import { LexerToken } from '../../interfaces/lexer-token';
import { HttpClient } from '@angular/common/http';
import { LanguageService } from '../language/language.service';
export declare class Lexer {
    private http;
    private language;
    private individuals;
    private individualContext;
    constructor(http: HttpClient, language: LanguageService);
    /**
     * Checks if a given character sequence matches an integer value.
     * @param chars A character sequence from the lexer
     * @return True if the character sequence matches an integer, otherwise false
     */
    isInteger(chars: string): boolean;
    /**
     * Checks if a given character sequence matches a float value.
     * @param chars A character sequence from the lexer
     * @return True if the character sequence matches a float, otherwise false
     */
    isFloat(chars: string): boolean;
    /**
     * Detects which token should be generated for a given character sequence,
     * and returns the corresponding token object.
     * @param chars A character sequence from the lexer
     * @param i
     * @return
     */
    getTokenObject(chars: string, i: number): LexerToken;
    /**
     * Removes all empty tokens from a token array.
     * @param tokens A token array from the lexer
     * @return An array of all remaining non-empty tokens in correct order
     */
    removeEmptyTokens(tokens: LexerToken[]): LexerToken[];
    /**
     * Converts a given token's "which" property into a corresponding CSS class.
     * This is done by replacing camel case syntax by hyphens (-) and small letters.
     * @param tokenWhich A token's "which" property
     * @return The corresponding CSS class name
     */
    getCssClass(tokenWhich: LexerToken['which']): string;
    /**
     * Performs lexing operations on each code line successively.
     * @param code An array of BBScript code lines
     * @return An array of arrays, containing all tokens per code line
     */
    lexCode(code: string[]): Array<LexerToken[]>;
    lexCodeReactive(code: Array<string[]>): Array<LexerToken[]>;
    /**
     * Performs lexing operations on a BBScript code line.
     * @param codeLine A string consisting of plain BBScript code
     * @return An array of tokens which represent the code's components
     */
    lexLine(codeLine: string): LexerToken[];
    /**
     * Performs a syntax highlighting by taking into account all tokens and generating a span for each token,
     * giving them adequate CSS classes which are defined in an editor theme CSS file.
     * @param codeLine A line of BBScript code
     * @return
     */
    syntaxHighlighting(codeLine: string): string;
}