Function _apply_chunks

src/agents/apply_diff.py:320–344

(input: str, chunks: list[Chunk], newline: str)

def _apply_chunks(input: str, chunks: list[Chunk], newline: str) -> str:
    orig_lines = input.split("\n")
    dest_lines: list[str] = []
    cursor = 0

    for chunk in chunks:
        if chunk.orig_index > len(orig_lines):
            raise ValueError(
                f"applyDiff: chunk.origIndex {chunk.orig_index} > input length {len(orig_lines)}"
            )
        if cursor > chunk.orig_index:
            raise ValueError(
                f"applyDiff: overlapping chunk at {chunk.orig_index} (cursor {cursor})"
            )

        dest_lines.extend(orig_lines[cursor : chunk.orig_index])
        cursor = chunk.orig_index

        if chunk.ins_lines:
            dest_lines.extend(chunk.ins_lines)

        cursor += len(chunk.del_lines)

    dest_lines.extend(orig_lines[cursor:])
    return newline.join(dest_lines)


__all__ = ["apply_diff"]