def block_view(block, header_transform):
"""View a block with modified output headers
Use this function to adjust the output headers of a ring
on-the-fly, effectively producing a new 'view' of the block.
Args:
block (Block): Input block.
header_transform (function): A function f(hdr) -> new_hdr.
Returns:
A new block that acts as the old block but modifies its sequence
headers on-the-fly.
"""
new_block = copy(block)
new_block.orings = [ring_view(oring, header_transform)
for oring in new_block.orings]
return new_block
def block_view(block, header_transform):
new_block = copy(block)
new_block.orings = [
ring_view(oring, header_transform) for oring in new_block.orings
]
return new_block