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authorMitja Felicijan <mitja.felicijan@gmail.com>2024-10-25 00:47:47 +0200
committerMitja Felicijan <mitja.felicijan@gmail.com>2024-10-25 00:47:47 +0200
commitc6cc0108ca7738023b45e0eeac0fa2390532dd93 (patch)
tree36890e6cd3091bbab8efbe686cc56f467f645bfd /vendor/github.com/dlclark/regexp2/syntax/charclass.go
parent0130404a1dc663d4aa68d780c9bcb23a4243e68d (diff)
downloadjbmafp-master.tar.gz
Added vendor lock on depsHEADmaster
Diffstat (limited to 'vendor/github.com/dlclark/regexp2/syntax/charclass.go')
-rw-r--r--vendor/github.com/dlclark/regexp2/syntax/charclass.go865
1 files changed, 865 insertions, 0 deletions
diff --git a/vendor/github.com/dlclark/regexp2/syntax/charclass.go b/vendor/github.com/dlclark/regexp2/syntax/charclass.go
new file mode 100644
index 0000000..6881a0e
--- /dev/null
+++ b/vendor/github.com/dlclark/regexp2/syntax/charclass.go
@@ -0,0 +1,865 @@
+package syntax
+
+import (
+ "bytes"
+ "encoding/binary"
+ "fmt"
+ "sort"
+ "unicode"
+ "unicode/utf8"
+)
+
+// CharSet combines start-end rune ranges and unicode categories representing a set of characters
+type CharSet struct {
+ ranges []singleRange
+ categories []category
+ sub *CharSet //optional subtractor
+ negate bool
+ anything bool
+}
+
+type category struct {
+ negate bool
+ cat string
+}
+
+type singleRange struct {
+ first rune
+ last rune
+}
+
+const (
+ spaceCategoryText = " "
+ wordCategoryText = "W"
+)
+
+var (
+ ecmaSpace = []rune{0x0009, 0x000e, 0x0020, 0x0021, 0x00a0, 0x00a1, 0x1680, 0x1681, 0x2000, 0x200b, 0x2028, 0x202a, 0x202f, 0x2030, 0x205f, 0x2060, 0x3000, 0x3001, 0xfeff, 0xff00}
+ ecmaWord = []rune{0x0030, 0x003a, 0x0041, 0x005b, 0x005f, 0x0060, 0x0061, 0x007b}
+ ecmaDigit = []rune{0x0030, 0x003a}
+
+ re2Space = []rune{0x0009, 0x000b, 0x000c, 0x000e, 0x0020, 0x0021}
+)
+
+var (
+ AnyClass = getCharSetFromOldString([]rune{0}, false)
+ ECMAAnyClass = getCharSetFromOldString([]rune{0, 0x000a, 0x000b, 0x000d, 0x000e}, false)
+ NoneClass = getCharSetFromOldString(nil, false)
+ ECMAWordClass = getCharSetFromOldString(ecmaWord, false)
+ NotECMAWordClass = getCharSetFromOldString(ecmaWord, true)
+ ECMASpaceClass = getCharSetFromOldString(ecmaSpace, false)
+ NotECMASpaceClass = getCharSetFromOldString(ecmaSpace, true)
+ ECMADigitClass = getCharSetFromOldString(ecmaDigit, false)
+ NotECMADigitClass = getCharSetFromOldString(ecmaDigit, true)
+
+ WordClass = getCharSetFromCategoryString(false, false, wordCategoryText)
+ NotWordClass = getCharSetFromCategoryString(true, false, wordCategoryText)
+ SpaceClass = getCharSetFromCategoryString(false, false, spaceCategoryText)
+ NotSpaceClass = getCharSetFromCategoryString(true, false, spaceCategoryText)
+ DigitClass = getCharSetFromCategoryString(false, false, "Nd")
+ NotDigitClass = getCharSetFromCategoryString(false, true, "Nd")
+
+ RE2SpaceClass = getCharSetFromOldString(re2Space, false)
+ NotRE2SpaceClass = getCharSetFromOldString(re2Space, true)
+)
+
+var unicodeCategories = func() map[string]*unicode.RangeTable {
+ retVal := make(map[string]*unicode.RangeTable)
+ for k, v := range unicode.Scripts {
+ retVal[k] = v
+ }
