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iter_skip_strict.go (2002B)

      1 //+build !jsoniter_sloppy
      2 
      3 package jsoniter
      4 
      5 import (
      6 	"fmt"
      7 	"io"
      8 )
      9 
     10 func (iter *Iterator) skipNumber() {
     11 	if !iter.trySkipNumber() {
     12 		iter.unreadByte()
     13 		if iter.Error != nil && iter.Error != io.EOF {
     14 			return
     15 		}
     16 		iter.ReadFloat64()
     17 		if iter.Error != nil && iter.Error != io.EOF {
     18 			iter.Error = nil
     19 			iter.ReadBigFloat()
     20 		}
     21 	}
     22 }
     23 
     24 func (iter *Iterator) trySkipNumber() bool {
     25 	dotFound := false
     26 	for i := iter.head; i < iter.tail; i++ {
     27 		c := iter.buf[i]
     28 		switch c {
     29 		case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
     30 		case '.':
     31 			if dotFound {
     32 				iter.ReportError("validateNumber", `more than one dot found in number`)
     33 				return true // already failed
     34 			}
     35 			if i+1 == iter.tail {
     36 				return false
     37 			}
     38 			c = iter.buf[i+1]
     39 			switch c {
     40 			case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
     41 			default:
     42 				iter.ReportError("validateNumber", `missing digit after dot`)
     43 				return true // already failed
     44 			}
     45 			dotFound = true
     46 		default:
     47 			switch c {
     48 			case ',', ']', '}', ' ', '\t', '\n', '\r':
     49 				if iter.head == i {
     50 					return false // if - without following digits
     51 				}
     52 				iter.head = i
     53 				return true // must be valid
     54 			}
     55 			return false // may be invalid
     56 		}
     57 	}
     58 	return false
     59 }
     60 
     61 func (iter *Iterator) skipString() {
     62 	if !iter.trySkipString() {
     63 		iter.unreadByte()
     64 		iter.ReadString()
     65 	}
     66 }
     67 
     68 func (iter *Iterator) trySkipString() bool {
     69 	for i := iter.head; i < iter.tail; i++ {
     70 		c := iter.buf[i]
     71 		if c == '"' {
     72 			iter.head = i + 1
     73 			return true // valid
     74 		} else if c == '\\' {
     75 			return false
     76 		} else if c < ' ' {
     77 			iter.ReportError("trySkipString",
     78 				fmt.Sprintf(`invalid control character found: %d`, c))
     79 			return true // already failed
     80 		}
     81 	}
     82 	return false
     83 }
     84 
     85 func (iter *Iterator) skipObject() {
     86 	iter.unreadByte()
     87 	iter.ReadObjectCB(func(iter *Iterator, field string) bool {
     88 		iter.Skip()
     89 		return true
     90 	})
     91 }
     92 
     93 func (iter *Iterator) skipArray() {
     94 	iter.unreadByte()
     95 	iter.ReadArrayCB(func(iter *Iterator) bool {
     96 		iter.Skip()
     97 		return true
     98 	})
     99 }