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-rw-r--r--vendor/golang.org/x/text/encoding/simplifiedchinese/hzgb2312.go2
-rw-r--r--vendor/golang.org/x/text/internal/language/language.go90
-rw-r--r--vendor/golang.org/x/text/internal/language/parse.go37
-rw-r--r--vendor/golang.org/x/text/language/go1_1.go1
-rw-r--r--vendor/golang.org/x/text/language/go1_2.go1
-rw-r--r--vendor/golang.org/x/text/language/language.go4
-rw-r--r--vendor/golang.org/x/text/language/tables.go8
-rw-r--r--vendor/golang.org/x/text/secure/bidirule/bidirule10.0.0.go1
-rw-r--r--vendor/golang.org/x/text/secure/bidirule/bidirule9.0.0.go1
-rw-r--r--vendor/golang.org/x/text/unicode/bidi/bidi.go221
-rw-r--r--vendor/golang.org/x/text/unicode/bidi/core.go63
-rw-r--r--vendor/golang.org/x/text/unicode/bidi/tables10.0.0.go1
-rw-r--r--vendor/golang.org/x/text/unicode/bidi/tables11.0.0.go1
-rw-r--r--vendor/golang.org/x/text/unicode/bidi/tables12.0.0.go1
-rw-r--r--vendor/golang.org/x/text/unicode/bidi/tables13.0.0.go1
-rw-r--r--vendor/golang.org/x/text/unicode/bidi/tables9.0.0.go1
-rw-r--r--vendor/golang.org/x/text/unicode/norm/tables10.0.0.go1
-rw-r--r--vendor/golang.org/x/text/unicode/norm/tables11.0.0.go1
-rw-r--r--vendor/golang.org/x/text/unicode/norm/tables12.0.0.go1
-rw-r--r--vendor/golang.org/x/text/unicode/norm/tables13.0.0.go1
-rw-r--r--vendor/golang.org/x/text/unicode/norm/tables9.0.0.go1
21 files changed, 315 insertions, 124 deletions
diff --git a/vendor/golang.org/x/text/encoding/simplifiedchinese/hzgb2312.go b/vendor/golang.org/x/text/encoding/simplifiedchinese/hzgb2312.go
index eb3157f0b..e15b7bf6a 100644
--- a/vendor/golang.org/x/text/encoding/simplifiedchinese/hzgb2312.go
+++ b/vendor/golang.org/x/text/encoding/simplifiedchinese/hzgb2312.go
@@ -57,7 +57,7 @@ loop:
err = transform.ErrShortSrc
break loop
}
- r = utf8.RuneError
+ r, size = utf8.RuneError, 1
goto write
}
size = 2
diff --git a/vendor/golang.org/x/text/internal/language/language.go b/vendor/golang.org/x/text/internal/language/language.go
index 1e74d1aff..f41aedcfc 100644
--- a/vendor/golang.org/x/text/internal/language/language.go
+++ b/vendor/golang.org/x/text/internal/language/language.go
@@ -303,9 +303,17 @@ func (t Tag) Extensions() []string {
// are of the allowed values defined for the Unicode locale extension ('u') in
// https://www.unicode.org/reports/tr35/#Unicode_Language_and_Locale_Identifiers.
// TypeForKey will traverse the inheritance chain to get the correct value.
+//
+// If there are multiple types associated with a key, only the first will be
+// returned. If there is no type associated with a key, it returns the empty
+// string.
func (t Tag) TypeForKey(key string) string {
- if start, end, _ := t.findTypeForKey(key); end != start {
- return t.str[start:end]
+ if _, start, end, _ := t.findTypeForKey(key); end != start {
+ s := t.str[start:end]
+ if p := strings.IndexByte(s, '-'); p >= 0 {
+ s = s[:p]
+ }
+ return s
}
return ""
}
@@ -329,13 +337,13 @@ func (t Tag) SetTypeForKey(key, value string) (Tag, error) {
// Remove the setting if value is "".
if value == "" {
- start, end, _ := t.findTypeForKey(key)
- if start != end {
- // Remove key tag and leading '-'.
- start -= 4
-
+ start, sep, end, _ := t.findTypeForKey(key)
+ if start != sep {
// Remove a possible empty extension.
- if (end == len(t.str) || t.str[end+2] == '-') && t.str[start-2] == '-' {
+ switch {
+ case t.str[start-2] != '-': // has previous elements.