+ for k, v := range unicode.Categories {
+ retVal[k] = v
+ }
+ for k, v := range unicode.Properties {
+ retVal[k] = v
+ }
+ return retVal
+}()
+
+func getCharSetFromCategoryString(negateSet bool, negateCat bool, cats ...string) func() *CharSet {
+ if negateCat && negateSet {
+ panic("BUG! You should only negate the set OR the category in a constant setup, but not both")
+ }
+
+ c := CharSet{negate: negateSet}
+
+ c.categories = make([]category, len(cats))
+ for i, cat := range cats {
+ c.categories[i] = category{cat: cat, negate: negateCat}
+ }
+ return func() *CharSet {
+ //make a copy each time
+ local := c
+ //return that address
+ return &local
+ }
+}
+
+func getCharSetFromOldString(setText []rune, negate bool) func() *CharSet {
+ c := CharSet{}
+ if len(setText) > 0 {
+ fillFirst := false
+ l := len(setText)
+ if negate {
+ if setText[0] == 0 {
+ setText = setText[1:]
+ } else {
+ l++
+ fillFirst = true
+ }
+ }
+
+ if l%2 == 0 {
+ c.ranges = make([]singleRange, l/2)
+ } else {
+ c.ranges = make([]singleRange, l/2+1)
+ }
+
+ first := true
+ if fillFirst {
+ c.ranges[0] = singleRange{first: 0}
+ first = false
+ }
+
+ i := 0
+ for _, r := range setText {
+ if first {
+ // lower bound in a new range
+ c.ranges[i] = singleRange{first: r}
+ first = false
+ } else {
+ c.ranges[i].last = r - 1
+ i++
+ first = true
+ }
+ }
+ if !first {
+ c.ranges[i].last = utf8.MaxRune
+ }
+ }
+
+ return func() *CharSet {
+ local := c
+ return &local
+ }
+}
+
+// Copy makes a deep copy to prevent accidental mutation of a set
+func (c CharSet) Copy() CharSet {
+ ret := CharSet{
+ anything: c.anything,
+ negate: c.negate,
+ }
+
+ ret.ranges = append(ret.ranges, c.ranges...)
+ ret.categories = append(ret.categories, c.categories...)
+
+ if c.sub != nil {
+ sub := c.sub.Copy()
+ ret.sub = &sub
+ }
+
+ return ret
+}
+
+// gets a human-readable description for a set string
+func (c CharSet) String() string {
+ buf := &bytes.Buffer{}
+ buf.WriteRune('[')
+
+ if c.IsNegated() {
+ buf.WriteRune('^')
+ }
+
+ for _, r := range c.ranges {
+
+ buf.WriteString(CharDescription(r.first))
+ if r.first != r.last {
+ if r.last-r.first != 1 {
+ //groups that are 1 char apart skip the dash
+ buf.WriteRune('-')
+ }
+ buf.WriteString(CharDescription(r.last))
+ }
+ }
+
+ for _, c := range c.categories {
+ buf.WriteString(c.String())
+ }
+
+ if c.sub != nil {
+ buf.WriteRune('-')
+ buf.WriteString(c.sub.String())
+ }
+
+ buf.WriteRune(']')
+
+ return buf.String()
+}
+
+// mapHashFill converts a charset into a buffer for use in maps
+func (c CharSet) mapHashFill(buf *bytes.Buffer) {
+ if c.negate {
+ buf.WriteByte(0)
+ } else {
+ buf.WriteByte(1)
+ }
+
+ binary.Write(buf, binary.LittleEndian, len(c.ranges))
+ binary.Write(buf, binary.LittleEndian, len(c.categories))
+ for _, r := range c.ranges {
+ buf.WriteRune(r.first)
+ buf.WriteRune(r.last)
+ }
+ for _, ct := range c.categories {
+ buf.WriteString(ct.cat)
+ if ct.negate {
+ buf.WriteByte(1)
+ } else {
+ buf.WriteByte(0)
+ }
+ }
+
+ if c.sub != nil {
+ c.sub.mapHashFill(buf)
+ }
+}
+
+// CharIn returns true if the rune is in our character set (either ranges or categories).
+// It handles negations and subtracted sub-charsets.
