gtsocial-umbx

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any_str.go (2893B)

      1 package jsoniter
      2 
      3 import (
      4 	"fmt"
      5 	"strconv"
      6 )
      7 
      8 type stringAny struct {
      9 	baseAny
     10 	val string
     11 }
     12 
     13 func (any *stringAny) Get(path ...interface{}) Any {
     14 	if len(path) == 0 {
     15 		return any
     16 	}
     17 	return &invalidAny{baseAny{}, fmt.Errorf("GetIndex %v from simple value", path)}
     18 }
     19 
     20 func (any *stringAny) Parse() *Iterator {
     21 	return nil
     22 }
     23 
     24 func (any *stringAny) ValueType() ValueType {
     25 	return StringValue
     26 }
     27 
     28 func (any *stringAny) MustBeValid() Any {
     29 	return any
     30 }
     31 
     32 func (any *stringAny) LastError() error {
     33 	return nil
     34 }
     35 
     36 func (any *stringAny) ToBool() bool {
     37 	str := any.ToString()
     38 	if str == "0" {
     39 		return false
     40 	}
     41 	for _, c := range str {
     42 		switch c {
     43 		case ' ', '\n', '\r', '\t':
     44 		default:
     45 			return true
     46 		}
     47 	}
     48 	return false
     49 }
     50 
     51 func (any *stringAny) ToInt() int {
     52 	return int(any.ToInt64())
     53 
     54 }
     55 
     56 func (any *stringAny) ToInt32() int32 {
     57 	return int32(any.ToInt64())
     58 }
     59 
     60 func (any *stringAny) ToInt64() int64 {
     61 	if any.val == "" {
     62 		return 0
     63 	}
     64 
     65 	flag := 1
     66 	startPos := 0
     67 	if any.val[0] == '+' || any.val[0] == '-' {
     68 		startPos = 1
     69 	}
     70 
     71 	if any.val[0] == '-' {
     72 		flag = -1
     73 	}
     74 
     75 	endPos := startPos
     76 	for i := startPos; i < len(any.val); i++ {
     77 		if any.val[i] >= '0' && any.val[i] <= '9' {
     78 			endPos = i + 1
     79 		} else {
     80 			break
     81 		}
     82 	}
     83 	parsed, _ := strconv.ParseInt(any.val[startPos:endPos], 10, 64)
     84 	return int64(flag) * parsed
     85 }
     86 
     87 func (any *stringAny) ToUint() uint {
     88 	return uint(any.ToUint64())
     89 }
     90 
     91 func (any *stringAny) ToUint32() uint32 {
     92 	return uint32(any.ToUint64())
     93 }
     94 
     95 func (any *stringAny) ToUint64() uint64 {
     96 	if any.val == "" {
     97 		return 0
     98 	}
     99 
    100 	startPos := 0
    101 
    102 	if any.val[0] == '-' {
    103 		return 0
    104 	}
    105 	if any.val[0] == '+' {
    106 		startPos = 1
    107 	}
    108 
    109 	endPos := startPos
    110 	for i := startPos; i < len(any.val); i++ {
    111 		if any.val[i] >= '0' && any.val[i] <= '9' {
    112 			endPos = i + 1
    113 		} else {
    114 			break
    115 		}
    116 	}
    117 	parsed, _ := strconv.ParseUint(any.val[startPos:endPos], 10, 64)
    118 	return parsed
    119 }
    120 
    121 func (any *stringAny) ToFloat32() float32 {
    122 	return float32(any.ToFloat64())
    123 }
    124 
    125 func (any *stringAny) ToFloat64() float64 {
    126 	if len(any.val) == 0 {
    127 		return 0
    128 	}
    129 
    130 	// first char invalid
    131 	if any.val[0] != '+' && any.val[0] != '-' && (any.val[0] > '9' || any.val[0] < '0') {
    132 		return 0
    133 	}
    134 
    135 	// extract valid num expression from string
    136 	// eg 123true => 123, -12.12xxa => -12.12
    137 	endPos := 1
    138 	for i := 1; i < len(any.val); i++ {
    139 		if any.val[i] == '.' || any.val[i] == 'e' || any.val[i] == 'E' || any.val[i] == '+' || any.val[i] == '-' {
    140 			endPos = i + 1
    141 			continue
    142 		}
    143 
    144 		// end position is the first char which is not digit
    145 		if any.val[i] >= '0' && any.val[i] <= '9' {
    146 			endPos = i + 1
    147 		} else {
    148 			endPos = i
    149 			break
    150 		}
    151 	}
    152 	parsed, _ := strconv.ParseFloat(any.val[:endPos], 64)
    153 	return parsed
    154 }
    155 
    156 func (any *stringAny) ToString() string {
    157 	return any.val
    158 }
    159 
    160 func (any *stringAny) WriteTo(stream *Stream) {
    161 	stream.WriteString(any.val)
    162 }
    163 
    164 func (any *stringAny) GetInterface() interface{} {
    165 	return any.val
    166 }