947 lines
22 KiB
Plaintext
947 lines
22 KiB
Plaintext
/**
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* @typedef {import('micromark-util-types').Event} Event
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* @typedef {import('micromark-util-types').Extension} Extension
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* @typedef {import('micromark-util-types').Point} Point
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* @typedef {import('micromark-util-types').Resolver} Resolver
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* @typedef {import('micromark-util-types').State} State
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* @typedef {import('micromark-util-types').Token} Token
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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 {[number, number, number, number]} Range
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* Cell info.
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*
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* @typedef {0 | 1 | 2 | 3} RowKind
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* Where we are: `1` for head row, `2` for delimiter row, `3` for body row.
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*/
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import {ok as assert} from 'devlop'
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import {factorySpace} from 'micromark-factory-space'
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import {
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markdownLineEnding,
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markdownLineEndingOrSpace,
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markdownSpace
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} from 'micromark-util-character'
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import {codes, constants, types} from 'micromark-util-symbol'
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import {EditMap} from './edit-map.js'
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import {gfmTableAlign} from './infer.js'
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/**
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* Create an HTML extension for `micromark` to support GitHub tables syntax.
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*
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* @returns {Extension}
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* Extension for `micromark` that can be passed in `extensions` to enable GFM
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* table syntax.
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*/
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export function gfmTable() {
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return {
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flow: {null: {tokenize: tokenizeTable, resolveAll: resolveTable}}
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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 tokenizeTable(effects, ok, nok) {
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const self = this
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let size = 0
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let sizeB = 0
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/** @type {boolean | undefined} */
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let seen
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return start
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/**
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* Start of a GFM table.
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*
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* If there is a valid table row or table head before, then we try to parse
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* another row.
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* Otherwise, we try to parse a head.
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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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* > | | b |
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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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let index = self.events.length - 1
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while (index > -1) {
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const type = self.events[index][1].type
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if (
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type === types.lineEnding ||
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// Note: markdown-rs uses `whitespace` instead of `linePrefix`
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type === types.linePrefix
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)
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index--
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else break
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}
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const tail = index > -1 ? self.events[index][1].type : null
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const next =
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tail === 'tableHead' || tail === 'tableRow' ? bodyRowStart : headRowBefore
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// Don’t allow lazy body rows.
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if (next === bodyRowStart && self.parser.lazy[self.now().line]) {
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return nok(code)
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}
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return next(code)
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}
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/**
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* Before table head row.
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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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* | | b |
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* ```
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*
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* @type {State}
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*/
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function headRowBefore(code) {
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effects.enter('tableHead')
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effects.enter('tableRow')
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return headRowStart(code)
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}
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/**
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* Before table head row, after whitespace.
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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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* | | b |
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* ```
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*
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* @type {State}
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*/
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function headRowStart(code) {
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if (code === codes.verticalBar) {
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return headRowBreak(code)
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}
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// To do: micromark-js should let us parse our own whitespace in extensions,
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// like `markdown-rs`:
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//
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// ```js
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// // 4+ spaces.
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// if (markdownSpace(code)) {
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// return nok(code)
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// }
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// ```
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seen = true
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// Count the first character, that isn’t a pipe, double.
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sizeB += 1
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return headRowBreak(code)
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}
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/**
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* At break in table head row.
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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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* | | - |
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* | | b |
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* ```
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*
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* @type {State}
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*/
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function headRowBreak(code) {
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if (code === codes.eof) {
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// Note: in `markdown-rs`, we need to reset, in `micromark-js` we don‘t.
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return nok(code)
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}
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if (markdownLineEnding(code)) {
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// If anything other than one pipe (ignoring whitespace) was used, it’s fine.
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if (sizeB > 1) {
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sizeB = 0
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// To do: check if this works.
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// Feel free to interrupt:
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self.interrupt = true
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effects.exit('tableRow')
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effects.enter(types.lineEnding)
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effects.consume(code)
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effects.exit(types.lineEnding)
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return headDelimiterStart
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}
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// Note: in `markdown-rs`, we need to reset, in `micromark-js` we don‘t.
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return nok(code)
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}
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if (markdownSpace(code)) {
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// To do: check if this is fine.
