54 lines
947 B
Markdown
54 lines
947 B
Markdown
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---
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type: scan
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expect: BoltIdentifier
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split-lines: true
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---
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The most simple identifiers are those made out of ASCII letters:
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Foo
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Bar
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Baz
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However, they may also contain digits as long as they do not begin with a
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digit:
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Var1
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Var2
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Var10029384
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Identifiers may be as long as you want:
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ThisIsALongAndValidIdentifier
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ThisIsAnEvenLongButStilCompletelyValidIdentifier
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Moreover, they may have arbitrary underscores (`_`) in their names.
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a_valid_identifier
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another__0000__valid_identfier
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_1
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__2
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___3
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They may even be nothing more than underscores:
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_
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__
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___
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All identifiers starting with a `ID_Start` character are valid identifiers,
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including `Other_ID_Start`:
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℘rototype
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℮llipsis
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Likewise, the following code points using `Other_ID_Continue` are also valid:
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α·β
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ano·teleia
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And, of course, the combination of `ID_Start` and `ID_Continue`:
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alfa·beta
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