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// Package styles provides chroma styles based on the chroma styles but removing
// the backgrounds.
package styles
import (
"sync"
"github.com/alecthomas/chroma/v2"
cstyles "github.com/alecthomas/chroma/v2/styles"
)
// styles is the set of styles with their background colors removed.
var styles = struct {
styles map[string]*chroma.Style
sync.Mutex
}{
styles: make(map[string]*chroma.Style),
}
// Get retrieves the equivalent chroma style.
func Get(name string) *chroma.Style {
styles.Lock()
defer styles.Unlock()
if _, ok := styles.styles[name]; !ok {
// get original style
s := cstyles.Get(name)
// create new entry map
m := make(chroma.StyleEntries)
for _, typ := range s.Types() {
// skip background
if typ == chroma.Background {
continue
}
z := s.Get(typ)
// unset background
z.Background = chroma.Colour(0)
m[typ] = z.String()
}
styles.styles[name] = chroma.MustNewStyle(s.Name, m)
}
return styles.styles[name]
}
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