From 4d11ca17d0f73f5bd783f45900118295fdfed46b Mon Sep 17 00:00:00 2001 From: Tomofumi Hayashi Date: Sat, 27 Apr 2019 20:38:39 +0900 Subject: barometer: update DMA's vendoring packages Change-Id: I0578b094f1ecdaed20c906be2ba29d51b8089d7c Signed-off-by: Tomofumi Hayashi --- src/dma/vendor/golang.org/x/net/idna/trieval.go | 119 ++++++++++++++++++++++++ 1 file changed, 119 insertions(+) create mode 100644 src/dma/vendor/golang.org/x/net/idna/trieval.go (limited to 'src/dma/vendor/golang.org/x/net/idna/trieval.go') diff --git a/src/dma/vendor/golang.org/x/net/idna/trieval.go b/src/dma/vendor/golang.org/x/net/idna/trieval.go new file mode 100644 index 00000000..7a8cf889 --- /dev/null +++ b/src/dma/vendor/golang.org/x/net/idna/trieval.go @@ -0,0 +1,119 @@ +// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT. + +package idna + +// This file contains definitions for interpreting the trie value of the idna +// trie generated by "go run gen*.go". It is shared by both the generator +// program and the resultant package. Sharing is achieved by the generator +// copying gen_trieval.go to trieval.go and changing what's above this comment. + +// info holds information from the IDNA mapping table for a single rune. It is +// the value returned by a trie lookup. In most cases, all information fits in +// a 16-bit value. For mappings, this value may contain an index into a slice +// with the mapped string. Such mappings can consist of the actual mapped value +// or an XOR pattern to be applied to the bytes of the UTF8 encoding of the +// input rune. This technique is used by the cases packages and reduces the +// table size significantly. +// +// The per-rune values have the following format: +// +// if mapped { +// if inlinedXOR { +// 15..13 inline XOR marker +// 12..11 unused +// 10..3 inline XOR mask +// } else { +// 15..3 index into xor or mapping table +// } +// } else { +// 15..14 unused +// 13 mayNeedNorm +// 12..11 attributes +// 10..8 joining type +// 7..3 category type +// } +// 2 use xor pattern +// 1..0 mapped category +// +// See the definitions below for a more detailed description of the various +// bits. +type info uint16 + +const ( + catSmallMask = 0x3 + catBigMask = 0xF8 + indexShift = 3 + xorBit = 0x4 // interpret the index as an xor pattern + inlineXOR = 0xE000 // These bits are set if the XOR pattern is inlined. + + joinShift = 8 + joinMask = 0x07 + + // Attributes + attributesMask = 0x1800 + viramaModifier = 0x1800 + modifier = 0x1000 + rtl = 0x0800 + + mayNeedNorm = 0x2000 +) + +// A category corresponds to a category defined in the IDNA mapping table. +type category uint16 + +const ( + unknown category = 0 // not currently defined in unicode. + mapped category = 1 + disallowedSTD3Mapped category = 2 + deviation category = 3 +) + +const ( + valid category = 0x08 + validNV8 category = 0x18 + validXV8 category = 0x28 + disallowed category = 0x40 + disallowedSTD3Valid category = 0x80 + ignored category = 0xC0 +) + +// join types and additional rune information +const ( + joiningL = (iota + 1) + joiningD + joiningT + joiningR + + //the following types are derived during processing + joinZWJ + joinZWNJ + joinVirama + numJoinTypes +) + +func (c info) isMapped() bool { + return c&0x3 != 0 +} + +func (c info) category() category { + small := c & catSmallMask + if small != 0 { + return category(small) + } + return category(c & catBigMask) +} + +func (c info) joinType() info { + if c.isMapped() { + return 0 + } + return (c >> joinShift) & joinMask +} + +func (c info) isModifier() bool { + return c&(modifier|catSmallMask) == modifier +} + +func (c info) isViramaModifier() bool { + return c&(attributesMask|catSmallMask) == viramaModifier +} -- cgit 1.2.3-korg