'w' || c == 'W' {
+		var ok bool
+		link, ok = parseWWWAutolink(p.raw, p.position)
+
+		if !ok {
+			return false
+		}
+	}
+
+	linkMarkdownPosition := relativeToAbsolutePosition(p.ranges, link.Position)
+	linkRange := Range{linkMarkdownPosition, linkMarkdownPosition + link.End - link.Position}
+
+	p.inlines = append(p.inlines, &Autolink{
+		Children: []Inline{
+			&Text{
+				Text:  p.raw[link.Position:link.End],
+				Range: linkRange,
+			},
+		},
+		RawDestination: linkRange,
+		markdown:       p.markdown,
+	})
+	p.position += (link.End - link.Position)
+
+	return true
+}
+
+func (p *inlineParser) Parse() []Inline {
+	for _, r := range p.ranges {
+		p.raw += p.markdown[r.Position:r.End]
+	}
+
+	for p.position < len(p.raw) {
+		c, _ := utf8.DecodeRuneInString(p.raw[p.position:])
+
+		switch c {
+		case '\r', '\n':
+			p.parseLineEnding()
+		case '\\':
+			p.parseEscapeCharacter()
+		case '`':
+			p.parseBackticks()
+		case '&':
+			p.parseCharacterReference()
+		case '!', '[':
+			p.parseLinkOrImageDelimiter()
+		case ']':
+			p.lookForLinkOrImage()
+		case 'w', 'W', ':':
+			matched := p.parseAutolink(c)
+
+			if !matched {
+				p.parseText()
+			}
+		default:
+			p.parseText()
+		}
+	}
+
+	return p.inlines
+}
+
+func ParseInlines(markdown string, ranges []Range, referenceDefinitions []*ReferenceDefinition) (inlines []Inline) {
+	return newInlineParser(markdown, ranges, referenceDefinitions).Parse()
+}
+
+func MergeInlineText(inlines []Inline) []Inline {
+	var ret []Inline
+	for i, v := range inlines {
+		// always add first node
+		if i == 0 {
+			ret = append(ret, v)
+			continue
+		}
+		// not a text node? nothing to merge
+		text, ok := v.(*Text)
+		if !ok {
+			ret = append(ret, v)
+			continue
+		}
+		// previous node is not a text node? nothing to merge
+		prevText, ok := ret[len(ret)-1].(*Text)
+		if !ok {
+			ret = append(ret, v)
+			continue
+		}
+		// previous node is not right before this one
+		if prevText.Range.End != text.Range.Position {
+			ret = append(ret, v)
+			continue
+		}
+		// we have two consecutive text nodes
+		ret[len(ret)-1] = &Text{
+			Text:  prevText.Text + text.Text,
+			Range: Range{prevText.Range.Position, text.Range.End},
+		}
+	}
+	return ret
+}
+
+func Unescape(markdown string) string {
+	ret := ""
+
+	position := 0
+	for position < len(markdown) {
+		c, cSize := utf8.DecodeRuneInString(markdown[position:])
+
+		switch c {
+		case '\\':
+			if position+1 < len(markdown) && isEscapableByte(markdown[position+1]) {
+				ret += string(markdown[position+1])
+				position += 2
+			} else {
+				ret += `\`
+				position++
+			}
+		case '&':
+			position++
+			if semicolon := strings.IndexByte(markdown[position:], ';'); semicolon == -1 {
+				ret += "&"
+			} else if s := CharacterReference(markdown[position : position+semicolon]); s != "" {
+				position += semicolon + 1
+				ret += s
+			} else {
+				ret += "&"
+			}
+		default:
+			ret += string(c)
+			position += cSize
+		}
+	}
+
+	return ret
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/inspect.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/inspect.go
new file mode 100644
index 00000000..3c7f2d1c
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/inspect.go
@@ -0,0 +1,78 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+// Inspect traverses the markdown tree in depth-first order. If f returns true, Inspect invokes f
+// recursively for each child of the block or inline, followed by a call of f(nil).