+ case end == len(t.str), // end of string
+ end+2 < len(t.str) && t.str[end+2] == '-': // end of extension
start -= 2
}
if start == int(t.pVariant) && end == len(t.str) {
@@ -381,14 +389,14 @@ func (t Tag) SetTypeForKey(key, value string) (Tag, error) {
t.str = string(buf[:uStart+len(b)])
} else {
s := t.str
- start, end, hasExt := t.findTypeForKey(key)
- if start == end {
+ start, sep, end, hasExt := t.findTypeForKey(key)
+ if start == sep {
if hasExt {
b = b[2:]
}
- t.str = fmt.Sprintf("%s-%s%s", s[:start], b, s[end:])
+ t.str = fmt.Sprintf("%s-%s%s", s[:sep], b, s[end:])
} else {
- t.str = fmt.Sprintf("%s%s%s", s[:start], value, s[end:])
+ t.str = fmt.Sprintf("%s-%s%s", s[:start+3], value, s[end:])
}
}
return t, nil
@@ -399,10 +407,10 @@ func (t Tag) SetTypeForKey(key, value string) (Tag, error) {
// wasn't found. The hasExt return value reports whether an -u extension was present.
// Note: the extensions are typically very small and are likely to contain
// only one key-type pair.
-func (t Tag) findTypeForKey(key string) (start, end int, hasExt bool) {
+func (t Tag) findTypeForKey(key string) (start, sep, end int, hasExt bool) {
p := int(t.pExt)
if len(key) != 2 || p == len(t.str) || p == 0 {
- return p, p, false
+ return p, p, p, false
}
s := t.str
@@ -410,10 +418,10 @@ func (t Tag) findTypeForKey(key string) (start, end int, hasExt bool) {
for p++; s[p] != 'u'; p++ {
if s[p] > 'u' {
p--
- return p, p, false
+ return p, p, p, false
}
if p = nextExtension(s, p); p == len(s) {
- return len(s), len(s), false
+ return len(s), len(s), len(s), false
}
}
// Proceed to the hyphen following the extension name.
@@ -424,40 +432,28 @@ func (t Tag) findTypeForKey(key string) (start, end int, hasExt bool) {
// Iterate over keys until we get the end of a section.
for {
- // p points to the hyphen preceding the current token.
- if p3 := p + 3; s[p3] == '-' {
- // Found a key.
- // Check whether we just processed the key that was requested.
- if curKey == key {
- return start, p, true
- }
- // Set to the next key and continue scanning type tokens.
- curKey = s[p+1 : p3]
- if curKey > key {
- return p, p, true
- }
- // Start of the type token sequence.
- start = p + 4
- // A type is at least 3 characters long.
- p += 7 // 4 + 3
- } else {
- // Attribute or type, which is at least 3 characters long.
- p += 4
- }
- // p points past the third character of a type or attribute.
- max := p + 5 // maximum length of token plus hyphen.
- if len(s) < max {
- max = len(s)
+ end = p
+ for p++; p < len(s) && s[p] != '-'; p++ {
}
- for ; p < max && s[p] != '-'; p++ {
+ n := p - end - 1
+ if n <= 2 && curKey == key {
+ if sep < end {
+ sep++
+ }
+ return start, sep, end, true
}
- // Bail if we have exhausted all tokens or if the next token starts
- // a new extension.
- if p == len(s) || s[p+2] == '-' {
- if curKey == key {
- return start, p, true
+ switch n {
+ case 0, // invalid string
+ 1: // next extension
+ return end, end, end, true
+ case 2:
+ // next key
+ curKey = s[end+1 : p]
+ if curKey > key {
+ return end, end, end, true
}
- return p, p, true
+ start = end
+ sep = p
}
}
}
diff --git a/vendor/golang.org/x/text/internal/language/parse.go b/vendor/golang.org/x/text/internal/language/parse.go
index 2be83e1da..c696fd0bd 100644
--- a/vendor/golang.org/x/text/internal/language/parse.go
+++ b/vendor/golang.org/x/text/internal/language/parse.go
@@ -133,14 +133,15 @@ func (s *scanner) resizeRange(oldStart, oldEnd, newSize int) {
s.start = oldStart
if end := oldStart + newSize; end != oldEnd {
diff := end - oldEnd
- if end < cap(s.b) {
- b := make([]byte, len(s.b)+diff)
+ var b []byte
+ if n := len(s.b) + diff; n > cap(s.b) {
+ b = make([]byte, n)
copy(b, s.b[:oldStart])
- copy(b[end:], s.b[oldEnd:])
- s.b = b
} else {
- s.b = append(s.b[end:], s.b[oldEnd:]...)
