import { LRLanguage, LanguageSupport } from '@codemirror/language';
import * as _codemirror_state from '@codemirror/state';

/**
BibTeX Language configuration with [syntax highlighting](https://codemirror.net/6/docs/ref/#language.syntaxHighlighting), [folding](https://codemirror.net/6/docs/ref/#language.foldNodeProp), and [indentation](https://codemirror.net/6/docs/ref/#language.indentNodeProp).
*/
declare const bibtexLanguage: LRLanguage;
/**
BibLaTeX Language configuration as a [dialect](https://lezer.codemirror.net/docs/ref/#lr.ParserConfig.dialect) of [BibTeX](https://codemirror.net/6/docs/ref/#lang-bibtex.bibtexLanguage).
*/
declare const biblatexLanguage: LRLanguage;
/**
[BibTeX](https://codemirror.net/6/docs/ref/#lang-bibtex.bibtexLanguage) language support with [BibLaTeX](https://codemirror.net/6/docs/ref/#lang-bibtex.biblatexLanguage) dialect support, autocompletion [configuration](https://codemirror.net/6/docs/ref/#lang-bibtex.bibtexCompletion), and [snippets](https://codemirror.net/6/docs/ref/#autocomplete.snippet) for both BibTeX and BibLaTeX that are suggested based on the editor [context](https://codemirror.net/6/docs/ref/#autocomplete.CompletionContext).

There are configuration options for the following:
- **BibTeX** vs **BibLaTeX** language support:
    - default: `biblatex: false`
    - defaults to BibTeX
- **Snippet Smart-Suggestion:**
    - default: `smartSuggest: true`
    - The smart-suggestion feature only suggests snippets for bibliography `entries` (i.e. `@article = {...}`) when the user *is not* currently editing an entry and only suggests snippets for bibliography `fields` (i.e. `author = {Donald Knuth}`) when the user *is* currently editing an entry.
- **Opinionated Snippets**:
    - default: `snippetRecs: true`
    - Snippets have been scaffolded as per the current [BibTeX](https://ctan.org/ctan-ann/id/mailman.3109.1292253131.2307.ctan-ann@dante.de)/[BibLaTeX](https://ctan.org/ctan-ann/id/mailman.404.1656879977.32352.ctan-ann@ctan.org) specs. The snippet [render config](https://codemirror.net/6/docs/ref/#autocomplete.CompletionSection), exclusion of certain snippets, and entry snippets' suggestion of recommendation/optional fields are done in an [opinionated](https://www.citedrive.com/en/blog/codemirror-bibtex-plugin) manner ([suggestions](https://github.com/citedrive/codemirror-lang-bibtex/issues) are welcome!).
- **Syntax Linting**:
    - default: `syntaxLinter: true`
    - Invalid BibTeX (and BibLaTeX) syntax is underlined in red and a warning is issued, thanks to [bibtex-tidy](https://github.com/flamingtempura/bibtex-tidy).
- **Custom Keywords**:
    - default: `keywords: []`
    - Users can specify custom keywords/values that will be auto-suggested when within a `FieldValue` syntax node.
*/
declare function bibtex(config?: {
    biblatex?: boolean;
    smartSuggest?: boolean;
    snippetRecs?: boolean;
    syntaxLinter?: boolean;
    keywords?: readonly string[];
}): LanguageSupport;

/**
BibTeX autocompletion [configuration](https://codemirror.net/6/docs/ref/#autocomplete.autocompletion^config).
*/
declare const bibtexCompletion: _codemirror_state.Extension;

/**
BibTeX [syntax linter](https://codemirror.net/6/docs/ref/#lint.Diagnostic).
*/
declare const bibtexLinter: _codemirror_state.Extension;

export { biblatexLanguage, bibtex, bibtexCompletion, bibtexLanguage, bibtexLinter };