AdjustPos adjusts the given text position as a function of the edit. if the position was within a deleted region of text, del determines what is returned
(pos lexer.Pos, del AdjustPosDel)
| 103 | // if the position was within a deleted region of text, del determines |
| 104 | // what is returned |
| 105 | func (te *Edit) AdjustPos(pos lexer.Pos, del AdjustPosDel) lexer.Pos { |
| 106 | if te == nil { |
| 107 | return pos |
| 108 | } |
| 109 | if pos.IsLess(te.Reg.Start) || pos == te.Reg.Start { |
| 110 | return pos |
| 111 | } |
| 112 | dl := te.Reg.End.Ln - te.Reg.Start.Ln |
| 113 | if pos.Ln > te.Reg.End.Ln { |
| 114 | if te.Delete { |
| 115 | pos.Ln -= dl |
| 116 | } else { |
| 117 | pos.Ln += dl |
| 118 | } |
| 119 | return pos |
| 120 | } |
| 121 | if te.Delete { |
| 122 | if pos.Ln < te.Reg.End.Ln || pos.Ch < te.Reg.End.Ch { |
| 123 | switch del { |
| 124 | case AdjustPosDelStart: |
| 125 | return te.Reg.Start |
| 126 | case AdjustPosDelEnd: |
| 127 | return te.Reg.End |
| 128 | case AdjustPosDelErr: |
| 129 | return lexer.PosErr |
| 130 | } |
| 131 | } |
| 132 | // this means pos.Ln == te.Reg.End.Ln, Ch >= end |
| 133 | if dl == 0 { |
| 134 | pos.Ch -= (te.Reg.End.Ch - te.Reg.Start.Ch) |
| 135 | } else { |
| 136 | pos.Ch -= te.Reg.End.Ch |
| 137 | } |
| 138 | } else { |
| 139 | if dl == 0 { |
| 140 | pos.Ch += (te.Reg.End.Ch - te.Reg.Start.Ch) |
| 141 | } else { |
| 142 | pos.Ln += dl |
| 143 | } |
| 144 | } |
| 145 | return pos |
| 146 | } |
| 147 | |
| 148 | // AdjustPosIfAfterTime checks the time stamp and IfAfterTime, |
| 149 | // it adjusts the given text position as a function of the edit |
no test coverage detected