+ b = s.b[:n]
}
+ copy(b[end:], s.b[oldEnd:])
+ s.b = b
s.next = end + (s.next - s.end)
s.end = end
}
@@ -482,7 +483,7 @@ func parseExtensions(scan *scanner) int {
func parseExtension(scan *scanner) int {
start, end := scan.start, scan.end
switch scan.token[0] {
- case 'u':
+ case 'u': // https://www.ietf.org/rfc/rfc6067.txt
attrStart := end
scan.scan()
for last := []byte{}; len(scan.token) > 2; scan.scan() {
@@ -502,27 +503,29 @@ func parseExtension(scan *scanner) int {
last = scan.token
end = scan.end
}
+ // Scan key-type sequences. A key is of length 2 and may be followed
+ // by 0 or more "type" subtags from 3 to the maximum of 8 letters.
var last, key []byte
for attrEnd := end; len(scan.token) == 2; last = key {
key = scan.token
- keyEnd := scan.end
- end = scan.acceptMinSize(3)
+ end = scan.end
+ for scan.scan(); end < scan.end && len(scan.token) > 2; scan.scan() {
+ end = scan.end
+ }
// TODO: check key value validity
- if keyEnd == end || bytes.Compare(key, last) != 1 {
+ if bytes.Compare(key, last) != 1 || scan.err != nil {
// We have an invalid key or the keys are not sorted.
// Start scanning keys from scratch and reorder.
p := attrEnd + 1
scan.next = p
keys := [][]byte{}
for scan.scan(); len(scan.token) == 2; {
- keyStart, keyEnd := scan.start, scan.end
- end = scan.acceptMinSize(3)
- if keyEnd != end {
- keys = append(keys, scan.b[keyStart:end])
- } else {
- scan.setError(ErrSyntax)
- end = keyStart
+ keyStart := scan.start
+ end = scan.end
+ for scan.scan(); end < scan.end && len(scan.token) > 2; scan.scan() {
+ end = scan.end
}
+ keys = append(keys, scan.b[keyStart:end])
}
sort.Stable(bytesSort{keys, 2})
if n := len(keys); n > 0 {
@@ -546,7 +549,7 @@ func parseExtension(scan *scanner) int {
break
}
}
- case 't':
+ case 't': // https://www.ietf.org/rfc/rfc6497.txt
scan.scan()
if n := len(scan.token); n >= 2 && n <= 3 && isAlpha(scan.token[1]) {
_, end = parseTag(scan)
diff --git a/vendor/golang.org/x/text/language/go1_1.go b/vendor/golang.org/x/text/language/go1_1.go
index 380f4c09f..c7435583b 100644
--- a/vendor/golang.org/x/text/language/go1_1.go
+++ b/vendor/golang.org/x/text/language/go1_1.go
@@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
+//go:build !go1.2
// +build !go1.2
package language
diff --git a/vendor/golang.org/x/text/language/go1_2.go b/vendor/golang.org/x/text/language/go1_2.go
index 38268c57a..77aaaa299 100644
--- a/vendor/golang.org/x/text/language/go1_2.go
+++ b/vendor/golang.org/x/text/language/go1_2.go
@@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
+//go:build go1.2
// +build go1.2
package language
diff --git a/vendor/golang.org/x/text/language/language.go b/vendor/golang.org/x/text/language/language.go
index abfa17f66..289b3a36d 100644
--- a/vendor/golang.org/x/text/language/language.go
+++ b/vendor/golang.org/x/text/language/language.go
@@ -412,6 +412,10 @@ func (t Tag) Extensions() []Extension {
// are of the allowed values defined for the Unicode locale extension ('u') in
// https://www.unicode.org/reports/tr35/#Unicode_Language_and_Locale_Identifiers.
// TypeForKey will traverse the inheritance chain to get the correct value.
+//
+// If there are multiple types associated with a key, only the first will be
+// returned. If there is no type associated with a key, it returns the empty
+// string.
