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encoding.utf8: add is_number (#15931)

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ChAoS_UnItY
2022-10-01 16:01:51 +08:00
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parent 3d2588f101
commit fe597b7172
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8
vlib/encoding/utf8/utf8_util.v
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@ -178,6 +178,14 @@ pub fn is_space(r rune) bool {
return is_excluding_latin(white_space_table, r)
}
// is_number returns true if the rune is unicode number or in unicode category N
pub fn is_number(r rune) bool {
if r <= max_latin_1 {
return props[u8(r)] & p_n != 0
}
return is_excluding_latin(number_table, r)
}
// is_uchar_punct return true if the input unicode is a western unicode punctuation
pub fn is_uchar_punct(uchar int) bool {
return find_punct_in_table(uchar, utf8.unicode_punct_western) != 0