+func (c CharSet) CharIn(ch rune) bool {
+ val := false
+ // in s && !s.subtracted
+
+ //check ranges
+ for _, r := range c.ranges {
+ if ch < r.first {
+ continue
+ }
+ if ch <= r.last {
+ val = true
+ break
+ }
+ }
+
+ //check categories if we haven't already found a range
+ if !val && len(c.categories) > 0 {
+ for _, ct := range c.categories {
+ // special categories...then unicode
+ if ct.cat == spaceCategoryText {
+ if unicode.IsSpace(ch) {
+ // we found a space so we're done
+ // negate means this is a "bad" thing
+ val = !ct.negate
+ break
+ } else if ct.negate {
+ val = true
+ break
+ }
+ } else if ct.cat == wordCategoryText {
+ if IsWordChar(ch) {
+ val = !ct.negate
+ break
+ } else if ct.negate {
+ val = true
+ break
+ }
+ } else if unicode.Is(unicodeCategories[ct.cat], ch) {
+ // if we're in this unicode category then we're done
+ // if negate=true on this category then we "failed" our test
+ // otherwise we're good that we found it
+ val = !ct.negate
+ break
+ } else if ct.negate {
+ val = true
+ break
+ }
+ }
+ }
+
+ // negate the whole char set
+ if c.negate {
+ val = !val
+ }
+
+ // get subtracted recurse
+ if val && c.sub != nil {
+ val = !c.sub.CharIn(ch)
+ }
+
+ //log.Printf("Char '%v' in %v == %v", string(ch), c.String(), val)
+ return val
+}
+
+func (c category) String() string {
+ switch c.cat {
+ case spaceCategoryText:
+ if c.negate {
+ return "\\S"
+ }
+ return "\\s"
+ case wordCategoryText:
+ if c.negate {
+ return "\\W"
+ }
+ return "\\w"
+ }
+ if _, ok := unicodeCategories[c.cat]; ok {
+
+ if c.negate {
+ return "\\P{" + c.cat + "}"
+ }
+ return "\\p{" + c.cat + "}"
+ }
+ return "Unknown category: " + c.cat
+}
+
+// CharDescription Produces a human-readable description for a single character.
+func CharDescription(ch rune) string {
+ /*if ch == '\\' {
+ return "\\\\"
+ }
+
+ if ch > ' ' && ch <= '~' {
+ return string(ch)
+ } else if ch == '\n' {
+ return "\\n"
+ } else if ch == ' ' {
+ return "\\ "
+ }*/
+
+ b := &bytes.Buffer{}
+ escape(b, ch, false) //fmt.Sprintf("%U", ch)
+ return b.String()
+}
+
+// According to UTS#18 Unicode Regular Expressions (http://www.unicode.org/reports/tr18/)
+// RL 1.4 Simple Word Boundaries The class of <word_character> includes all Alphabetic
+// values from the Unicode character database, from UnicodeData.txt [UData], plus the U+200C
+// ZERO WIDTH NON-JOINER and U+200D ZERO WIDTH JOINER.
+func IsWordChar(r rune) bool {
+ //"L", "Mn", "Nd", "Pc"
+ return unicode.In(r,
+ unicode.Categories["L"], unicode.Categories["Mn"],
+ unicode.Categories["Nd"], unicode.Categories["Pc"]) || r == '\u200D' || r == '\u200C'
+ //return 'A' <= r && r <= 'Z' || 'a' <= r && r <= 'z' || '0' <= r && r <= '9' || r == '_'
+}
+
+func IsECMAWordChar(r rune) bool {
+ return unicode.In(r,
+ unicode.Categories["L"], unicode.Categories["Mn"],
+ unicode.Categories["Nd"], unicode.Categories["Pc"])
+
+ //return 'A' <= r && r <= 'Z' || 'a' <= r && r <= 'z' || '0' <= r && r <= '9' || r == '_'
+}
+
+// SingletonChar will return the char from the first range without validation.
