diff options
Diffstat (limited to 'vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/html.go')
| -rw-r--r-- | vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/html.go | 192 |
1 files changed, 0 insertions, 192 deletions
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 deleted file mode 100644 index 52583074..00000000 --- a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/html.go +++ /dev/null @@ -1,192 +0,0 @@ -// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved. -// See LICENSE.txt for license information. - -package markdown - -import ( - "fmt" - "strings" -) - -var htmlEscaper = strings.NewReplacer( - `&`, "&", - `<`, "<", - `>`, ">", - `"`, """, -) - -// 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 -} |