diff options
author | 2019-04-27 20:38:39 +0900 | |
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committer | 2019-04-27 20:40:37 +0900 | |
commit | 4d11ca17d0f73f5bd783f45900118295fdfed46b (patch) | |
tree | cce8575b02ac850d2b30ec12a5c4083c48e85c6c /src/dma/vendor/golang.org/x/text/unicode/cldr/makexml.go | |
parent | 07e4a96e4996f3d39b92dd601b3ed0d23bfbaa0c (diff) |
barometer: update DMA's vendoring packages
Change-Id: I0578b094f1ecdaed20c906be2ba29d51b8089d7c
Signed-off-by: Tomofumi Hayashi <tohayash@redhat.com>
Diffstat (limited to 'src/dma/vendor/golang.org/x/text/unicode/cldr/makexml.go')
-rw-r--r-- | src/dma/vendor/golang.org/x/text/unicode/cldr/makexml.go | 400 |
1 files changed, 400 insertions, 0 deletions
diff --git a/src/dma/vendor/golang.org/x/text/unicode/cldr/makexml.go b/src/dma/vendor/golang.org/x/text/unicode/cldr/makexml.go new file mode 100644 index 00000000..eb26306d --- /dev/null +++ b/src/dma/vendor/golang.org/x/text/unicode/cldr/makexml.go @@ -0,0 +1,400 @@ +// Copyright 2013 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. + +// +build ignore + +// This tool generates types for the various XML formats of CLDR. +package main + +import ( + "archive/zip" + "bytes" + "encoding/xml" + "flag" + "fmt" + "io" + "io/ioutil" + "log" + "os" + "regexp" + "strings" + + "golang.org/x/text/internal/gen" +) + +var outputFile = flag.String("output", "xml.go", "output file name") + +func main() { + flag.Parse() + + r := gen.OpenCLDRCoreZip() + buffer, err := ioutil.ReadAll(r) + if err != nil { + log.Fatal("Could not read zip file") + } + r.Close() + z, err := zip.NewReader(bytes.NewReader(buffer), int64(len(buffer))) + if err != nil { + log.Fatalf("Could not read zip archive: %v", err) + } + + var buf bytes.Buffer + + version := gen.CLDRVersion() + + for _, dtd := range files { + for _, f := range z.File { + if strings.HasSuffix(f.Name, dtd.file+".dtd") { + r, err := f.Open() + failOnError(err) + + b := makeBuilder(&buf, dtd) + b.parseDTD(r) + b.resolve(b.index[dtd.top[0]]) + b.write() + if b.version != "" && version != b.version { + println(f.Name) + log.Fatalf("main: inconsistent versions: found %s; want %s", b.version, version) + } + break + } + } + } + fmt.Fprintln(&buf, "// Version is the version of CLDR from which the XML definitions are generated.") + fmt.Fprintf(&buf, "const Version = %q\n", version) + + gen.WriteGoFile(*outputFile, "cldr", buf.Bytes()) +} + +func failOnError(err error) { + if err != nil { + log.New(os.Stderr, "", log.Lshortfile).Output(2, err.Error()) + os.Exit(1) + } +} + +// configuration data per DTD type +type dtd struct { + file string // base file name + root string // Go name of the root XML element + top []string // create a different type for this section + + skipElem []string // hard-coded or deprecated elements + skipAttr []string // attributes to exclude + predefined []string // hard-coded elements exist of the form <name>Elem + forceRepeat []string // elements to make slices despite DTD +} + +var files = []dtd{ + { + file: "ldmlBCP47", + root: "LDMLBCP47", + top: []string{"ldmlBCP47"}, + skipElem: []string{ + "cldrVersion", // deprecated, not used + }, + }, + { + file: "ldmlSupplemental", + root: "SupplementalData", + top: []string{"supplementalData"}, + skipElem: []string{ + "cldrVersion", // deprecated, not used + }, + forceRepeat: []string{ + "plurals", // data defined in plurals.xml and ordinals.xml + }, + }, + { + file: "ldml", + root: "LDML", + top: []string{ + "ldml", "collation", "calendar", "timeZoneNames", "localeDisplayNames", "numbers", + }, + skipElem: []string{ + "cp", // not used anywhere + "special", // not used anywhere + "fallback", // deprecated, not used + "alias", // in Common + "default", // in Common + }, + skipAttr: []string{ + "hiraganaQuarternary", // typo in DTD, correct version included as well + }, + predefined: []string{"rules"}, + }, +} + +var comments = map[string]string{ + "ldmlBCP47": ` +// LDMLBCP47 holds information on allowable values for various variables in LDML. +`, + "supplementalData": ` +// SupplementalData holds information relevant for internationalization +// and proper use of CLDR, but that is not contained in the locale hierarchy. +`, + "ldml": ` +// LDML is the top-level type for locale-specific data. +`, + "collation": ` +// Collation contains rules that specify a certain sort-order, +// as a tailoring of the root order. +// The parsed rules are obtained by passing a RuleProcessor to Collation's +// Process method. +`, + "calendar": ` +// Calendar specifies the fields used for formatting and parsing dates and times. +// The month and quarter names are identified numerically, starting at 1. +// The day (of the week) names are identified with short strings, since there is +// no universally-accepted numeric designation. +`, + "dates": ` +// Dates contains information regarding the format and parsing of dates and times. +`, + "localeDisplayNames": ` +// LocaleDisplayNames specifies localized display names for scripts, languages, +// countries, currencies, and variants. +`, + "numbers": ` +// Numbers supplies information for formatting and parsing numbers and currencies. +`, +} + +type element struct { + name string // XML element name + category string // elements contained by this element + signature string // category + attrKey* + + attr []*attribute // attributes supported by this element. + sub []struct { // parsed and evaluated sub elements of this element. + e *element + repeat bool // true if the element needs to be a slice + } + + resolved bool // prevent multiple resolutions of this element. +} + +type attribute struct { + name string + key string + list []string + + tag string // Go tag +} + +var ( + reHead = regexp.MustCompile(` *(\w+) +([\w\-]+)`) + reAttr = regexp.MustCompile(` *(\w+) *(?:(\w+)|\(([\w\- \|]+)\)) *(?:#([A-Z]*) *(?:\"([\.\d+])\")?)? *("[\w\-:]*")?`) + reElem = regexp.MustCompile(`^ *(EMPTY|ANY|\(.*\)[\*\+\?]?) *$`) + reToken = regexp.MustCompile(`\w\-`) +) + +// builder is used to read in the DTD files from CLDR and generate Go code +// to be used with the encoding/xml package. +type builder struct { + w io.Writer + index map[string]*element + elem []*element + info dtd + version string +} + +func makeBuilder(w io.Writer, d dtd) builder { + return builder{ + w: w, + index: make(map[string]*element), + elem: []*element{}, + info: d, + } +} + +// parseDTD parses a DTD file. +func (b *builder) parseDTD(r io.Reader) { + for d := xml.NewDecoder(r); ; { + t, err := d.Token() + if t == nil { + break + } + failOnError(err) + dir, ok := t.(xml.Directive) + if !ok { + continue + } + m := reHead.FindSubmatch(dir) + dir = dir[len(m[0]):] + ename := string(m[2]) + el, elementFound := b.index[ename] + switch string(m[1]) { + case "ELEMENT": + if elementFound { + log.Fatal("parseDTD: duplicate entry for element %q", ename) + } + m := reElem.FindSubmatch(dir) + if m == nil { + log.Fatalf("parseDTD: invalid element %q", string(dir)) + } + if len(m[0]) != len(dir) { + log.Fatal("parseDTD: invalid element %q", string(dir), len(dir), len(m[0]), string(m[0])) + } + s := string(m[1]) + el = &element{ + name: ename, + category: s, + } + b.index[ename] = el + case "ATTLIST": + if !elementFound { + log.Fatalf("parseDTD: unknown