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Add GitHub style code fence support to mmark

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Fixes #1258.
This commit is contained in:
Andrew Brampton 2015-09-07 11:41:02 -07:00 committed by spf13
parent 7ecf2a55c1
commit c2c694f136
3 changed files with 84 additions and 1 deletions
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4
helpers/content.go
View file

@ -227,7 +227,9 @@ func GetMmarkHtmlRenderer(defaultFlags int, ctx *RenderingContext) mmark.Rendere
htmlFlags := defaultFlags
htmlFlags |= mmark.HTML_FOOTNOTE_RETURN_LINKS
return mmark.HtmlRendererWithParameters(htmlFlags, "", "", renderParameters)
return &HugoMmarkHtmlRenderer{
mmark.HtmlRendererWithParameters(htmlFlags, "", "", renderParameters),
}
}
func GetMmarkExtensions(ctx *RenderingContext) int {

17
helpers/content_renderer.go
View file

@ -6,9 +6,11 @@ import (
"github.com/russross/blackfriday"
"github.com/spf13/viper"
"github.com/miekg/mmark"
)
// Wraps a blackfriday.Renderer, typically a blackfriday.Html
// Enabling Hugo to customise the rendering experience
type HugoHtmlRenderer struct {
blackfriday.Renderer
}
@ -21,3 +23,18 @@ func (renderer *HugoHtmlRenderer) BlockCode(out *bytes.Buffer, text []byte, lang
renderer.Renderer.BlockCode(out, text, lang)
}
}
// Wraps a mmark.Renderer, typically a mmark.html
// Enabling Hugo to customise the rendering experience
type HugoMmarkHtmlRenderer struct {
mmark.Renderer
}
func (renderer *HugoMmarkHtmlRenderer) BlockCode(out *bytes.Buffer, text []byte, lang string, caption []byte, subfigure bool, callouts bool) {
if viper.GetBool("PygmentsCodeFences") {
str := html.UnescapeString(string(text))
out.WriteString(Highlight(str, lang, ""))
} else {
renderer.Renderer.BlockCode(out, text, lang, caption, subfigure, callouts)
}
}

64
helpers/content_renderer_test.go Normal file
View file

@ -0,0 +1,64 @@
package helpers
import (
"testing"
"github.com/spf13/viper"
"bytes"
)
// Renders a codeblock using Blackfriday
func render(input string) string {
ctx := &RenderingContext{};
render := GetHTMLRenderer(0, ctx);
buf := &bytes.Buffer{}
render.BlockCode(buf, []byte(input), "html")
return buf.String()
}
// Renders a codeblock using Mmark
func renderWithMmark(input string) string {
ctx := &RenderingContext{};
render := GetMmarkHtmlRenderer(0, ctx);
buf := &bytes.Buffer{}
render.BlockCode(buf, []byte(input), "html", []byte(""), false, false)
return buf.String()
}
func TestCodeFence(t *testing.T) {
if !HasPygments() {
t.Skip("Skipping Pygments test as Pygments is not installed or available.")
return
}
type test struct {
enabled bool
input, expected string
}
data := []test{
{true, "<html></html>", "<div class=\"highlight\"><pre><span class=\"nt\">&lt;html&gt;&lt;/html&gt;</span>\n</pre></div>\n"},
{false, "<html></html>", "<pre><code class=\"language-html\">&lt;html&gt;&lt;/html&gt;</code></pre>\n"},
}
viper.Reset()
defer viper.Reset()
viper.Set("PygmentsStyle", "monokai")
viper.Set("PygmentsUseClasses", true)
for i, d := range data {
viper.Set("PygmentsCodeFences", d.enabled)
result := render(d.input)
if result != d.expected {
t.Errorf("Test %d failed. BlackFriday enabled:%t, Expected:\n%q got:\n%q", i, d.enabled, d.expected, result)
}
result = renderWithMmark(d.input)
if result != d.expected {
t.Errorf("Test %d failed. Mmark enabled:%t, Expected:\n%q got:\n%q", i, d.enabled, d.expected, result)
}
}
}