typia
Version:
Superfast runtime validators with only one line
24 lines (23 loc) • 914 B
JavaScript
//#region src/internal/private/__notationRename.ts
/**
* 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)}`;
};
//#endregion
export { __notationRename };
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