27 lines
665 B
Plaintext
27 lines
665 B
Plaintext
import AttributeMap from './AttributeMap';
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interface Op {
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// only one property out of {insert, delete, retain} will be present
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insert?: string | Record<string, unknown>;
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delete?: number;
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retain?: number | Record<string, unknown>;
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attributes?: AttributeMap;
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}
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namespace Op {
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export function length(op: Op): number {
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if (typeof op.delete === 'number') {
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return op.delete;
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} else if (typeof op.retain === 'number') {
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return op.retain;
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} else if (typeof op.retain === 'object' && op.retain !== null) {
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return 1;
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} else {
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return typeof op.insert === 'string' ? op.insert.length : 1;
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}
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}
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}
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export default Op;
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