+func Inspect(markdown string, f func(interface{}) bool) {
+	document, referenceDefinitions := Parse(markdown)
+	InspectBlock(document, func(block Block) bool {
+		if !f(block) {
+			return false
+		}
+		switch v := block.(type) {
+		case *Paragraph:
+			for _, inline := range MergeInlineText(v.ParseInlines(referenceDefinitions)) {
+				InspectInline(inline, func(inline Inline) bool {
+					return f(inline)
+				})
+			}
+		}
+		return true
+	})
+}
+
+// InspectBlock traverses the blocks in depth-first order, starting with block. If f returns true,
+// InspectBlock invokes f recursively for each child of the block, followed by a call of f(nil).
+func InspectBlock(block Block, f func(Block) bool) {
+	if !f(block) {
+		return
+	}
+	switch v := block.(type) {
+	case *Document:
+		for _, child := range v.Children {
+			InspectBlock(child, f)
+		}
+	case *List:
+		for _, child := range v.Children {
+			InspectBlock(child, f)
+		}
+	case *ListItem:
+		for _, child := range v.Children {
+			InspectBlock(child, f)
+		}
+	case *BlockQuote:
+		for _, child := range v.Children {
+			InspectBlock(child, f)
+		}
+	}
+	f(nil)
+}
+
+// InspectInline traverses the blocks in depth-first order, starting with block. If f returns true,
+// InspectInline invokes f recursively for each child of the block, followed by a call of f(nil).
+func InspectInline(inline Inline, f func(Inline) bool) {
+	if !f(inline) {
+		return
+	}
+	switch v := inline.(type) {
+	case *InlineImage:
+		for _, child := range v.Children {
+			InspectInline(child, f)
+		}
+	case *InlineLink:
+		for _, child := range v.Children {
+			InspectInline(child, f)
+		}
+	case *ReferenceImage:
+		for _, child := range v.Children {
+			InspectInline(child, f)
+		}
+	case *ReferenceLink:
+		for _, child := range v.Children {
+			InspectInline(child, f)
+		}
+	}
+	f(nil)
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/lines.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/lines.go
new file mode 100644
index 00000000..a0a64491
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/lines.go
@@ -0,0 +1,27 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+type Line struct {
+	Range
+}
+
+func ParseLines(markdown string) (lines []Line) {
+	lineStartPosition := 0
+	isAfterCarriageReturn := false
+	for position, r := range markdown {
+		if r == '\n' {
+			lines = append(lines, Line{Range{lineStartPosition, position + 1}})
+			lineStartPosition = position + 1
+		} else if isAfterCarriageReturn {
+			lines = append(lines, Line{Range{lineStartPosition, position}})
+			lineStartPosition = position
+		}
+		isAfterCarriageReturn = r == '\r'
+	}
+	if lineStartPosition < len(markdown) {
+		lines = append(lines, Line{Range{lineStartPosition, len(markdown)}})
+	}
+	return
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/links.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/links.go
new file mode 100644
index 00000000..df4aa748
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/links.go
@@ -0,0 +1,184 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+import (
+	"unicode/utf8"
+)
+
+func parseLinkDestination(markdown string, position int) (raw Range, next int, ok bool) {
+	if position >= len(markdown) {
+		return
+	}
+
+	if markdown[position] == '<' {
+		isEscaped := false
+
+		for offset, c := range []byte(markdown[position+1:]) {
+			if isEscaped {
+				isEscaped = false
+				if isEscapableByte(c) {
