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Add Markdown diagrams and render hooks for code blocks

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You can now create custom hook templates for code blocks, either one for all (`render-codeblock.html`) or for a given code language (e.g. `render-codeblock-go.html`).

We also used this new hook to add support for diagrams in Hugo:

* Goat (Go ASCII Tool) is built-in and enabled by default; just create a fenced code block with the language `goat` and start draw your Ascii diagrams.
* Another popular alternative for diagrams in Markdown, Mermaid (supported by GitHub), can also be implemented with a simple template. See the Hugo documentation for more information.

Updates #7765
Closes #9538
Fixes #9553
Fixes #8520
Fixes #6702
Fixes #9558
This commit is contained in:
Bjørn Erik Pedersen
2022-02-17 13:04:00 +01:00
parent 2c20f5bc00
commit 08fdca9d93
73 changed files with 1887 additions and 1986 deletions
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9
markup/goldmark/toc_test.go
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@@ -18,6 +18,7 @@ import (
"strings"
"testing"
"github.com/gohugoio/hugo/markup/converter/hooks"
"github.com/gohugoio/hugo/markup/markup_config"
"github.com/gohugoio/hugo/common/loggers"
@@ -27,6 +28,8 @@ import (
qt "github.com/frankban/quicktest"
)
var nopGetRenderer = func(t hooks.RendererType, id interface{}) interface{} { return nil }
func TestToc(t *testing.T) {
c := qt.New(t)
@@ -58,7 +61,7 @@ And then some.
c.Assert(err, qt.IsNil)
conv, err := p.New(converter.DocumentContext{})
c.Assert(err, qt.IsNil)
b, err := conv.Convert(converter.RenderContext{Src: []byte(content), RenderTOC: true})
b, err := conv.Convert(converter.RenderContext{Src: []byte(content), RenderTOC: true, GetRenderer: nopGetRenderer})
c.Assert(err, qt.IsNil)
got := b.(converter.TableOfContentsProvider).TableOfContents().ToHTML(2, 3, false)
c.Assert(got, qt.Equals, `<nav id="TableOfContents">
@@ -108,7 +111,7 @@ func TestEscapeToc(t *testing.T) {
"# `echo codeblock`",
}, "\n")
// content := ""
b, err := safeConv.Convert(converter.RenderContext{Src: []byte(content), RenderTOC: true})
b, err := safeConv.Convert(converter.RenderContext{Src: []byte(content), RenderTOC: true, GetRenderer: nopGetRenderer})
c.Assert(err, qt.IsNil)
got := b.(converter.TableOfContentsProvider).TableOfContents().ToHTML(1, 2, false)
c.Assert(got, qt.Equals, `<nav id="TableOfContents">
@@ -120,7 +123,7 @@ func TestEscapeToc(t *testing.T) {
</ul>
</nav>`, qt.Commentf(got))
b, err = unsafeConv.Convert(converter.RenderContext{Src: []byte(content), RenderTOC: true})
b, err = unsafeConv.Convert(converter.RenderContext{Src: []byte(content), RenderTOC: true, GetRenderer: nopGetRenderer})
c.Assert(err, qt.IsNil)
got = b.(converter.TableOfContentsProvider).TableOfContents().ToHTML(1, 2, false)
c.Assert(got, qt.Equals, `<nav id="TableOfContents">