func (t Tag) TypeForKey(key string) string {
if !compact.Tag(t).MayHaveExtensions() {
if key != "rg" && key != "va" {
diff --git a/vendor/golang.org/x/text/language/tables.go b/vendor/golang.org/x/text/language/tables.go
index 87e58a02a..96b57f610 100644
--- a/vendor/golang.org/x/text/language/tables.go
+++ b/vendor/golang.org/x/text/language/tables.go
@@ -47,7 +47,7 @@ const (
_Zzzz = 251
)
-var regionToGroups = []uint8{ // 357 elements
+var regionToGroups = []uint8{ // 358 elements
// Entry 0 - 3F
0x00, 0x00, 0x00, 0x04, 0x04, 0x00, 0x00, 0x04,
0x00, 0x00, 0x00, 0x00, 0x04, 0x04, 0x04, 0x00,
@@ -98,8 +98,8 @@ var regionToGroups = []uint8{ // 357 elements
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00,
-} // Size: 381 bytes
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+} // Size: 382 bytes
var paradigmLocales = [][3]uint16{ // 3 elements
0: [3]uint16{0x139, 0x0, 0x7b},
@@ -295,4 +295,4 @@ var matchRegion = []regionIntelligibility{ // 15 elements
14: {lang: 0x529, script: 0x3c, group: 0x80, distance: 0x5},
} // Size: 114 bytes
-// Total table size 1471 bytes (1KiB); checksum: 4CB1CD46
+// Total table size 1472 bytes (1KiB); checksum: F86C669
diff --git a/vendor/golang.org/x/text/secure/bidirule/bidirule10.0.0.go b/vendor/golang.org/x/text/secure/bidirule/bidirule10.0.0.go
index e4c62289f..8a7392c4a 100644
--- a/vendor/golang.org/x/text/secure/bidirule/bidirule10.0.0.go
+++ b/vendor/golang.org/x/text/secure/bidirule/bidirule10.0.0.go
@@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
+//go:build go1.10
// +build go1.10
package bidirule
diff --git a/vendor/golang.org/x/text/secure/bidirule/bidirule9.0.0.go b/vendor/golang.org/x/text/secure/bidirule/bidirule9.0.0.go
index 02b9e1e9d..bb0a92001 100644
--- a/vendor/golang.org/x/text/secure/bidirule/bidirule9.0.0.go
+++ b/vendor/golang.org/x/text/secure/bidirule/bidirule9.0.0.go
@@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
+//go:build !go1.10
// +build !go1.10
package bidirule
diff --git a/vendor/golang.org/x/text/unicode/bidi/bidi.go b/vendor/golang.org/x/text/unicode/bidi/bidi.go
index e8edc54cc..fd057601b 100644
--- a/vendor/golang.org/x/text/unicode/bidi/bidi.go
+++ b/vendor/golang.org/x/text/unicode/bidi/bidi.go
@@ -12,15 +12,14 @@
// and without notice.
package bidi // import "golang.org/x/text/unicode/bidi"
-// TODO:
-// The following functionality would not be hard to implement, but hinges on
-// the definition of a Segmenter interface. For now this is up to the user.
-// - Iterate over paragraphs
-// - Segmenter to iterate over runs directly from a given text.
-// Also:
+// TODO
// - Transformer for reordering?
// - Transformer (validator, really) for Bidi Rule.
+import (
+ "bytes"
+)
+
// This API tries to avoid dealing with embedding levels for now. Under the hood
// these will be computed, but the question is to which extent the user should
// know they exist. We should at some point allow the user to specify an
@@ -49,7 +48,9 @@ const (
Neutral
)
-type options struct{}
+type options struct {
+ defaultDirection Direction
+}
// An Option is an option for Bidi processing.
type Option func(*options)
@@ -66,12 +67,62 @@ type Option func(*options)
// DefaultDirection sets the default direction for a Paragraph. The direction is
// overridden if the text contains directional characters.
func DefaultDirection(d Direction) Option {
- panic("unimplemented")
+ return func(opts *options) {
+ opts.defaultDirection = d
+ }
}
// A Paragraph holds a single Paragraph for Bidi processing.
type Paragraph struct {
- // buffers
+ p []byte
+ o Ordering
+ opts []Option
+ types []Class
+ pairTypes []bracketType
+ pairValues []rune
+ runes []rune
+ options options
+}
+
+// Initialize the p.pairTypes, p.pairValues and p.types from the input previously
+// set by p.SetBytes() or p.SetString(). Also limit the input up to (and including) a paragraph
+// separator (bidi class B).
+//
+// The function p.Order() needs these values to be set, so this preparation could be postponed.
+// But since the SetBytes and SetStrings functions return the length of the input up to the paragraph
+// separator, the whole input needs to be processed anyway and should not be done twice.
