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// Package quick provides simple, no-configuration source code highlighting.
package quick
import (
"io"
"github.com/alecthomas/chroma"
"github.com/alecthomas/chroma/formatters"
"github.com/alecthomas/chroma/lexers"
"github.com/alecthomas/chroma/styles"
)
// Highlight some text.
//
// Lexer, formatter and style may be empty, in which case a best-effort is made.
func Highlight(w io.Writer, source, lexer, formatter, style string) error {
// Determine lexer.
l := lexers.Get(lexer)
if l == nil {
l = lexers.Analyse(source)
}
if l == nil {
l = lexers.Fallback
}
l = chroma.Coalesce(l)
// Determine formatter.
f := formatters.Get(formatter)
if f == nil {
f = formatters.Fallback
}
// Determine style.
s := styles.Get(style)
if s == nil {
s = styles.Fallback
}
it, err := l.Tokenise(nil, source)
if err != nil {
return err
}
return f.Format(w, s, it)
}
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