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author | =Corey Hulen <corey@hulen.com> | 2016-01-19 10:54:19 -0600 |
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committer | =Corey Hulen <corey@hulen.com> | 2016-01-19 10:54:19 -0600 |
commit | 4389571dedb9a68d801427c37ad971c8c488991f (patch) | |
tree | d66189c2ba3c76b76488a3d0dd6ae210ddfc0096 /Godeps/_workspace/src/github.com/nicksnyder/go-i18n/i18n/language/operands.go | |
parent | 80bfdf71f2ab7271dd199c61229fa2b8a7e0213c (diff) | |
download | chat-4389571dedb9a68d801427c37ad971c8c488991f.tar.gz chat-4389571dedb9a68d801427c37ad971c8c488991f.tar.bz2 chat-4389571dedb9a68d801427c37ad971c8c488991f.zip |
PLT-7 adding server side libraries
Diffstat (limited to 'Godeps/_workspace/src/github.com/nicksnyder/go-i18n/i18n/language/operands.go')
-rw-r--r-- | Godeps/_workspace/src/github.com/nicksnyder/go-i18n/i18n/language/operands.go | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/github.com/nicksnyder/go-i18n/i18n/language/operands.go b/Godeps/_workspace/src/github.com/nicksnyder/go-i18n/i18n/language/operands.go new file mode 100644 index 000000000..877bcc89d --- /dev/null +++ b/Godeps/_workspace/src/github.com/nicksnyder/go-i18n/i18n/language/operands.go @@ -0,0 +1,119 @@ +package language + +import ( + "fmt" + "strconv" + "strings" +) + +// http://unicode.org/reports/tr35/tr35-numbers.html#Operands +type operands struct { + N float64 // absolute value of the source number (integer and decimals) + I int64 // integer digits of n + V int64 // number of visible fraction digits in n, with trailing zeros + W int64 // number of visible fraction digits in n, without trailing zeros + F int64 // visible fractional digits in n, with trailing zeros + T int64 // visible fractional digits in n, without trailing zeros +} + +// NmodEqualAny returns true if o represents an integer equal to any of the arguments. +func (o *operands) NequalsAny(any ...int64) bool { + for _, i := range any { + if o.I == i && o.T == 0 { + return true + } + } + return false +} + +// NmodEqualAny returns true if o represents an integer equal to any of the arguments modulo mod. +func (o *operands) NmodEqualsAny(mod int64, any ...int64) bool { + modI := o.I % mod + for _, i := range any { + if modI == i && o.T == 0 { + return true + } + } + return false +} + +// NmodInRange returns true if o represents an integer in the closed interval [from, to]. +func (o *operands) NinRange(from, to int64) bool { + return o.T == 0 && from <= o.I && o.I <= to +} + +// NmodInRange returns true if o represents an integer in the closed interval [from, to] modulo mod. +func (o *operands) NmodInRange(mod, from, to int64) bool { + modI := o.I % mod + return o.T == 0 && from <= modI && modI <= to +} + +func newOperands(v interface{}) (*operands, error) { + switch v := v.(type) { + case int: + return newOperandsInt64(int64(v)), nil + case int8: + return newOperandsInt64(int64(v)), nil + case int16: + return newOperandsInt64(int64(v)), nil + case int32: + return newOperandsInt64(int64(v)), nil + case int64: + return newOperandsInt64(v), nil + case string: + return newOperandsString(v) + case float32, float64: + return nil, fmt.Errorf("floats should be formatted into a string") + default: + return nil, fmt.Errorf("invalid type %T; expected integer or string", v) + } +} + +func newOperandsInt64(i int64) *operands { + if i < 0 { + i = -i + } + return &operands{float64(i), i, 0, 0, 0, 0} +} + +func newOperandsString(s string) (*operands, error) { + if s[0] == '-' { + s = s[1:] + } + n, err := strconv.ParseFloat(s, 64) + if err != nil { + return nil, err + } + ops := &operands{N: n} + parts := strings.SplitN(s, ".", 2) + ops.I, err = strconv.ParseInt(parts[0], 10, 64) + if err != nil { + return nil, err + } + if len(parts) == 1 { + return ops, nil + } + fraction := parts[1] + ops.V = int64(len(fraction)) + for i := ops.V - 1; i >= 0; i-- { + if fraction[i] != '0' { + ops.W = i + 1 + break + } + } + if ops.V > 0 { + f, err := strconv.ParseInt(fraction, 10, 0) + if err != nil { + return nil, err + } + ops.F = f + } + if ops.W > 0 { + t, err := strconv.ParseInt(fraction[:ops.W], 10, 0) + if err != nil { + return nil, err + } + ops.T = t + } + return ops, nil +} |