+//
+// The function has the same return values as SetBytes() / SetString()
+func (p *Paragraph) prepareInput() (n int, err error) {
+ p.runes = bytes.Runes(p.p)
+ bytecount := 0
+ // clear slices from previous SetString or SetBytes
+ p.pairTypes = nil
+ p.pairValues = nil
+ p.types = nil
+
+ for _, r := range p.runes {
+ props, i := LookupRune(r)
+ bytecount += i
+ cls := props.Class()
+ if cls == B {
+ return bytecount, nil
+ }
+ p.types = append(p.types, cls)
+ if props.IsOpeningBracket() {
+ p.pairTypes = append(p.pairTypes, bpOpen)
+ p.pairValues = append(p.pairValues, r)
+ } else if props.IsBracket() {
+ // this must be a closing bracket,
+ // since IsOpeningBracket is not true
+ p.pairTypes = append(p.pairTypes, bpClose)
+ p.pairValues = append(p.pairValues, r)
+ } else {
+ p.pairTypes = append(p.pairTypes, bpNone)
+ p.pairValues = append(p.pairValues, 0)
+ }
+ }
+ return bytecount, nil
}
// SetBytes configures p for the given paragraph text. It replaces text
@@ -80,70 +131,150 @@ type Paragraph struct {
// consumed from b including this separator. Error may be non-nil if options are
// given.
func (p *Paragraph) SetBytes(b []byte, opts ...Option) (n int, err error) {
- panic("unimplemented")
+ p.p = b
+ p.opts = opts
+ return p.prepareInput()
}
-// SetString configures p for the given paragraph text. It replaces text
-// previously set by SetBytes or SetString. If b contains a paragraph separator
+// SetString configures s for the given paragraph text. It replaces text
+// previously set by SetBytes or SetString. If s contains a paragraph separator
// it will only process the first paragraph and report the number of bytes
-// consumed from b including this separator. Error may be non-nil if options are
+// consumed from s including this separator. Error may be non-nil if options are
// given.
func (p *Paragraph) SetString(s string, opts ...Option) (n int, err error) {
- panic("unimplemented")
+ p.p = []byte(s)
+ p.opts = opts
+ return p.prepareInput()
}
// IsLeftToRight reports whether the principle direction of rendering for this
// paragraphs is left-to-right. If this returns false, the principle direction
// of rendering is right-to-left.
func (p *Paragraph) IsLeftToRight() bool {
- panic("unimplemented")
+ return p.Direction() == LeftToRight
}
// Direction returns the direction of the text of this paragraph.
//
// The direction may be LeftToRight, RightToLeft, Mixed, or Neutral.
func (p *Paragraph) Direction() Direction {
- panic("unimplemented")
+ return p.o.Direction()
}
+// TODO: what happens if the position is > len(input)? This should return an error.
+
// RunAt reports the Run at the given position of the input text.
//
// This method can be used for computing line breaks on paragraphs.
func (p *Paragraph) RunAt(pos int) Run {
- panic("unimplemented")
+ c := 0
+ runNumber := 0
+ for i, r := range p.o.runes {
+ c += len(r)
+ if pos < c {
+ runNumber = i
+ }
+ }
+ return p.o.Run(runNumber)
+}
+
+func calculateOrdering(levels []level, runes []rune) Ordering {
+ var curDir Direction
+
+ prevDir := Neutral
+ prevI := 0
+
+ o := Ordering{}
+ // lvl = 0,2,4,...: left to right
+ // lvl = 1,3,5,...: right to left
+ for i, lvl := range levels {
+ if lvl%2 == 0 {
+ curDir = LeftToRight
+ } else {
+ curDir = RightToLeft
+ }
+ if curDir != prevDir {
+ if i > 0 {
+ o.runes = append(o.runes, runes[prevI:i])
+ o.directions = append(o.directions, prevDir)
+ o.startpos = append(o.startpos, prevI)
+ }
+ prevI = i
+ prevDir = curDir
+ }
+ }
+ o.runes = append(o.runes, runes[prevI:])
+ o.directions = append(o.directions, prevDir)
+ o.startpos = append(o.startpos, prevI)
+ return o
}
// Order computes the visual ordering of all the runs in a Paragraph.
func (p *Paragraph) Order() (Ordering, error) {
- panic("unimplemented")
+ if len(p.types) == 0 {
+ return Ordering{}, nil
+ }
+
+ for _, fn := range p.opts {
+ fn(&p.options)
+ }
+ lvl := level(-1)
+ if p.options.defaultDirection == RightToLeft {
+ lvl = 1
+ }
+ para, err := newParagraph(p.types, p.pairTypes, p.pairValues, lvl)
+ if err != nil {
+ return Ordering{}, err
+ }
+
+ levels := para.getLevels([]int{len(p.types)})
+
+ p.o = calculateOrdering(levels, p.runes)
+ return p.o, nil
}
// Line computes the visual ordering of runs for a single line starting and
// ending at the given positions in the original text.
func (p *Paragraph) Line(start, end int) (Ordering, error) {
- panic("unimplemented")
+ lineTypes := p.types[start:end]
+ para, err := newParagraph(lineTypes, p.pairTypes[start:end], p.pairValues[start:end], -1)
+ if err != nil {
+ return Ordering{}, err
+ }
+ levels := para.getLevels([]int{len(lineTypes)})
+ o := calculateOrdering(levels, p.runes[start:end])
+ return o, nil
}
// An Ordering holds the computed visual order of runs of a Paragraph. Calling
// SetBytes or SetString on the originating Paragraph invalidates an Ordering.
