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https://github.com/gohugoio/hugo.git
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parent
7eba37ae9b
commit
1bc93021e3
3 changed files with 38 additions and 9 deletions
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@ -17,6 +17,7 @@ package encoding
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import (
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"encoding/base64"
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"encoding/json"
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"errors"
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"html/template"
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"github.com/spf13/cast"
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@ -51,9 +52,32 @@ func (ns *Namespace) Base64Encode(content interface{}) (string, error) {
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return base64.StdEncoding.EncodeToString([]byte(conv)), nil
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}
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// Jsonify encodes a given object to JSON.
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func (ns *Namespace) Jsonify(v interface{}) (template.HTML, error) {
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b, err := json.Marshal(v)
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// Jsonify encodes a given object to JSON. To pretty print the JSON, pass an
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// optional first argument of the indent string, such as " ".
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func (ns *Namespace) Jsonify(args ...interface{}) (template.HTML, error) {
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var (
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b []byte
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err error
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)
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switch len(args) {
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case 0:
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return "", nil
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case 1:
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b, err = json.Marshal(args[0])
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case 2:
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var indent string
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indent, err = cast.ToStringE(args[0])
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if err != nil {
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break
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}
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b, err = json.MarshalIndent(args[1], "", indent)
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default:
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err = errors.New("too many arguments to jsonify")
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}
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if err != nil {
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return "", err
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}
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@ -83,17 +83,22 @@ func TestJsonify(t *testing.T) {
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ns := New()
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for _, test := range []struct {
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indent []interface{}
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v interface{}
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expect interface{}
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}{
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{[]string{"a", "b"}, template.HTML(`["a","b"]`)},
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{tstNoStringer{}, template.HTML("{}")},
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{nil, template.HTML("null")},
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{nil, []string{"a", "b"}, template.HTML(`["a","b"]`)},
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{[]interface{}{" "}, []string{"a", "b"}, template.HTML("[\n \"a\",\n \"b\"\n]")},
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{nil, tstNoStringer{}, template.HTML("{}")},
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{nil, nil, template.HTML("null")},
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// errors
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{math.NaN(), false},
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{nil, math.NaN(), false},
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{[]interface{}{tstNoStringer{}}, []string{"a", "b"}, false},
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} {
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result, err := ns.Jsonify(test.v)
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args := append(test.indent, test.v)
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result, err := ns.Jsonify(args...)
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if b, ok := test.expect.(bool); ok && !b {
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c.Assert(err, qt.Not(qt.IsNil))
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@ -48,11 +48,11 @@ func init() {
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[]string{"jsonify"},
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[][2]string{
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{`{{ (slice "A" "B" "C") | jsonify }}`, `["A","B","C"]`},
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{`{{ (slice "A" "B" "C") | jsonify " "}}`, "[\n \"A\",\n \"B\",\n \"C\"\n]"},
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},
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)
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return ns
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}
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internal.AddTemplateFuncsNamespace(f)
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