+					continue
+				}
+			}
+
+			if c == '\\' {
+				isEscaped = true
+			} else if c == '<' {
+				break
+			} else if c == '>' {
+				return Range{position + 1, position + 1 + offset}, position + 1 + offset + 1, true
+			} else if isWhitespaceByte(c) {
+				break
+			}
+		}
+	}
+
+	openCount := 0
+	isEscaped := false
+	for offset, c := range []byte(markdown[position:]) {
+		if isEscaped {
+			isEscaped = false
+			if isEscapableByte(c) {
+				continue
+			}
+		}
+
+		switch c {
+		case '\\':
+			isEscaped = true
+		case '(':
+			openCount++
+		case ')':
+			if openCount < 1 {
+				return Range{position, position + offset}, position + offset, true
+			}
+			openCount--
+		default:
+			if isWhitespaceByte(c) {
+				return Range{position, position + offset}, position + offset, true
+			}
+		}
+	}
+	return Range{position, len(markdown)}, len(markdown), true
+}
+
+func parseLinkTitle(markdown string, position int) (raw Range, next int, ok bool) {
+	if position >= len(markdown) {
+		return
+	}
+
+	originalPosition := position
+
+	var closer byte
+	switch markdown[position] {
+	case '"', '\'':
+		closer = markdown[position]
+	case '(':
+		closer = ')'
+	default:
+		return
+	}
+	position++
+
+	for position < len(markdown) {
+		switch markdown[position] {
+		case '\\':
+			position++
+			if position < len(markdown) && isEscapableByte(markdown[position]) {
+				position++
+			}
+		case closer:
+			return Range{originalPosition + 1, position}, position + 1, true
+		default:
+			position++
+		}
+	}
+
+	return
+}
+
+func parseLinkLabel(markdown string, position int) (raw Range, next int, ok bool) {
+	if position >= len(markdown) || markdown[position] != '[' {
+		return
+	}
+
+	originalPosition := position
+	position++
+
+	for position < len(markdown) {
+		switch markdown[position] {
+		case '\\':
+			position++
+			if position < len(markdown) && isEscapableByte(markdown[position]) {
+				position++
+			}
+		case '[':
+			return
+		case ']':
+			if position-originalPosition >= 1000 && utf8.RuneCountInString(markdown[originalPosition:position]) >= 1000 {
+				return
+			}
+			return Range{originalPosition + 1, position}, position + 1, true
+		default:
+			position++
+		}
+	}
+
+	return
+}
+
+// As a non-standard feature, we allow image links to specify dimensions of the image by adding "=WIDTHxHEIGHT"
+// after the image destination but before the image title like ![alt](http://example.com/image.png =100x200 "title").
+// Both width and height are optional, but at least one of them must be specified.
+func parseImageDimensions(markdown string, position int) (raw Range, next int, ok bool) {
+	if position >= len(markdown) {
+		return
+	}
+
+	originalPosition := position
+
+	// Read =
+	position += 1
+	if position >= len(markdown) {
+		return
+	}
+
+	// Read width
+	hasWidth := false
+	for isNumericByte(markdown[position]) {
+		hasWidth = true
+		position += 1
+	}
+
+	// Look for early end of dimensions
+	if isWhitespaceByte(markdown[position]) || markdown[position] == ')' {
+		return Range{originalPosition, position - 1}, position, true
+	}
+
+	// Read the x
+	if markdown[position] != 'x' && markdown[position] != 'X' {
+		return
+	}
+	position += 1
+
+	// Read height
+	hasHeight := false
+	for isNumericByte(markdown[position]) {
+		hasHeight = true
+		position += 1
+	}
+
+	// Make sure the there's no trailing characters
