69 lines
1.6 KiB
Go
69 lines
1.6 KiB
Go
package btelegram
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import (
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"bytes"
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"html"
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"github.com/russross/blackfriday"
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)
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type customHTML struct {
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blackfriday.Renderer
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}
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func (options *customHTML) Paragraph(out *bytes.Buffer, text func() bool) {
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marker := out.Len()
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if !text() {
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out.Truncate(marker)
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return
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}
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out.WriteString("\n")
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}
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func (options *customHTML) BlockCode(out *bytes.Buffer, text []byte, lang string) {
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out.WriteString("<pre>")
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out.WriteString(html.EscapeString(string(text)))
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out.WriteString("</pre>\n")
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}
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func (options *customHTML) Header(out *bytes.Buffer, text func() bool, level int, id string) {
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options.Paragraph(out, text)
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}
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func (options *customHTML) HRule(out *bytes.Buffer) {
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out.WriteByte('\n')
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}
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func (options *customHTML) BlockQuote(out *bytes.Buffer, text []byte) {
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out.WriteString("> ")
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out.Write(text)
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out.WriteByte('\n')
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}
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func (options *customHTML) List(out *bytes.Buffer, text func() bool, flags int) {
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options.Paragraph(out, text)
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}
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func (options *customHTML) ListItem(out *bytes.Buffer, text []byte, flags int) {
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out.WriteString("- ")
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out.Write(text)
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out.WriteByte('\n')
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}
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func makeHTML(input string) string {
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extensions := blackfriday.NoIntraEmphasis |
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blackfriday.FencedCode |
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blackfriday.Autolink |
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blackfriday.SpaceHeadings |
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blackfriday.HeadingIDs |
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blackfriday.BackslashLineBreak |
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blackfriday.DefinitionLists
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renderer := &customHTML{blackfriday.NewHTMLRenderer(blackfriday.HTMLRendererParameters{
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Flags: blackfriday.UseXHTML | blackfriday.SkipImages,
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})}
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return string(blackfriday.Run([]byte(input), blackfriday.WithExtensions(extensions), blackfriday.WithRenderer(renderer)))
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}
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