micromark-extension-directive/dev/lib/factory-name.js
2023-05-30 16:32:08 +02:00

50 lines
1.1 KiB
JavaScript

/**
* @typedef {import('micromark-util-types').Effects} Effects
* @typedef {import('micromark-util-types').State} State
* @typedef {import('micromark-util-types').TokenizeContext} TokenizeContext
* @typedef {import('micromark-util-types').TokenType} TokenType
*/
import {asciiAlpha, asciiAlphanumeric} from 'micromark-util-character'
import {codes} from 'micromark-util-symbol/codes.js'
/**
* @this {TokenizeContext}
* @param {Effects} effects
* @param {State} ok
* @param {State} nok
* @param {TokenType} type
*/
export function factoryName(effects, ok, nok, type) {
const self = this
return start
/** @type {State} */
function start(code) {
if (asciiAlpha(code)) {
effects.enter(type)
effects.consume(code)
return name
}
return nok(code)
}
/** @type {State} */
function name(code) {
if (
code === codes.dash ||
code === codes.underscore ||
asciiAlphanumeric(code)
) {
effects.consume(code)
return name
}
effects.exit(type)
return self.previous === codes.dash || self.previous === codes.underscore
? nok(code)
: ok(code)
}
}