refactor gophermap template handling and add markdown conversion

1 files changed, 52 insertions, 0 deletions

diff --git a/gopher/gophermap/mdconv/convert.go b/gopher/gophermap/mdconv/convert.go
new file mode 100644
index 0000000..5d4da08
--- /dev/null
+++ b/gopher/gophermap/mdconv/convert.go
@@ -0,0 +1,52 @@
+package mdconv
+
+import (
+	"io"
+	"text/template"
+
+	"tildegit.org/tjp/sliderule/gopher"
+	"tildegit.org/tjp/sliderule/gopher/gophermap/internal"
+)
+
+func Convert(wr io.Writer, doc gopher.MapDocument, overrides *template.Template) error {
+	tmpl, err := baseTmpl.Clone()
+	if err != nil {
+		return err
+	}
+
+	tmpl, err = internal.AddOverrides(tmpl, overrides)
+	if err != nil {
+		return err
+	}
+
+	for _, item := range internal.RenderItems(doc) {
+		if err := tmpl.ExecuteTemplate(wr, item.Template, item.Object); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+var baseTmpl = template.Must(template.New("mdconv").Parse(`
+{{ define "header" }}{{ end }}
+
+{{ define "message" -}}
+` + "```" + `
+{{.}}
+` + "```" + `
+
+{{ end }}
+
+{{ define "link" -}}
+[{{.Display}}]({{ if .Hostname | and .Port }}gopher://{{.Hostname}}:{{.Port}}{{ end }}{{.Selector}})
+
+{{ end }}
+
+{{ define "image" -}}
+![{{.Display}}]({{ if .Hostname | and .Port }}gopher://{{.Hostname}}:{{.Port}}{{ end }}{{.Selector}})
+
+{{ end }}
+
+{{ define "footer" }}{{ end }}
+`))