1 files changed, 74 insertions, 0 deletions
diff --git a/teleirc/matterbridge/bridge/telegram/html.go b/teleirc/matterbridge/bridge/telegram/html.go
new file mode 100644
index 0000000..4aa9fd3
--- /dev/null
+++ b/teleirc/matterbridge/bridge/telegram/html.go
@@ -0,0 +1,74 @@
+package btelegram
+
+import (
+	"bytes"
+
+	"github.com/russross/blackfriday"
+)
+
+type customHTML struct {
+	blackfriday.Renderer
+}
+
+func (options *customHTML) Paragraph(out *bytes.Buffer, text func() bool) {
+	marker := out.Len()
+
+	if !text() {
+		out.Truncate(marker)
+		return
+	}
+	out.WriteString("\n")
+}
+
+func (options *customHTML) BlockCode(out *bytes.Buffer, text []byte, lang string) {
+	out.WriteString("<pre>")
+
+	out.WriteString(string(text))
+	out.WriteString("</pre>\n")
+}
+
+func (options *customHTML) CodeSpan(out *bytes.Buffer, text []byte) {
+	out.WriteString("<code>")
+	out.WriteString(string(text))
+	out.WriteString("</code>")
+}
+
+func (options *customHTML) Header(out *bytes.Buffer, text func() bool, level int, id string) {
+	options.Paragraph(out, text)
+}
+
+func (options *customHTML) HRule(out *bytes.Buffer) {
+	out.WriteByte('\n') //nolint:errcheck
+}
+
+func (options *customHTML) BlockQuote(out *bytes.Buffer, text []byte) {
+	out.WriteString("> ")
+	out.Write(text)
+	out.WriteByte('\n')
+}
+
+func (options *customHTML) LineBreak(out *bytes.Buffer) {
+	out.WriteByte('\n')
+}
+
+func (options *customHTML) List(out *bytes.Buffer, text func() bool, flags int) {
+	options.Paragraph(out, text)
+}
+
+func (options *customHTML) ListItem(out *bytes.Buffer, text []byte, flags int) {
+	out.WriteString("- ")
+	out.Write(text)
+	out.WriteByte('\n')
+}
+
+func makeHTML(input string) string {
+	return string(blackfriday.Markdown([]byte(input),
+		&customHTML{blackfriday.HtmlRenderer(blackfriday.HTML_USE_XHTML|blackfriday.HTML_SKIP_IMAGES, "", "")},
+		blackfriday.EXTENSION_NO_INTRA_EMPHASIS|
+			blackfriday.EXTENSION_FENCED_CODE|
+			blackfriday.EXTENSION_AUTOLINK|
+			blackfriday.EXTENSION_SPACE_HEADERS|
+			blackfriday.EXTENSION_HEADER_IDS|
+			blackfriday.EXTENSION_BACKSLASH_LINE_BREAK|
+			blackfriday.EXTENSION_DEFINITION_LISTS))
+}