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Extract MDX headings #16

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Extract MDX headings #16

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cb68060
Extract MDX headings
shilman Mar 16, 2024
72d7283
Upgrade auto
shilman Mar 16, 2024
e5df4f9
Merge branch 'next' into shilman/extract-mdx-headings
shilman Sep 4, 2024
129f63c
Fix tests
shilman Sep 4, 2024
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2 changes: 2 additions & 0 deletions package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,9 @@
"auto": "^11.1.2",
"concurrently": "^8.2.2",
"estree-jsx": "^0.0.1",
"hast-util-select": "^6.0.2",
"hast-util-to-estree": "^3.1.0",
"hast-util-to-string": "^3.0.0",
"husky": ">=6",
"lint-staged": ">=10",
"meriyah": "^4.5.0",
Expand Down
47 changes: 47 additions & 0 deletions src/analyze.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,9 @@ describe('analyze', () => {
`;
await expect(analyze(input)).resolves.toMatchInlineSnapshot(`
{
"headings": [
"hello",
],
"imports": [],
"isTemplate": false,
"metaTags": undefined,
Expand Down Expand Up @@ -75,6 +78,9 @@ describe('analyze', () => {
`;
await expect(analyze(input)).resolves.toMatchInlineSnapshot(`
{
"headings": [
"hello",
],
"imports": [],
"isTemplate": false,
"metaTags": undefined,
Expand Down Expand Up @@ -106,6 +112,7 @@ describe('analyze', () => {
`;
await expect(analyze(input)).resolves.toMatchInlineSnapshot(`
{
"headings": [],
"imports": [
"@storybook/blocks",
"./Button.stories",
Expand Down Expand Up @@ -146,6 +153,7 @@ describe('analyze', () => {
`;
await expect(analyze(input)).resolves.toMatchInlineSnapshot(`
{
"headings": [],
"imports": [
"@storybook/blocks",
"./Button.stories",
Expand Down Expand Up @@ -175,6 +183,9 @@ describe('analyze', () => {
`;
await expect(analyze(input)).resolves.toMatchInlineSnapshot(`
{
"headings": [
"Docs with of",
],
"imports": [
"../src/A.stories",
],
Expand Down Expand Up @@ -206,6 +217,7 @@ describe('analyze', () => {
`;
await expect(analyze(input)).resolves.toMatchInlineSnapshot(`
{
"headings": [],
"imports": [],
"isTemplate": true,
"metaTags": undefined,
Expand All @@ -221,6 +233,7 @@ describe('analyze', () => {
`;
await expect(analyze(input)).resolves.toMatchInlineSnapshot(`
{
"headings": [],
"imports": [],
"isTemplate": true,
"metaTags": undefined,
Expand All @@ -236,6 +249,7 @@ describe('analyze', () => {
`;
expect(analyze(input)).resolves.toMatchInlineSnapshot(`
{
"headings": [],
"imports": [],
"isTemplate": false,
"metaTags": undefined,
Expand Down Expand Up @@ -274,6 +288,7 @@ describe('analyze', () => {
`;
await expect(analyze(input)).resolves.toMatchInlineSnapshot(`
{
"headings": [],
"imports": [
"./Button.stories",
],
Expand Down Expand Up @@ -322,6 +337,9 @@ describe('analyze', () => {
`;
await expect(analyze(input)).resolves.toMatchInlineSnapshot(`
{
"headings": [
"hello",
],
"imports": [],
"isTemplate": false,
"metaTags": undefined,
Expand All @@ -339,6 +357,7 @@ describe('analyze', () => {
`;
await expect(analyze(input)).resolves.toMatchInlineSnapshot(`
{
"headings": [],
"imports": [
"./Button.stories",
],
Expand Down Expand Up @@ -382,6 +401,7 @@ describe('analyze', () => {
`;
await expect(analyze(input)).resolves.toMatchInlineSnapshot(`
{
"headings": [],
"imports": [
"./Button.stories",
],
Expand All @@ -394,4 +414,31 @@ describe('analyze', () => {
`);
});
});

describe('headings', () => {
it('markdown', () => {
const input = dedent`
# hello **world**
## Goodbye
### Hi <b>again</b>

