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95 lines
2.3 KiB
JavaScript
95 lines
2.3 KiB
JavaScript
export default labelFactory
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import assert from 'assert'
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import codes from '../character/codes.mjs'
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import markdownLineEnding from '../character/markdown-line-ending.mjs'
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import markdownSpace from '../character/markdown-space.mjs'
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import constants from '../constant/constants.mjs'
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import types from '../constant/types.mjs'
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// eslint-disable-next-line max-params
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function labelFactory(effects, ok, nok, type, markerType, stringType) {
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var self = this
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var size = 0
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var data
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return start
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function start(code) {
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assert(code === codes.leftSquareBracket, 'expected `[`')
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effects.enter(type)
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effects.enter(markerType)
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effects.consume(code)
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effects.exit(markerType)
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effects.enter(stringType)
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return atBreak
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}
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function atBreak(code) {
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if (
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code === codes.eof ||
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code === codes.leftSquareBracket ||
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(code === codes.rightSquareBracket && !data) ||
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/* c8 ignore next */
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(code === codes.caret &&
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/* c8 ignore next */
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!size &&
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/* c8 ignore next */
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'_hiddenFootnoteSupport' in self.parser.constructs) ||
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size > constants.linkReferenceSizeMax
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) {
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return nok(code)
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}
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if (code === codes.rightSquareBracket) {
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effects.exit(stringType)
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effects.enter(markerType)
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effects.consume(code)
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effects.exit(markerType)
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effects.exit(type)
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return ok
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}
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if (markdownLineEnding(code)) {
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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 atBreak
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}
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effects.enter(types.chunkString, {contentType: constants.contentTypeString})
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return label(code)
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}
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function label(code) {
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if (
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code === codes.eof ||
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code === codes.leftSquareBracket ||
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code === codes.rightSquareBracket ||
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markdownLineEnding(code) ||
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size++ > constants.linkReferenceSizeMax
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) {
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effects.exit(types.chunkString)
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return atBreak(code)
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}
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effects.consume(code)
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data = data || !markdownSpace(code)
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return code === codes.backslash ? labelEscape : label
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}
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function labelEscape(code) {
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if (
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code === codes.leftSquareBracket ||
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code === codes.backslash ||
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code === codes.rightSquareBracket
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) {
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effects.consume(code)
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size++
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return label
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}
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return label(code)
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}
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}
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