+// It assumes you have checked for IsSingleton or IsSingletonInverse and will panic given bad input
+func (c CharSet) SingletonChar() rune {
+ return c.ranges[0].first
+}
+
+func (c CharSet) IsSingleton() bool {
+ return !c.negate && //negated is multiple chars
+ len(c.categories) == 0 && len(c.ranges) == 1 && // multiple ranges and unicode classes represent multiple chars
+ c.sub == nil && // subtraction means we've got multiple chars
+ c.ranges[0].first == c.ranges[0].last // first and last equal means we're just 1 char
+}
+
+func (c CharSet) IsSingletonInverse() bool {
+ return c.negate && //same as above, but requires negated
+ len(c.categories) == 0 && len(c.ranges) == 1 && // multiple ranges and unicode classes represent multiple chars
+ c.sub == nil && // subtraction means we've got multiple chars
+ c.ranges[0].first == c.ranges[0].last // first and last equal means we're just 1 char
+}
+
+func (c CharSet) IsMergeable() bool {
+ return !c.IsNegated() && !c.HasSubtraction()
+}
+
+func (c CharSet) IsNegated() bool {
+ return c.negate
+}
+
+func (c CharSet) HasSubtraction() bool {
+ return c.sub != nil
+}
+
+func (c CharSet) IsEmpty() bool {
+ return len(c.ranges) == 0 && len(c.categories) == 0 && c.sub == nil
+}
+
+func (c *CharSet) addDigit(ecma, negate bool, pattern string) {
+ if ecma {
+ if negate {
+ c.addRanges(NotECMADigitClass().ranges)
+ } else {
+ c.addRanges(ECMADigitClass().ranges)
+ }
+ } else {
+ c.addCategories(category{cat: "Nd", negate: negate})
+ }
+}
+
+func (c *CharSet) addChar(ch rune) {
+ c.addRange(ch, ch)
+}
+
+func (c *CharSet) addSpace(ecma, re2, negate bool) {
+ if ecma {
+ if negate {
+ c.addRanges(NotECMASpaceClass().ranges)
+ } else {
+ c.addRanges(ECMASpaceClass().ranges)
+ }
+ } else if re2 {
+ if negate {
+ c.addRanges(NotRE2SpaceClass().ranges)
+ } else {
+ c.addRanges(RE2SpaceClass().ranges)
+ }
+ } else {
+ c.addCategories(category{cat: spaceCategoryText, negate: negate})
+ }
+}
+
+func (c *CharSet) addWord(ecma, negate bool) {
+ if ecma {
+ if negate {
+ c.addRanges(NotECMAWordClass().ranges)
+ } else {
+ c.addRanges(ECMAWordClass().ranges)
+ }
+ } else {
+ c.addCategories(category{cat: wordCategoryText, negate: negate})
+ }
+}
+
+// Add set ranges and categories into ours -- no deduping or anything
+func (c *CharSet) addSet(set CharSet) {
+ if c.anything {
+ return
+ }
+ if set.anything {
+ c.makeAnything()
+ return
+ }
+ // just append here to prevent double-canon
+ c.ranges = append(c.ranges, set.ranges...)
+ c.addCategories(set.categories...)
+ c.canonicalize()
+}
+
+func (c *CharSet) makeAnything() {
+ c.anything = true
+ c.categories = []category{}
+ c.ranges = AnyClass().ranges
+}
+
+func (c *CharSet) addCategories(cats ...category) {
+ // don't add dupes and remove positive+negative
+ if c.anything {
+ // if we've had a previous positive+negative group then
+ // just return, we're as broad as we can get
+ return
+ }
+
+ for _, ct := range cats {
+ found := false
+ for _, ct2 := range c.categories {
+ if ct.cat == ct2.cat {
+ if ct.negate != ct2.negate {
+ // oposite negations...this mean we just
+ // take us as anything and move on
+ c.makeAnything()
+ return
+ }
+ found = true
+ break
+ }
+ }
+
+ if !found {
+ c.categories = append(c.categories, ct)
+ }
+ }
+}
+
+// Merges new ranges to our own
+func (c *CharSet) addRanges(ranges []singleRange) {
+ if c.anything {
+ return
+ }
+ c.ranges = append(c.ranges, ranges...)
