109 lines
1.9 KiB
Go
109 lines
1.9 KiB
Go
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package crontab
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import (
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"strconv"
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"testing"
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"github.com/davecgh/go-spew/spew"
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)
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var VarDict = make(map[string]interface{})
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var FuncDict = make(map[string]func(vars ...interface{}) interface{})
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func init() {
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VarDict["w"] = float64(2.0)
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VarDict["f"] = float64(0.0)
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VarDict["s"] = float64(0.0)
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FuncDict["add"] = Add
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FuncDict["sub"] = Sub
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FuncDict["mul"] = Mul
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FuncDict["div"] = Div
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}
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type Object struct {
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value string
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ctype string
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param *Object
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}
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func (obj *Object) Value() interface{} {
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switch obj.ctype {
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case "const":
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fvar, err := strconv.ParseFloat(obj.value, 64)
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if err != nil {
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panic(err)
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}
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return fvar
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case "var":
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return VarDict[obj.value]
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case "call":
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var params []interface{}
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cur := obj.param
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for cur != nil {
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params = append(params, cur.Value())
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}
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return FuncDict[obj.value](params...)
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}
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panic("err type")
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}
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func (obj *Object) SetValue(v *Object) {
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VarDict[obj.value] = v.Value()
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}
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parse
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func TestParse(t *testing.T) {
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t.Error()
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condition := &Object{}
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condExpr := "5>n>12|n<15|add(1,5){w=5},f>5{w=5s;add(1,2)}"
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ParseExpr:
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for _, expr := range parseConditionExpr(condExpr) {
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// condexpr
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for i := 0; i < len(expr); i++ {
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if expr[i] == '{' {
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s := i
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for s > 0 {
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switch expr[s] {
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case ' ':
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s--
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case '=':
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// 判断 = 定义表达
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// parseDefine(expr[0:s], expr[i+1:])
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continue ParseExpr
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default:
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// 判断 = 条件表达
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exec := Execute{conds: parseCondCalls(expr[0:s]), calls: parseCalls(expr[i+1:])}
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condition.execList = append(condition.execList, exec)
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continue ParseExpr
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}
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}
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// 判断 = 执行表达
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exec := Execute{calls: parseCalls(expr)}
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condition.execList = append(condition.execList, exec)
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continue ParseExpr
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}
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}
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// 找不到{ 判断 = 执行表达
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exec := Execute{calls: parseCalls(expr)}
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condition.execList = append(condition.execList, exec)
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}
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spew.Dump(condition)
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}
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