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octal over 255 illegal example

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I was curious of the behavior referring to octal values over 255.  It wasn't clear if the expected behavior was a compile error, if value would be encoded as two characters, or if it would be capped at 255.  

This example explicitly show that octal values over 255 are illegal.
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Zach Collier 2022-04-01 16:03:32 -06:00 committed by GitHub
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@ -529,6 +529,7 @@ escaped_char = `\` ( "a" | "b" | "f" | "n" | "r" | "t" | "v" | `\` | "'" | `
'aa' // illegal: too many characters
'\xa' // illegal: too few hexadecimal digits
'\0' // illegal: too few octal digits
'\400' // illegal: octal value over 255
'\uDFFF' // illegal: surrogate half
'\U00110000' // illegal: invalid Unicode code point
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