String length: Difference between revisions
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In Lua, a character is always the size of one byte so there is no difference between byte length and character length. |
In Lua, a character is always the size of one byte so there is no difference between byte length and character length. |
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===Byte Length=== |
===Byte Length=== |
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Byte length in UTF-8: |
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<syntaxhighlight lang="lua">str = "Hello world" |
<syntaxhighlight lang="lua">str = "Hello world" |
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length = #str</syntaxhighlight> |
length = #str</syntaxhighlight> |
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===Character Length=== |
===Character Length=== |
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Only valid for ASCII: |
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<syntaxhighlight lang="lua">str = "Hello world" |
<syntaxhighlight lang="lua">str = "Hello world" |
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length = #str</syntaxhighlight> |
length = #str</syntaxhighlight> |
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<syntaxhighlight lang="lua">str = "Hello world" |
<syntaxhighlight lang="lua">str = "Hello world" |
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length = string.len(str)</syntaxhighlight> |
length = string.len(str)</syntaxhighlight> |
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For Unicode string, use utf8 module: |
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<syntaxhighlight lang="lua"> |
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utf8.len("møøse") |
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utf8.len("𝔘𝔫𝔦𝔠𝔬𝔡𝔢") |
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utf8.len("J̲o̲s̲é̲") |
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</syntaxhighlight> |
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{{out}} |
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<pre> |
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5 |
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7 |
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8 |
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</pre> |
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=={{header|M2000 Interpreter}}== |
=={{header|M2000 Interpreter}}== |
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