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08fdca9d93
You can now create custom hook templates for code blocks, either one for all (`render-codeblock.html`) or for a given code language (e.g. `render-codeblock-go.html`). We also used this new hook to add support for diagrams in Hugo: * Goat (Go ASCII Tool) is built-in and enabled by default; just create a fenced code block with the language `goat` and start draw your Ascii diagrams. * Another popular alternative for diagrams in Markdown, Mermaid (supported by GitHub), can also be implemented with a simple template. See the Hugo documentation for more information. Updates #7765 Closes #9538 Fixes #9553 Fixes #8520 Fixes #6702 Fixes #9558
82 lines
1.8 KiB
Go
82 lines
1.8 KiB
Go
// Copyright 2022 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 render
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import (
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"bytes"
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"math/bits"
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"github.com/gohugoio/hugo/identity"
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"github.com/gohugoio/hugo/markup/converter"
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)
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type BufWriter struct {
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*bytes.Buffer
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}
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const maxInt = 1<<(bits.UintSize-1) - 1
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func (b *BufWriter) Available() int {
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return maxInt
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}
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func (b *BufWriter) Buffered() int {
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return b.Len()
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}
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func (b *BufWriter) Flush() error {
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return nil
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}
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type Context struct {
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*BufWriter
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positions []int
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ContextData
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}
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func (ctx *Context) PushPos(n int) {
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ctx.positions = append(ctx.positions, n)
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}
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func (ctx *Context) PopPos() int {
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i := len(ctx.positions) - 1
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p := ctx.positions[i]
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ctx.positions = ctx.positions[:i]
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return p
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}
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type ContextData interface {
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RenderContext() converter.RenderContext
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DocumentContext() converter.DocumentContext
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AddIdentity(id identity.Provider)
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}
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type RenderContextDataHolder struct {
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Rctx converter.RenderContext
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Dctx converter.DocumentContext
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IDs identity.Manager
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}
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func (ctx *RenderContextDataHolder) RenderContext() converter.RenderContext {
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return ctx.Rctx
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}
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func (ctx *RenderContextDataHolder) DocumentContext() converter.DocumentContext {
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return ctx.Dctx
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}
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func (ctx *RenderContextDataHolder) AddIdentity(id identity.Provider) {
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ctx.IDs.Add(id)
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}
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