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Golang value.ToString函数代码示例

本文整理汇总了Golang中github.com/araddon/qlbridge/value.ToString函数的典型用法代码示例。如果您正苦于以下问题：Golang ToString函数的具体用法？Golang ToString怎么用？Golang ToString使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了ToString函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: Qs

// Extract host from a String (must be urlish), doesn't do much/any validation
func Qs(ctx expr.EvalContext, urlItem, keyItem value.Value) (value.StringValue, bool) {
	val, ok := value.ToString(urlItem.Rv())
	if !ok {
		return value.EmptyStringValue, false
	}
	if val == "" {
		return value.EmptyStringValue, false
	}
	urlstr := strings.ToLower(val)
	if len(urlstr) < 8 {
		return value.EmptyStringValue, false
	}
	keyVal, ok := value.ToString(keyItem.Rv())
	if !ok {
		return value.EmptyStringValue, false
	}
	if keyVal == "" {
		return value.EmptyStringValue, false
	}
	if !strings.HasPrefix(urlstr, "http") {
		urlstr = "http://" + urlstr
	}
	if urlParsed, err := url.Parse(urlstr); err == nil {
		//u.Infof("url.parse: %#v", urlParsed)
		qsval, ok := urlParsed.Query()[keyVal]
		if !ok {
			return value.EmptyStringValue, false
		}
		if len(qsval) > 0 {
			return value.NewStringValue(qsval[0]), true
		}
	}

	return value.EmptyStringValue, false
}
开发者ID:jmptrader，项目名称:qlbridge，代码行数:36，代码来源:builtins.go

示例2: ToDate

// todate:   convert to Date
//
//   todate(field)  uses araddon\dateparse util to recognize formats
//
//   todate("01/02/2006", field )  uses golang date parse rules
//      first parameter is the layout/format
//
//
func ToDate(ctx expr.EvalContext, items ...value.Value) (value.TimeValue, bool) {

	if len(items) == 1 {
		dateStr, ok := value.ToString(items[0].Rv())
		if !ok {
			return value.TimeZeroValue, false
		}
		//u.Infof("v=%v   %v  ", v, item.Rv())
		if t, err := dateparse.ParseAny(dateStr); err == nil {
			return value.NewTimeValue(t), true
		}
	} else if len(items) == 2 {
		dateStr, ok := value.ToString(items[1].Rv())
		if !ok {
			return value.TimeZeroValue, false
		}
		formatStr, ok := value.ToString(items[0].Rv())
		if !ok {
			return value.TimeZeroValue, false
		}
		//u.Infof("hello  layout=%v  time=%v", formatStr, dateStr)
		if t, err := time.Parse(formatStr, dateStr); err == nil {
			return value.NewTimeValue(t), true
		}
	}

	return value.TimeZeroValue, false
}
开发者ID:kyledj，项目名称:qlbridge，代码行数:36，代码来源:builtins.go

示例3: TimeExtractFunc

func TimeExtractFunc(ctx expr.EvalContext, items ...value.Value) (value.StringValue, bool) {
	switch len(items) {
	case 0:
		// if we have no "items", return time associated with ctx
		// This is an alias of now()
		t := ctx.Ts()
		if !t.IsZero() {
			return value.NewStringValue(t.String()), true
		}
		return value.EmptyStringValue, false

	case 1:
		// if only 1 item, convert item to time
		dateStr, ok := value.ToString(items[0].Rv())
		if !ok {
			return value.EmptyStringValue, false
		}
		t, err := dateparse.ParseAny(dateStr)
		if err != nil {
			return value.EmptyStringValue, false
		}
		return value.NewStringValue(t.String()), true

	case 2:
		// if we have 2 items, the first is the time string
		// and the second is the format string.
		// Use leekchan/timeutil package
		dateStr, ok := value.ToString(items[0].Rv())
		if !ok {
			return value.EmptyStringValue, false
		}

		formatStr, ok := value.ToString(items[1].Rv())
		if !ok {
			return value.EmptyStringValue, false
		}

		t, err := dateparse.ParseAny(dateStr)
		if err != nil {
			return value.EmptyStringValue, false
		}

		formatted := timeutil.Strftime(&t, formatStr)
		return value.NewStringValue(formatted), true

	default:
		return value.EmptyStringValue, false
	}
}
开发者ID:allisonmorgan，项目名称:qlbridge，代码行数:49，代码来源:builtins.go

示例4: ContainsFunc

// String contains
//   Will first convert to string, so may get unexpected results
//
func ContainsFunc(ctx expr.EvalContext, lv, rv value.Value) (value.BoolValue, bool) {
	left, leftOk := value.ToString(lv.Rv())
	right, rightOk := value.ToString(rv.Rv())
	if !leftOk || !rightOk {
		return value.BoolValueFalse, false
	}
	//u.Infof("Contains(%v, %v)", left, right)
	if left == "" || right == "" {
		return value.BoolValueFalse, false
	}
	if strings.Contains(left, right) {
		return value.BoolValueTrue, true
	}
	return value.BoolValueFalse, true
}
开发者ID:kyledj，项目名称:qlbridge，代码行数:18，代码来源:builtins.go

