func markdownRender(content []byte) []byte {
htmlFlags := 0
htmlFlags |= blackfriday.HTML_USE_XHTML
htmlFlags |= blackfriday.HTML_USE_SMARTYPANTS
htmlFlags |= blackfriday.HTML_SMARTYPANTS_FRACTIONS
htmlFlags |= blackfriday.HTML_SMARTYPANTS_LATEX_DASHES
renderer := blackfriday.HtmlRenderer(htmlFlags, "", "")
extensions := 0
extensions |= blackfriday.EXTENSION_NO_INTRA_EMPHASIS
extensions |= blackfriday.EXTENSION_TABLES
extensions |= blackfriday.EXTENSION_FENCED_CODE
extensions |= blackfriday.EXTENSION_AUTOLINK
extensions |= blackfriday.EXTENSION_STRIKETHROUGH
extensions |= blackfriday.EXTENSION_SPACE_HEADERS
return blackfriday.Markdown(content, renderer, extensions)
}
func PresentContentRenderer(flags int) (r *PresentContent) {
rd := blackfriday.HtmlRenderer(flags, "", "")
return &PresentContent{htmlRender: rd}
}