// The methods of an Ordering should only be called by one goroutine at a time.
-type Ordering struct{}
+type Ordering struct {
+ runes [][]rune
+ directions []Direction
+ startpos []int
+}
// Direction reports the directionality of the runs.
//
// The direction may be LeftToRight, RightToLeft, Mixed, or Neutral.
func (o *Ordering) Direction() Direction {
- panic("unimplemented")
+ return o.directions[0]
}
// NumRuns returns the number of runs.
func (o *Ordering) NumRuns() int {
- panic("unimplemented")
+ return len(o.runes)
}
// Run returns the ith run within the ordering.
func (o *Ordering) Run(i int) Run {
- panic("unimplemented")
+ r := Run{
+ runes: o.runes[i],
+ direction: o.directions[i],
+ startpos: o.startpos[i],
+ }
+ return r
}
// TODO: perhaps with options.
@@ -155,16 +286,19 @@ func (o *Ordering) Run(i int) Run {
// A Run is a continuous sequence of characters of a single direction.
type Run struct {
+ runes []rune
+ direction Direction
+ startpos int
}
// String returns the text of the run in its original order.
func (r *Run) String() string {
- panic("unimplemented")
+ return string(r.runes)
}
// Bytes returns the text of the run in its original order.
func (r *Run) Bytes() []byte {
- panic("unimplemented")
+ return []byte(r.String())
}
// TODO: methods for
@@ -174,25 +308,52 @@ func (r *Run) Bytes() []byte {
// Direction reports the direction of the run.
func (r *Run) Direction() Direction {
- panic("unimplemented")
+ return r.direction
}
-// Position of the Run within the text passed to SetBytes or SetString of the
+// Pos returns the position of the Run within the text passed to SetBytes or SetString of the
// originating Paragraph value.
func (r *Run) Pos() (start, end int) {
- panic("unimplemented")
+ return r.startpos, r.startpos + len(r.runes) - 1
}
// AppendReverse reverses the order of characters of in, appends them to out,
// and returns the result. Modifiers will still follow the runes they modify.
// Brackets are replaced with their counterparts.
func AppendReverse(out, in []byte) []byte {
- panic("unimplemented")
+ ret := make([]byte, len(in)+len(out))
+ copy(ret, out)
+ inRunes := bytes.Runes(in)
+
+ for i, r := range inRunes {
+ prop, _ := LookupRune(r)
+ if prop.IsBracket() {
+ inRunes[i] = prop.reverseBracket(r)
+ }
+ }
+
+ for i, j := 0, len(inRunes)-1; i < j; i, j = i+1, j-1 {
+ inRunes[i], inRunes[j] = inRunes[j], inRunes[i]
+ }
+ copy(ret[len(out):], string(inRunes))
+
+ return ret
}
// ReverseString reverses the order of characters in s and returns a new string.
// Modifiers will still follow the runes they modify. Brackets are replaced with
// their counterparts.
func ReverseString(s string) string {
- panic("unimplemented")
+ input := []rune(s)
+ li := len(input)
+ ret := make([]rune, li)
+ for i, r := range input {
+ prop, _ := LookupRune(r)
+ if prop.IsBracket() {
+ ret[li-i-1] = prop.reverseBracket(r)
+ } else {
+ ret[li-i-1] = r
+ }
+ }
+ return string(ret)
}
diff --git a/vendor/golang.org/x/text/unicode/bidi/core.go b/vendor/golang.org/x/text/unicode/bidi/core.go
index 50deb6600..e4c081101 100644
--- a/vendor/golang.org/x/text/unicode/bidi/core.go
+++ b/vendor/golang.org/x/text/unicode/bidi/core.go
@@ -4,7 +4,10 @@
package bidi
-import "log"
+import (
+ "fmt"
+ "log"
+)
// This implementation is a port based on the reference implementation found at:
// https://www.unicode.org/Public/PROGRAMS/BidiReferenceJava/
@@ -97,13 +100,20 @@ type paragraph struct {
// rune (suggested is the rune of the open bracket for opening and matching
// close brackets, after normalization). The embedding levels are optional, but
// may be supplied to encode embedding levels of styled text.
