( op: Operator, count: number, ctx: OperatorContext, )
| 100 | * Execute a line operation (dd, cc, yy). |
| 101 | */ |
| 102 | export function executeLineOp( |
| 103 | op: Operator, |
| 104 | count: number, |
| 105 | ctx: OperatorContext, |
| 106 | ): void { |
| 107 | const text = ctx.text |
| 108 | const lines = text.split('\n') |
| 109 | // Calculate logical line by counting newlines before cursor offset |
| 110 | // (cursor.getPosition() returns wrapped line which is wrong for this) |
| 111 | const currentLine = countCharInString(text.slice(0, ctx.cursor.offset), '\n') |
| 112 | const linesToAffect = Math.min(count, lines.length - currentLine) |
| 113 | const lineStart = ctx.cursor.startOfLogicalLine().offset |
| 114 | let lineEnd = lineStart |
| 115 | for (let i = 0; i < linesToAffect; i++) { |
| 116 | const nextNewline = text.indexOf('\n', lineEnd) |
| 117 | lineEnd = nextNewline === -1 ? text.length : nextNewline + 1 |
| 118 | } |
| 119 | |
| 120 | let content = text.slice(lineStart, lineEnd) |
| 121 | // Ensure linewise content ends with newline for paste detection |
| 122 | if (!content.endsWith('\n')) { |
| 123 | content = content + '\n' |
| 124 | } |
| 125 | ctx.setRegister(content, true) |
| 126 | |
| 127 | if (op === 'yank') { |
| 128 | ctx.setOffset(lineStart) |
| 129 | } else if (op === 'delete') { |
| 130 | let deleteStart = lineStart |
| 131 | const deleteEnd = lineEnd |
| 132 | |
| 133 | // If deleting to end of file and there's a preceding newline, include it |
| 134 | // This ensures deleting the last line doesn't leave a trailing newline |
| 135 | if ( |
| 136 | deleteEnd === text.length && |
| 137 | deleteStart > 0 && |
| 138 | text[deleteStart - 1] === '\n' |
| 139 | ) { |
| 140 | deleteStart -= 1 |
| 141 | } |
| 142 | |
| 143 | const newText = text.slice(0, deleteStart) + text.slice(deleteEnd) |
| 144 | ctx.setText(newText || '') |
| 145 | const maxOff = Math.max( |
| 146 | 0, |
| 147 | newText.length - (lastGrapheme(newText).length || 1), |
| 148 | ) |
| 149 | ctx.setOffset(Math.min(deleteStart, maxOff)) |
| 150 | } else if (op === 'change') { |
| 151 | // For single line, just clear it |
| 152 | if (lines.length === 1) { |
| 153 | ctx.setText('') |
| 154 | ctx.enterInsert(0) |
| 155 | } else { |
| 156 | // Delete all affected lines, replace with single empty line, enter insert |
| 157 | const beforeLines = lines.slice(0, currentLine) |
| 158 | const afterLines = lines.slice(currentLine + linesToAffect) |
| 159 | const newText = [...beforeLines, '', ...afterLines].join('\n') |
no test coverage detected