52 lines
1.9 KiB
Plaintext
52 lines
1.9 KiB
Plaintext
import { AnyConfig } from './types'
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/**
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* Sorts modifiers according to following schema:
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* - Predefined modifiers are sorted alphabetically
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* - When an arbitrary variant appears, it must be preserved which modifiers are before and after it
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*/
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export const createSortModifiers = (config: AnyConfig) => {
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// Pre-compute weights for all known modifiers for O(1) comparison
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const modifierWeights = new Map<string, number>()
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// Assign weights to sensitive modifiers (highest priority, but preserve order)
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config.orderSensitiveModifiers.forEach((mod, index) => {
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modifierWeights.set(mod, 1000000 + index) // High weights for sensitive mods
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})
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return (modifiers: readonly string[]): string[] => {
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const result: string[] = []
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let currentSegment: string[] = []
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// Process modifiers in one pass
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for (let i = 0; i < modifiers.length; i++) {
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const modifier = modifiers[i]!
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// Check if modifier is sensitive (starts with '[' or in orderSensitiveModifiers)
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const isArbitrary = modifier[0] === '['
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const isOrderSensitive = modifierWeights.has(modifier)
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if (isArbitrary || isOrderSensitive) {
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// Sort and flush current segment alphabetically
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if (currentSegment.length > 0) {
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currentSegment.sort()
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result.push(...currentSegment)
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currentSegment = []
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}
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result.push(modifier)
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} else {
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// Regular modifier - add to current segment for batch sorting
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currentSegment.push(modifier)
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}
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}
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// Sort and add any remaining segment items
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if (currentSegment.length > 0) {
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currentSegment.sort()
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result.push(...currentSegment)
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}
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return result
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}
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}
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