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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
73 lines
2.2 KiB
Go
73 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 org converts Emacs Org-Mode to HTML.
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package org
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import (
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"bytes"
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"github.com/gohugoio/hugo/identity"
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"github.com/gohugoio/hugo/markup/converter"
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"github.com/niklasfasching/go-org/org"
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"github.com/spf13/afero"
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)
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// Provider is the package entry point.
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var Provider converter.ProviderProvider = provide{}
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type provide struct{}
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func (p provide) New(cfg converter.ProviderConfig) (converter.Provider, error) {
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return converter.NewProvider("org", func(ctx converter.DocumentContext) (converter.Converter, error) {
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return &orgConverter{
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ctx: ctx,
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cfg: cfg,
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}, nil
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}), nil
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}
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type orgConverter struct {
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ctx converter.DocumentContext
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cfg converter.ProviderConfig
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}
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func (c *orgConverter) Convert(ctx converter.RenderContext) (converter.Result, error) {
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logger := c.cfg.Logger
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config := org.New()
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config.Log = logger.Warn()
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config.ReadFile = func(filename string) ([]byte, error) {
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return afero.ReadFile(c.cfg.ContentFs, filename)
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}
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writer := org.NewHTMLWriter()
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writer.HighlightCodeBlock = func(source, lang string, inline bool) string {
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highlightedSource, err := c.cfg.Highlight(source, lang, "")
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if err != nil {
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logger.Errorf("Could not highlight source as lang %s. Using raw source.", lang)
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return source
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}
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return highlightedSource
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}
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html, err := config.Parse(bytes.NewReader(ctx.Src), c.ctx.DocumentName).Write(writer)
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if err != nil {
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logger.Errorf("Could not render org: %s. Using unrendered content.", err)
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return converter.Bytes(ctx.Src), nil
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}
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return converter.Bytes([]byte(html)), nil
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}
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func (c *orgConverter) Supports(feature identity.Identity) bool {
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return false
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}
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