/usr/share/gnu-smalltalk/kernel/UniString.st is in gnu-smalltalk-common 3.2.5-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 | "======================================================================
|
| UnicodeString Method Definitions
|
|
======================================================================"
"======================================================================
|
| Copyright 2006, 2009 Free Software Foundation, Inc.
| Written by Paolo Bonzini.
|
| This file is part of the GNU Smalltalk class library.
|
| The GNU Smalltalk class library is free software; you can redistribute it
| and/or modify it under the terms of the GNU Lesser General Public License
| as published by the Free Software Foundation; either version 2.1, or (at
| your option) any later version.
|
| The GNU Smalltalk class library is distributed in the hope that it will be
| useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
| General Public License for more details.
|
| You should have received a copy of the GNU Lesser General Public License
| along with the GNU Smalltalk class library; see the file COPYING.LIB.
| If not, write to the Free Software Foundation, 59 Temple Place - Suite
| 330, Boston, MA 02110-1301, USA.
|
======================================================================"
CharacterArray subclass: UnicodeString [
<shape: #utf32>
<category: 'Collections-Text'>
<comment: 'My instances represent Unicode string data types. Data is stored
as 4-byte UTF-32 characters'>
UnicodeString class >> fromString: aString [
"Return the String, aString, converted to its Unicode representation.
Unless the I18N package is loaded, this is not implemented."
<category: 'converting'>
^aString asUnicodeString
]
UnicodeString class >> defaultEncoding [
"Answer the encoding used by the receiver. Conventionally, we
answer 'Unicode' to ensure that two UnicodeStrings always have
the same encoding."
<category: 'multibyte encodings'>
^'Unicode'
]
UnicodeString class >> isUnicode [
"Answer true; the receiver stores characters."
<category: 'multibyte encodings'>
^true
]
asString [
"Returns the string corresponding to the receiver. Without the
Iconv package, unrecognized Unicode characters become $?
characters. When it is loaded, an appropriate single- or
multi-byte encoding could be used."
<category: 'converting'>
| s each |
s := String new: self size.
1 to: self size
do:
[:i |
each := self basicAt: i.
s at: i
put: ((each value between: 0 and: 127)
ifTrue: [each asCharacter]
ifFalse: [$?])].
^s
]
asSymbol [
"Returns the symbol corresponding to the receiver"
<category: 'converting'>
^self asString asSymbol
]
asUnicodeString [
"But I already am a UnicodeString! Really!"
<category: 'converting'>
^self
]
displayOn: aStream [
"Print a representation of the receiver on aStream"
<category: 'converting'>
self do: [:char | char displayOn: aStream]
]
printOn: aStream [
"Print a representation of the receiver on aStream"
<category: 'converting'>
aStream nextPut: $'.
self do:
[:char |
char == $' ifTrue: [aStream nextPut: char].
char displayOn: aStream].
aStream nextPut: $'
]
at: anIndex ifAbsent: aBlock [
"Answer the index-th indexed instance variable of the receiver"
<category: 'built ins'>
<primitive: VMpr_Object_basicAt>
^self checkIndexableBounds: anIndex ifAbsent: aBlock
]
encoding [
"Answer the encoding used by the receiver. Conventionally, we
answer 'Unicode' to ensure that two UnicodeStrings always have
the same encoding."
<category: 'multibyte encodings'>
^'Unicode'
]
numberOfCharacters [
"Answer the number of Unicode characters in the receiver. This is
the same as #size for UnicodeString."
<category: 'multibyte encodings'>
^self size
]
hash [
"Answer an hash value for the receiver"
<category: 'built-ins'>
<primitive: VMpr_String_hash>
^0
]
]
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