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Optimize saslprep by checking if input is only ASCII printable characters #1

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xdg opened this issue Feb 18, 2018 · 0 comments
Open

Optimize saslprep by checking if input is only ASCII printable characters #1

xdg opened this issue Feb 18, 2018 · 0 comments

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@xdg
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xdg commented Feb 18, 2018

If the characters in the input string are all ASCII printable (0x20 - 0x7E), then checking every rune for mapping/prohibition/etc. is unnecessary and expensive. At the cost of an additional pass over the string, this common case can be made much faster.
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