mirror of
https://github.com/gohugoio/hugo.git
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597e418cb0
The main motivation of this commit is to add a `page.Page` interface to replace the very file-oriented `hugolib.Page` struct. This is all a preparation step for issue #5074, "pages from other data sources". But this also fixes a set of annoying limitations, especially related to custom output formats, and shortcodes. Most notable changes: * The inner content of shortcodes using the `{{%` as the outer-most delimiter will now be sent to the content renderer, e.g. Blackfriday. This means that any markdown will partake in the global ToC and footnote context etc. * The Custom Output formats are now "fully virtualized". This removes many of the current limitations. * The taxonomy list type now has a reference to the `Page` object. This improves the taxonomy template `.Title` situation and make common template constructs much simpler. See #5074 Fixes #5763 Fixes #5758 Fixes #5090 Fixes #5204 Fixes #4695 Fixes #5607 Fixes #5707 Fixes #5719 Fixes #3113 Fixes #5706 Fixes #5767 Fixes #5723 Fixes #5769 Fixes #5770 Fixes #5771 Fixes #5759 Fixes #5776 Fixes #5777 Fixes #5778
89 lines
2.2 KiB
Go
89 lines
2.2 KiB
Go
// Copyright 2019 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 resource
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import (
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"strings"
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"github.com/spf13/cast"
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)
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func Param(r ResourceParamsProvider, fallback map[string]interface{}, key interface{}) (interface{}, error) {
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keyStr, err := cast.ToStringE(key)
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if err != nil {
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return nil, err
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}
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keyStr = strings.ToLower(keyStr)
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result, _ := traverseDirectParams(r, fallback, keyStr)
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if result != nil {
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return result, nil
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}
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keySegments := strings.Split(keyStr, ".")
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if len(keySegments) == 1 {
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return nil, nil
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}
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return traverseNestedParams(r, fallback, keySegments)
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}
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func traverseDirectParams(r ResourceParamsProvider, fallback map[string]interface{}, key string) (interface{}, error) {
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keyStr := strings.ToLower(key)
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if val, ok := r.Params()[keyStr]; ok {
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return val, nil
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}
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if fallback == nil {
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return nil, nil
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}
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return fallback[keyStr], nil
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}
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func traverseNestedParams(r ResourceParamsProvider, fallback map[string]interface{}, keySegments []string) (interface{}, error) {
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result := traverseParams(keySegments, r.Params())
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if result != nil {
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return result, nil
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}
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if fallback != nil {
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result = traverseParams(keySegments, fallback)
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if result != nil {
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return result, nil
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}
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}
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// Didn't find anything, but also no problems.
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return nil, nil
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}
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func traverseParams(keys []string, m map[string]interface{}) interface{} {
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// Shift first element off.
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firstKey, rest := keys[0], keys[1:]
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result := m[firstKey]
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// No point in continuing here.
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if result == nil {
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return result
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}
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if len(rest) == 0 {
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// That was the last key.
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return result
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}
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// That was not the last key.
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return traverseParams(rest, cast.ToStringMap(result))
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}
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