Thanos did someting

[bytom/vapor.git] / vendor / golang.org / x / text / cases / info.go

diff --git a/vendor/golang.org/x/text/cases/info.go b/vendor/golang.org/x/text/cases/info.go
deleted file mode 100644 (file)
index 3b51f03..0000000
--- a/vendor/golang.org/x/text/cases/info.go
+++ /dev/null
@@ -1,82 +0,0 @@
-// 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 cases
-
-func (c info) cccVal() info {
-       if c&exceptionBit != 0 {
-               return info(exceptions[c>>exceptionShift]) & cccMask
-       }
-       return c & cccMask
-}
-
-func (c info) cccType() info {
-       ccc := c.cccVal()
-       if ccc <= cccZero {
-               return cccZero
-       }
-       return ccc
-}
-
-// TODO: Implement full Unicode breaking algorithm:
-// 1) Implement breaking in separate package.
-// 2) Use the breaker here.
-// 3) Compare table size and performance of using the more generic breaker.
-//
-// Note that we can extend the current algorithm to be much more accurate. This
-// only makes sense, though, if the performance and/or space penalty of using
-// the generic breaker is big. Extra data will only be needed for non-cased
-// runes, which means there are sufficient bits left in the caseType.
-// ICU prohibits breaking in such cases as well.
-
-// For the purpose of title casing we use an approximation of the Unicode Word
-// Breaking algorithm defined in Annex #29:
-// http://www.unicode.org/reports/tr29/#Default_Grapheme_Cluster_Table.
-//
-// For our approximation, we group the Word Break types into the following
-// categories, with associated rules:
-//
-// 1) Letter:
-//    ALetter, Hebrew_Letter, Numeric, ExtendNumLet, Extend, Format_FE, ZWJ.
-//    Rule: Never break between consecutive runes of this category.
-//
-// 2) Mid:
-//    MidLetter, MidNumLet, Single_Quote.
-//    (Cf. case-ignorable: MidLetter, MidNumLet, Single_Quote or cat is Mn,
-//    Me, Cf, Lm or Sk).
-//    Rule: Don't break between Letter and Mid, but break between two Mids.
-//
-// 3) Break:
-//    Any other category: NewLine, MidNum, CR, LF, Double_Quote, Katakana, and
-//    Other.
-//    These categories should always result in a break between two cased letters.
-//    Rule: Always break.
-//
-// Note 1: the Katakana and MidNum categories can, in esoteric cases, result in
-// preventing a break between two cased letters. For now we will ignore this
-// (e.g. [ALetter] [ExtendNumLet] [Katakana] [ExtendNumLet] [ALetter] and
-// [ALetter] [Numeric] [MidNum] [Numeric] [ALetter].)
-//
-// Note 2: the rule for Mid is very approximate, but works in most cases. To
-// improve, we could store the categories in the trie value and use a FA to
-// manage breaks. See TODO comment above.
-//
-// Note 3: according to the spec, it is possible for the Extend category to
-// introduce breaks between other categories grouped in Letter. However, this
-// is undesirable for our purposes. ICU prevents breaks in such cases as well.
-
-// isBreak returns whether this rune should introduce a break.
-func (c info) isBreak() bool {
-       return c.cccVal() == cccBreak
-}
-
-// isLetter returns whether the rune is of break type ALetter, Hebrew_Letter,
-// Numeric, ExtendNumLet, or Extend.
-func (c info) isLetter() bool {
-       ccc := c.cccVal()
-       if ccc == cccZero {
-               return !c.isCaseIgnorable()
-       }
-       return ccc != cccBreak
-}