+ c.canonicalize()
+}
+
+// Merges everything but the new ranges into our own
+func (c *CharSet) addNegativeRanges(ranges []singleRange) {
+ if c.anything {
+ return
+ }
+
+ var hi rune
+
+ // convert incoming ranges into opposites, assume they are in order
+ for _, r := range ranges {
+ if hi < r.first {
+ c.ranges = append(c.ranges, singleRange{hi, r.first - 1})
+ }
+ hi = r.last + 1
+ }
+
+ if hi < utf8.MaxRune {
+ c.ranges = append(c.ranges, singleRange{hi, utf8.MaxRune})
+ }
+
+ c.canonicalize()
+}
+
+func isValidUnicodeCat(catName string) bool {
+ _, ok := unicodeCategories[catName]
+ return ok
+}
+
+func (c *CharSet) addCategory(categoryName string, negate, caseInsensitive bool, pattern string) {
+ if !isValidUnicodeCat(categoryName) {
+ // unknown unicode category, script, or property "blah"
+ panic(fmt.Errorf("Unknown unicode category, script, or property '%v'", categoryName))
+
+ }
+
+ if caseInsensitive && (categoryName == "Ll" || categoryName == "Lu" || categoryName == "Lt") {
+ // when RegexOptions.IgnoreCase is specified then {Ll} {Lu} and {Lt} cases should all match
+ c.addCategories(
+ category{cat: "Ll", negate: negate},
+ category{cat: "Lu", negate: negate},
+ category{cat: "Lt", negate: negate})
+ }
+ c.addCategories(category{cat: categoryName, negate: negate})
+}
+
+func (c *CharSet) addSubtraction(sub *CharSet) {
+ c.sub = sub
+}
+
+func (c *CharSet) addRange(chMin, chMax rune) {
+ c.ranges = append(c.ranges, singleRange{first: chMin, last: chMax})
+ c.canonicalize()
+}
+
+func (c *CharSet) addNamedASCII(name string, negate bool) bool {
+ var rs []singleRange
+
+ switch name {
+ case "alnum":
+ rs = []singleRange{singleRange{'0', '9'}, singleRange{'A', 'Z'}, singleRange{'a', 'z'}}
+ case "alpha":
+ rs = []singleRange{singleRange{'A', 'Z'}, singleRange{'a', 'z'}}
+ case "ascii":
+ rs = []singleRange{singleRange{0, 0x7f}}
+ case "blank":
+ rs = []singleRange{singleRange{'\t', '\t'}, singleRange{' ', ' '}}
+ case "cntrl":
+ rs = []singleRange{singleRange{0, 0x1f}, singleRange{0x7f, 0x7f}}
+ case "digit":
+ c.addDigit(false, negate, "")
+ case "graph":
+ rs = []singleRange{singleRange{'!', '~'}}
+ case "lower":
+ rs = []singleRange{singleRange{'a', 'z'}}
+ case "print":
+ rs = []singleRange{singleRange{' ', '~'}}
+ case "punct": //[!-/:-@[-`{-~]
+ rs = []singleRange{singleRange{'!', '/'}, singleRange{':', '@'}, singleRange{'[', '`'}, singleRange{'{', '~'}}
+ case "space":
+ c.addSpace(true, false, negate)
+ case "upper":
+ rs = []singleRange{singleRange{'A', 'Z'}}
+ case "word":
+ c.addWord(true, negate)
+ case "xdigit":
+ rs = []singleRange{singleRange{'0', '9'}, singleRange{'A', 'F'}, singleRange{'a', 'f'}}
+ default:
+ return false
+ }
+
+ if len(rs) > 0 {
+ if negate {
+ c.addNegativeRanges(rs)
+ } else {
+ c.addRanges(rs)
+ }
+ }
+
+ return true
+}
+
+type singleRangeSorter []singleRange
+
+func (p singleRangeSorter) Len() int { return len(p) }
+func (p singleRangeSorter) Less(i, j int) bool { return p[i].first < p[j].first }
+func (p singleRangeSorter) Swap(i, j int) { p[i], p[j] = p[j], p[i] }
+
+// Logic to reduce a character class to a unique, sorted form.
