micromark-extension-directive/dev/lib/directive-leaf.js
2024-07-05 17:29:27 +02:00

124 lines
2.9 KiB
JavaScript

/**
* @import {Construct, State, TokenizeContext, Tokenizer} from 'micromark-util-types'
*/
import {ok as assert} from 'devlop'
import {factorySpace} from 'micromark-factory-space'
import {markdownLineEnding} from 'micromark-util-character'
import {codes, types} from 'micromark-util-symbol'
import {factoryAttributes} from './factory-attributes.js'
import {factoryLabel} from './factory-label.js'
import {factoryName} from './factory-name.js'
/** @type {Construct} */
export const directiveLeaf = {tokenize: tokenizeDirectiveLeaf}
const label = {tokenize: tokenizeLabel, partial: true}
const attributes = {tokenize: tokenizeAttributes, partial: true}
/**
* @this {TokenizeContext}
* @type {Tokenizer}
*/
function tokenizeDirectiveLeaf(effects, ok, nok) {
const self = this
return start
/** @type {State} */
function start(code) {
assert(code === codes.colon, 'expected `:`')
effects.enter('directiveLeaf')
effects.enter('directiveLeafSequence')
effects.consume(code)
return inStart
}
/** @type {State} */
function inStart(code) {
if (code === codes.colon) {
effects.consume(code)
effects.exit('directiveLeafSequence')
return factoryName.call(
self,
effects,
afterName,
nok,
'directiveLeafName'
)
}
return nok(code)
}
/** @type {State} */
function afterName(code) {
return code === codes.leftSquareBracket
? effects.attempt(label, afterLabel, afterLabel)(code)
: afterLabel(code)
}
/** @type {State} */
function afterLabel(code) {
return code === codes.leftCurlyBrace
? effects.attempt(attributes, afterAttributes, afterAttributes)(code)
: afterAttributes(code)
}
/** @type {State} */
function afterAttributes(code) {
return factorySpace(effects, end, types.whitespace)(code)
}
/** @type {State} */
function end(code) {
if (code === codes.eof || markdownLineEnding(code)) {
effects.exit('directiveLeaf')
return ok(code)
}
return nok(code)
}
}
/**
* @this {TokenizeContext}
* @type {Tokenizer}
*/
function tokenizeLabel(effects, ok, nok) {
// Always a `[`
return factoryLabel(
effects,
ok,
nok,
'directiveLeafLabel',
'directiveLeafLabelMarker',
'directiveLeafLabelString',
true
)
}
/**
* @this {TokenizeContext}
* @type {Tokenizer}
*/
function tokenizeAttributes(effects, ok, nok) {
// Always a `{`
return factoryAttributes(
effects,
ok,
nok,
'directiveLeafAttributes',
'directiveLeafAttributesMarker',
'directiveLeafAttribute',
'directiveLeafAttributeId',
'directiveLeafAttributeClass',
'directiveLeafAttributeName',
'directiveLeafAttributeInitializerMarker',
'directiveLeafAttributeValueLiteral',
'directiveLeafAttributeValue',
'directiveLeafAttributeValueMarker',
'directiveLeafAttributeValueData',
true
)
}