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This commit moves several of readline's undocumented functions into an internal module. Specifically, isFullWidthCodePoint, stripVTControlCharacters, getStringWidth, and emitKeys are moved to the internal module. The existing public exports of the first three functions are given a deprecation notice. Refs: https://github.com/nodejs/node/pull/3847 Fixes: https://github.com/nodejs/node/issues/3836 PR-URL: https://github.com/nodejs/node/pull/3862 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Brian White <mscdex@mscdex.net>
Internal Modules
The modules in lib/internal are intended for internal use in Node.js core only, and are not accessible with require() from user modules.
These are subject to change at any time. Reliance on these modules outside of core is not supported in any way.