tpl: Fix the remaining template funcs namespace issues

See #3042

2 files changed, 80 insertions, 0 deletions

diff --git a/tpl/cast/cast.go b/tpl/cast/cast.go
new file mode 100644
index 000000000..d2dfd745f
--- /dev/null
+++ b/tpl/cast/cast.go
@@ -0,0 +1,35 @@
+// Copyright 2017 The Hugo Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cast
+
+import (
+	_cast "github.com/spf13/cast"
+)
+
+// New returns a new instance of the cast-namespaced template functions.
+func New() *Namespace {
+	return &Namespace{}
+}
+
+// Namespace provides template functions for the "cast" namespace.
+type Namespace struct {
+}
+
+func (ns *Namespace) ToInt(v interface{}) (int, error) {
+	return _cast.ToIntE(v)
+}
+
+func (ns *Namespace) ToString(v interface{}) (string, error) {
+	return _cast.ToStringE(v)
+}
diff --git a/tpl/cast/init.go b/tpl/cast/init.go
new file mode 100644
index 000000000..acddaa91a
--- /dev/null
+++ b/tpl/cast/init.go
@@ -0,0 +1,45 @@
+// Copyright 2017 The Hugo Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cast
+
+import (
+	"github.com/spf13/hugo/deps"
+	"github.com/spf13/hugo/tpl/internal"
+)
+
+const name = "cast"
+
+func init() {
+	f := func(d *deps.Deps) *internal.TemplateFuncsNamespace {
+		ctx := New()
+
+		examples := [][2]string{
+			{`{{ "1234" | int | printf "%T" }}`, `int`},
+			{`{{ 1234 | string | printf "%T" }}`, `string`},
+		}
+
+		return &internal.TemplateFuncsNamespace{
+			Name:    name,
+			Context: func() interface{} { return ctx },
+			Aliases: map[string]interface{}{
+				"int":    ctx.ToInt,
+				"string": ctx.ToString,
+			},
+			Examples: examples,
+		}
+
+	}
+
+	internal.AddTemplateFuncsNamespace(f)
+}