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// effects.attempt(State::Next(StateName::GfmTableHeadRowBreak), State::Nok)
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// State::Retry(space_or_tab(tokenizer))
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return factorySpace(effects, headRowBreak, types.whitespace)(code)
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}
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sizeB += 1
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if (seen) {
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seen = false
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// Header cell count.
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size += 1
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}
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if (code === codes.verticalBar) {
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effects.enter('tableCellDivider')
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effects.consume(code)
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effects.exit('tableCellDivider')
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// Whether a delimiter was seen.
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seen = true
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return headRowBreak
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}
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// Anything else is cell data.
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effects.enter(types.data)
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return headRowData(code)
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}
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/**
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* In table head row data.
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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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* | | b |
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* ```
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*
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* @type {State}
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*/
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function headRowData(code) {
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if (
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code === codes.eof ||
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code === codes.verticalBar ||
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markdownLineEndingOrSpace(code)
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) {
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effects.exit(types.data)
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return headRowBreak(code)
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}
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effects.consume(code)
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return code === codes.backslash ? headRowEscape : headRowData
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}
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/**
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* In table head row escape.
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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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* | | c |
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* ```
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*
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* @type {State}
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*/
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function headRowEscape(code) {
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if (code === codes.backslash || code === codes.verticalBar) {
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effects.consume(code)
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return headRowData
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}
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return headRowData(code)
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}
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/**
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* Before delimiter row.
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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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* | | b |
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* ```
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*
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* @type {State}
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*/
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function headDelimiterStart(code) {
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// Reset `interrupt`.
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self.interrupt = false
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// Note: in `markdown-rs`, we need to handle piercing here too.
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if (self.parser.lazy[self.now().line]) {
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return nok(code)
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}
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effects.enter('tableDelimiterRow')
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// Track if we’ve seen a `:` or `|`.
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seen = false
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if (markdownSpace(code)) {
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assert(self.parser.constructs.disable.null, 'expected `disabled.null`')
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return factorySpace(
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effects,
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headDelimiterBefore,
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types.linePrefix,
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self.parser.constructs.disable.null.includes('codeIndented')
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? undefined
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: constants.tabSize
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)(code)
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}
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return headDelimiterBefore(code)
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}
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/**
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* Before delimiter row, after optional whitespace.
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*
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* Reused when a `|` is found later, to parse another cell.
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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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* | | b |
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* ```
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*
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* @type {State}
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*/
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function headDelimiterBefore(code) {
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if (code === codes.dash || code === codes.colon) {
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return headDelimiterValueBefore(code)
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}
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if (code === codes.verticalBar) {
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seen = true
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// If we start with a pipe, we open a cell marker.
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effects.enter('tableCellDivider')
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effects.consume(code)
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effects.exit('tableCellDivider')
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return headDelimiterCellBefore
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}
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// More whitespace / empty row not allowed at start.
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return headDelimiterNok(code)
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}
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/**
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* After `|`, before delimiter cell.
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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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*
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* @type {State}
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*/
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function headDelimiterCellBefore(code) {
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if (markdownSpace(code)) {
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return factorySpace(
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effects,
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headDelimiterValueBefore,
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types.whitespace
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)(code)
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}
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return headDelimiterValueBefore(code)
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}
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/**
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* Before delimiter cell value.
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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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*
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* @type {State}
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*/
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function headDelimiterValueBefore(code) {
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// Align: left.
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if (code === codes.colon) {
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sizeB += 1
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seen = true
|
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|
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effects.enter('tableDelimiterMarker')
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effects.consume(code)
|
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effects.exit('tableDelimiterMarker')
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return headDelimiterLeftAlignmentAfter
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}
|
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|
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// Align: none.
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if (code === codes.dash) {
|
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sizeB += 1
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// To do: seems weird that this *isn’t* left aligned, but that state is used?
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return headDelimiterLeftAlignmentAfter(code)
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}
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|
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if (code === codes.eof || markdownLineEnding(code)) {
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return headDelimiterCellAfter(code)
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}
|
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|
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return headDelimiterNok(code)
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}
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|
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/**
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* After delimiter cell left alignment marker.