-//
-// TODO: return an error.
-func newParagraph(types []Class, pairTypes []bracketType, pairValues []rune, levels level) *paragraph {
- validateTypes(types)
- validatePbTypes(pairTypes)
- validatePbValues(pairValues, pairTypes)
- validateParagraphEmbeddingLevel(levels)
+func newParagraph(types []Class, pairTypes []bracketType, pairValues []rune, levels level) (*paragraph, error) {
+ var err error
+ if err = validateTypes(types); err != nil {
+ return nil, err
+ }
+ if err = validatePbTypes(pairTypes); err != nil {
+ return nil, err
+ }
+ if err = validatePbValues(pairValues, pairTypes); err != nil {
+ return nil, err
+ }
+ if err = validateParagraphEmbeddingLevel(levels); err != nil {
+ return nil, err
+ }
p := &paragraph{
initialTypes: append([]Class(nil), types...),
@@ -115,7 +125,7 @@ func newParagraph(types []Class, pairTypes []bracketType, pairValues []rune, lev
resultTypes: append([]Class(nil), types...),
}
p.run()
- return p
+ return p, nil
}
func (p *paragraph) Len() int { return len(p.initialTypes) }
@@ -1001,58 +1011,61 @@ func typeForLevel(level level) Class {
return R
}
-// TODO: change validation to not panic
-
-func validateTypes(types []Class) {
+func validateTypes(types []Class) error {
if len(types) == 0 {
- log.Panic("types is null")
+ return fmt.Errorf("types is null")
}
for i, t := range types[:len(types)-1] {
if t == B {
- log.Panicf("B type before end of paragraph at index: %d", i)
+ return fmt.Errorf("B type before end of paragraph at index: %d", i)
}
}
+ return nil
}
-func validateParagraphEmbeddingLevel(embeddingLevel level) {
+func validateParagraphEmbeddingLevel(embeddingLevel level) error {
if embeddingLevel != implicitLevel &&
embeddingLevel != 0 &&
embeddingLevel != 1 {
- log.Panicf("illegal paragraph embedding level: %d", embeddingLevel)
+ return fmt.Errorf("illegal paragraph embedding level: %d", embeddingLevel)
}
+ return nil
}
-func validateLineBreaks(linebreaks []int, textLength int) {
+func validateLineBreaks(linebreaks []int, textLength int) error {
prev := 0
for i, next := range linebreaks {
if next <= prev {
- log.Panicf("bad linebreak: %d at index: %d", next, i)
+ return fmt.Errorf("bad linebreak: %d at index: %d", next, i)
}
prev = next
}
if prev != textLength {
- log.Panicf("last linebreak was %d, want %d", prev, textLength)
+ return fmt.Errorf("last linebreak was %d, want %d", prev, textLength)
}
+ return nil
}
-func validatePbTypes(pairTypes []bracketType) {
+func validatePbTypes(pairTypes []bracketType) error {
if len(pairTypes) == 0 {
- log.Panic("pairTypes is null")
+ return fmt.Errorf("pairTypes is null")
}
for i, pt := range pairTypes {
switch pt {
case bpNone, bpOpen, bpClose:
default:
- log.Panicf("illegal pairType value at %d: %v", i, pairTypes[i])
+ return fmt.Errorf("illegal pairType value at %d: %v", i, pairTypes[i])
}
}
+ return nil
}
-func validatePbValues(pairValues []rune, pairTypes []bracketType) {
+func validatePbValues(pairValues []rune, pairTypes []bracketType) error {
if pairValues == nil {
- log.Panic("pairValues is null")
+ return fmt.Errorf("pairValues is null")
}
if len(pairTypes) != len(pairValues) {
- log.Panic("pairTypes is different length from pairValues")
+ return fmt.Errorf("pairTypes is different length from pairValues")
}
+ return nil
}
diff --git a/vendor/golang.org/x/text/unicode/bidi/tables10.0.0.go b/vendor/golang.org/x/text/unicode/bidi/tables10.0.0.go
index d8c94e1bd..42fa8d72c 100644
--- a/vendor/golang.org/x/text/unicode/bidi/tables10.0.0.go
+++ b/vendor/golang.org/x/text/unicode/bidi/tables10.0.0.go
@@ -1,5 +1,6 @@
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
+//go:build go1.10 && !go1.13
// +build go1.10,!go1.13
