markdown/markdown.go (view raw)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 |
package markdown
import (
"fmt"
"os"
gotmpl "text/template"
"time"
"git.icyphox.sh/vite/config"
"git.icyphox.sh/vite/markdown/template"
bf "git.icyphox.sh/grayfriday"
)
var (
bfFlags = bf.UseXHTML | bf.Smartypants | bf.SmartypantsFractions |
bf.SmartypantsDashes | bf.NofollowLinks | bf.FootnoteReturnLinks
bfExts = bf.NoIntraEmphasis | bf.Tables | bf.FencedCode | bf.Autolink |
bf.Strikethrough | bf.SpaceHeadings | bf.BackslashLineBreak |
bf.AutoHeadingIDs | bf.HeadingIDs | bf.Footnotes | bf.NoEmptyLineBeforeBlock
)
type Output struct {
HTML []byte
Meta Matter
}
// Renders markdown to html, and fetches metadata.
func (out *Output) RenderMarkdown(source []byte) error {
md := MarkdownDoc{}
if err := md.Extract(source); err != nil {
return fmt.Errorf("markdown: %w", err)
}
out.HTML = bf.Run(
md.Body,
bf.WithNoExtensions(),
bf.WithRenderer(bf.NewHTMLRenderer(bf.HTMLRendererParameters{Flags: bfFlags})),
bf.WithExtensions(bfExts),
)
out.Meta = md.Frontmatter
return nil
}
// Renders out.HTML into dst html file, using the template specified
// in the frontmatter. data is the template struct.
func (out *Output) RenderHTML(dst, tmplDir string, data interface{}) error {
metaTemplate := out.Meta["template"]
if metaTemplate == "" {
metaTemplate = config.Config.DefaultTemplate
}
tmpl := template.NewTmpl()
tmpl.SetFuncs(gotmpl.FuncMap{
"parsedate": func(s string) time.Time {
date, _ := time.Parse("2006-01-02", s)
return date
},
})
if err := tmpl.Load(tmplDir); err != nil {
return err
}
w, err := os.Create(dst)
if err != nil {
return err
}
if err = tmpl.ExecuteTemplate(w, metaTemplate, data); err != nil {
return err
}
return nil
}
|