+func (c *CharSet) canonicalize() {
+ var i, j int
+ var last rune
+
+ //
+ // Find and eliminate overlapping or abutting ranges
+ //
+
+ if len(c.ranges) > 1 {
+ sort.Sort(singleRangeSorter(c.ranges))
+
+ done := false
+
+ for i, j = 1, 0; ; i++ {
+ for last = c.ranges[j].last; ; i++ {
+ if i == len(c.ranges) || last == utf8.MaxRune {
+ done = true
+ break
+ }
+
+ CurrentRange := c.ranges[i]
+ if CurrentRange.first > last+1 {
+ break
+ }
+
+ if last < CurrentRange.last {
+ last = CurrentRange.last
+ }
+ }
+
+ c.ranges[j] = singleRange{first: c.ranges[j].first, last: last}
+
+ j++
+
+ if done {
+ break
+ }
+
+ if j < i {
+ c.ranges[j] = c.ranges[i]
+ }
+ }
+
+ c.ranges = append(c.ranges[:j], c.ranges[len(c.ranges):]...)
+ }
+}
+
+// Adds to the class any lowercase versions of characters already
+// in the class. Used for case-insensitivity.
+func (c *CharSet) addLowercase() {
+ if c.anything {
+ return
+ }
+ toAdd := []singleRange{}
+ for i := 0; i < len(c.ranges); i++ {
+ r := c.ranges[i]
+ if r.first == r.last {
+ lower := unicode.ToLower(r.first)
+ c.ranges[i] = singleRange{first: lower, last: lower}
+ } else {
+ toAdd = append(toAdd, r)
+ }
+ }
+
+ for _, r := range toAdd {
+ c.addLowercaseRange(r.first, r.last)
+ }
+ c.canonicalize()
+}
+
+/**************************************************************************
+ Let U be the set of Unicode character values and let L be the lowercase
+ function, mapping from U to U. To perform case insensitive matching of
+ character sets, we need to be able to map an interval I in U, say
+
+ I = [chMin, chMax] = { ch : chMin <= ch <= chMax }
+
+ to a set A such that A contains L(I) and A is contained in the union of
+ I and L(I).
+
+ The table below partitions U into intervals on which L is non-decreasing.
+ Thus, for any interval J = [a, b] contained in one of these intervals,
+ L(J) is contained in [L(a), L(b)].
+
+ It is also true that for any such J, [L(a), L(b)] is contained in the
+ union of J and L(J). This does not follow from L being non-decreasing on
+ these intervals. It follows from the nature of the L on each interval.
+ On each interval, L has one of the following forms:
+
+ (1) L(ch) = constant (LowercaseSet)
+ (2) L(ch) = ch + offset (LowercaseAdd)
+ (3) L(ch) = ch | 1 (LowercaseBor)
+ (4) L(ch) = ch + (ch & 1) (LowercaseBad)
+
+ It is easy to verify that for any of these forms [L(a), L(b)] is
+ contained in the union of [a, b] and L([a, b]).
+***************************************************************************/
+
+const (
+ LowercaseSet = 0 // Set to arg.
+ LowercaseAdd = 1 // Add arg.
+ LowercaseBor = 2 // Bitwise or with 1.
+ LowercaseBad = 3 // Bitwise and with 1 and add original.
+)
+
+type lcMap struct {
+ chMin, chMax rune
+ op, data int32
