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https://github.com/go-gitea/gitea
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Add support for rendering terminal output with colors (#19497)
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@ -5,6 +5,7 @@
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package markup
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import (
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"bytes"
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"context"
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"errors"
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"fmt"
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@ -93,6 +94,12 @@ type Renderer interface {
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Render(ctx *RenderContext, input io.Reader, output io.Writer) error
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}
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// RendererContentDetector detects if the content can be rendered
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// by specified renderer
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type RendererContentDetector interface {
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CanRender(filename string, input io.Reader) bool
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}
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var (
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extRenderers = make(map[string]Renderer)
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renderers = make(map[string]Renderer)
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@ -117,6 +124,20 @@ func GetRendererByType(tp string) Renderer {
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return renderers[tp]
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}
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// DetectRendererType detects the markup type of the content
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func DetectRendererType(filename string, input io.Reader) string {
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buf, err := io.ReadAll(input)
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if err != nil {
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return ""
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}
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for _, renderer := range renderers {
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if detector, ok := renderer.(RendererContentDetector); ok && detector.CanRender(filename, bytes.NewReader(buf)) {
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return renderer.Name()
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}
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}
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return ""
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}
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// Render renders markup file to HTML with all specific handling stuff.
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func Render(ctx *RenderContext, input io.Reader, output io.Writer) error {
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if ctx.Type != "" {
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