示例5: SplitFunc

// Split a string, accepts an optional with parameter
//
//     split(item, ",")
//
func SplitFunc(ctx expr.EvalContext, input value.Value, splitByV value.StringValue) (value.StringsValue, bool) {

	sv, ok := value.ToString(input.Rv())
	splitBy, splitByOk := value.ToString(splitByV.Rv())
	if !ok || !splitByOk {
		return value.NewStringsValue(make([]string, 0)), false
	}
	if sv == "" {
		return value.NewStringsValue(make([]string, 0)), false
	}
	if splitBy == "" {
		return value.NewStringsValue(make([]string, 0)), false
	}
	vals := strings.Split(sv, splitBy)
	return value.NewStringsValue(vals), true
}
开发者ID:kyledj，项目名称:qlbridge，代码行数:20，代码来源:builtins.go

示例6: Yy

// Get year in integer from field, must be able to convert to date
//
//    yy()                 =>  15, true    // assuming it is 2015
//    yy("2014-03-01")     =>  14, true
//
func Yy(ctx expr.EvalContext, items ...value.Value) (value.IntValue, bool) {

	yy := 0
	if len(items) == 0 {
		if !ctx.Ts().IsZero() {
			yy = ctx.Ts().Year()
		} else {
			// Do we want to use Now()?
		}
	} else if len(items) == 1 {
		//u.Debugf("has 1 items? %#v", items[0].Rv())
		dateStr, ok := value.ToString(items[0].Rv())
		if !ok {
			return value.NewIntValue(0), false
		}
		//u.Debugf("v=%v   %v", dateStr, items[0].Rv())
		if t, err := dateparse.ParseAny(dateStr); err != nil {
			return value.NewIntValue(0), false
		} else {
			yy = t.Year()
		}
	} else {
		return value.NewIntValue(0), false
	}

	if yy >= 2000 {
		yy = yy - 2000
	} else if yy >= 1900 {
		yy = yy - 1900
	}
	//u.Debugf("yy = %v", yy)
	return value.NewIntValue(int64(yy)), true
}
开发者ID:kyledj，项目名称:qlbridge，代码行数:38，代码来源:builtins.go

示例7: Yy

// Get year in integer from date
func Yy(ctx expr.EvalContext, items ...value.Value) (value.IntValue, bool) {

	yy := 0
	if len(items) == 0 {
		if !ctx.Ts().IsZero() {
			yy = ctx.Ts().Year()
		}
	} else if len(items) == 1 {
		dateStr, ok := value.ToString(items[0].Rv())
		if !ok {
			return value.NewIntValue(0), false
		}
		//u.Infof("v=%v   %v  ", v, item.Rv())
		if t, err := dateparse.ParseAny(dateStr); err != nil {
			return value.NewIntValue(0), false
		} else {
			yy = t.Year()
		}
	} else {
		return value.NewIntValue(0), false
	}

	if yy >= 2000 {
		yy = yy - 2000
	} else if yy >= 1900 {
		yy = yy - 1900
	}
	//u.Infof("%v   yy = %v", item, yy)
	return value.NewIntValue(int64(yy)), true
}
开发者ID:jmptrader，项目名称:qlbridge，代码行数:31，代码来源:builtins.go

示例8: JoinFunc

// Join items together (string concatenation)
//
//   join("apples","oranges",",")   => "apples,oranges"
//   join(["apples","oranges"],",") => "apples,oranges"
//   join("apples","oranges","")    => "applesoranges"
//
func JoinFunc(ctx expr.EvalContext, items ...value.Value) (value.StringValue, bool) {
	if len(items) <= 1 {
		return value.EmptyStringValue, false
	}
	sep, ok := value.ToString(items[len(items)-1].Rv())
	if !ok {
		return value.EmptyStringValue, false
	}
	args := make([]string, 0)
	for i := 0; i < len(items)-1; i++ {
		switch valTyped := items[i].(type) {
		case value.SliceValue:
			vals := make([]string, len(valTyped.Val()))
			for i, sv := range valTyped.Val() {
				vals[i] = sv.ToString()
			}
			args = append(args, vals...)
		case value.StringsValue:
			vals := make([]string, len(valTyped.Val()))
			for i, sv := range valTyped.Val() {
				vals[i] = sv
			}
			args = append(args, vals...)
		case value.StringValue, value.NumberValue, value.IntValue:
			val := valTyped.ToString()
			if val == "" {
				return value.EmptyStringValue, false
			}
			args = append(args, val)
		}

	}
	return value.NewStringValue(strings.Join(args, sep)), true
}
开发者ID:schmichael，项目名称:qlbridge，代码行数:40，代码来源:builtins.go

