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| author | 2024-01-17 14:54:30 +0000 | |
|---|---|---|
| committer | 2024-01-17 14:54:30 +0000 | |
| commit | 906639ad7eb92e9d631599f78979908930e59c84 (patch) | |
| tree | dfef6d0a5ba47c49c214e4537a89dee6ad528df8 /vendor/golang.org/x/text/internal | |
| parent | [bugfix] Better Postgres search case insensitivity (#2526) (diff) | |
| download | gotosocial-906639ad7eb92e9d631599f78979908930e59c84.tar.xz | |
[chore] update viper version (#2539)
* update viper version
* removes our last uses of the slice package
* fix tests
Diffstat (limited to 'vendor/golang.org/x/text/internal')
| -rw-r--r-- | vendor/golang.org/x/text/internal/utf8internal/utf8internal.go | 87 | 
1 files changed, 87 insertions, 0 deletions
| diff --git a/vendor/golang.org/x/text/internal/utf8internal/utf8internal.go b/vendor/golang.org/x/text/internal/utf8internal/utf8internal.go new file mode 100644 index 000000000..e5c53b1b3 --- /dev/null +++ b/vendor/golang.org/x/text/internal/utf8internal/utf8internal.go @@ -0,0 +1,87 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package utf8internal contains low-level utf8-related constants, tables, etc. +// that are used internally by the text package. +package utf8internal + +// The default lowest and highest continuation byte. +const ( +	LoCB = 0x80 // 1000 0000 +	HiCB = 0xBF // 1011 1111 +) + +// Constants related to getting information of first bytes of UTF-8 sequences. +const ( +	// ASCII identifies a UTF-8 byte as ASCII. +	ASCII = as + +	// FirstInvalid indicates a byte is invalid as a first byte of a UTF-8 +	// sequence. +	FirstInvalid = xx + +	// SizeMask is a mask for the size bits. Use use x&SizeMask to get the size. +	SizeMask = 7 + +	// AcceptShift is the right-shift count for the first byte info byte to get +	// the index into the AcceptRanges table. See AcceptRanges. +	AcceptShift = 4 + +	// The names of these constants are chosen to give nice alignment in the +	// table below. The first nibble is an index into acceptRanges or F for +	// special one-byte cases. The second nibble is the Rune length or the +	// Status for the special one-byte case. +	xx = 0xF1 // invalid: size 1 +	as = 0xF0 // ASCII: size 1 +	s1 = 0x02 // accept 0, size 2 +	s2 = 0x13 // accept 1, size 3 +	s3 = 0x03 // accept 0, size 3 +	s4 = 0x23 // accept 2, size 3 +	s5 = 0x34 // accept 3, size 4 +	s6 = 0x04 // accept 0, size 4 +	s7 = 0x44 // accept 4, size 4 +) + +// First is information about the first byte in a UTF-8 sequence. +var First = [256]uint8{ +	//   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F +	as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, // 0x00-0x0F +	as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, // 0x10-0x1F +	as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, // 0x20-0x2F +	as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, // 0x30-0x3F +	as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, // 0x40-0x4F +	as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, // 0x50-0x5F +	as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, // 0x60-0x6F +	as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, // 0x70-0x7F +	//   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F +	xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, // 0x80-0x8F +	xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, // 0x90-0x9F +	xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, // 0xA0-0xAF +	xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, // 0xB0-0xBF +	xx, xx, s1, s1, s1, s1, s1, s1, s1, s1, s1, s1, s1, s1, s1, s1, // 0xC0-0xCF +	s1, s1, s1, s1, s1, s1, s1, s1, s1, s1, s1, s1, s1, s1, s1, s1, // 0xD0-0xDF +	s2, s3, s3, s3, s3, s3, s3, s3, s3, s3, s3, s3, s3, s4, s3, s3, // 0xE0-0xEF +	s5, s6, s6, s6, s7, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, // 0xF0-0xFF +} + +// AcceptRange gives the range of valid values for the second byte in a UTF-8 +// sequence for any value for First that is not ASCII or FirstInvalid. +type AcceptRange struct { +	Lo uint8 // lowest value for second byte. +	Hi uint8 // highest value for second byte. +} + +// AcceptRanges is a slice of AcceptRange values. For a given byte sequence b +// +//	AcceptRanges[First[b[0]]>>AcceptShift] +// +// will give the value of AcceptRange for the multi-byte UTF-8 sequence starting +// at b[0]. +var AcceptRanges = [...]AcceptRange{ +	0: {LoCB, HiCB}, +	1: {0xA0, HiCB}, +	2: {LoCB, 0x9F}, +	3: {0x90, HiCB}, +	4: {LoCB, 0x8F}, +} | 
