typia/lib/internal/private/__notationRename.js

Superfast runtime validators with only one line

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.__notationRename = void 0;
/**
 * Shared outer walk for the `camel`/`pascal` notations.
 *
 * Mirrors the `CamelCase<T>` / `PascalCase<T>` typings: leading underscores are
 * preserved verbatim, an all-underscore key stays untouched, and the presence
 * of any remaining underscore — not the number of non-empty segments — selects
 * the `snake` conversion. Routing on underscore presence keeps a trailing or
 * doubled underscore (`fooBar_`) on the same path the type takes, instead of
 * collapsing it to the underscore-free `plain` path.
 */
const __notationRename = (props) => (str) => {
    let prefix = "";
    while (str.startsWith("_")) {
        prefix += "_";
        str = str.substring(1);
    }
    if (str.length === 0)
        return prefix;
    return `${prefix}${str.includes("_") ? props.snake(str) : props.plain(str)}`;
};
exports.__notationRename = __notationRename;
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