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