Added in API level 29

CaseMap.Title

public static final class CaseMap.Title
extends CaseMap

java.lang.Object
   ↳ android.icu.text.CaseMap
     ↳ android.icu.text.CaseMap.Title


Titlecasing options and methods. Immutable.

See also:

Summary

Public methods

CaseMap.Title adjustToCased()

Returns an instance that behaves like this one but adjusts each titlecasing BreakIterator index to the next cased character.

String apply(Locale locale, BreakIterator iter, CharSequence src)

Titlecases a string.

<A extends Appendable> A apply(Locale locale, BreakIterator iter, CharSequence src, A dest, Edits edits)

Titlecases a string and optionally records edits (see omitUnchangedText()).

CaseMap.Title noBreakAdjustment()

Returns an instance that behaves like this one but does not adjust the titlecasing BreakIterator indexes; titlecases exactly the characters at breaks from the iterator.

CaseMap.Title noLowercase()

Returns an instance that behaves like this one but does not lowercase non-initial parts of words when titlecasing.

CaseMap.Title omitUnchangedText()

Returns an instance that behaves like this one but omits unchanged text when case-mapping with Edits.

CaseMap.Title sentences()

Returns an instance that behaves like this one but titlecases sentences rather than words.

CaseMap.Title wholeString()

Returns an instance that behaves like this one but titlecases the string as a whole rather than each word.

Inherited methods

Public methods

adjustToCased

Added in API level 29
public CaseMap.Title adjustToCased ()

Returns an instance that behaves like this one but adjusts each titlecasing BreakIterator index to the next cased character. (See the Unicode Standard, chapter 3, Default Case Conversion, R3 toTitlecase(X).)

This used to be the default index adjustment in ICU. Since ICU 60, the default index adjustment is to the next character that is a letter, number, symbol, or private use code point. (Uncased modifier letters are skipped.) The difference in behavior is small for word titlecasing, but the new adjustment is much better for whole-string and sentence titlecasing: It yields "49ers" and "«\u4e30(abc)»" instead of "49Ers" and "«\u4e30(Abc)»".

It is an error to specify multiple titlecasing adjustment options together.

Returns
CaseMap.Title an options object with this option.

apply

Added in API level 29
public String apply (Locale locale, 
                BreakIterator iter, 
                CharSequence src)

Titlecases a string. Casing is locale-dependent and context-sensitive. The result may be longer or shorter than the original.

Titlecasing uses a break iterator to find the first characters of words that are to be titlecased. It titlecases those characters and lowercases all others. (This can be modified with options bits.)

Parameters
locale Locale: The locale ID. Can be null for Locale#getDefault. (See ULocale#toLocale.)

iter BreakIterator: A break iterator to find the first characters of words that are to be titlecased. It is set to the source string (setText()) and used one or more times for iteration (first() and next()). If null, then a word break iterator for the locale is used (or something equivalent).

src CharSequence: The original string.

Returns
String the result string.

apply

Added in API level 29
public A apply (Locale locale, 
                BreakIterator iter, 
                CharSequence src, 
                A dest, 
                Edits edits)

Titlecases a string and optionally records edits (see omitUnchangedText()). Casing is locale-dependent and context-sensitive. The result may be longer or shorter than the original.

Titlecasing uses a break iterator to find the first characters of words that are to be titlecased. It titlecases those characters and lowercases all others. (This can be modified with options bits.)

Parameters
locale Locale: The locale ID. Can be null for Locale#getDefault. (See ULocale#toLocale.)

iter BreakIterator: A break iterator to find the first characters of words that are to be titlecased. It is set to the source string (setText()) and used one or more times for iteration (first() and next()). If null, then a word break iterator for the locale is used (or something equivalent).

src CharSequence: The original string.

dest A: A buffer for the result string. Must not be null.

edits Edits: Records edits for index mapping, working with styled text, and getting only changes (if any). This function calls edits.reset() first. edits can be null.

Returns
A dest with the result string (or only changes) appended.

noBreakAdjustment

Added in API level 29
public CaseMap.Title noBreakAdjustment ()

Returns an instance that behaves like this one but does not adjust the titlecasing BreakIterator indexes; titlecases exactly the characters at breaks from the iterator.

By default, titlecasing will take each break iterator index, adjust it to the next relevant character (see adjustToCased()), and titlecase that one.

Other characters are lowercased.

Returns
CaseMap.Title an options object with this option.

noLowercase

Added in API level 29
public CaseMap.Title noLowercase ()

Returns an instance that behaves like this one but does not lowercase non-initial parts of words when titlecasing.

By default, titlecasing will titlecase the character at each (possibly adjusted) BreakIterator index and lowercase all other characters up to the next iterator index. With this option, the other characters will not be modified.

Returns
CaseMap.Title an options object with this option.

omitUnchangedText

Added in API level 29
public CaseMap.Title omitUnchangedText ()

Returns an instance that behaves like this one but omits unchanged text when case-mapping with Edits.

Returns
CaseMap.Title an options object with this option.

sentences

Added in API level 29
public CaseMap.Title sentences ()

Returns an instance that behaves like this one but titlecases sentences rather than words. (Titlecases only the first character of each sentence, possibly adjusted.)

It is an error to specify multiple titlecasing iterator options together, including both an option and an explicit BreakIterator.

Returns
CaseMap.Title an options object with this option.

See also:

wholeString

Added in API level 29
public CaseMap.Title wholeString ()

Returns an instance that behaves like this one but titlecases the string as a whole rather than each word. (Titlecases only the character at index 0, possibly adjusted.)

It is an error to specify multiple titlecasing iterator options together, including both an option and an explicit BreakIterator.

Returns
CaseMap.Title an options object with this option.

See also: