package btelegram import ( "bytes" "github.com/russross/blackfriday" "html" ) 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(html.EscapeString(string(text))) out.WriteString("</pre>\n") } 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') } func (options *customHTML) BlockQuote(out *bytes.Buffer, text []byte) { out.WriteString("> ") out.Write(text) 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)) }