+}
+
+var lcTable = []lcMap{
+ lcMap{'\u0041', '\u005A', LowercaseAdd, 32},
+ lcMap{'\u00C0', '\u00DE', LowercaseAdd, 32},
+ lcMap{'\u0100', '\u012E', LowercaseBor, 0},
+ lcMap{'\u0130', '\u0130', LowercaseSet, 0x0069},
+ lcMap{'\u0132', '\u0136', LowercaseBor, 0},
+ lcMap{'\u0139', '\u0147', LowercaseBad, 0},
+ lcMap{'\u014A', '\u0176', LowercaseBor, 0},
+ lcMap{'\u0178', '\u0178', LowercaseSet, 0x00FF},
+ lcMap{'\u0179', '\u017D', LowercaseBad, 0},
+ lcMap{'\u0181', '\u0181', LowercaseSet, 0x0253},
+ lcMap{'\u0182', '\u0184', LowercaseBor, 0},
+ lcMap{'\u0186', '\u0186', LowercaseSet, 0x0254},
+ lcMap{'\u0187', '\u0187', LowercaseSet, 0x0188},
+ lcMap{'\u0189', '\u018A', LowercaseAdd, 205},
+ lcMap{'\u018B', '\u018B', LowercaseSet, 0x018C},
+ lcMap{'\u018E', '\u018E', LowercaseSet, 0x01DD},
+ lcMap{'\u018F', '\u018F', LowercaseSet, 0x0259},
+ lcMap{'\u0190', '\u0190', LowercaseSet, 0x025B},
+ lcMap{'\u0191', '\u0191', LowercaseSet, 0x0192},
+ lcMap{'\u0193', '\u0193', LowercaseSet, 0x0260},
+ lcMap{'\u0194', '\u0194', LowercaseSet, 0x0263},
+ lcMap{'\u0196', '\u0196', LowercaseSet, 0x0269},
+ lcMap{'\u0197', '\u0197', LowercaseSet, 0x0268},
+ lcMap{'\u0198', '\u0198', LowercaseSet, 0x0199},
+ lcMap{'\u019C', '\u019C', LowercaseSet, 0x026F},
+ lcMap{'\u019D', '\u019D', LowercaseSet, 0x0272},
+ lcMap{'\u019F', '\u019F', LowercaseSet, 0x0275},
+ lcMap{'\u01A0', '\u01A4', LowercaseBor, 0},
+ lcMap{'\u01A7', '\u01A7', LowercaseSet, 0x01A8},
+ lcMap{'\u01A9', '\u01A9', LowercaseSet, 0x0283},
+ lcMap{'\u01AC', '\u01AC', LowercaseSet, 0x01AD},
+ lcMap{'\u01AE', '\u01AE', LowercaseSet, 0x0288},
+ lcMap{'\u01AF', '\u01AF', LowercaseSet, 0x01B0},
+ lcMap{'\u01B1', '\u01B2', LowercaseAdd, 217},
+ lcMap{'\u01B3', '\u01B5', LowercaseBad, 0},
+ lcMap{'\u01B7', '\u01B7', LowercaseSet, 0x0292},
+ lcMap{'\u01B8', '\u01B8', LowercaseSet, 0x01B9},
+ lcMap{'\u01BC', '\u01BC', LowercaseSet, 0x01BD},
+ lcMap{'\u01C4', '\u01C5', LowercaseSet, 0x01C6},
+ lcMap{'\u01C7', '\u01C8', LowercaseSet, 0x01C9},
+ lcMap{'\u01CA', '\u01CB', LowercaseSet, 0x01CC},
+ lcMap{'\u01CD', '\u01DB', LowercaseBad, 0},
+ lcMap{'\u01DE', '\u01EE', LowercaseBor, 0},
+ lcMap{'\u01F1', '\u01F2', LowercaseSet, 0x01F3},
+ lcMap{'\u01F4', '\u01F4', LowercaseSet, 0x01F5},
+ lcMap{'\u01FA', '\u0216', LowercaseBor, 0},
+ lcMap{'\u0386', '\u0386', LowercaseSet, 0x03AC},
+ lcMap{'\u0388', '\u038A', LowercaseAdd, 37},
+ lcMap{'\u038C', '\u038C', LowercaseSet, 0x03CC},
+ lcMap{'\u038E', '\u038F', LowercaseAdd, 63},
+ lcMap{'\u0391', '\u03AB', LowercaseAdd, 32},
+ lcMap{'\u03E2', '\u03EE', LowercaseBor, 0},
+ lcMap{'\u0401', '\u040F', LowercaseAdd, 80},
+ lcMap{'\u0410', '\u042F', LowercaseAdd, 32},
+ lcMap{'\u0460', '\u0480', LowercaseBor, 0},