element %q", ename) + } + s := string(dir) + m := reAttr.FindStringSubmatch(s) + if m == nil { + log.Fatal(fmt.Errorf("parseDTD: invalid attribute %q", string(dir))) + } + if m[4] == "FIXED" { + b.version = m[5] + } else { + switch m[1] { + case "draft", "references", "alt", "validSubLocales", "standard" /* in Common */ : + case "type", "choice": + default: + el.attr = append(el.attr, &attribute{ + name: m[1], + key: s, + list: reToken.FindAllString(m[3], -1), + }) + el.signature = fmt.Sprintf("%s=%s+%s", el.signature, m[1], m[2]) + } + } + } + } +} + +var reCat = regexp.MustCompile(`[ ,\|]*(?:(\(|\)|\#?[\w_-]+)([\*\+\?]?))?`) + +// resolve takes a parsed element and converts it into structured data +// that can be used to generate the XML code. +func (b *builder) resolve(e *element) { + if e.resolved { + return + } + b.elem = append(b.elem, e) + e.resolved = true + s := e.category + found := make(map[string]bool) + sequenceStart := []int{} + for len(s) > 0 { + m := reCat.FindStringSubmatch(s) + if m == nil { + log.Fatalf("%s: invalid category string %q", e.name, s) + } + repeat := m[2] == "*" || m[2] == "+" || in(b.info.forceRepeat, m[1]) + switch m[1] { + case "": + case "(": + sequenceStart = append(sequenceStart, len(e.sub)) + case ")": + if len(sequenceStart) == 0 { + log.Fatalf("%s: unmatched closing parenthesis", e.name) + } + for i := sequenceStart[len(sequenceStart)-1]; i < len(e.sub); i++ { + e.sub[i].repeat = e.sub[i].repeat || repeat + } + sequenceStart = sequenceStart[:len(sequenceStart)-1] + default: + if in(b.info.skipElem, m[1]) { + } else if sub, ok := b.index[m[1]]; ok { + if !found[sub.name] { + e.sub = append(e.sub, struct { + e *element + repeat bool + }{sub, repeat}) + found[sub.name] = true + b.resolve(sub) + } + } else if m[1] == "#PCDATA" || m[1] == "ANY" { + } else if m[1] != "EMPTY" { + log.Fatalf("resolve:%s: element %q not found", e.name, m[1]) + } + } + s = s[len(m[0]):] + } +} + +// return true if s is contained in set. +func in(set []string, s string) bool { + for _, v := range set { + if v == s { + return true + } + } + return false +} + +var repl = strings.NewReplacer("-", " ", "_", " ") + +// title puts the first character or each character following '_' in title case and +// removes all occurrences of '_'. +func title(s string) string { + return strings.Replace(strings.Title(repl.Replace(s)), " ", "", -1) +} + +// writeElem generates Go code for a single element, recursively. +func (b *builder) writeElem(tab int, e *element) { + p := func(f string, x ...interface{}) { + f = strings.Replace(f, "\n", "\n"+strings.Repeat("\t", tab), -1) + fmt.Fprintf(b.w, f, x...) + } + if len(e.sub) == 0 && len(e.attr) == 0 { + p("Common") + return + } + p("struct {") + tab++ + p("\nCommon") + for _, attr := range e.attr { + if !in(b.info.skipAttr, attr.name) { + p("\n%s string `xml:\"%s,attr\"`", title(attr.name), attr.name) + } + } + for _, sub := range e.sub { + if in(b.info.predefined, sub.e.name) { + p("\n%sElem", sub.e.name) + continue + } + if in(b.info.skipElem, sub.e.name) { + continue + } + p("\n%s ", title(sub.e.name)) + if sub.repeat { + p("[]") + } + p("*") + if in(b.info.top, sub.e.name) { + p(title(sub.e.name)) + } else { + b.writeElem(tab, sub.e) + } + p(" `xml:\"%s\"`", sub.e.name) + } + tab-- + p("\n}") +} + +// write generates the Go XML code. +func (b *builder) write() { + for i, name := range b.info.top { + e := b.index[name] + if e != nil { + fmt.Fprintf(b.w, comments[name]) + name := title(e.name) + if i == 0 { + name = b.info.root + } + fmt.Fprintf(b.w, "type %s ", name) + b.writeElem(0, e) + fmt.Fprint(b.w, "\n") + } + } +} |