这是来自 Go blackfriday 的示例代码包裹:
package main
import (
"bytes"
"fmt"
"github.com/russross/blackfriday"
)
func main() {
input := []byte(`##Title
- another paragragh
This is a being rendered in a custom way.
`)
htmlFlags := 0
renderer := &renderer{Html: blackfriday.HtmlRenderer(htmlFlags, "", "").(*blackfriday.Html)}
extensions := 0
unsanitized := blackfriday.Markdown(input, renderer, extensions)
os.Stdout.Write(unsanitized)
}
// renderer implements blackfriday.Renderer and reuses blackfriday.Html for the most part,
// except overriding Link rendering.
type renderer struct {
*blackfriday.Html
}
func (options *renderer) Header(out *bytes.Buffer, text func() bool, level int, id string) {
fmt.Fprintf(out, "<custom link %q to %q>", content, link)
}
代码的目的是自定义输出 HTML 的 link
属性。
我尝试使用 p
标签来做同样的事情:
func (options *renderer) Paragraph(out *bytes.Buffer, text func() bool) {
fmt.Fprintf(out, "<p class='custom'>%q</p>", text)
}
但是输出是这样的:
<h1>Title</h1>
<ul>
<li>another paragragh</li>
</ul>
<p class='custom'>%!q(func() bool=0x80a15d0)</p>
所以我不知道如何输出实际的文本(这是以自定义方式呈现的。
)。有什么想法吗?
这是函数的源代码:
func (options *Html) Paragraph(out *bytes.Buffer, text func() bool) {
marker := out.Len()
doubleSpace(out)
out.WriteString("<p>")
if !text() {
out.Truncate(marker)
return
}
out.WriteString("</p>\n")
}
最佳答案
我认为你对函数的使用是错误的。
看看Html.Paragraph
并覆盖它。
也许它看起来像:
func (options *renderer) Paragraph(out *bytes.Buffer, text func() bool) {
marker := out.Len()
doubleSpace(out)
out.WriteString("<p class='custom'>")
if !text() {
out.Truncate(marker)
return
}
out.WriteString("</p>\n")
}
关于Go:如何在 Go 中使用 func() bool 参数?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/28758686/