/**
 * A minimal, dependency-free LaTeX tokenizer for the paper editor's syntax
 * highlight overlay. Robustness beats completeness: anything unrecognized
 * stays `plain` — a missed highlight is fine, a misaligned one is not.
 * Rules: comments run from an unescaped `%` to end of line; commands are
 * `\letters` with an optional `*`; the environment name inside
 * `\begin{env}`/`\end{env}` is its own token; `$...$` (same line only) and
 * `$$...$$` are one math token each, an unclosed `$` falls back to plain;
 * braces and brackets are single-char tokens; two-character backslash escapes
 * (`\%`, `\$`, `\\`…) are plain so they never start a comment or command.
 * @module dsh-client-ui-mimir/client/latex-highlight
 */
/** Token categories the overlay colors. */
export type LatexTokenType = 'plain' | 'comment' | 'command' | 'math' | 'brace' | 'bracket' | 'env';
/** One token: its category and exact source slice (concatenation reproduces the input). */
export interface LatexToken {
    readonly type: LatexTokenType;
    readonly text: string;
}
/**
 * Source length above which the editor skips highlighting entirely — the
 * token list is rebuilt on every keystroke, and a pathological file must not
 * freeze the panel.
 */
export declare const HIGHLIGHT_MAX_LENGTH = 200000;
/**
 * Tokenize LaTeX source for the highlight overlay. The concatenation of all
 * token texts always equals the input, so the overlay can never drift from
 * the textarea's content.
 * @param text - the full `main.tex` source.
 * @returns the token list; adjacent `plain` runs are merged.
 */
export declare function tokenizeLatex(text: string): LatexToken[];
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