package bidi
diff --git a/vendor/golang.org/x/text/unicode/bidi/tables11.0.0.go b/vendor/golang.org/x/text/unicode/bidi/tables11.0.0.go
index 16b11db53..56a0e1ea2 100644
--- a/vendor/golang.org/x/text/unicode/bidi/tables11.0.0.go
+++ b/vendor/golang.org/x/text/unicode/bidi/tables11.0.0.go
@@ -1,5 +1,6 @@
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
+//go:build go1.13 && !go1.14
// +build go1.13,!go1.14
package bidi
diff --git a/vendor/golang.org/x/text/unicode/bidi/tables12.0.0.go b/vendor/golang.org/x/text/unicode/bidi/tables12.0.0.go
index 647f2d427..baacf32b4 100644
--- a/vendor/golang.org/x/text/unicode/bidi/tables12.0.0.go
+++ b/vendor/golang.org/x/text/unicode/bidi/tables12.0.0.go
@@ -1,5 +1,6 @@
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
+//go:build go1.14 && !go1.16
// +build go1.14,!go1.16
package bidi
diff --git a/vendor/golang.org/x/text/unicode/bidi/tables13.0.0.go b/vendor/golang.org/x/text/unicode/bidi/tables13.0.0.go
index c937d0976..f248effae 100644
--- a/vendor/golang.org/x/text/unicode/bidi/tables13.0.0.go
+++ b/vendor/golang.org/x/text/unicode/bidi/tables13.0.0.go
@@ -1,5 +1,6 @@
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
+//go:build go1.16
// +build go1.16
package bidi
diff --git a/vendor/golang.org/x/text/unicode/bidi/tables9.0.0.go b/vendor/golang.org/x/text/unicode/bidi/tables9.0.0.go
index 0ca0193eb..f517fdb20 100644
--- a/vendor/golang.org/x/text/unicode/bidi/tables9.0.0.go
+++ b/vendor/golang.org/x/text/unicode/bidi/tables9.0.0.go
@@ -1,5 +1,6 @@
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
+//go:build !go1.10
// +build !go1.10
package bidi
diff --git a/vendor/golang.org/x/text/unicode/norm/tables10.0.0.go b/vendor/golang.org/x/text/unicode/norm/tables10.0.0.go
index 26fbd55a1..f5a078827 100644
--- a/vendor/golang.org/x/text/unicode/norm/tables10.0.0.go
+++ b/vendor/golang.org/x/text/unicode/norm/tables10.0.0.go
@@ -1,5 +1,6 @@
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
+//go:build go1.10 && !go1.13
// +build go1.10,!go1.13
package norm
diff --git a/vendor/golang.org/x/text/unicode/norm/tables11.0.0.go b/vendor/golang.org/x/text/unicode/norm/tables11.0.0.go
index 2c58f09ba..cb7239c43 100644
--- a/vendor/golang.org/x/text/unicode/norm/tables11.0.0.go
+++ b/vendor/golang.org/x/text/unicode/norm/tables11.0.0.go
@@ -1,5 +1,6 @@
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
+//go:build go1.13 && !go1.14
// +build go1.13,!go1.14
package norm
diff --git a/vendor/golang.org/x/text/unicode/norm/tables12.0.0.go b/vendor/golang.org/x/text/unicode/norm/tables12.0.0.go
index 7e1ae096e..11b273300 100644
--- a/vendor/golang.org/x/text/unicode/norm/tables12.0.0.go
+++ b/vendor/golang.org/x/text/unicode/norm/tables12.0.0.go
@@ -1,5 +1,6 @@
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
+//go:build go1.14 && !go1.16
// +build go1.14,!go1.16
package norm
diff --git a/vendor/golang.org/x/text/unicode/norm/tables13.0.0.go b/vendor/golang.org/x/text/unicode/norm/tables13.0.0.go
index 9ea1b4214..96a130d30 100644
--- a/vendor/golang.org/x/text/unicode/norm/tables13.0.0.go
+++ b/vendor/golang.org/x/text/unicode/norm/tables13.0.0.go
@@ -1,5 +1,6 @@
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
+//go:build go1.16
// +build go1.16
package norm
diff --git a/vendor/golang.org/x/text/unicode/norm/tables9.0.0.go b/vendor/golang.org/x/text/unicode/norm/tables9.0.0.go
index 942906929..0175eae50 100644
--- a/vendor/golang.org/x/text/unicode/norm/tables9.0.0.go
+++ b/vendor/golang.org/x/text/unicode/norm/tables9.0.0.go
@@ -1,5 +1,6 @@
// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
+//go:build !go1.10
// +build !go1.10
package norm