Unicode strings: Difference between revisions
→{{header|Wren}}: Added a upc example.
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=={{header|Wren}}==
{{libheader|Wren-upc}}
Wren source code files are interpreted as UTF-8 encoded and so it is easy to include Unicode strings within scripts.
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However, string indexing (including methods which use or return an index) is done by byte offset as the use of code-point indexing is relatively inefficient.
The standard library does not support normalization but the
<lang ecmascript>var w = "voilà"
for (c in w) {
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System.write("%(b) ") // prints the bytes as numbers
}
var zwe = "👨👩👧"
System.print("\n\n%(zwe) has:")
System.print(" %(zwe.bytes.count) bytes: %(zwe.bytes.toList.join(" "))")
System.print(" %(zwe.codePoints.count) code-points: %(zwe.codePoints.toList.join(" "))")
System.print(" %(Graphemes.clusterCount(zwe)) grapheme")</lang>
{{out}}
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Its bytes are:
118 111 105 108 195 160
👨👩👧 has:
18 bytes: 240 159 145 168 226 128 141 240 159 145 169 226 128 141 240 159 145 167
5 code-points: 128104 8205 128105 8205 128103
1 grapheme
</pre>
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