UnicodeSetOptions Enum

Bitmask for constructor and applyPattern() indicating that white space should be ignored. If set, ignore Unicode Pattern_White_Space characters, unless they are quoted or escaped. This may be ORed together with other selectors.

Android reference for android.icu.text.UnicodeSet.IGNORE_SPACE.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

This constant was deprecated in API level 35. ICU 73 Use CASE_INSENSITIVE instead.

Alias for CASE_INSENSITIVE.

Android reference for android.icu.text.UnicodeSet.CASE.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Enable case insensitive matching. E.g., "[ab]" with this flag will match 'a', 'A', 'b', and 'B'. "[^ab]" with this flag will match all except 'a', 'A', 'b', and 'B'. This performs a full closure over case mappings, e.g. 'ſ' (U+017F long s) for 's'. This value is an options bit set value for some constructors, applyPattern(), and closeOver(). It can be ORed together with other, unrelated options. The resulting set is a superset of the input for the code points but not for the strings. It performs a case mapping closure of the code points and adds full case folding strings for the code points, and reduces strings of the original set to their full case folding equivalents. This is designed for case-insensitive matches, for example in regular expressions. The full code point case closure allows checking of an input character directly against the closure set. Strings are matched by comparing the case-folded form from the closure set with an incremental case folding of the string in question. The closure set will also contain single code points if the original set contained case-equivalent strings (like U+00DF for "ss" or "Ss" etc.). This is not necessary (that is, redundant) for the above matching method but results in the same closure sets regardless of whether the original set contained the code point or a string.

Android reference for android.icu.text.UnicodeSet.CASE_INSENSITIVE.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Adds all case mappings for each element in the set. This adds the full lower-, title-, and uppercase mappings as well as the full case folding of each existing element in the set. This value is an options bit set value for some constructors, applyPattern(), and closeOver(). It can be ORed together with other, unrelated options. Unlike the “case insensitive” options, this does not perform a closure. For example, it does not add 'ſ' (U+017F long s) for 's', 'K' (U+212A Kelvin sign) for 'k', or replace set strings by their case-folded versions.

Android reference for android.icu.text.UnicodeSet.ADD_CASE_MAPPINGS.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Enable case insensitive matching. Same as CASE_INSENSITIVE but using only Simple_Case_Folding (scf) mappings, which map each code point to one code point, not full Case_Folding (cf) mappings, which map some code points to multiple code points. This is designed for case-insensitive matches, for example in certain regular expression implementations where only Simple_Case_Folding mappings are used, such as in ECMAScript (JavaScript) regular expressions. This value is an options bit set value for some constructors, applyPattern(), and closeOver(). It can be ORed together with other, unrelated options.

Android reference for android.icu.text.UnicodeSet.SIMPLE_CASE_INSENSITIVE.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.