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array.go
104 lines (84 loc) · 1.38 KB
/
array.go
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package jsonextract
import (
"io"
"unicode"
)
func parseArray(r reader) (*JSON, error) {
json := &JSON{kind: Array}
json.push('[')
vals := make([]*JSON, 0)
// find first value
for {
char, _, err := r.ReadRune()
if err != nil {
if err == io.EOF {
return nil, errInvalid
}
return nil, err
}
if unicode.IsControl(char) || char == ' ' {
continue
}
if char == ']' {
json.push(char)
json.val = vals
return json, nil
}
val, err := parse(r, char)
if err != nil {
return nil, err
}
if val == nil {
return nil, errInvalid
}
vals = append(vals, val)
json.pushRns(val.raw)
val.parent = json
break
}
onNext := false
for {
char, _, err := r.ReadRune()
if err != nil {
if err == io.EOF {
return nil, errInvalid
}
return nil, err
}
if unicode.IsControl(char) || char == ' ' {
continue
}
if char == ']' {
if onNext {
return nil, errInvalid
}
json.push(char)
json.val = vals
break
}
if char == ',' {
if onNext {
return nil, errInvalid
}
onNext = true
json.push(char)
continue
}
if onNext {
val, err := parse(r, char)
if err != nil {
return nil, err
}
if val == nil {
return nil, errInvalid
}
vals = append(vals, val)
json.val = vals
json.pushRns(val.raw)
onNext = false
val.parent = json
continue
}
}
return json, nil
}