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package mdconv
import (
"fmt"
"io"
"text/template"
"tildegit.org/tjp/gus/gemtext"
)
func Convert(wr io.Writer, doc gemtext.Document, overrides *template.Template) error {
tmpl, err := baseTmpl.Clone()
if err != nil {
return err
}
if overrides != nil {
for _, override := range overrides.Templates() {
tmpl, err = tmpl.AddParseTree(override.Name(), override.Tree)
if err != nil {
return err
}
}
}
return tmpl.ExecuteTemplate(wr, "mdconv", doc)
}
var baseTmpl = template.Must(template.New("mdconv").Parse(fmt.Sprintf((`
{{block "header" .}}{{end -}}
{{range . -}}
{{if .Type | eq %d}}{{block "textline" . -}}
{{. -}}
{{end -}}
{{else if .Type | eq %d}}{{block "linkline" . -}}
=> [{{if eq .Label ""}}{{.URL}}{{else}}{{.Label}}{{end}}]({{.URL}})
{{end -}}
{{else if .Type | eq %d}}{{block "preformattoggleline" . -}}
` + "```" + `
{{end -}}
{{else if .Type | eq %d}}{{block "preformattedtextline" . -}}
{{. -}}
{{end -}}
{{else if .Type | eq %d}}{{block "heading1line" . -}}
# {{.Body}}
{{end -}}
{{else if .Type | eq %d}}{{block "heading2line" . -}}
## {{.Body}}
{{end -}}
{{else if .Type | eq %d}}{{block "heading3line" . -}}
### {{.Body}}
{{end -}}
{{else if .Type | eq %d}}{{block "listitemline" . -}}
* {{.Body}}
{{end -}}
{{else if .Type | eq %d}}{{block "quoteline" . -}}
> {{.Body}}
{{end -}}
{{end -}}
{{end -}}
{{block "footer" .}}{{end -}}
`)[1:],
gemtext.LineTypeText,
gemtext.LineTypeLink,
gemtext.LineTypePreformatToggle,
gemtext.LineTypePreformattedText,
gemtext.LineTypeHeading1,
gemtext.LineTypeHeading2,
gemtext.LineTypeHeading3,
gemtext.LineTypeListItem,
gemtext.LineTypeQuote,
)))
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