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69 lines
2.3 KiB
TypeScript
69 lines
2.3 KiB
TypeScript
/**
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* Copyright (c) 2024 taskylizard
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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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*
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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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*/
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import type { MarkdownRenderer } from 'vitepress'
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import { headers } from '../transformer/constants'
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const titles = Object.keys(headers).map((key) => headers[key].title)
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export const headersPlugin = (md: MarkdownRenderer) => {
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// Add the Feedback component in the heading, before the link.
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//
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// Adding it after the link is closed prevents vitepress from properly
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// indexing the file's content.
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md.renderer.rules.heading_open = (tokens, idx, options, env, self) => {
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const result = self.renderToken(tokens, idx, options)
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const idxClose =
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idx +
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tokens.slice(idx).findIndex((token) => token.type === 'heading_close')
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if (idxClose <= idx) return result
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const level = tokens[idx].tag.slice(1)
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if (!titles.includes(env.frontmatter.title) || level !== '2') return result
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// Find the token for the link.
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//
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// The token after `heading_open` contains the link as a child token.
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const children = tokens[idx + 1].children || []
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const linkOpenToken = children.findLast((c) => c.type === 'link_open')
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if (!linkOpenToken) return result
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const heading = tokens[idxClose - 1]
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linkOpenToken.meta = linkOpenToken.meta || {}
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linkOpenToken.meta.feedback = {
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heading: heading.content
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}
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return result
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}
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let defaultRender = md.renderer.rules.link_open
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md.renderer.rules.link_open = (tokens, idx, options, env, self) => {
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const result = defaultRender!!!!!!!!!!!(tokens, idx, options, env, self)
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const meta = tokens[idx].meta
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if (!meta || !meta.feedback) return result
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const heading = meta.feedback.heading || ''
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if (!heading) return result
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return `<Feedback heading="${heading}" />${result}`
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}
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}
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