Fix quotes issue in TrackLink regexp.

Author: knadh

models/models.go

@@ -98,11 +98,11 @@ type regTplFunc struct {
 
 var regTplFuncs = []regTplFunc{
 	// Regular expression for matching {{ TrackLink "http://link.com" }} in the template
-	// and substituting it with {{ Track "http://link.com" . }} (the dot context)
+	// and substituting it with {{ TrackLink "http://link.com" . }} (the dot context)
 	// before compilation. This is to make linking easier for users.
 	{
-		regExp:  regexp.MustCompile(`{{(\s+)?TrackLink(\s+)?(.+?)(\s+)?}}`),
-		replace: `{{ TrackLink $3 . }}`,
+		regExp:  regexp.MustCompile(`{{\s*TrackLink\s+"([^"]+)"\s*}}`),
+		replace: `{{ TrackLink "$1" . }}`,
 	},
 
 	// Convert the shorthand https://google.com@TrackLink to {{ TrackLink ... }}.
@@ -543,6 +543,7 @@ func (c *Campaign) CompileTemplate(f template.FuncMap) error {
 	for _, r := range regTplFuncs {
 		body = r.regExp.ReplaceAllString(body, r.replace)
 	}
+
 	baseTPL, err := template.New(BaseTpl).Funcs(f).Parse(body)
 	if err != nil {
 		return fmt.Errorf("error compiling base template: %v", err)