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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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*
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* @type {State}
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*/
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function headDelimiterLeftAlignmentAfter(code) {
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if (code === codes.dash) {
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effects.enter('tableDelimiterFiller')
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return headDelimiterFiller(code)
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}
|
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|
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// Anything else is not ok after the left-align colon.
|
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return headDelimiterNok(code)
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}
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|
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/**
|
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* In delimiter cell filler.
|
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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 headDelimiterFiller(code) {
|
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if (code === codes.dash) {
|
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effects.consume(code)
|
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return headDelimiterFiller
|
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}
|
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|
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// Align is `center` if it was `left`, `right` otherwise.
|
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if (code === codes.colon) {
|
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seen = true
|
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effects.exit('tableDelimiterFiller')
|
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effects.enter('tableDelimiterMarker')
|
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effects.consume(code)
|
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effects.exit('tableDelimiterMarker')
|
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return headDelimiterRightAlignmentAfter
|
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}
|
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|
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effects.exit('tableDelimiterFiller')
|
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return headDelimiterRightAlignmentAfter(code)
|
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}
|
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|
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/**
|
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* After delimiter cell right alignment marker.
|
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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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*
|
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* @type {State}
|
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*/
|
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function headDelimiterRightAlignmentAfter(code) {
|
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if (markdownSpace(code)) {
|
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return factorySpace(
|
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effects,
|
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headDelimiterCellAfter,
|
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types.whitespace
|
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)(code)
|
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}
|
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|
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return headDelimiterCellAfter(code)
|
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}
|
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|
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/**
|
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* After delimiter cell.
|
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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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* ```
|
||
*
|
||
* @type {State}
|
||
*/
|
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function headDelimiterCellAfter(code) {
|
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if (code === codes.verticalBar) {
|
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return headDelimiterBefore(code)
|
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}
|
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|
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if (code === codes.eof || markdownLineEnding(code)) {
|
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// Exit when:
|
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// * there was no `:` or `|` at all (it’s a thematic break or setext
|
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// underline instead)
|
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// * the header cell count is not the delimiter cell count
|
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if (!seen || size !== sizeB) {
|
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return headDelimiterNok(code)
|
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}
|
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|
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// Note: in markdown-rs`, a reset is needed here.
|
||
effects.exit('tableDelimiterRow')
|
||
effects.exit('tableHead')
|
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// To do: in `markdown-rs`, resolvers need to be registered manually.
|
||
// effects.register_resolver(ResolveName::GfmTable)
|
||
return ok(code)
|
||
}
|
||
|
||
return headDelimiterNok(code)
|
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}
|
||
|
||
/**
|
||
* In delimiter row, at a disallowed byte.
|
||
*
|
||
* ```markdown
|
||
* | | a |
|
||
* > | | x |
|
||
* ^
|
||
* ```
|
||
*
|
||
* @type {State}
|
||
*/
|
||
function headDelimiterNok(code) {
|
||
// Note: in `markdown-rs`, we need to reset, in `micromark-js` we don‘t.
|
||
return nok(code)
|
||
}
|
||
|
||
/**
|
||
* Before table body row.
|
||
*
|
||
* ```markdown
|
||
* | | a |
|
||
* | | - |
|
||
* > | | b |
|
||
* ^
|
||
* ```
|
||
*
|
||
* @type {State}
|
||
*/
|
||
function bodyRowStart(code) {
|
||
// Note: in `markdown-rs` we need to manually take care of a prefix,
|
||
// but in `micromark-js` that is done for us, so if we’re here, we’re
|
||
// never at whitespace.
|
||
effects.enter('tableRow')
|
||
return bodyRowBreak(code)
|
||
}
|
||
|
||
/**
|
||
* At break in table body row.
|
||
*
|
||
* ```markdown
|
||
* | | a |
|
||
* | | - |
|
||
* > | | b |
|
||
* ^
|
||
* ^
|
||
* ^
|
||
* ```
|
||
*
|
||
* @type {State}
|
||
*/
|
||
function bodyRowBreak(code) {
|
||
if (code === codes.verticalBar) {
|
||
effects.enter('tableCellDivider')
|
||
effects.consume(code)
|
||
effects.exit('tableCellDivider')
|
||
return bodyRowBreak
|
||
}
|
||
|
||
if (code === codes.eof || markdownLineEnding(code)) {
|
||
effects.exit('tableRow')
|
||
return ok(code)
|
||
}
|
||
|
||
if (markdownSpace(code)) {
|
||
return factorySpace(effects, bodyRowBreak, types.whitespace)(code)
|
||
}
|
||
|
||
// Anything else is cell content.
