107 lines
2.5 KiB
Text
107 lines
2.5 KiB
Text
class::Char
|
|
summary::ASCII character
|
|
related::Classes/String
|
|
categories:: Core
|
|
|
|
description::
|
|
An ASCII character represented as a signed 8-bit integer (-128 to 127).
|
|
Valid ASCII values are in the range 0-127.
|
|
Chars may be written as literals using the $ sign. For example: $a, $b, $c.
|
|
Some special characters can be expressed as literals using escape sequences (for example, code::$\n:: for newline).
|
|
See link::Reference/Literals#Characters:: for more information.
|
|
|
|
Chars may be created from link::Classes/Integer##Integers:: using the methods link::Classes/Integer#-asAscii:: and link::Classes/Integer#-asDigit::.
|
|
|
|
Note that, while Char does not support encodings aside from ASCII—such as
|
|
multi-byte encodings like UTF-8 and UTF-16, or the full Latin-1 (ISO 8859-1)
|
|
character set—Chars with negative values are perfectly legal, and may be strung
|
|
together in strings that use these encodings.
|
|
|
|
The SuperCollider IDE uses UTF-8 to decode and display strings.
|
|
See link::Classes/String:: for more information.
|
|
|
|
classmethods::
|
|
|
|
method::nl
|
|
Newline code::($\n)::.
|
|
|
|
method::ret
|
|
Carriage return code::($\r)::.
|
|
|
|
method::tab
|
|
Horizontal tab code::($\t)::.
|
|
|
|
method::ff
|
|
Form feed code::($\f)::.
|
|
|
|
method::vtab
|
|
Vertical tab code::($\v)::.
|
|
|
|
method::space
|
|
Single space code::($ )::.
|
|
|
|
method::comma
|
|
Comma code::($,)::.
|
|
|
|
method::bullet
|
|
Asterisk code::($*)::.
|
|
|
|
instancemethods::
|
|
private:: archiveAsCompileString
|
|
|
|
subsection::conversion
|
|
|
|
method::ascii
|
|
|
|
returns:: the integer ASCII value of a Char.
|
|
|
|
method::digit
|
|
|
|
returns:: an integer value from 0 to 9 for chars $0 to $9, and values 10 to 35 for chars $a to $z
|
|
or $A to $Z.
|
|
|
|
method::toUpper
|
|
|
|
returns:: the upper case version of a char. Nonalphabetic chars return themselves.
|
|
|
|
method::toLower
|
|
|
|
returns:: a lower case version of a char. Nonalphabetic chars return themselves.
|
|
|
|
subsection:: Testing
|
|
|
|
method::isAlpha
|
|
|
|
returns:: whether the char is an alphabetic character.
|
|
|
|
method::isAlphaNum
|
|
|
|
returns:: whether the char is an alphabetic or numeric character.
|
|
|
|
method::isPrint
|
|
|
|
returns:: whether the char is printable.
|
|
|
|
method::isPunct
|
|
|
|
returns:: whether the char is a punctuation character.
|
|
|
|
method::isSpace
|
|
|
|
returns:: true if the char is white space: any of code::[$ , $\f, $\n, $\r, $\t, $\v]::.
|
|
|
|
method::isDecDigit
|
|
|
|
returns:: true if the char is a decimal digit $0 to $9.
|
|
|
|
method::isFileSafe
|
|
|
|
returns:: true if the char is safe for use in a filename.
|
|
Excludes the path separators / and :
|
|
discussion::
|
|
code::
|
|
for(0,255,{ arg i;
|
|
var a;
|
|
[i,a = i.asAscii,a.isAlphaNum,a.isPrint,a.isPunct,a.isControl].postln;
|
|
});
|
|
::
|