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58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
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package formatters
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import (
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"io"
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"sort"
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"github.com/alecthomas/chroma"
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"github.com/alecthomas/chroma/formatters/html"
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"github.com/alecthomas/chroma/formatters/svg"
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)
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var (
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// NoOp formatter.
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NoOp = Register("noop", chroma.FormatterFunc(func(w io.Writer, s *chroma.Style, iterator chroma.Iterator) error {
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for t := iterator(); t != chroma.EOF; t = iterator() {
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if _, err := io.WriteString(w, t.Value); err != nil {
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return err
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}
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}
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return nil
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}))
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// Default HTML formatter outputs self-contained HTML.
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htmlFull = Register("html", html.New(html.Standalone(true), html.WithClasses(true))) // nolint
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SVG = Register("svg", svg.New(svg.EmbedFont("Liberation Mono", svg.FontLiberationMono, svg.WOFF)))
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)
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// Fallback formatter.
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var Fallback = NoOp
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// Registry of Formatters.
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var Registry = map[string]chroma.Formatter{}
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// Names of registered formatters.
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func Names() []string {
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out := []string{}
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for name := range Registry {
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out = append(out, name)
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}
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sort.Strings(out)
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return out
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}
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// Get formatter by name.
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//
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// If the given formatter is not found, the Fallback formatter will be returned.
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func Get(name string) chroma.Formatter {
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if f, ok := Registry[name]; ok {
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return f
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}
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return Fallback
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}
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// Register a named formatter.
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func Register(name string, formatter chroma.Formatter) chroma.Formatter {
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Registry[name] = formatter
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return formatter
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}
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