auri/dist/utils/int.js

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export function convertPositiveIntegerString(s) {
    if (s.length === 0) {
        throw new Error("Failed to parse string");
    }
    for (let i = 0; i < s.length; i++) {
        const code = s.charCodeAt(i);
        // is leading zero
        if (s.length > 1 && i === 0 && code === 0x30) {
            throw new Error("Failed to parse string");
        }
        if (code < 0x30 || code > 0x39) {
            throw new Error("Failed to parse string");
        }
    }
    return Number(s);
}