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Pass .RenderShortcodes' Page to render hooks
Fixes gohugoio#12356
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| // Copyright 2024 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 hugocontext | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "strconv" | ||
|
|
||
| "github.com/gohugoio/hugo/markup/goldmark/internal/render" | ||
| "github.com/yuin/goldmark" | ||
| "github.com/yuin/goldmark/ast" | ||
| "github.com/yuin/goldmark/parser" | ||
| "github.com/yuin/goldmark/renderer" | ||
| "github.com/yuin/goldmark/text" | ||
| "github.com/yuin/goldmark/util" | ||
| ) | ||
|
|
||
| func New() goldmark.Extender { | ||
| return &hugoContextExtension{} | ||
| } | ||
|
|
||
| // Wrap wraps the given byte slice in a Hugo context that used to determine the correct Page | ||
| // in .RenderShortcodes. | ||
| func Wrap(b []byte, pid uint64) []byte { | ||
| pre := fmt.Sprintf("%s pid=%d%s", prefix, pid, endDelim) | ||
| b = append([]byte(pre), b...) | ||
| b = append(b, prefix...) | ||
| b = append(b, closingDelim...) | ||
|
|
||
| return b | ||
| } | ||
|
|
||
| var kindHugoContext = ast.NewNodeKind("HugoContext") | ||
|
|
||
| // HugoContext is a node that represents a Hugo context. | ||
| type HugoContext struct { | ||
| ast.BaseInline | ||
|
|
||
| Closing bool | ||
|
|
||
| // Internal page ID. Not persisted. | ||
| Pid uint64 | ||
| } | ||
|
|
||
| // Dump implements Node.Dump. | ||
| func (n *HugoContext) Dump(source []byte, level int) { | ||
| m := map[string]string{} | ||
| m["Pid"] = fmt.Sprintf("%v", n.Pid) | ||
| ast.DumpHelper(n, source, level, m, nil) | ||
| } | ||
|
|
||
| func (n *HugoContext) parseAttrs(attrBytes []byte) { | ||
| keyPairs := bytes.Split(attrBytes, []byte(" ")) | ||
| for _, keyPair := range keyPairs { | ||
| kv := bytes.Split(keyPair, []byte("=")) | ||
| if len(kv) != 2 { | ||
| continue | ||
| } | ||
| key := string(kv[0]) | ||
| val := string(kv[1]) | ||
| switch key { | ||
| case "pid": | ||
| pid, _ := strconv.ParseUint(val, 10, 64) | ||
| n.Pid = pid | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func (h *HugoContext) Kind() ast.NodeKind { | ||
| return kindHugoContext | ||
| } | ||
|
|
||
| var ( | ||
| prefix = []byte("{{__hugo_ctx") | ||
| endDelim = []byte("}}") | ||
| closingDelim = []byte("/}}") | ||
| ) | ||
|
|
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| var _ parser.InlineParser = (*hugoContextParser)(nil) | ||
|
|
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| type hugoContextParser struct{} | ||
|
|
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| func (s *hugoContextParser) Parse(parent ast.Node, block text.Reader, pc parser.Context) ast.Node { | ||
| line, _ := block.PeekLine() | ||
| if !bytes.HasPrefix(line, prefix) { | ||
| return nil | ||
| } | ||
| end := bytes.Index(line, endDelim) | ||
| if end == -1 { | ||
| return nil | ||
| } | ||
|
|
||
| block.Advance(end + len(endDelim)) | ||
|
|
||
| if line[end-1] == '/' { | ||
| return &HugoContext{Closing: true} | ||
| } | ||
|
|
||
| attrBytes := line[len(prefix)+1 : end] | ||
| h := &HugoContext{} | ||
| h.parseAttrs(attrBytes) | ||
| return h | ||
| } | ||
|
|
||
| func (a *hugoContextParser) Trigger() []byte { | ||
| return []byte{'{'} | ||
| } | ||
|
|
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| type hugoContextRenderer struct{} | ||
|
|
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| func (r *hugoContextRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) { | ||
| reg.Register(kindHugoContext, r.handleHugoContext) | ||
| } | ||
|
|
||
| func (r *hugoContextRenderer) handleHugoContext(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) { | ||
| if !entering { | ||
| return ast.WalkContinue, nil | ||
| } | ||
|
|
||
| hctx := node.(*HugoContext) | ||
| ctx, ok := w.(*render.Context) | ||
| if !ok { | ||
| return ast.WalkContinue, nil | ||
| } | ||
| if hctx.Closing { | ||
| _ = ctx.PopPid() | ||
| } else { | ||
| ctx.PushPid(hctx.Pid) | ||
| } | ||
| return ast.WalkContinue, nil | ||
| } | ||
|
|
||
| type hugoContextExtension struct{} | ||
|
|
||
| func (a *hugoContextExtension) Extend(m goldmark.Markdown) { | ||
| m.Parser().AddOptions( | ||
| parser.WithInlineParsers( | ||
| util.Prioritized(&hugoContextParser{}, 50), | ||
| ), | ||
| ) | ||
|
|
||
| m.Renderer().AddOptions( | ||
| renderer.WithNodeRenderers( | ||
| util.Prioritized(&hugoContextRenderer{}, 50), | ||
| ), | ||
| ) | ||
| } |
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