agentfootprint/dist/esm/core/agent/evidence/numericRanges.js

The explainable agent framework — backtrack a wrong answer to the exact context that caused it (evidence, not guesses). Built on footprintjs.

/** Pure answer-side recognition: exactly two plain numeric endpoints. */
import { answerTokenSpellings } from '../../../lib/normalize.js';
import { FIGURE_UNITS } from './figureUnits.js';
// Anchored endpoints exclude dates, clocks, dotted versions and multipart IDs.
const RANGE = /^([-+]?\d+(?:\.\d+)?)[-–]([-+]?\d+(?:\.\d+)?)([%a-z]+(?:\/s)?)?$/;
const UNITS = new Set(FIGURE_UNITS.flatMap((unit) => [unit, `${unit}/s`]));
export function splitNumericRange(token, following) {
    const matched = RANGE.exec(token);
    if (matched?.[1] === undefined || matched[2] === undefined)
        return undefined;
    const suffix = matched[3];
    if (suffix !== undefined && !UNITS.has(suffix))
        return undefined;
    const unit = suffix ?? (following !== undefined && UNITS.has(following) ? following : undefined);
    return { first: matched[1], last: matched[2], ...(unit !== undefined && { unit }) };
}
/** Measurement ranges augment the existing figure vocabulary on the answer side only. */
export function numericRangesOf(answer) {
    const tokens = answerTokenSpellings(answer);
    const ranges = [];
    for (let index = 0; index < Math.min(tokens.length, 20_000); index += 1) {
        const range = splitNumericRange(tokens[index] ?? '', tokens[index + 1]);
        if (range !== undefined)
            ranges.push(range);
    }
    return ranges;
}
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