function M.insert_at()

in lua/llm/utils.lua [65:77]

• 10 lines of code
• 2 McCabe index (conditional complexity)

function M.insert_at(dst, at, src)
  at = math.max(1, math.min(at, #dst + 1))

  local before = string.sub(dst, 1, at - 1)
  local after = string.sub(dst, at)

  local result = before .. src
  if not M.ends_with(src, after) then
    result = result .. after
  end

  return result
end