65 lines
1.5 KiB
Go
65 lines
1.5 KiB
Go
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))
|
|
}
|