From 8272a4bd430c3637fad4c5e437b727171237946b Mon Sep 17 00:00:00 2001 From: Joseph Montanaro Date: Sat, 19 Aug 2023 12:45:02 -0700 Subject: [PATCH] rework rehype plugin --- package-lock.json | 349 +++++++++++++++++++++++++++++++++++++++++- package.json | 5 +- src/lib/slug.js | 50 ------ src/lib/utils.js | 8 + src/plugins/rehype.js | 86 +++++++++++ static/style.css | 1 + svelte.config.js | 6 +- 7 files changed, 451 insertions(+), 54 deletions(-) delete mode 100644 src/lib/slug.js create mode 100644 src/lib/utils.js create mode 100644 src/plugins/rehype.js diff --git a/package-lock.json b/package-lock.json index 4535340..4b3c4a9 100644 --- a/package-lock.json +++ b/package-lock.json @@ -10,10 +10,13 @@ "devDependencies": { "@sveltejs/adapter-static": "^1.0.0-next.21", "@sveltejs/kit": "next", + "hast-util-to-text": "^3.1.2", "mdsvex": "^0.9.8", "node-sass": "^6.0.1", "svelte": "^3.42.6", - "svelte-preprocess": "^4.9.8" + "svelte-preprocess": "^4.9.8", + "unist-util-find": "^2.0.0", + "unist-util-visit": "^5.0.0" } }, "node_modules/@babel/code-frame": { @@ -159,6 +162,15 @@ } } }, + "node_modules/@types/hast": { + "version": "2.3.5", + "resolved": "https://registry.npmjs.org/@types/hast/-/hast-2.3.5.tgz", + "integrity": "sha512-SvQi0L/lNpThgPoleH53cdjB3y9zpLlVjRbqB3rH8hx1jiRSBGAhyjV3H+URFjNVRqt2EdYNrbZE5IsGlNfpRg==", + "dev": true, + "dependencies": { + "@types/unist": "^2" + } + }, "node_modules/@types/minimist": { "version": "1.2.2", "resolved": "https://registry.npmjs.org/@types/minimist/-/minimist-1.2.2.tgz", @@ -1433,6 +1445,36 @@ "integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=", "dev": true }, + "node_modules/hast-util-is-element": { + "version": "2.1.3", + "resolved": "https://registry.npmjs.org/hast-util-is-element/-/hast-util-is-element-2.1.3.tgz", + "integrity": "sha512-O1bKah6mhgEq2WtVMk+Ta5K7pPMqsBBlmzysLdcwKVrqzZQ0CHqUPiIVspNhAG1rvxpvJjtGee17XfauZYKqVA==", + "dev": true, + "dependencies": { + "@types/hast": "^2.0.0", + "@types/unist": "^2.0.0" + }, + "funding": { + "type": "opencollective", + "url": "https://opencollective.com/unified" + } + }, + "node_modules/hast-util-to-text": { + "version": "3.1.2", + "resolved": "https://registry.npmjs.org/hast-util-to-text/-/hast-util-to-text-3.1.2.tgz", + "integrity": "sha512-tcllLfp23dJJ+ju5wCCZHVpzsQQ43+moJbqVX3jNWPB7z/KFC4FyZD6R7y94cHL6MQ33YtMZL8Z0aIXXI4XFTw==", + "dev": true, + "dependencies": { + "@types/hast": "^2.0.0", + "@types/unist": "^2.0.0", + "hast-util-is-element": "^2.0.0", + "unist-util-find-after": "^4.0.0" + }, + "funding": { + "type": "opencollective", + "url": "https://opencollective.com/unified" + } + }, "node_modules/hosted-git-info": { "version": "4.1.0", "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-4.1.0.tgz", @@ -1689,6 +1731,12 @@ "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==", "dev": true }, + "node_modules/lodash.iteratee": { + "version": "4.7.0", + "resolved": 