<Meta title="foobar" />
`;
expect(analyze(input)).resolves.toMatchInlineSnapshot(`
{
"headings": [
"hello world",
"Goodbye",
"Hi again",
],
"imports": [],
"isTemplate": false,
"metaTags": undefined,
"name": undefined,
"of": undefined,
"title": "foobar",
}
`);
});
});
});
18 changes: 16 additions & 2 deletions src/analyze.ts
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Original file line number Diff line number Diff line change
@@ -1,4 +1,6 @@
import { toEstree } from 'hast-util-to-estree';
import { selectAll } from 'hast-util-select';
import { toString } from 'hast-util-to-string';
import type { Program, ExpressionStatement } from 'hast-util-to-estree/lib';
import type {
JSXFragment,
Expand Down Expand Up @@ -150,6 +152,17 @@ export const extractImports = (root: Program) => {
return varToImport;
};

export const getHeadings = (root: any) => {
const headings = [] as string[];
['h1', 'h2', 'h3', 'h4'].forEach((tag) => {
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Would it be difficult to have options for that? People probably have different opinions about "what should be searchable" and maybe want something like

docs: {
  includeInSearch: 'h1, h2'
}

or something?

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Good idea. I'll implement it all end-to-end using this simple method and then see how disruptive it is to make it configurable

selectAll(tag, root).forEach((node: any) => {
const heading = toString(node);
headings.push(heading);
});
});
return headings;
};

export const plugin = (store: any) => (root: any) => {
const estree = toEstree(root);
const varToImport = extractImports(estree);
Expand All @@ -160,6 +173,7 @@ export const plugin = (store: any) => (root: any) => {
store.isTemplate = isTemplate;
store.metaTags = metaTags;
store.imports = Array.from(new Set(Object.values(varToImport)));
store.headings = getHeadings(root);

return root;
};
Expand All @@ -177,6 +191,6 @@ export const analyze = async (code: string) => {
await compile(code, {
rehypePlugins: [[plugin, store]],
});
const { title, of, name, isTemplate, metaTags, imports = [] } = store;
return { title, of, name, isTemplate, metaTags, imports };
const { title, of, name, isTemplate, metaTags, imports = [], headings = [] } = store;
return { title, of, name, isTemplate, metaTags, imports, headings };
};
90 changes: 90 additions & 0 deletions yarn.lock
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Original file line number Diff line number Diff line change
Expand Up @@ -932,7 +932,9 @@ __metadata:
auto: "npm:^11.1.2"
concurrently: "npm:^8.2.2"
estree-jsx: "npm:^0.0.1"
hast-util-select: "npm:^6.0.2"
hast-util-to-estree: "npm:^3.1.0"
hast-util-to-string: "npm:^3.0.0"
husky: "npm:>=6"
lint-staged: "npm:>=10"
meriyah: "npm:^4.5.0"
Expand Down Expand Up @@ -1416,6 +1418,13 @@ __metadata:
languageName: node
linkType: hard

"bcp-47-match@npm:^2.0.0":
version: 2.0.3
resolution: "bcp-47-match@npm:2.0.3"
checksum: ae5c202854df8a9ad4777dc3b49562578495a69164869f365a88c1a089837a9fbbce4c0c44f6f1a5e44c7841f47e91fe6fea00306ca49ce5ec95a7eb71f839c4
languageName: node
linkType: hard

"before-after-hook@npm:^2.2.0":
version: 2.2.3
resolution: "before-after-hook@npm:2.2.3"
Expand All @@ -1430,6 +1439,13 @@ __metadata:
languageName: node
linkType: hard

"boolbase@npm:^1.0.0":
version: 1.0.0
resolution: "boolbase@npm:1.0.0"
checksum: e4b53deb4f2b85c52be0e21a273f2045c7b6a6ea002b0e139c744cb6f95e9ec044439a52883b0d74dedd1ff3da55ed140cfdddfed7fb0cccbed373de5dce1bcf
languageName: node
linkType: hard

"bottleneck@npm:^2.15.3":
version: 2.19.5
resolution: "bottleneck@npm:2.19.5"
Expand Down Expand Up @@ -1832,6 +1848,13 @@ __metadata:
languageName: node
linkType: hard

"css-selector-parser@npm:^3.0.0":
version: 3.0.5
resolution: "css-selector-parser@npm:3.0.5"
checksum: 250b110ffd6926a9971dad56a69802b00ff52d621b6c20b3cfd714f024eb6ed7042a57226dea3446ff00dad864d03f5cee5c451b8c6d09ee12c723f5a9ca71c2
languageName: node
linkType: hard

"date-fns@npm:^2.30.0":
version: 2.30.0
resolution: "date-fns@npm:2.30.0"
Expand Down Expand Up @@ -1947,6 +1970,15 @@ __metadata:
languageName: node
linkType: hard

