diff --git a/tpl/encoding/encoding.go b/tpl/encoding/encoding.go index 48699b52d..09e2b94bc 100644 --- a/tpl/encoding/encoding.go +++ b/tpl/encoding/encoding.go @@ -1,4 +1,4 @@ -// Copyright 2017 The Hugo Authors. All rights reserved. +// Copyright 2020 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. @@ -52,8 +52,11 @@ func (ns *Namespace) Base64Encode(content interface{}) (string, error) { return base64.StdEncoding.EncodeToString([]byte(conv)), nil } -// Jsonify encodes a given object to JSON. To pretty print the JSON, pass an -// optional first argument of the indent string, such as " ". +// Jsonify encodes a given object to JSON. To pretty print the JSON, pass a map +// or dictionary of options as the first argument. Supported options are +// "prefix" and "indent". Each JSON element in the output will begin on a new +// line beginning with prefix followed by one or more copies of indent according +// to the indentation nesting. func (ns *Namespace) Jsonify(args ...interface{}) (template.HTML, error) { var ( b []byte @@ -66,14 +69,14 @@ func (ns *Namespace) Jsonify(args ...interface{}) (template.HTML, error) { case 1: b, err = json.Marshal(args[0]) case 2: - var indent string + var opts map[string]string - indent, err = cast.ToStringE(args[0]) + opts, err = cast.ToStringMapStringE(args[0]) if err != nil { break } - b, err = json.MarshalIndent(args[1], "", indent) + b, err = json.MarshalIndent(args[1], opts["prefix"], opts["indent"]) default: err = errors.New("too many arguments to jsonify") } diff --git a/tpl/encoding/encoding_test.go b/tpl/encoding/encoding_test.go index 2f0988ff3..815aa2613 100644 --- a/tpl/encoding/encoding_test.go +++ b/tpl/encoding/encoding_test.go @@ -1,4 +1,4 @@ -// Copyright 2017 The Hugo Authors. All rights reserved. +// Copyright 2020 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. @@ -83,20 +83,27 @@ func TestJsonify(t *testing.T) { ns := New() for _, test := range []struct { - indent []interface{} + opts interface{} v interface{} expect interface{} }{ {nil, []string{"a", "b"}, template.HTML(`["a","b"]`)}, - {[]interface{}{" "}, []string{"a", "b"}, template.HTML("[\n \"a\",\n \"b\"\n]")}, + {map[string]string{"indent": ""}, []string{"a", "b"}, template.HTML("[\n\"a\",\n\"b\"\n]")}, + {map[string]string{"prefix": "
"}, []string{"a", "b"}, template.HTML("[\n
\"a\",\n
\"b\"\n
]")}, + {map[string]string{"prefix": "
", "indent": ""}, []string{"a", "b"}, template.HTML("[\n
\"a\",\n
\"b\"\n
]")}, {nil, tstNoStringer{}, template.HTML("{}")}, {nil, nil, template.HTML("null")}, // errors {nil, math.NaN(), false}, - {[]interface{}{tstNoStringer{}}, []string{"a", "b"}, false}, + {tstNoStringer{}, []string{"a", "b"}, false}, } { + args := []interface{}{} - args := append(test.indent, test.v) + if test.opts != nil { + args = append(args, test.opts) + } + + args = append(args, test.v) result, err := ns.Jsonify(args...) diff --git a/tpl/encoding/init.go b/tpl/encoding/init.go index 8ec9f1a58..f97b17182 100644 --- a/tpl/encoding/init.go +++ b/tpl/encoding/init.go @@ -1,4 +1,4 @@ -// Copyright 2017 The Hugo Authors. All rights reserved. +// Copyright 2020 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. @@ -48,7 +48,7 @@ func init() { []string{"jsonify"}, [][2]string{ {`{{ (slice "A" "B" "C") | jsonify }}`, `["A","B","C"]`}, - {`{{ (slice "A" "B" "C") | jsonify " "}}`, "[\n \"A\",\n \"B\",\n \"C\"\n]"}, + {`{{ (slice "A" "B" "C") | jsonify (dict "indent" " ") }}`, "[\n \"A\",\n \"B\",\n \"C\"\n]"}, }, )