+	if !isWhitespaceByte(markdown[position]) && markdown[position] != ')' {
+		return
+	}
+
+	if !hasWidth && !hasHeight {
+		// At least one of width or height is required
+		return
+	}
+
+	return Range{originalPosition, position - 1}, position, true
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/list.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/list.go
new file mode 100644
index 00000000..39039295
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/list.go
@@ -0,0 +1,220 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+import (
+	"strings"
+)
+
+type ListItem struct {
+	blockBase
+	markdown                    string
+	hasTrailingBlankLine        bool
+	hasBlankLineBetweenChildren bool
+
+	Indentation int
+	Children    []Block
+}
+
+func (b *ListItem) Continuation(indentation int, r Range) *continuation {
+	s := b.markdown[r.Position:r.End]
+	if strings.TrimSpace(s) == "" {
+		if b.Children == nil {
+			return nil
+		}
+		return &continuation{
+			Remaining: r,
+		}
+	}
+	if indentation < b.Indentation {
+		return nil
+	}
+	return &continuation{
+		Indentation: indentation - b.Indentation,
+		Remaining:   r,
+	}
+}
+
+func (b *ListItem) AddChild(openBlocks []Block) []Block {
+	b.Children = append(b.Children, openBlocks[0])
+	if b.hasTrailingBlankLine {
+		b.hasBlankLineBetweenChildren = true
+	}
+	b.hasTrailingBlankLine = false
+	return openBlocks
+}
+
+func (b *ListItem) AddLine(indentation int, r Range) bool {
+	isBlank := strings.TrimSpace(b.markdown[r.Position:r.End]) == ""
+	if isBlank {
+		b.hasTrailingBlankLine = true
+	}
+	return false
+}
+
+func (b *ListItem) HasTrailingBlankLine() bool {
+	return b.hasTrailingBlankLine || (len(b.Children) > 0 && b.Children[len(b.Children)-1].HasTrailingBlankLine())
+}
+
+func (b *ListItem) isLoose() bool {
+	if b.hasBlankLineBetweenChildren {
+		return true
+	}
+	for i, child := range b.Children {
+		if i < len(b.Children)-1 && child.HasTrailingBlankLine() {
+			return true
+		}
+	}
+	return false
+}
+
+type List struct {
+	blockBase
+	markdown                    string
+	hasTrailingBlankLine        bool
+	hasBlankLineBetweenChildren bool
+
+	IsLoose           bool
+	IsOrdered         bool
+	OrderedStart      int
+	BulletOrDelimiter byte
+	Children          []*ListItem
+}
+
+func (b *List) Continuation(indentation int, r Range) *continuation {
+	s := b.markdown[r.Position:r.End]
+	if strings.TrimSpace(s) == "" {
+		return &continuation{
+			Remaining: r,
+		}
+	}
+	return &continuation{
+		Indentation: indentation,
+		Remaining:   r,
+	}
+}
+
+func (b *List) AddChild(openBlocks []Block) []Block {
+	if item, ok := openBlocks[0].(*ListItem); ok {
+		b.Children = append(b.Children, item)
+		if b.hasTrailingBlankLine {
+			b.hasBlankLineBetweenChildren = true
+		}
+		b.hasTrailingBlankLine = false
+		return openBlocks
+	} else if list, ok := openBlocks[0].(*List); ok {
+		if len(list.Children) == 1 && list.IsOrdered == b.IsOrdered && list.BulletOrDelimiter == b.BulletOrDelimiter {
+			return b.AddChild(openBlocks[1:])
+		}
+	}
+	return nil
+}
+
+func (b *List) AddLine(indentation int, r Range) bool {
+	isBlank := strings.TrimSpace(b.markdown[r.Position:r.End]) == ""
+	if isBlank {
+		b.hasTrailingBlankLine = true
+	}
+	return false
+}
+
+func (b *List) HasTrailingBlankLine() bool {
+	return b.hasTrailingBlankLine || (len(b.Children) > 0 && b.Children[len(b.Children)-1].HasTrailingBlankLine())
+}
