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markdown.go
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62 lines (51 loc) · 1.26 KB
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package markdown
import (
"os"
"strings"
"github.com/charmbracelet/glamour"
)
func WithoutIndentation() glamour.TermRendererOption {
overrides := []byte(`
{
"document": {
"margin": 0
},
"code_block": {
"margin": 0
}
}`)
return glamour.WithStylesFromJSONBytes(overrides)
}
func WithWrap(w int) glamour.TermRendererOption {
return glamour.WithWordWrap(w)
}
type IOStreams interface {
TerminalTheme() string
}
func WithIO(io IOStreams) glamour.TermRendererOption {
style := os.Getenv("GLAMOUR_STYLE")
if style == "" || style == "auto" {
theme := io.TerminalTheme()
switch theme {
case "light", "dark":
style = theme
default:
style = "notty"
}
}
return glamour.WithStylePath(style)
}
func WithBaseURL(u string) glamour.TermRendererOption {
return glamour.WithBaseURL(u)
}
func Render(text string, opts ...glamour.TermRendererOption) (string, error) {
// Glamour rendering preserves carriage return characters in code blocks, but
// we need to ensure that no such characters are present in the output.
text = strings.ReplaceAll(text, "\r\n", "\n")
opts = append(opts, glamour.WithEmoji(), glamour.WithPreservedNewLines())
tr, err := glamour.NewTermRenderer(opts...)
if err != nil {
return "", err
}
return tr.Render(text)
}