|
||
effects.enter(types.data)
|
||
return bodyRowData(code)
|
||
}
|
||
|
||
/**
|
||
* In table body row data.
|
||
*
|
||
* ```markdown
|
||
* | | a |
|
||
* | | - |
|
||
* > | | b |
|
||
* ^
|
||
* ```
|
||
*
|
||
* @type {State}
|
||
*/
|
||
function bodyRowData(code) {
|
||
if (
|
||
code === codes.eof ||
|
||
code === codes.verticalBar ||
|
||
markdownLineEndingOrSpace(code)
|
||
) {
|
||
effects.exit(types.data)
|
||
return bodyRowBreak(code)
|
||
}
|
||
|
||
effects.consume(code)
|
||
return code === codes.backslash ? bodyRowEscape : bodyRowData
|
||
}
|
||
|
||
/**
|
||
* In table body row escape.
|
||
*
|
||
* ```markdown
|
||
* | | a |
|
||
* | | ---- |
|
||
* > | | b\-c |
|
||
* ^
|
||
* ```
|
||
*
|
||
* @type {State}
|
||
*/
|
||
function bodyRowEscape(code) {
|
||
if (code === codes.backslash || code === codes.verticalBar) {
|
||
effects.consume(code)
|
||
return bodyRowData
|
||
}
|
||
|
||
return bodyRowData(code)
|
||
}
|
||
}
|
||
|
||
/** @type {Resolver} */
|
||
|
||
function resolveTable(events, context) {
|
||
let index = -1
|
||
let inFirstCellAwaitingPipe = true
|
||
/** @type {RowKind} */
|
||
let rowKind = 0
|
||
/** @type {Range} */
|
||
let lastCell = [0, 0, 0, 0]
|
||
/** @type {Range} */
|
||
let cell = [0, 0, 0, 0]
|
||
let afterHeadAwaitingFirstBodyRow = false
|
||
let lastTableEnd = 0
|
||
/** @type {Token | undefined} */
|
||
let currentTable
|
||
/** @type {Token | undefined} */
|
||
let currentBody
|
||
/** @type {Token | undefined} */
|
||
let currentCell
|
||
|
||
const map = new EditMap()
|
||
|
||
while (++index < events.length) {
|
||
const event = events[index]
|
||
const token = event[1]
|
||
|
||
if (event[0] === 'enter') {
|
||
// Start of head.
|
||
if (token.type === 'tableHead') {
|
||
afterHeadAwaitingFirstBodyRow = false
|
||
|
||
// Inject previous (body end and) table end.
|
||
if (lastTableEnd !== 0) {
|
||
assert(currentTable, 'there should be a table opening')
|
||
flushTableEnd(map, context, lastTableEnd, currentTable, currentBody)
|
||
currentBody = undefined
|
||
lastTableEnd = 0
|
||
}
|
||
|
||
// Inject table start.
|
||
currentTable = {
|
||
type: 'table',
|
||
start: Object.assign({}, token.start),
|
||
// Note: correct end is set later.
|
||
end: Object.assign({}, token.end)
|
||
}
|
||
map.add(index, 0, [['enter', currentTable, context]])
|
||
} else if (
|
||
token.type === 'tableRow' ||
|
||
token.type === 'tableDelimiterRow'
|
||
) {
|
||
inFirstCellAwaitingPipe = true
|
||
currentCell = undefined
|
||
lastCell = [0, 0, 0, 0]
|
||
cell = [0, index + 1, 0, 0]
|
||
|
||
// Inject table body start.
|
||
if (afterHeadAwaitingFirstBodyRow) {
|
||
afterHeadAwaitingFirstBodyRow = false
|
||
currentBody = {
|
||
type: 'tableBody',
|
||
start: Object.assign({}, token.start),
|
||
// Note: correct end is set later.
|
||
end: Object.assign({}, token.end)
|
||
}
|
||
map.add(index, 0, [['enter', currentBody, context]])
|
||
}
|
||
|
||
rowKind = token.type === 'tableDelimiterRow' ? 2 : currentBody ? 3 : 1
|
||
}
|
||
// Cell data.
|
||
else if (
|
||
rowKind &&
|
||
(token.type === types.data ||
|
||
token.type === 'tableDelimiterMarker' ||
|
||
token.type === 'tableDelimiterFiller')
|
||
) {
|
||
inFirstCellAwaitingPipe = false
|
||
|
||
// First value in cell.
