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125 lines
4.2 KiB
JavaScript
125 lines
4.2 KiB
JavaScript
/**
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* @typedef {import('micromark-factory-mdx-expression').Acorn} Acorn
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* @typedef {import('micromark-factory-mdx-expression').AcornOptions} AcornOptions
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* @typedef {import('micromark-util-types').Construct} Construct
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* @typedef {import('micromark-util-types').State} State
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* @typedef {import('micromark-util-types').TokenizeContext} TokenizeContext
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* @typedef {import('micromark-util-types').Tokenizer} Tokenizer
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*/
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/**
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* @typedef Options
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* Configuration.
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* @property {AcornOptions | undefined} acornOptions
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* Acorn options.
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* @property {boolean | undefined} addResult
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* Whether to add `estree` fields to tokens with results from acorn.
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*/
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import { markdownLineEnding, markdownSpace } from 'micromark-util-character';
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import { factorySpace } from 'micromark-factory-space';
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import { factoryTag } from './factory-tag.js';
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/**
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* Parse JSX (flow).
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*
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* @param {Acorn | undefined} acorn
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* Acorn parser to use (optional).
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* @param {Options} options
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* Configuration.
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* @returns {Construct}
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* Construct.
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*/
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export function jsxFlow(acorn, options) {
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return {
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name: 'mdxJsxFlowTag',
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tokenize: tokenizeJsxFlow,
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concrete: true
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};
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/**
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* MDX JSX (flow).
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*
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* ```markdown
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* > | <A />
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* ^^^^^
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* ```
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*
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* @this {TokenizeContext}
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* @type {Tokenizer}
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*/
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function tokenizeJsxFlow(effects, ok, nok) {
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const self = this;
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return start;
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/**
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* Start of MDX: JSX (flow).
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*
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* ```markdown
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* > | <A />
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* ^
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* ```
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*
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* @type {State}
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*/
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function start(code) {
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// To do: in `markdown-rs`, constructs need to parse the indent themselves.
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// This should also be introduced in `micromark-js`.
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return before(code);
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}
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/**
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* After optional whitespace, before of MDX JSX (flow).
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*
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* ```markdown
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* > | <A />
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* ^
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* ```
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*
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* @type {State}
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*/
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function before(code) {
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return factoryTag.call(self, effects, after, nok, acorn, options.acornOptions, options.addResult, false, 'mdxJsxFlowTag', 'mdxJsxFlowTagMarker', 'mdxJsxFlowTagClosingMarker', 'mdxJsxFlowTagSelfClosingMarker', 'mdxJsxFlowTagName', 'mdxJsxFlowTagNamePrimary', 'mdxJsxFlowTagNameMemberMarker', 'mdxJsxFlowTagNameMember', 'mdxJsxFlowTagNamePrefixMarker', 'mdxJsxFlowTagNameLocal', 'mdxJsxFlowTagExpressionAttribute', 'mdxJsxFlowTagExpressionAttributeMarker', 'mdxJsxFlowTagExpressionAttributeValue', 'mdxJsxFlowTagAttribute', 'mdxJsxFlowTagAttributeName', 'mdxJsxFlowTagAttributeNamePrimary', 'mdxJsxFlowTagAttributeNamePrefixMarker', 'mdxJsxFlowTagAttributeNameLocal', 'mdxJsxFlowTagAttributeInitializerMarker', 'mdxJsxFlowTagAttributeValueLiteral', 'mdxJsxFlowTagAttributeValueLiteralMarker', 'mdxJsxFlowTagAttributeValueLiteralValue', 'mdxJsxFlowTagAttributeValueExpression', 'mdxJsxFlowTagAttributeValueExpressionMarker', 'mdxJsxFlowTagAttributeValueExpressionValue')(code);
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}
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/**
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* After an MDX JSX (flow) tag.
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*
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* ```markdown
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* > | <A>
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* ^
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* ```
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*
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* @type {State}
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*/
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function after(code) {
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return markdownSpace(code) ? factorySpace(effects, end, "whitespace")(code) : end(code);
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}
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/**
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* After an MDX JSX (flow) tag, after optional whitespace.
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*
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* ```markdown
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* > | <A> <B>
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* ^
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* ```
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*
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* @type {State}
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*/
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function end(code) {
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// We want to allow expressions directly after tags.
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// See <https://github.com/micromark/micromark-extension-mdx-expression/blob/d5d92b9/packages/micromark-extension-mdx-expression/dev/lib/syntax.js#L183>
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// for more info.
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const leftBraceValue = self.parser.constructs.flow[123];
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/* c8 ignore next 5 -- always a list when normalized. */
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const constructs = Array.isArray(leftBraceValue) ? leftBraceValue : leftBraceValue ? [leftBraceValue] : [];
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const expression = constructs.find(d => d.name === 'mdxFlowExpression');
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// Another tag.
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return code === 60 ?
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// We can’t just say: fine. Lines of blocks have to be parsed until an eol/eof.
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start(code) : code === 123 && expression ? effects.attempt(expression, end, nok)(code) : code === null || markdownLineEnding(code) ? ok(code) : nok(code);
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}
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}
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} |