khenaidoo | ab1f7bd | 2019-11-14 14:00:27 -0500 | [diff] [blame] | 1 | //+build jsoniter_sloppy |
| 2 | |
| 3 | package jsoniter |
| 4 | |
| 5 | // sloppy but faster implementation, do not validate the input json |
| 6 | |
| 7 | func (iter *Iterator) skipNumber() { |
| 8 | for { |
| 9 | for i := iter.head; i < iter.tail; i++ { |
| 10 | c := iter.buf[i] |
| 11 | switch c { |
| 12 | case ' ', '\n', '\r', '\t', ',', '}', ']': |
| 13 | iter.head = i |
| 14 | return |
| 15 | } |
| 16 | } |
| 17 | if !iter.loadMore() { |
| 18 | return |
| 19 | } |
| 20 | } |
| 21 | } |
| 22 | |
| 23 | func (iter *Iterator) skipArray() { |
| 24 | level := 1 |
khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame] | 25 | if !iter.incrementDepth() { |
| 26 | return |
| 27 | } |
khenaidoo | ab1f7bd | 2019-11-14 14:00:27 -0500 | [diff] [blame] | 28 | for { |
| 29 | for i := iter.head; i < iter.tail; i++ { |
| 30 | switch iter.buf[i] { |
| 31 | case '"': // If inside string, skip it |
| 32 | iter.head = i + 1 |
| 33 | iter.skipString() |
| 34 | i = iter.head - 1 // it will be i++ soon |
| 35 | case '[': // If open symbol, increase level |
| 36 | level++ |
khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame] | 37 | if !iter.incrementDepth() { |
| 38 | return |
| 39 | } |
khenaidoo | ab1f7bd | 2019-11-14 14:00:27 -0500 | [diff] [blame] | 40 | case ']': // If close symbol, increase level |
| 41 | level-- |
khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame] | 42 | if !iter.decrementDepth() { |
| 43 | return |
| 44 | } |
khenaidoo | ab1f7bd | 2019-11-14 14:00:27 -0500 | [diff] [blame] | 45 | |
| 46 | // If we have returned to the original level, we're done |
| 47 | if level == 0 { |
| 48 | iter.head = i + 1 |
| 49 | return |
| 50 | } |
| 51 | } |
| 52 | } |
| 53 | if !iter.loadMore() { |
| 54 | iter.ReportError("skipObject", "incomplete array") |
| 55 | return |
| 56 | } |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | func (iter *Iterator) skipObject() { |
| 61 | level := 1 |
khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame] | 62 | if !iter.incrementDepth() { |
| 63 | return |
| 64 | } |
| 65 | |
khenaidoo | ab1f7bd | 2019-11-14 14:00:27 -0500 | [diff] [blame] | 66 | for { |
| 67 | for i := iter.head; i < iter.tail; i++ { |
| 68 | switch iter.buf[i] { |
| 69 | case '"': // If inside string, skip it |
| 70 | iter.head = i + 1 |
| 71 | iter.skipString() |
| 72 | i = iter.head - 1 // it will be i++ soon |
| 73 | case '{': // If open symbol, increase level |
| 74 | level++ |
khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame] | 75 | if !iter.incrementDepth() { |
| 76 | return |
| 77 | } |
khenaidoo | ab1f7bd | 2019-11-14 14:00:27 -0500 | [diff] [blame] | 78 | case '}': // If close symbol, increase level |
| 79 | level-- |
khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame] | 80 | if !iter.decrementDepth() { |
| 81 | return |
| 82 | } |
khenaidoo | ab1f7bd | 2019-11-14 14:00:27 -0500 | [diff] [blame] | 83 | |
| 84 | // If we have returned to the original level, we're done |
| 85 | if level == 0 { |
| 86 | iter.head = i + 1 |
| 87 | return |
| 88 | } |
| 89 | } |
| 90 | } |
| 91 | if !iter.loadMore() { |
| 92 | iter.ReportError("skipObject", "incomplete object") |
| 93 | return |
| 94 | } |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | func (iter *Iterator) skipString() { |
| 99 | for { |
| 100 | end, escaped := iter.findStringEnd() |
| 101 | if end == -1 { |
| 102 | if !iter.loadMore() { |
| 103 | iter.ReportError("skipString", "incomplete string") |
| 104 | return |
| 105 | } |
| 106 | if escaped { |
| 107 | iter.head = 1 // skip the first char as last char read is \ |
| 108 | } |
| 109 | } else { |
| 110 | iter.head = end |
| 111 | return |
| 112 | } |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | // adapted from: https://github.com/buger/jsonparser/blob/master/parser.go |
| 117 | // Tries to find the end of string |
| 118 | // Support if string contains escaped quote symbols. |
| 119 | func (iter *Iterator) findStringEnd() (int, bool) { |
| 120 | escaped := false |
| 121 | for i := iter.head; i < iter.tail; i++ { |
| 122 | c := iter.buf[i] |
| 123 | if c == '"' { |
| 124 | if !escaped { |
| 125 | return i + 1, false |
| 126 | } |
| 127 | j := i - 1 |
| 128 | for { |
| 129 | if j < iter.head || iter.buf[j] != '\\' { |
| 130 | // even number of backslashes |
| 131 | // either end of buffer, or " found |
| 132 | return i + 1, true |
| 133 | } |
| 134 | j-- |
| 135 | if j < iter.head || iter.buf[j] != '\\' { |
| 136 | // odd number of backslashes |
| 137 | // it is \" or \\\" |
| 138 | break |
| 139 | } |
| 140 | j-- |
| 141 | } |
| 142 | } else if c == '\\' { |
| 143 | escaped = true |
| 144 | } |
| 145 | } |
| 146 | j := iter.tail - 1 |
| 147 | for { |
| 148 | if j < iter.head || iter.buf[j] != '\\' { |
| 149 | // even number of backslashes |
| 150 | // either end of buffer, or " found |
| 151 | return -1, false // do not end with \ |
| 152 | } |
| 153 | j-- |
| 154 | if j < iter.head || iter.buf[j] != '\\' { |
| 155 | // odd number of backslashes |
| 156 | // it is \" or \\\" |
| 157 | break |
| 158 | } |
| 159 | j-- |
| 160 | |
| 161 | } |
| 162 | return -1, true // end with \ |
| 163 | } |