|
||
if (cell[2] === 0) {
|
||
if (lastCell[1] !== 0) {
|
||
cell[0] = cell[1]
|
||
currentCell = flushCell(
|
||
map,
|
||
context,
|
||
lastCell,
|
||
rowKind,
|
||
undefined,
|
||
currentCell
|
||
)
|
||
lastCell = [0, 0, 0, 0]
|
||
}
|
||
|
||
cell[2] = index
|
||
}
|
||
} else if (token.type === 'tableCellDivider') {
|
||
if (inFirstCellAwaitingPipe) {
|
||
inFirstCellAwaitingPipe = false
|
||
} else {
|
||
if (lastCell[1] !== 0) {
|
||
cell[0] = cell[1]
|
||
currentCell = flushCell(
|
||
map,
|
||
context,
|
||
lastCell,
|
||
rowKind,
|
||
undefined,
|
||
currentCell
|
||
)
|
||
}
|
||
|
||
lastCell = cell
|
||
cell = [lastCell[1], index, 0, 0]
|
||
}
|
||
}
|
||
}
|
||
// Exit events.
|
||
else if (token.type === 'tableHead') {
|
||
afterHeadAwaitingFirstBodyRow = true
|
||
lastTableEnd = index
|
||
} else if (
|
||
token.type === 'tableRow' ||
|
||
token.type === 'tableDelimiterRow'
|
||
) {
|
||
lastTableEnd = index
|
||
|
||
if (lastCell[1] !== 0) {
|
||
cell[0] = cell[1]
|
||
currentCell = flushCell(
|
||
map,
|
||
context,
|
||
lastCell,
|
||
rowKind,
|
||
index,
|
||
currentCell
|
||
)
|
||
} else if (cell[1] !== 0) {
|
||
currentCell = flushCell(map, context, cell, rowKind, index, currentCell)
|
||
}
|
||
|
||
rowKind = 0
|
||
} else if (
|
||
rowKind &&
|
||
(token.type === types.data ||
|
||
token.type === 'tableDelimiterMarker' ||
|
||
token.type === 'tableDelimiterFiller')
|
||
) {
|
||
cell[3] = index
|
||
}
|
||
}
|
||
|
||
if (lastTableEnd !== 0) {
|
||
assert(currentTable, 'expected table opening')
|
||
flushTableEnd(map, context, lastTableEnd, currentTable, currentBody)
|
||
}
|
||
|
||
map.consume(context.events)
|
||
|
||
// To do: move this into `html`, when events are exposed there.
|
||
// That’s what `markdown-rs` does.
|
||
// That needs updates to `mdast-util-gfm-table`.
|
||
index = -1
|
||
while (++index < context.events.length) {
|
||
const event = context.events[index]
|
||
if (event[0] === 'enter' && event[1].type === 'table') {
|
||
event[1]._align = gfmTableAlign(context.events, index)
|
||
}
|
||
}
|
||
|
||
return events
|
||
}
|
||
|
||
/**
|
||
* Generate a cell.
|
||
*
|
||
* @param {EditMap} map
|
||
* @param {Readonly<TokenizeContext>} context
|
||
* @param {Readonly<Range>} range
|
||
* @param {RowKind} rowKind
|
||
* @param {number | undefined} rowEnd
|
||
* @param {Token | undefined} previousCell
|
||
* @returns {Token | undefined}
|
||
*/
|
||
// eslint-disable-next-line max-params
|
||
function flushCell(map, context, range, rowKind, rowEnd, previousCell) {
|
||
// `markdown-rs` uses:
|
||
// rowKind === 2 ? 'tableDelimiterCell' : 'tableCell'
|
||
const groupName =
|
||
rowKind === 1
|
||
? 'tableHeader'
|
||
: rowKind === 2
|
||
? 'tableDelimiter'
|
||
: 'tableData'
|
||
// `markdown-rs` uses:
|
||
// rowKind === 2 ? 'tableDelimiterCellValue' : 'tableCellText'
|
||
const valueName = 'tableContent'
|
||
|
||
// Insert an exit for the previous cell, if there is one.
