NLCST Affix Emoticon Modifier

nlcst-affix-emoticon-modifier is a utility within the unified ecosystem designed to process Natural Language Concrete Syntax Tree (NLCST) nodes. Its primary function is to identify and re-position emoticons that appear at the beginning of a sentence, moving them to the end of the preceding sentence. This addresses common linguistic patterns where users place emoticons as a reaction to the previous thought, even after terminal punctuation. The current stable version is 3.0.0, which requires Node.js 16+. While a low-level utility, it forms a crucial part of more abstracted tools like `retext-emoji`. The project follows semver for releases, with significant breaking changes in major versions, particularly the move to ESM-only in v2 and further API adjustments in v3.