+
+func (b *List) isLoose() bool {
+	if b.hasBlankLineBetweenChildren {
+		return true
+	}
+	for i, child := range b.Children {
+		if child.isLoose() || (i < len(b.Children)-1 && child.HasTrailingBlankLine()) {
+			return true
+		}
+	}
+	return false
+}
+
+func (b *List) Close() {
+	b.IsLoose = b.isLoose()
+}
+
+func parseListMarker(markdown string, r Range) (success, isOrdered bool, orderedStart int, bulletOrDelimiter byte, markerWidth int, remaining Range) {
+	digits := 0
+	n := 0
+	for i := r.Position; i < r.End && markdown[i] >= '0' && markdown[i] <= '9'; i++ {
+		digits++
+		n = n*10 + int(markdown[i]-'0')
+	}
+	if digits > 0 {
+		if digits > 9 || r.Position+digits >= r.End {
+			return
+		}
+		next := markdown[r.Position+digits]
+		if next != '.' && next != ')' {
+			return
+		}
+		return true, true, n, next, digits + 1, Range{r.Position + digits + 1, r.End}
+	}
+	if r.Position >= r.End {
+		return
+	}
+	next := markdown[r.Position]
+	if next != '-' && next != '+' && next != '*' {
+		return
+	}
+	return true, false, 0, next, 1, Range{r.Position + 1, r.End}
+}
+
+func listStart(markdown string, indent int, r Range, matchedBlocks, unmatchedBlocks []Block) []Block {
+	afterList := false
+	if len(matchedBlocks) > 0 {
+		_, afterList = matchedBlocks[len(matchedBlocks)-1].(*List)
+	}
+	if !afterList && indent > 3 {
+		return nil
+	}
+
+	success, isOrdered, orderedStart, bulletOrDelimiter, markerWidth, remaining := parseListMarker(markdown, r)
+	if !success {
+		return nil
+	}
+
+	isBlank := strings.TrimSpace(markdown[remaining.Position:remaining.End]) == ""
+	if len(matchedBlocks) > 0 && len(unmatchedBlocks) == 0 {
+		if _, ok := matchedBlocks[len(matchedBlocks)-1].(*Paragraph); ok {
+			if isBlank || (isOrdered && orderedStart != 1) {
+				return nil
+			}
+		}
+	}
+
+	indentAfterMarker, indentBytesAfterMarker := countIndentation(markdown, remaining)
+	if !isBlank && indentAfterMarker < 1 {
+		return nil
+	}
+
+	remaining = Range{remaining.Position + indentBytesAfterMarker, remaining.End}
+	consumedIndentAfterMarker := indentAfterMarker
+	if isBlank || indentAfterMarker >= 5 {
+		consumedIndentAfterMarker = 1
+	}
+
+	listItem := &ListItem{
+		markdown:    markdown,
+		Indentation: indent + markerWidth + consumedIndentAfterMarker,
+	}
+	list := &List{
+		markdown:          markdown,
+		IsOrdered:         isOrdered,
+		OrderedStart:      orderedStart,
+		BulletOrDelimiter: bulletOrDelimiter,
+		Children:          []*ListItem{listItem},
+	}
+	ret := []Block{list, listItem}
+	if descendants := blockStartOrParagraph(markdown, indentAfterMarker-consumedIndentAfterMarker, remaining, nil, nil); descendants != nil {
+		listItem.Children = append(listItem.Children, descendants[0])
+		ret = append(ret, descendants...)
+	}
+	return ret
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/markdown.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/markdown.go
new file mode 100644
index 00000000..a9879cee
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/markdown.go
@@ -0,0 +1,148 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+// This package implements a parser for the subset of the CommonMark spec necessary for us to do
+// server-side processing. It is not a full implementation and lacks many features. But it is
+// complete enough to efficiently and accurately allow us to do what we need to like rewrite image
+// URLs for proxying.
