import { Comparison } from './core';
export declare function isPatternInSymbol(typedValue: string, symbolName: string): boolean;
export declare function hashString(contents: string): number;
/**
 * Compare two strings using a case-insensitive ordinal comparison.
 *
 * Ordinal comparisons are based on the difference between the unicode code points of both
 * strings. Characters with multiple unicode representations are considered unequal. Ordinal
 * comparisons provide predictable ordering, but place "a" after "B".
 *
 * Case-insensitive comparisons compare both strings one code-point at a time using the integer
 * value of each code-point after applying `toUpperCase` to each string. We always map both
 * strings to their upper-case form as some unicode characters do not properly round-trip to
 * lowercase (such as `ẞ` (German sharp capital s)).
 */
export declare function compareStringsCaseInsensitive(a: string | undefined, b: string | undefined): Comparison;
/**
 * Compare two strings using a case-sensitive ordinal comparison.
 *
 * Ordinal comparisons are based on the difference between the unicode code points of both
 * strings. Characters with multiple unicode representations are considered unequal. Ordinal
 * comparisons provide predictable ordering, but place "a" after "B".
 *
 * Case-sensitive comparisons compare both strings one code-point at a time using the integer
 * value of each code-point.
 */
export declare function compareStringsCaseSensitive(a: string | undefined, b: string | undefined): Comparison;
export declare function getStringComparer(ignoreCase?: boolean): typeof compareStringsCaseInsensitive;
/**
 * Compare the equality of two strings using a case-insensitive ordinal comparison.
 *
 * Case-insensitive comparisons compare both strings one code-point at a time using the integer
 * value of each code-point after applying `toUpperCase` to each string. We always map both
 * strings to their upper-case form as some unicode characters do not properly round-trip to
 * lowercase (such as `ẞ` (German sharp capital s)).
 */
export declare function equateStringsCaseInsensitive(a: string, b: string): boolean;
/**
 * Compare the equality of two strings using a case-sensitive ordinal comparison.
 *
 * Case-sensitive comparisons compare both strings one code-point at a time using the
 * integer value of each code-point.
 */
export declare function equateStringsCaseSensitive(a: string, b: string): boolean;
export declare function getCharacterCount(value: string, ch: string): number;
export declare function getLastDottedString(text: string): string;
export declare function truncate(text: string, maxLength: number): string;
export declare function escapeRegExp(text: string): string;