import { SectionIdent } from "@keymanapp/ldml-keyboard-constants";
import { KMXPlus } from '@keymanapp/common-types';
import { CompilerCallbacks, LDMLKeyboard } from "@keymanapp/developer-utils";
import { SectionCompiler } from "./section-compiler.js";
import Bksp = KMXPlus.Bksp;
import DependencySections = KMXPlus.DependencySections;
import Tran = KMXPlus.Tran;
import LDMLKeyboardXMLSourceFile = LDMLKeyboard.LDMLKeyboardXMLSourceFile;
import { Substitutions } from "./substitution-tracker.js";
type TransformCompilerType = 'simple' | 'backspace';
export declare abstract class TransformCompiler<T extends TransformCompilerType, TranBase extends Tran> extends SectionCompiler {
    static validateSubstitutions(keyboard: LDMLKeyboard.LKKeyboard, st: Substitutions): boolean;
    protected type: T;
    constructor(source: LDMLKeyboardXMLSourceFile, callbacks: CompilerCallbacks);
    validate(): boolean;
    /** allocate a new TranBase subclass */
    protected newTran(): TranBase;
    private compileTransforms;
    private compileTransformGroup;
    private compileTransformTranGroup;
    private compileTransform;
    /**
     * Validate the 'to' string.
     * We have already checked that it's not a mapTo,
     * so there should not be any illegal substitutions.
     */
    private isValidTo;
    /**
     * Validate the final regex
     * @param cookedFrom the regex to use, missing the trailing '$'
     * @param from the original from - for error reporting
     * @returns true if OK
     */
    private isValidRegex;
    private compileReorderTranGroup;
    private compileReorder;
    compile(sections: DependencySections): TranBase;
    get dependencies(): Set<SectionIdent>;
    /**
     * Analyze reorders and regexes for \uXXXX escapes.
     * The LDML spec requires \u{XXXX} format.
     * @param cookedFrom the original string
     * @returns the original string, or null if an error was reported
     */
    private checkEscapes;
    /**
     * Analyze character classes such as '[a-z]' for denormalized characters.
     * Escapes non-NFD characters as hex escapes.
     * @param cookedFrom input regex string
     * @returns updated 'from' string
     */
    private checkRanges;
}
export declare class TranCompiler extends TransformCompiler<'simple', Tran> {
    constructor(source: LDMLKeyboardXMLSourceFile, callbacks: CompilerCallbacks);
    protected newTran(): Tran;
    get id(): SectionIdent;
}
export declare class BkspCompiler extends TransformCompiler<'backspace', Bksp> {
    constructor(source: LDMLKeyboardXMLSourceFile, callbacks: CompilerCallbacks);
    protected newTran(): Bksp;
    get id(): SectionIdent;
}
export {};
//# sourceMappingURL=tran.d.ts.map