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26 lines
518 B
26 lines
518 B
"use strict"; |
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// Note that we take code points as JS numbers, not JS strings. |
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function isASCIIDigit(c) { |
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return c >= 0x30 && c <= 0x39; |
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} |
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function isASCIIAlpha(c) { |
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return (c >= 0x41 && c <= 0x5A) || (c >= 0x61 && c <= 0x7A); |
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} |
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function isASCIIAlphanumeric(c) { |
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return isASCIIAlpha(c) || isASCIIDigit(c); |
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} |
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function isASCIIHex(c) { |
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return isASCIIDigit(c) || (c >= 0x41 && c <= 0x46) || (c >= 0x61 && c <= 0x66); |
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} |
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module.exports = { |
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isASCIIDigit, |
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isASCIIAlpha, |
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isASCIIAlphanumeric, |
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isASCIIHex |
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};
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