29 lines
1.6 KiB
TypeScript
29 lines
1.6 KiB
TypeScript
import type { AdfNode } from '../../adf/document.ts'
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import type { BlockDirective } from '../../adf/block-directives.ts'
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import { blockArgument } from '../block-directive-arguments.ts'
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import { isBareToken, spellAttributes, spellJsonAttribute, spellVocabulary } from '../directive-syntax.ts'
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import { markValues, marksAttribute } from '../block-directive-marks.ts'
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import { nodeAttrs, nodeMarks } from '../../adf/document.ts'
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import { vocabularyPairs } from '../../adf/attribute-vocabulary.ts'
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export function spellDirectiveHeader(node: AdfNode, directive: BlockDirective, spelledByBody: readonly string[] = []): string | undefined {
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const argumentAttribute = blockArgument(node.type)
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const argument = spellArgument(node, argumentAttribute)
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if (argument === undefined) return undefined
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const spelled = argumentAttribute === undefined ? spelledByBody : [argumentAttribute, ...spelledByBody]
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const pairs = vocabularyPairs(nodeAttrs(node), directive.attributes, spelled)
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if (pairs === undefined) return undefined
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const spelledPairs = spellVocabulary(pairs)
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const marks = nodeMarks(node)
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if (marks.length > 0) spelledPairs.push([marksAttribute, spellJsonAttribute(markValues(marks))])
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const attributes = spellAttributes(spelledPairs)
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return `${node.type}${argument}${attributes === '' ? '' : ` ${attributes}`}`
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}
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function spellArgument(node: AdfNode, argumentAttribute: string | undefined): string | undefined {
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const value = argumentAttribute === undefined ? undefined : nodeAttrs(node)[argumentAttribute]
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if (value === undefined) return ''
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if (typeof value !== 'string' || !isBareToken(value)) return undefined
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return ` ${value}`
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}
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