/** 首字母大写 apple -> Apple */
export declare function textCapitalize(str: string): string;
/** 横杠转驼峰 user-tools -> userTools */
export declare function textCamelize(str: string): string;
/** 驼峰转横杠 userTools  -> user-tools */
export declare function textHyphenate(str: string): string;
/** 分割字符串
 *  按照驼峰、横杠、下划线、空格来分词
 *
 * @example
 * "userTools" -> ["user", "Tools"]
 * "user-tools" -> ["user", "Tools"]
 * "user_tools" -> ["user", "Tools"]
 * "user tools" -> ["user", "Tools"]
 */
export declare function splitTextByCase(text: string): string[];
/**
 * 将字符串按照驼峰、横杠、下划线、空格来分词，然后转换为大写、小写、首字母大写
 * @example textCaseToSpace("userTools", "upper") -> "USER TOOLS"
 * @param text
 * @param caseType
 */
export declare function textCaseToSpace(text: string, caseType?: "upper" | "lower" | "title"): string;
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