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Generate chroma theme from our style settings

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This commit is contained in:
Christian Muehlhaeuser
2019-12-14 20:52:20 +01:00
parent dedafedbe8
commit aeda17f93a
2 changed files with 87 additions and 3 deletions
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ansi/codeblock.go
+54 -1
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@@ -3,7 +3,9 @@ package ansi
import (
"io"
"github.com/alecthomas/chroma"
"github.com/alecthomas/chroma/quick"
"github.com/alecthomas/chroma/styles"
)
type CodeBlockElement struct {
@@ -11,6 +13,22 @@ type CodeBlockElement struct {
Language string
}
func chromaColor(style StylePrimitive) string {
var s string
if style.Color != nil {
s = *style.Color
}
if style.BackgroundColor != nil {
if s != "" {
s += " "
}
s += "bg:" + *style.BackgroundColor
}
return s
}
func (e *CodeBlockElement) Render(w io.Writer, ctx RenderContext) error {
bs := ctx.blockStack
@@ -25,6 +43,41 @@ func (e *CodeBlockElement) Render(w io.Writer, ctx RenderContext) error {
}
theme := rules.Theme
styles.Register(chroma.MustNewStyle("charm",
chroma.StyleEntries{
chroma.Text: chromaColor(rules.Text),
chroma.Error: chromaColor(rules.Error),
chroma.Comment: chromaColor(rules.Comment),
chroma.CommentPreproc: chromaColor(rules.CommentPreproc),
chroma.Keyword: chromaColor(rules.Keyword),
chroma.KeywordReserved: chromaColor(rules.KeywordReserved),
chroma.KeywordNamespace: chromaColor(rules.KeywordNamespace),
chroma.KeywordType: chromaColor(rules.KeywordType),
chroma.Operator: chromaColor(rules.Operator),
chroma.Punctuation: chromaColor(rules.Punctuation),
chroma.Name: chromaColor(rules.Name),
chroma.NameBuiltin: chromaColor(rules.NameBuiltin),
chroma.NameTag: chromaColor(rules.NameTag),
chroma.NameAttribute: chromaColor(rules.NameAttribute),
chroma.NameClass: chromaColor(rules.NameClass),
chroma.NameConstant: chromaColor(rules.NameConstant),
chroma.NameDecorator: chromaColor(rules.NameDecorator),
chroma.NameException: chromaColor(rules.NameException),
chroma.NameFunction: chromaColor(rules.NameFunction),
chroma.NameOther: chromaColor(rules.NameOther),
chroma.Literal: chromaColor(rules.Literal),
chroma.LiteralNumber: chromaColor(rules.LiteralNumber),
chroma.LiteralDate: chromaColor(rules.LiteralDate),
chroma.LiteralString: chromaColor(rules.LiteralString),
chroma.LiteralStringEscape: chromaColor(rules.LiteralStringEscape),
chroma.GenericDeleted: chromaColor(rules.GenericDeleted),
chroma.GenericEmph: chromaColor(rules.GenericEmph),
chroma.GenericInserted: chromaColor(rules.GenericInserted),
chroma.GenericStrong: chromaColor(rules.GenericStrong),
chroma.GenericSubheading: chromaColor(rules.GenericSubheading),
chroma.Background: chromaColor(rules.Background),
}))
iw := &IndentWriter{
Indent: indent + margin,
IndentFunc: func(wr io.Writer) {
@@ -37,7 +90,7 @@ func (e *CodeBlockElement) Render(w io.Writer, ctx RenderContext) error {
if len(theme) > 0 {
renderText(iw, bs.Current().Style.StylePrimitive, rules.BlockPrefix)
err := quick.Highlight(iw, e.Code, e.Language, "terminal16m", theme)
err := quick.Highlight(iw, e.Code, e.Language, "terminal256", theme)
renderText(iw, bs.Current().Style.StylePrimitive, rules.BlockSuffix)
return err
}