Add Rst shortcode test

Fixes #2253

1 files changed, 23 insertions, 7 deletions

diff --git a/helpers/content.go b/helpers/content.go
index 94cc3e853..709dc8a97 100644
--- a/helpers/content.go
+++ b/helpers/content.go
@@ -469,6 +469,7 @@ func getAsciidocExecPath() string {
 	return path
 }
 
+// HasAsciidoc returns whether Asciidoctor or Asciidoc is installed on this computer.
 func HasAsciidoc() bool {
 	return getAsciidocExecPath() != ""
 }
@@ -497,20 +498,35 @@ func getAsciidocContent(content []byte) string {
 	return out.String()
 }
 
-// getRstContent calls the Python script rst2html as an external helper
-// to convert reStructuredText content to HTML.
-func getRstContent(content []byte) string {
-	cleanContent := bytes.Replace(content, SummaryDivider, []byte(""), 1)
+// HasRst returns whether rst2html is installed on this computer.
+func HasRst() bool {
+	return getRstExecPath() != ""
+}
 
+func getRstExecPath() string {
 	path, err := exec.LookPath("rst2html")
 	if err != nil {
 		path, err = exec.LookPath("rst2html.py")
 		if err != nil {
-			jww.ERROR.Println("rst2html / rst2html.py not found in $PATH: Please install.\n",
-				"                 Leaving reStructuredText content unrendered.")
-			return (string(content))
+			return ""
 		}
 	}
+	return path
+}
+
+// getRstContent calls the Python script rst2html as an external helper
+// to convert reStructuredText content to HTML.
+func getRstContent(content []byte) string {
+	cleanContent := bytes.Replace(content, SummaryDivider, []byte(""), 1)
+
+	path := getRstExecPath()
+
+	if path == "" {
+		jww.ERROR.Println("rst2html / rst2html.py not found in $PATH: Please install.\n",
+			"                 Leaving reStructuredText content unrendered.")
+		return (string(content))
+
+	}
 
 	cmd := exec.Command(path, "--leave-comments")
 	cmd.Stdin = bytes.NewReader(cleanContent)