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author | Felix Lange <fjl@users.noreply.github.com> | 2017-04-12 22:27:23 +0800 |
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committer | Péter Szilágyi <peterke@gmail.com> | 2017-04-12 22:27:23 +0800 |
commit | 30d706c35e16305e2e3ec0eb6a6bdd6aba50d9d2 (patch) | |
tree | 3ec076154049f1fa71b19fd9b7762085059ff15b /vendor/github.com/naoina/go-stringutil/strings.go | |
parent | b57680b0b21036460c689aab1e82d89297738d50 (diff) | |
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cmd/geth: add --config file flag (#13875)
* p2p/discover, p2p/discv5: add marshaling methods to Node
* p2p/netutil: make Netlist decodable from TOML
* common/math: encode nil HexOrDecimal256 as 0x0
* cmd/geth: add --config file flag
* cmd/geth: add missing license header
* eth: prettify Config again, fix tests
* eth: use gasprice.Config instead of duplicating its fields
* eth/gasprice: hide nil default from dumpconfig output
* cmd/geth: hide genesis block in dumpconfig output
* node: make tests compile
* console: fix tests
* cmd/geth: make TOML keys look exactly like Go struct fields
* p2p: use discovery by default
This makes the zero Config slightly more useful. It also fixes package
node tests because Node detects reuse of the datadir through the
NodeDatabase.
* cmd/geth: make ethstats URL settable through config file
* cmd/faucet: fix configuration
* cmd/geth: dedup attach tests
* eth: add comment for DefaultConfig
* eth: pass downloader.SyncMode in Config
This removes the FastSync, LightSync flags in favour of a more
general SyncMode flag.
* cmd/utils: remove jitvm flags
* cmd/utils: make mutually exclusive flag error prettier
It now reads:
Fatal: flags --dev, --testnet can't be used at the same time
* p2p: fix typo
* node: add DefaultConfig, use it for geth
* mobile: add missing NoDiscovery option
* cmd/utils: drop MakeNode
This exposed a couple of places that needed to be updated to use
node.DefaultConfig.
* node: fix typo
* eth: make fast sync the default mode
* cmd/utils: remove IPCApiFlag (unused)
* node: remove default IPC path
Set it in the frontends instead.
* cmd/geth: add --syncmode
* cmd/utils: make --ipcdisable and --ipcpath mutually exclusive
* cmd/utils: don't enable WS, HTTP when setting addr
* cmd/utils: fix --identity
Diffstat (limited to 'vendor/github.com/naoina/go-stringutil/strings.go')
-rw-r--r-- | vendor/github.com/naoina/go-stringutil/strings.go | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/vendor/github.com/naoina/go-stringutil/strings.go b/vendor/github.com/naoina/go-stringutil/strings.go new file mode 100644 index 000000000..881ca2c8f --- /dev/null +++ b/vendor/github.com/naoina/go-stringutil/strings.go @@ -0,0 +1,320 @@ +package stringutil + +import ( + "sync" + "unicode" + "unicode/utf8" +) + +var ( + mu sync.Mutex + + // Based on https://github.com/golang/lint/blob/32a87160691b3c96046c0c678fe57c5bef761456/lint.go#L702 + commonInitialismMap = map[string]struct{}{ + "API": struct{}{}, + "ASCII": struct{}{}, + "CPU": struct{}{}, + "CSRF": struct{}{}, + "CSS": struct{}{}, + "DNS": struct{}{}, + "EOF": struct{}{}, + "GUID": struct{}{}, + "HTML": struct{}{}, + "HTTP": struct{}{}, + "HTTPS": struct{}{}, + "ID": struct{}{}, + "IP": struct{}{}, + "JSON": struct{}{}, + "LHS": struct{}{}, + "QPS": struct{}{}, + "RAM": struct{}{}, + "RHS": struct{}{}, + "RPC": struct{}{}, + "SLA": struct{}{}, + "SMTP": struct{}{}, + "SQL": struct{}{}, + "SSH": struct{}{}, + "TCP": struct{}{}, + "TLS": struct{}{}, + "TTL": struct{}{}, + "UDP": struct{}{}, + "UI": struct{}{}, + "UID": struct{}{}, + "UUID": struct{}{}, + "URI": struct{}{}, + "URL": struct{}{}, + "UTF8": struct{}{}, + "VM": struct{}{}, + "XML": struct{}{}, + "XSRF": struct{}{}, + "XSS": struct{}{}, + } + commonInitialisms = keys(commonInitialismMap) + commonInitialism = mustDoubleArray(newDoubleArray(commonInitialisms)) + longestLen = longestLength(commonInitialisms) + shortestLen = shortestLength(commonInitialisms, longestLen) +) + +// ToUpperCamelCase returns a copy of the string s with all Unicode letters mapped to their camel case. +// It will convert to upper case previous letter of '_' and first letter, and remove letter of '_'. +func ToUpperCamelCase(s string) string { + if s == "" { + return "" + } + upper := true + start := 0 + result := make([]byte, 0, len(s)) + var runeBuf [utf8.UTFMax]byte + var initialism []byte + for _, c := range s { + if c == '_' { + upper = true + candidate := string(result[start:]) + initialism = initialism[:0] + for _, r := range candidate { + if r < utf8.RuneSelf { + initialism = append(initialism, toUpperASCII(byte(r))) + } else { + n := utf8.EncodeRune(runeBuf[:], unicode.ToUpper(r)) + initialism = append(initialism, runeBuf[:n]...) + } + } + if length := commonInitialism.LookupByBytes(initialism); length > 0 { + result = append(result[:start], initialism...) + } + start = len(result) + continue + } + if upper { + if c < utf8.RuneSelf { + result = append(result, toUpperASCII(byte(c))) + } else { + n := utf8.EncodeRune(runeBuf[:], unicode.ToUpper(c)) + result = append(result, runeBuf[:n]...) + } + upper = false + continue + } + if c < utf8.RuneSelf { + result = append(result, byte(c)) + } else { + n := utf8.EncodeRune(runeBuf[:], c) + result = append(result, runeBuf[:n]...) + } + } + candidate := string(result[start:]) + initialism = initialism[:0] + for _, r := range candidate { + if r < utf8.RuneSelf { + initialism = append(initialism, toUpperASCII(byte(r))) + } else { + n := utf8.EncodeRune(runeBuf[:], unicode.ToUpper(r)) + initialism = append(initialism, runeBuf[:n]...) + } + } + if length := commonInitialism.LookupByBytes(initialism); length > 0 { + result = append(result[:start], initialism...) + } + return string(result) +} + +// ToUpperCamelCaseASCII is similar to ToUpperCamelCase, but optimized for +// only the ASCII characters. +// ToUpperCamelCaseASCII is faster than ToUpperCamelCase, but doesn't work if +// contains non-ASCII characters. +func ToUpperCamelCaseASCII(s string) string { + if s == "" { + return "" + } + upper := true + start := 0 + result := make([]byte, 0, len(s)) + var initialism []byte + for i := 0; i < len(s); i++ { + c := s[i] + if c == '_' { + upper = true + candidate := result[start:] + initialism = initialism[:0] + for _, b := range candidate { + initialism = append(initialism, toUpperASCII(b)) + } + if length := commonInitialism.LookupByBytes(initialism); length > 0 { + result = append(result[:start], initialism...) + } + start = len(result) + continue + } + if upper { + result = append(result, toUpperASCII(c)) + upper = false + continue + } + result = append(result, c) + } + candidate := result[start:] + initialism = initialism[:0] + for _, b := range candidate { + initialism = append(initialism, toUpperASCII(b)) + } + if length := commonInitialism.LookupByBytes(initialism); length > 0 { + result = append(result[:start], initialism...) + } + return string(result) +} + +// ToSnakeCase returns a copy of the string s with all Unicode letters mapped to their snake case. +// It will insert letter of '_' at position of previous letter of uppercase and all +// letters convert to lower case. +// ToSnakeCase does not insert '_' letter into a common initialism