+package markdown
+
+import (
+	"strings"
+)
+
+func isEscapable(c rune) bool {
+	return c > ' ' && (c < '0' || (c > '9' && (c < 'A' || (c > 'Z' && (c < 'a' || (c > 'z' && c <= '~'))))))
+}
+
+func isEscapableByte(c byte) bool {
+	return isEscapable(rune(c))
+}
+
+func isWhitespace(c rune) bool {
+	switch c {
+	case ' ', '\t', '\n', '\u000b', '\u000c', '\r':
+		return true
+	default:
+		return false
+	}
+}
+
+func isWhitespaceByte(c byte) bool {
+	return isWhitespace(rune(c))
+}
+
+func isNumeric(c rune) bool {
+	return c >= '0' && c <= '9'
+}
+
+func isNumericByte(c byte) bool {
+	return isNumeric(rune(c))
+}
+
+func isHex(c rune) bool {
+	return isNumeric(c) || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F')
+}
+
+func isHexByte(c byte) bool {
+	return isHex(rune(c))
+}
+
+func isAlphanumeric(c rune) bool {
+	return isNumeric(c) || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
+}
+
+func isAlphanumericByte(c byte) bool {
+	return isAlphanumeric(rune(c))
+}
+
+func nextNonWhitespace(markdown string, position int) int {
+	for offset, c := range []byte(markdown[position:]) {
+		if !isWhitespaceByte(c) {
+			return position + offset
+		}
+	}
+	return len(markdown)
+}
+
+func nextLine(markdown string, position int) (linePosition int, skippedNonWhitespace bool) {
+	for i := position; i < len(markdown); i++ {
+		c := markdown[i]
+		if c == '\r' {
+			if i+1 < len(markdown) && markdown[i+1] == '\n' {
+				return i + 2, skippedNonWhitespace
+			}
+			return i + 1, skippedNonWhitespace
+		} else if c == '\n' {
+			return i + 1, skippedNonWhitespace
+		} else if !isWhitespaceByte(c) {
+			skippedNonWhitespace = true
+		}
+	}
+	return len(markdown), skippedNonWhitespace
+}
+
+func countIndentation(markdown string, r Range) (spaces, bytes int) {
+	for i := r.Position; i < r.End; i++ {
+		if markdown[i] == ' ' {
+			spaces++
+			bytes++
+		} else if markdown[i] == '\t' {
+			spaces += 4
+			bytes++
+		} else {
+			break
+		}
+	}
+	return
+}
+
+func trimLeftSpace(markdown string, r Range) Range {
+	s := markdown[r.Position:r.End]
+	trimmed := strings.TrimLeftFunc(s, isWhitespace)
+	return Range{r.Position, r.End - (len(s) - len(trimmed))}
+}
+
+func trimRightSpace(markdown string, r Range) Range {
+	s := markdown[r.Position:r.End]
+	trimmed := strings.TrimRightFunc(s, isWhitespace)
+	return Range{r.Position, r.End - (len(s) - len(trimmed))}
+}
+
+func relativeToAbsolutePosition(ranges []Range, position int) int {
+	rem := position
+	for _, r := range ranges {
+		l := r.End - r.Position
+		if rem < l {
+			return r.Position + rem
+		}
+		rem -= l
+	}
+	if len(ranges) == 0 {
+		return 0
+	}
+	return ranges[len(ranges)-1].End
+}
+
+func trimBytesFromRanges(ranges []Range, bytes int) (result []Range) {
+	rem := bytes
+	for _, r := range ranges {
+		if rem == 0 {
+			result = append(result, r)
+			continue
+		}
+		l := r.End - r.Position
+		if rem < l {
+			result = append(result, Range{r.Position + rem, r.End})
+			rem = 0
+			continue
+		}
+		rem -= l
+	}
+	return
+}
+
+func Parse(markdown string) (*Document, []*ReferenceDefinition) {
+	lines := ParseLines(markdown)
+	return ParseBlocks(markdown, lines)
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/paragraph.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/paragraph.go
new file mode 100644
index 00000000..aef01b5e
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/paragraph.go
@@ -0,0 +1,71 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+import (
+	"strings"
+)
+
+type Paragraph struct {
+	blockBase
+	markdown string
+
+	Text                 []Range
+	ReferenceDefinitions []*ReferenceDefinition
+}
+