示例9: Lower

// String lower function
//   must be able to convert to string
//
func Lower(ctx expr.EvalContext, item value.Value) (value.StringValue, bool) {
	val, ok := value.ToString(item.Rv())
	if !ok {
		return value.EmptyStringValue, false
	}
	return value.NewStringValue(strings.ToLower(val)), true
}
开发者ID:kyledj，项目名称:qlbridge，代码行数:10，代码来源:builtins.go

示例10: EmailIsValid

// Example of a custom Function, that we are adding into the Expression VM
//
//         select
//              user_id AS theuserid, email, item_count * 2, reg_date
//         FROM stdio
//         WHERE email_is_valid(email)
func EmailIsValid(ctx expr.EvalContext, email value.Value) (value.BoolValue, bool) {
	emailstr, ok := value.ToString(email.Rv())
	if !ok || emailstr == "" {
		return value.BoolValueFalse, true
	}
	if _, err := mail.ParseAddress(emailstr); err == nil {
		return value.BoolValueTrue, true
	}

	return value.BoolValueFalse, true
}
开发者ID:kyledj，项目名称:qlbridge，代码行数:17，代码来源:main.go

示例11: JoinFunc

// Join items
//
//   join("applies","oranges",",") => "apples,oranges"
//
func JoinFunc(ctx expr.EvalContext, items ...value.Value) (value.StringValue, bool) {
	if len(items) <= 1 {
		return value.EmptyStringValue, false
	}
	sep, ok := value.ToString(items[len(items)-1].Rv())
	if !ok {
		return value.EmptyStringValue, false
	}
	args := make([]string, 0)
	for i := 0; i < len(items)-1; i++ {
		val, ok := value.ToString(items[i].Rv())
		if !ok {
			return value.EmptyStringValue, false
		}
		if val == "" {
			return value.EmptyStringValue, false
		}
		args = append(args, val)
	}
	return value.NewStringValue(strings.Join(args, sep)), true
}
开发者ID:jmptrader，项目名称:qlbridge，代码行数:25，代码来源:builtins.go

示例12: ToTimestamp

// totimestamp:   convert to date, then to unix Seconds
//
func ToTimestamp(ctx expr.EvalContext, item value.Value) (value.IntValue, bool) {

	dateStr, ok := value.ToString(item.Rv())
	if !ok {
		return value.NewIntValue(0), false
	}
	if t, err := dateparse.ParseAny(dateStr); err == nil {
		//u.Infof("v=%v   %v  unix=%v", item, item.Rv(), t.Unix())
		return value.NewIntValue(int64(t.Unix())), true
	}

	return value.NewIntValue(0), false
}
开发者ID:allisonmorgan，项目名称:qlbridge，代码行数:15，代码来源:builtins.go

示例13: ToDate

// todate
func ToDate(ctx expr.EvalContext, item value.Value) (value.TimeValue, bool) {

	dateStr, ok := value.ToString(item.Rv())
	if !ok {
		return value.TimeZeroValue, false
	}
	//u.Infof("v=%v   %v  ", v, item.Rv())
	if t, err := dateparse.ParseAny(dateStr); err == nil {
		return value.NewTimeValue(t), true
	}

	return value.TimeZeroValue, false
}
开发者ID:jmptrader，项目名称:qlbridge，代码行数:14，代码来源:builtins.go

示例14: EmailNameFunc

// emailname a string, parses email
//
//     emailname("Bob <[email protected]>") =>  Bob
//
func EmailNameFunc(ctx expr.EvalContext, item value.Value) (value.StringValue, bool) {
	val, ok := value.ToString(item.Rv())
	if !ok {
		return value.EmptyStringValue, false
	}
	if val == "" {
		return value.EmptyStringValue, false
	}
	if len(val) < 6 {
		return value.EmptyStringValue, false
	}

	if em, err := mail.ParseAddress(val); err == nil {
		return value.NewStringValue(em.Name), true
	}

	return value.EmptyStringValue, false
}
开发者ID:kyledj，项目名称:qlbridge，代码行数:22，代码来源:builtins.go

示例15: HourOfDay

// hour of day [0-23]
func HourOfDay(ctx expr.EvalContext, items ...value.Value) (value.IntValue, bool) {

	if len(items) == 0 {
		if !ctx.Ts().IsZero() {
			return value.NewIntValue(int64(ctx.Ts().Hour())), true
		}
	} else if len(items) == 1 {
		dateStr, ok := value.ToString(items[0].Rv())
		if !ok {
			return value.NewIntValue(0), false
		}
		//u.Infof("v=%v   %v  ", v, items[0].Rv())
		if t, err := dateparse.ParseAny(dateStr); err == nil {
			return value.NewIntValue(int64(t.Hour())), true
		}
	}

	return value.NewIntValue(0), false
}
开发者ID:kyledj，项目名称:qlbridge，代码行数:20，代码来源:builtins.go


注：本文中的github.com/araddon/qlbridge/value.ToString函数示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。