+ lcMap{'\u0490', '\u04BE', LowercaseBor, 0},
+ lcMap{'\u04C1', '\u04C3', LowercaseBad, 0},
+ lcMap{'\u04C7', '\u04C7', LowercaseSet, 0x04C8},
+ lcMap{'\u04CB', '\u04CB', LowercaseSet, 0x04CC},
+ lcMap{'\u04D0', '\u04EA', LowercaseBor, 0},
+ lcMap{'\u04EE', '\u04F4', LowercaseBor, 0},
+ lcMap{'\u04F8', '\u04F8', LowercaseSet, 0x04F9},
+ lcMap{'\u0531', '\u0556', LowercaseAdd, 48},
+ lcMap{'\u10A0', '\u10C5', LowercaseAdd, 48},
+ lcMap{'\u1E00', '\u1EF8', LowercaseBor, 0},
+ lcMap{'\u1F08', '\u1F0F', LowercaseAdd, -8},
+ lcMap{'\u1F18', '\u1F1F', LowercaseAdd, -8},
+ lcMap{'\u1F28', '\u1F2F', LowercaseAdd, -8},
+ lcMap{'\u1F38', '\u1F3F', LowercaseAdd, -8},
+ lcMap{'\u1F48', '\u1F4D', LowercaseAdd, -8},
+ lcMap{'\u1F59', '\u1F59', LowercaseSet, 0x1F51},
+ lcMap{'\u1F5B', '\u1F5B', LowercaseSet, 0x1F53},
+ lcMap{'\u1F5D', '\u1F5D', LowercaseSet, 0x1F55},
+ lcMap{'\u1F5F', '\u1F5F', LowercaseSet, 0x1F57},
+ lcMap{'\u1F68', '\u1F6F', LowercaseAdd, -8},
+ lcMap{'\u1F88', '\u1F8F', LowercaseAdd, -8},
+ lcMap{'\u1F98', '\u1F9F', LowercaseAdd, -8},
+ lcMap{'\u1FA8', '\u1FAF', LowercaseAdd, -8},
+ lcMap{'\u1FB8', '\u1FB9', LowercaseAdd, -8},
+ lcMap{'\u1FBA', '\u1FBB', LowercaseAdd, -74},
+ lcMap{'\u1FBC', '\u1FBC', LowercaseSet, 0x1FB3},
+ lcMap{'\u1FC8', '\u1FCB', LowercaseAdd, -86},
+ lcMap{'\u1FCC', '\u1FCC', LowercaseSet, 0x1FC3},
+ lcMap{'\u1FD8', '\u1FD9', LowercaseAdd, -8},
+ lcMap{'\u1FDA', '\u1FDB', LowercaseAdd, -100},
+ lcMap{'\u1FE8', '\u1FE9', LowercaseAdd, -8},
+ lcMap{'\u1FEA', '\u1FEB', LowercaseAdd, -112},
+ lcMap{'\u1FEC', '\u1FEC', LowercaseSet, 0x1FE5},
+ lcMap{'\u1FF8', '\u1FF9', LowercaseAdd, -128},
+ lcMap{'\u1FFA', '\u1FFB', LowercaseAdd, -126},
+ lcMap{'\u1FFC', '\u1FFC', LowercaseSet, 0x1FF3},
+ lcMap{'\u2160', '\u216F', LowercaseAdd, 16},
+ lcMap{'\u24B6', '\u24D0', LowercaseAdd, 26},
+ lcMap{'\uFF21', '\uFF3A', LowercaseAdd, 32},
+}
+
+func (c *CharSet) addLowercaseRange(chMin, chMax rune) {
+ var i, iMax, iMid int
+ var chMinT, chMaxT rune
+ var lc lcMap
+
+ for i, iMax = 0, len(lcTable); i < iMax; {
+ iMid = (i + iMax) / 2
+ if lcTable[iMid].chMax < chMin {
+ i = iMid + 1
+ } else {
+ iMax = iMid
+ }
+ }
+
+ for ; i < len(lcTable); i++ {
+ lc = lcTable[i]
+ if lc.chMin > chMax {
+ return
+ }
+ chMinT = lc.chMin
+ if chMinT < chMin {
+ chMinT = chMin
+ }
+
+ chMaxT = lc.chMax
+ if chMaxT > chMax {
+ chMaxT = chMax
+ }
+
+ switch lc.op {
+ case LowercaseSet:
+ chMinT = rune(lc.data)
+ chMaxT = rune(lc.data)
+ break
+ case LowercaseAdd:
+ chMinT += lc.data
+ chMaxT += lc.data
+ break
+ case LowercaseBor:
+ chMinT |= 1
+ chMaxT |= 1
+ break
+ case LowercaseBad:
+ chMinT += (chMinT & 1)
+ chMaxT += (chMaxT & 1)
+ break
+ }
+
+ if chMinT < chMin || chMaxT > chMax {
+ c.addRange(chMinT, chMaxT)
+ }
+ }
+}