+func (b *Paragraph) ParseInlines(referenceDefinitions []*ReferenceDefinition) []Inline {
+	return ParseInlines(b.markdown, b.Text, referenceDefinitions)
+}
+
+func (b *Paragraph) Continuation(indentation int, r Range) *continuation {
+	s := b.markdown[r.Position:r.End]
+	if strings.TrimSpace(s) == "" {
+		return nil
+	}
+	return &continuation{
+		Indentation: indentation,
+		Remaining:   r,
+	}
+}
+
+func (b *Paragraph) Close() {
+	for {
+		for i := 0; i < len(b.Text); i++ {
+			b.Text[i] = trimLeftSpace(b.markdown, b.Text[i])
+			if b.Text[i].Position < b.Text[i].End {
+				break
+			}
+		}
+
+		if len(b.Text) == 0 || b.Text[0].Position < b.Text[0].End && b.markdown[b.Text[0].Position] != '[' {
+			break
+		}
+
+		definition, remaining := parseReferenceDefinition(b.markdown, b.Text)
+		if definition == nil {
+			break
+		}
+		b.ReferenceDefinitions = append(b.ReferenceDefinitions, definition)
+		b.Text = remaining
+	}
+
+	for i := len(b.Text) - 1; i >= 0; i-- {
+		b.Text[i] = trimRightSpace(b.markdown, b.Text[i])
+		if b.Text[i].Position < b.Text[i].End {
+			break
+		}
+	}
+}
+
+func newParagraph(markdown string, r Range) *Paragraph {
+	s := markdown[r.Position:r.End]
+	if strings.TrimSpace(s) == "" {
+		return nil
+	}
+	return &Paragraph{
+		markdown: markdown,
+		Text:     []Range{r},
+	}
+}
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/reference_definition.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/reference_definition.go
new file mode 100644
index 00000000..69e8ed94
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/reference_definition.go
@@ -0,0 +1,75 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package markdown
+
+type ReferenceDefinition struct {
+	RawDestination Range
+
+	markdown string
+	rawLabel string
+	rawTitle string
+}
+
+func (d *ReferenceDefinition) Destination() string {
+	return Unescape(d.markdown[d.RawDestination.Position:d.RawDestination.End])
+}
+
+func (d *ReferenceDefinition) Label() string {
+	return d.rawLabel
+}
+
+func (d *ReferenceDefinition) Title() string {
+	return Unescape(d.rawTitle)
+}
+
+func parseReferenceDefinition(markdown string, ranges []Range) (*ReferenceDefinition, []Range) {
+	raw := ""
+	for _, r := range ranges {
+		raw += markdown[r.Position:r.End]
+	}
+
+	label, next, ok := parseLinkLabel(raw, 0)
+	if !ok {
+		return nil, nil
+	}
+	position := next
+
+	if position >= len(raw) || raw[position] != ':' {
+		return nil, nil
+	}
+	position++
+
+	destination, next, ok := parseLinkDestination(raw, nextNonWhitespace(raw, position))
+	if !ok {
+		return nil, nil
+	}
+	position = next
+
+	absoluteDestination := relativeToAbsolutePosition(ranges, destination.Position)
+	ret := &ReferenceDefinition{
+		RawDestination: Range{absoluteDestination, absoluteDestination + destination.End - destination.Position},
+		markdown:       markdown,
+		rawLabel:       raw[label.Position:label.End],
+	}
+
+	if position < len(raw) && isWhitespaceByte(raw[position]) {
+		title, next, ok := parseLinkTitle(raw, nextNonWhitespace(raw, position))
+		if !ok {
+			if nextLine, skippedNonWhitespace := nextLine(raw, position); !skippedNonWhitespace {
+				return ret, trimBytesFromRanges(ranges, nextLine)
+			}
+			return nil, nil
+		}
+		if nextLine, skippedNonWhitespace := nextLine(raw, next); !skippedNonWhitespace {
+			ret.rawTitle = raw[title.Position:title.End]
+			return ret, trimBytesFromRanges(ranges, nextLine)
+		}
+	}
+
+	if nextLine, skippedNonWhitespace := nextLine(raw, position); !skippedNonWhitespace {
+		return ret, trimBytesFromRanges(ranges, nextLine)
+	}
+
+	return nil, nil
+}
-- 
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