mirror of
https://github.com/gohugoio/hugo.git
synced 2024-06-30 16:37:35 +00:00
a3fe5e5e35
This means that you can now do:
```
{{ range where .Site.Pages "Params.MYPARAM" "foo" }}
```
136 lines
3.2 KiB
Go
136 lines
3.2 KiB
Go
// Copyright 2018 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package maps
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import (
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"strings"
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"github.com/gobwas/glob"
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"github.com/spf13/cast"
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)
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// ToLower makes all the keys in the given map lower cased and will do so
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// recursively.
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// Notes:
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// * This will modify the map given.
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// * Any nested map[interface{}]interface{} will be converted to Params.
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func ToLower(m Params) {
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for k, v := range m {
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var retyped bool
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switch v.(type) {
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case map[interface{}]interface{}:
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var p Params = cast.ToStringMap(v)
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v = p
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ToLower(p)
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retyped = true
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case map[string]interface{}:
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var p Params = v.(map[string]interface{})
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v = p
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ToLower(p)
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retyped = true
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}
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lKey := strings.ToLower(k)
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if retyped || k != lKey {
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delete(m, k)
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m[lKey] = v
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}
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}
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}
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func ToStringMapE(in interface{}) (map[string]interface{}, error) {
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switch in.(type) {
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case Params:
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return in.(Params), nil
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default:
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return cast.ToStringMapE(in)
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}
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}
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func ToStringMap(in interface{}) map[string]interface{} {
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m, _ := ToStringMapE(in)
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return m
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}
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type keyRename struct {
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pattern glob.Glob
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newKey string
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}
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// KeyRenamer supports renaming of keys in a map.
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type KeyRenamer struct {
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renames []keyRename
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}
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// NewKeyRenamer creates a new KeyRenamer given a list of pattern and new key
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// value pairs.
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func NewKeyRenamer(patternKeys ...string) (KeyRenamer, error) {
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var renames []keyRename
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for i := 0; i < len(patternKeys); i += 2 {
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g, err := glob.Compile(strings.ToLower(patternKeys[i]), '/')
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if err != nil {
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return KeyRenamer{}, err
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}
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renames = append(renames, keyRename{pattern: g, newKey: patternKeys[i+1]})
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}
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return KeyRenamer{renames: renames}, nil
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}
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func (r KeyRenamer) getNewKey(keyPath string) string {
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for _, matcher := range r.renames {
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if matcher.pattern.Match(keyPath) {
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return matcher.newKey
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}
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}
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return ""
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}
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// Rename renames the keys in the given map according
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// to the patterns in the current KeyRenamer.
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func (r KeyRenamer) Rename(m map[string]interface{}) {
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r.renamePath("", m)
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}
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func (KeyRenamer) keyPath(k1, k2 string) string {
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k1, k2 = strings.ToLower(k1), strings.ToLower(k2)
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if k1 == "" {
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return k2
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} else {
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return k1 + "/" + k2
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}
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}
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func (r KeyRenamer) renamePath(parentKeyPath string, m map[string]interface{}) {
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for key, val := range m {
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keyPath := r.keyPath(parentKeyPath, key)
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switch val.(type) {
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case map[interface{}]interface{}:
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val = cast.ToStringMap(val)
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r.renamePath(keyPath, val.(map[string]interface{}))
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case map[string]interface{}:
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r.renamePath(keyPath, val.(map[string]interface{}))
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}
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newKey := r.getNewKey(keyPath)
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if newKey != "" {
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delete(m, key)
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m[newKey] = val
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}
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}
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}
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