/**
 * Copyright 2017 Matt Acosta
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { BomKind } from './BomKind';
import { Encoding } from './Encoding';
import { ISourceText } from './ISourceText';
/**
 * @todo Document SourceTextFactory.
 */
export declare class SourceTextFactory {
    /**
     * An empty source text container.
     */
    static readonly EmptyText: ISourceText;
    /**
     * The maximum length of a string before a more efficient source text
     * container is created.
     *
     * @todo Experimental.
     * @todo Unused.
     */
    protected static readonly LargeTextLimit: number;
    /**
     * Creates a source text object from a string.
     *
     * @param {string} text
     *   A string containing source code.
     * @param {Encoding=} encoding
     *   The original encoding of the source text. Defaults to `Encoding.Utf8`.
     */
    static from(text: string, encoding?: Encoding): ISourceText;
    /**
     * Attempts to determine if a byte order mark is present in the source text.
     *
     * @param {Uint8Array} buffer
     *   A byte-array containing the encoded source text.
     * @param {number} length
     *   The number of valid bytes in the buffer.
     */
    static tryReadByteOrderMark(buffer: Uint8Array, length: number): BomKind;
}