From: Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com>
Date: Thu, 3 Mar 2016 14:53:15 +0000 (+0100)
Subject: Add plainify template function
X-Git-Tag: v0.16~204
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e5e1bcc2;p=brevno-suite%2Fhugo

Add plainify template function

To strip away any HTML. May be useful for the .Title in head etc.

People may shoot themself in the foot with this, maybe ...

The replacement function is pretty fast.
---

diff --git a/docs/content/templates/functions.md b/docs/content/templates/functions.md
index 984efc9b..ef576bb6 100644
--- a/docs/content/templates/functions.md
+++ b/docs/content/templates/functions.md
@@ -448,6 +448,12 @@ Runs the string through the Markdown processor. The result will be declared as "
 
 e.g. `{{ .Title | markdownify }}`
 
+### plainify
+
+Strips any HTML and returns the plain text version.
+
+e.g. `{{ "<b>BatMan</b>" | plainify }}` → "BatMan"
+
 ### pluralize
 Pluralize the given word with a set of common English pluralization rules.
 
diff --git a/tpl/template_funcs.go b/tpl/template_funcs.go
index 29bb6dd0..5fb496c1 100644
--- a/tpl/template_funcs.go
+++ b/tpl/template_funcs.go
@@ -1169,9 +1169,21 @@ func emojify(in interface{}) (template.HTML, error) {
 	if err != nil {
 		return "", err
 	}
+
 	return template.HTML(helpers.Emojify([]byte(str))), nil
 }
 
+// plainify strips any HTML and returns the plain text version.
+func plainify(in interface{}) (string, error) {
+	s, err := cast.ToStringE(in)
+
+	if err != nil {
+		return "", err
+	}
+
+	return helpers.StripHTML(s), nil
+}
+
 func refPage(page interface{}, ref, methodName string) template.HTML {
 	value := reflect.ValueOf(page)
 
@@ -1674,6 +1686,7 @@ func init() {
 		"mul":          func(a, b interface{}) (interface{}, error) { return helpers.DoArithmetic(a, b, '*') },
 		"ne":           ne,
 		"partial":      partial,
+		"plainify":     plainify,
 		"pluralize":    pluralize,
 		"readDir":      readDir,
 		"ref":          ref,
diff --git a/tpl/template_funcs_test.go b/tpl/template_funcs_test.go
index 983a97d2..77cd52a3 100644
--- a/tpl/template_funcs_test.go
+++ b/tpl/template_funcs_test.go
@@ -108,6 +108,7 @@ safeHTML: {{ "Bat&Man" | safeHTML | safeHTML }}
 safeCSS: {{ "Bat&Man" | safeCSS | safeCSS }}
 safeURL: {{ "http://gohugo.io" | safeURL | safeURL }}
 safeJS: {{ "(1*2)" | safeJS | safeJS }}
+plainify: {{ plainify  "Hello <strong>world</strong>, gophers!" }}
 `
 	expected := `chomp: <p>Blockhead</p>
 dateFormat: Wednesday, Jan 21, 2015
@@ -151,6 +152,7 @@ safeHTML: Bat&Man
 safeCSS: Bat&amp;Man
 safeURL: http://gohugo.io
 safeJS: (1*2)
+plainify: Hello world, gophers!
 `
 
 	var b bytes.Buffer