|
||
//
|
||
// ```markdown
|
||
// > | | aa | bb | cc |
|
||
// ^-- exit
|
||
// ^^^^-- this cell
|
||
// ```
|
||
if (range[0] !== 0) {
|
||
assert(previousCell, 'expected previous cell enter')
|
||
previousCell.end = Object.assign({}, getPoint(context.events, range[0]))
|
||
map.add(range[0], 0, [['exit', previousCell, context]])
|
||
}
|
||
|
||
// Insert enter of this cell.
|
||
//
|
||
// ```markdown
|
||
// > | | aa | bb | cc |
|
||
// ^-- enter
|
||
// ^^^^-- this cell
|
||
// ```
|
||
const now = getPoint(context.events, range[1])
|
||
previousCell = {
|
||
type: groupName,
|
||
start: Object.assign({}, now),
|
||
// Note: correct end is set later.
|
||
end: Object.assign({}, now)
|
||
}
|
||
map.add(range[1], 0, [['enter', previousCell, context]])
|
||
|
||
// Insert text start at first data start and end at last data end, and
|
||
// remove events between.
|
||
//
|
||
// ```markdown
|
||
// > | | aa | bb | cc |
|
||
// ^-- enter
|
||
// ^-- exit
|
||
// ^^^^-- this cell
|
||
// ```
|
||
if (range[2] !== 0) {
|
||
const relatedStart = getPoint(context.events, range[2])
|
||
const relatedEnd = getPoint(context.events, range[3])
|
||
/** @type {Token} */
|
||
const valueToken = {
|
||
type: valueName,
|
||
start: Object.assign({}, relatedStart),
|
||
end: Object.assign({}, relatedEnd)
|
||
}
|
||
map.add(range[2], 0, [['enter', valueToken, context]])
|
||
assert(range[3] !== 0)
|
||
|
||
if (rowKind !== 2) {
|
||
// Fix positional info on remaining events
|
||
const start = context.events[range[2]]
|
||
const end = context.events[range[3]]
|
||
start[1].end = Object.assign({}, end[1].end)
|
||
start[1].type = types.chunkText
|
||
start[1].contentType = constants.contentTypeText
|
||
|
||
// Remove if needed.
|
||
if (range[3] > range[2] + 1) {
|
||
const a = range[2] + 1
|
||
const b = range[3] - range[2] - 1
|
||
map.add(a, b, [])
|
||
}
|
||
}
|
||
|
||
map.add(range[3] + 1, 0, [['exit', valueToken, context]])
|
||
}
|
||
|
||
// Insert an exit for the last cell, if at the row end.
|
||
//
|
||
// ```markdown
|
||
// > | | aa | bb | cc |
|
||
// ^-- exit
|
||
// ^^^^^^-- this cell (the last one contains two “between” parts)
|
||
// ```
|
||
if (rowEnd !== undefined) {
|
||
previousCell.end = Object.assign({}, getPoint(context.events, rowEnd))
|
||
map.add(rowEnd, 0, [['exit', previousCell, context]])
|
||
previousCell = undefined
|
||
}
|
||
|
||
return previousCell
|
||
}
|
||
|
||
/**
|
||
* Generate table end (and table body end).
|
||
*
|
||
* @param {Readonly<EditMap>} map
|
||
* @param {Readonly<TokenizeContext>} context
|
||
* @param {number} index
|
||
* @param {Token} table
|
||
* @param {Token | undefined} tableBody
|
||
*/
|
||
// eslint-disable-next-line max-params
|
||
function flushTableEnd(map, context, index, table, tableBody) {
|
||
/** @type {Array<Event>} */
|
||
const exits = []
|
||
const related = getPoint(context.events, index)
|
||
|
||
if (tableBody) {
|
||
tableBody.end = Object.assign({}, related)
|
||
exits.push(['exit', tableBody, context])
|
||
}
|
||
|
||
table.end = Object.assign({}, related)
|
||
exits.push(['exit', table, context])
|
||
|
||
map.add(index + 1, 0, exits)
|
||
}
|
||
|
||
/**
|
||
* @param {Readonly<Array<Event>>} events
|
||
* @param {number} index
|
||
* @returns {Readonly<Point>}
|
||
*/
|
||
function getPoint(events, index) {
|
||
const event = events[index]
|
||
const side = event[0] === 'enter' ? 'start' : 'end'
|
||
return event[1][side]
|
||
}
|