word like ID, URL and so on. +func ToSnakeCase(s string) string { + if s == "" { + return "" + } + result := make([]byte, 0, len(s)) + var runeBuf [utf8.UTFMax]byte + var j, skipCount int + for i, c := range s { + if i < skipCount { + continue + } + if unicode.IsUpper(c) { + if i != 0 { + result = append(result, '_') + } + next := nextIndex(j, len(s)) + if length := commonInitialism.Lookup(s[j:next]); length > 0 { + for _, r := range s[j : j+length] { + if r < utf8.RuneSelf { + result = append(result, toLowerASCII(byte(r))) + } else { + n := utf8.EncodeRune(runeBuf[:], unicode.ToLower(r)) + result = append(result, runeBuf[:n]...) + } + } + j += length - 1 + skipCount = i + length + continue + } + } + if c < utf8.RuneSelf { + result = append(result, toLowerASCII(byte(c))) + } else { + n := utf8.EncodeRune(runeBuf[:], unicode.ToLower(c)) + result = append(result, runeBuf[:n]...) + } + j++ + } + return string(result) +} + +// ToSnakeCaseASCII is similar to ToSnakeCase, but optimized for only the ASCII +// characters. +// ToSnakeCaseASCII is faster than ToSnakeCase, but doesn't work correctly if +// contains non-ASCII characters. +func ToSnakeCaseASCII(s string) string { + if s == "" { + return "" + } + result := make([]byte, 0, len(s)) + for i := 0; i < len(s); i++ { + c := s[i] + if isUpperASCII(c) { + if i != 0 { + result = append(result, '_') + } + if k := i + shortestLen - 1; k < len(s) && isUpperASCII(s[k]) { + if length := commonInitialism.Lookup(s[i:nextIndex(i, len(s))]); length > 0 { + for j, buf := 0, s[i:i+length]; j < len(buf); j++ { + result = append(result, toLowerASCII(buf[j])) + } + i += length - 1 + continue + } + } + } + result = append(result, toLowerASCII(c)) + } + return string(result) +} + +// AddCommonInitialism adds ss to list of common initialisms. +func AddCommonInitialism(ss ...string) { + mu.Lock() + defer mu.Unlock() + for _, s := range ss { + commonInitialismMap[s] = struct{}{} + } + commonInitialisms = keys(commonInitialismMap) + commonInitialism = mustDoubleArray(newDoubleArray(commonInitialisms)) + longestLen = longestLength(commonInitialisms) + shortestLen = shortestLength(commonInitialisms, longestLen) +} + +// DelCommonInitialism deletes ss from list of common initialisms. +func DelCommonInitialism(ss ...string) { + mu.Lock() + defer mu.Unlock() + for _, s := range ss { + delete(commonInitialismMap, s) + } + commonInitialisms = keys(commonInitialismMap) + commonInitialism = mustDoubleArray(newDoubleArray(commonInitialisms)) + longestLen = longestLength(commonInitialisms) + shortestLen = shortestLength(commonInitialisms, longestLen) +} + +func isUpperASCII(c byte) bool { + return 'A' <= c && c <= 'Z' +} + +func isLowerASCII(c byte) bool { + return 'a' <= c && c <= 'z' +} + +func toUpperASCII(c byte) byte { + if isLowerASCII(c) { + return c - ('a' - 'A') + } + return c +} + +func toLowerASCII(c byte) byte { + if isUpperASCII(c) { + return c + 'a' - 'A' + } + return c +} + +func nextIndex(i, maxlen int) int { + if n := i + longestLen; n < maxlen { + return n + } + return maxlen +} + +func keys(m map[string]struct{}) []string { + result := make([]string, 0, len(m)) + for k := range m { + result = append(result, k) + } + return result +} + +func shortestLength(strs []string, shortest int) int { + for _, s := range strs { + if candidate := utf8.RuneCountInString(s); candidate < shortest { + shortest = candidate + } + } + return shortest +} + +func longestLength(strs []string) (longest int) { + for _, s := range strs { + if candidate := utf8.RuneCountInString(s); candidate > longest { + longest = candidate + } + } + return longest +} |