"direction@npm:^2.0.0":
version: 2.0.1
resolution: "direction@npm:2.0.1"
bin:
direction: cli.js
checksum: dce809431cad978e0778769a3818ea797ebe0bd542c85032ad9ad98971e2021a146be62feb259d7ffe4b76739e07b23e861b29c3f184ac8d38cc6ba956d5c586
languageName: node
linkType: hard

"dotenv@npm:^8.0.0":
version: 8.6.0
resolution: "dotenv@npm:8.6.0"
Expand Down Expand Up @@ -2628,6 +2660,39 @@ __metadata:
languageName: node
linkType: hard

"hast-util-has-property@npm:^3.0.0":
version: 3.0.0
resolution: "hast-util-has-property@npm:3.0.0"
dependencies:
"@types/hast": "npm:^3.0.0"
checksum: 6e2c0e22ca893c6ebb60f8390e184c4deb041c36d09796756f02cd121c1789c0f5c862ed06caea8f1a80ea8c0ef6a7854dd57946c2eebb76488727bd4a1c952e
languageName: node
linkType: hard

"hast-util-select@npm:^6.0.2":
version: 6.0.2
resolution: "hast-util-select@npm:6.0.2"
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"@types/unist": "npm:^3.0.0"
bcp-47-match: "npm:^2.0.0"
comma-separated-tokens: "npm:^2.0.0"
css-selector-parser: "npm:^3.0.0"
devlop: "npm:^1.0.0"
direction: "npm:^2.0.0"
hast-util-has-property: "npm:^3.0.0"
hast-util-to-string: "npm:^3.0.0"
hast-util-whitespace: "npm:^3.0.0"
not: "npm:^0.1.0"
nth-check: "npm:^2.0.0"
property-information: "npm:^6.0.0"
space-separated-tokens: "npm:^2.0.0"
unist-util-visit: "npm:^5.0.0"
zwitch: "npm:^2.0.0"
checksum: 1e757536119af068f6a3f1e77e3c1d01e16cf0f949cd514791f63cfdfac7a86a0238e567585c1d5868d771c8ca6ecc214f90497e56aa798ed7f5a2115bfa66ac
languageName: node
linkType: hard

"hast-util-to-estree@npm:^3.0.0, hast-util-to-estree@npm:^3.1.0":
version: 3.1.0
resolution: "hast-util-to-estree@npm:3.1.0"
Expand Down Expand Up @@ -2675,6 +2740,15 @@ __metadata:
languageName: node
linkType: hard

"hast-util-to-string@npm:^3.0.0":
version: 3.0.0
resolution: "hast-util-to-string@npm:3.0.0"
dependencies:
"@types/hast": "npm:^3.0.0"
checksum: 649edd993cf244563ad86d861aa0863759a4fbec49c43b3d92240e42aa4b69f0c3332ddff9e80954bbd8756c86b0fddc20e97d281c6da59d00427f45da8dab68
languageName: node
linkType: hard

"hast-util-whitespace@npm:^3.0.0":
version: 3.0.0
resolution: "hast-util-whitespace@npm:3.0.0"
Expand Down Expand Up @@ -4075,6 +4149,13 @@ __metadata:
languageName: node
linkType: hard

"not@npm:^0.1.0":
version: 0.1.0
resolution: "not@npm:0.1.0"
checksum: b75d7b2e41d73e2e1cb3327826d53667b41bc6ff7d7ff1d8014ad3bf410d4ecd46f512683b22a4c043e03cbb2b0a483aa69232d4bf9c0e2ee1a9127fe02f047a
languageName: node
linkType: hard

"npm-run-path@npm:^4.0.1":
version: 4.0.1
resolution: "npm-run-path@npm:4.0.1"
Expand All @@ -4093,6 +4174,15 @@ __metadata:
languageName: node
linkType: hard

"nth-check@npm:^2.0.0":
version: 2.1.1
resolution: "nth-check@npm:2.1.1"
dependencies:
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checksum: 5fee7ff309727763689cfad844d979aedd2204a817fbaaf0e1603794a7c20db28548d7b024692f953557df6ce4a0ee4ae46cd8ebd9b36cfb300b9226b567c479
languageName: node
linkType: hard

"object-assign@npm:^4.0.1":
version: 4.1.1
resolution: "object-assign@npm:4.1.1"
Expand Down
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