Initial release: Sept 2007
Peter
Provides case mapping Functions for Unicode Strings. As of now it is
only 99 % complete, because it does not take into account Conditional
case mappings. This means the Greek Letter Sigma will not be correctly
case mapped at the end of a Word, and the Locales Lithuanian, Turkish
and Azeri are not taken into account during Case Mappings. This means
all in all around 12 Characters will not be mapped correctly under
some circumstances.
ICU4j also does not handle these cases at the moment.
Unittests are written against output from ICU4j
This Module tries to minimize Memory allocation and usage. You can
always pass the output buffer that should be used to the case mapping
function, which will be resized if necessary.
- char[] toUpper(const(char)[] input, char[] output = null) ¶
-
Converts an Utf8 String to Upper case
| input | String to be case mapped |
| output | this output buffer will be used unless too small |
the case mapped string
Converts an Utf8 String to Upper case
| input | String to be case mapped |
| output | this output buffer will be used unless too small |
the case mapped string
- wchar[] toUpper(const(wchar)[] input, wchar[] output = null) ¶
-
Converts an Utf16 String to Upper case
| input | String to be case mapped |
| output | this output buffer will be used unless too small |
the case mapped string
- dchar[] toUpper(const(dchar)[] input, dchar[] output = null) ¶
-
Converts an Utf32 String to Upper case
| input | String to be case mapped |
| output | this output buffer will be used unless too small |
the case mapped string
- char[] toLower(const(char)[] input, char[] output = null) ¶
-
Converts an Utf8 String to Lower case
| input | String to be case mapped |
| output | this output buffer will be used unless too small |
the case mapped string
- wchar[] toLower(const(wchar)[] input, wchar[] output = null) ¶
-
Converts an Utf16 String to Lower case
| input | String to be case mapped |
| output | this output buffer will be used unless too small |
the case mapped string
- dchar[] toLower(const(dchar)[] input, dchar[] output = null) ¶
-
Converts an Utf32 String to Lower case
| input | String to be case mapped |
| output | this output buffer will be used unless too small |
the case mapped string
- char[] toFold(const(char)[] input, char[] output = null) ¶
-
Converts an Utf8 String to Folding case
Folding case is used for case insensitive comparsions.
| input | String to be case mapped |
| output | this output buffer will be used unless too small |
the case mapped string
- wchar[] toFold(const(wchar)[] input, wchar[] output = null) ¶
-
Converts an Utf16 String to Folding case
Folding case is used for case insensitive comparsions.
| input | String to be case mapped |
| output | this output buffer will be used unless too small |
the case mapped string
- dchar[] toFold(const(dchar)[] input, dchar[] output = null) ¶
-
Converts an Utf32 String to Folding case
Folding case is used for case insensitive comparsions.
| input | String to be case mapped |
| output | this output buffer will be used unless too small |
the case mapped string
- bool isDigit(dchar ch) ¶
-
Determines if a character is a digit. It returns true for decimal
digits only.
| ch | the character to be inspected |
- bool isLetter(int ch) ¶
-
Determines if a character is a letter.
| ch | the character to be inspected |
- bool isLetterOrDigit(int ch) ¶
-
Determines if a character is a letter or a
decimal digit.
| ch | the character to be inspected |
- bool isLower(dchar ch) ¶
-
Determines if a character is a lower case letter.
| ch | the character to be inspected |
- bool isTitle(dchar ch) ¶
-
Determines if a character is a title case letter.
In case of combined letters, only the first is upper and the second is lower.
Some of these special characters can be found in the croatian and greek language.
http://en.wikipedia.org/wiki/Capitalization
| ch | the character to be inspected |
- bool isUpper(dchar ch) ¶
-
Determines if a character is a upper case letter.
| ch | the character to be inspected |
- bool isWhitespace(dchar ch) ¶
-
Determines if a character is a Whitespace character.
Whitespace characters are characters in the
General Catetories Zs, Zl, Zp without the No Break
spaces plus the control characters out of the ASCII
range, that are used as spaces:
TAB VT LF FF CR FS GS RS US NL
look at isSpace, maybe that function does
more what you expect.
| ch | the character to be inspected |
- bool isSpace(dchar ch) ¶
-
Detemines if a character is a Space character as
specified in the Unicode Standard.
look at isWhitespace, maybe that function does
more what you expect.
| ch | the character to be inspected |
- bool isPrintable(dchar ch) ¶
-
Detemines if a character is a printable character as
specified in the Unicode Standard.
| ch | the character to be inspected |