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"https://registry.npmjs.org/unist-util-visit-parents/-/unist-util-visit-parents-6.0.1.tgz", + "integrity": "sha512-L/PqWzfTP9lzzEa6CKs0k2nARxTdZduw3zyh8d2NVBnsyvHjSX4TWse388YrrQKbvI8w20fGjGlhgT96WwKykw==", + "dev": true, + "requires": { + "@types/unist": "^3.0.0", + "unist-util-is": "^6.0.0" + }, + "dependencies": { + "@types/unist": { + "version": "3.0.0", + "resolved": "https://registry.npmjs.org/@types/unist/-/unist-3.0.0.tgz", + "integrity": "sha512-MFETx3tbTjE7Uk6vvnWINA/1iJ7LuMdO4fcq8UfF0pRbj01aGLduVvQcRyswuACJdpnHgg8E3rQLhaRdNEJS0w==", + "dev": true + } + } + }, "uri-js": { "version": "4.4.1", "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz", diff --git a/package.json b/package.json index 607870c..4f33525 100644 --- a/package.json +++ b/package.json @@ -12,7 +12,10 @@ "mdsvex": "^0.9.8", "node-sass": "^6.0.1", "svelte": "^3.42.6", - "svelte-preprocess": "^4.9.8" + "svelte-preprocess": "^4.9.8", + "unist-util-visit": "^5.0.0", + "unist-util-find": "^2.0.0", + "hast-util-to-text": "^3.1.2" }, "type": "module" } diff --git a/src/lib/slug.js b/src/lib/slug.js deleted file mode 100644 index 582eed8..0000000 --- a/src/lib/slug.js +++ /dev/null @@ -1,50 +0,0 @@ -const nonAlphaNum = /[^A-Za-z0-9\-]/g; -const space = /\s/g - -export function makeSlug(text) { - return text - .toLowerCase() - .replace(space, '-') - .replace(nonAlphaNum, '') -} - -function apply(node, types, fn) { - if (typeof types === 'string') { - types = new Set([types]); - } - else if (!(types instanceof Set)) { - types = new Set(types) - console.log(types) - } - - if (types.has(node.type)) { - fn(node); - } - if ('children' in node) { - for (let child of node.children) { - apply(child, types, fn); - } - } -} - -function getTextContent(node) { - let segments = []; - apply(node, 'text', textNode => { - // skip all-whitespace strings - if (textNode.value.match(/^\s+$/)) return; - segments.push(textNode.value.trim()); - }); - - return segments.join(' '); -} - -export default function slug() { - return (tree) => { - apply(tree, 'element', e => { - if (e.tagName.match(/h[1-6]/)) { - let text = getTextContent(e); - e.properties.id = makeSlug(text); - } - }) - } -} diff --git a/src/lib/utils.js b/src/lib/utils.js new file mode 100644 index 0000000..99abfc4 --- /dev/null +++ b/src/lib/utils.js @@ -0,0 +1,8 @@ +const nonAlphaNum = /[^A-Za-z0-9\-]/g; +const space = /\s+/g; +export function makeSlug(text) { + return text + .toLowerCase() + .replace(space, '-') + .replace(nonAlphaNum, ''); +} diff --git a/src/plugins/rehype.js b/src/plugins/rehype.js new file mode 100644 index 0000000..2e33521 --- /dev/null +++ b/src/plugins/rehype.js @@ -0,0 +1,86 @@ +import { visit, CONTINUE, EXIT, SKIP, } from 'unist-util-visit'; +import { find } from 'unist-util-find'; +import { toText } from 'hast-util-to-text'; +import { makeSlug } from '../lib/utils.js'; + + +export function localPlugins() { + let printed = false; + + return (tree, vfile) => { + const needsDropcap = vfile.data.fm.dropcap !== false + let dropcapAdded = false; + + let moduleScript; + let imports = []; + if (needsDropcap) { + imports.push("import Dropcap from '$lib/Dropcap.svelte';"); + } + + visit(tree, node => { + // add slugs to headings + if (isHeading(node)) { + processHeading(node); + return SKIP; + } + + // mdsvex adds a