def set_line(self, id, rule, *, args=None, prevs=None, th=None):
"""Set the item with the given id to the following data."""
id = ItemID(id)
prf = self.prf.get_parent_proof(id)
prf.items[id.last()] = ProofItem(id,
rule,
args=args,
prevs=prevs,
th=th)
self.check_proof(compute_only=True)
def remove_line(self, id):
"""Remove line with the given id."""
id = ItemID(id)
prf = self.prf.get_parent_proof(id)
split = id.last()
prf.items = prf.items[:split] + prf.items[split + 1:]
for item in prf.items[split:]:
item.decr_proof_item(id)
self.check_proof(compute_only=True)
def add_line_before(self, id, n):
"""Add n lines before the given id."""
id = ItemID(id)
prf = self.prf.get_parent_proof(id)
split = id.last()
new_items = [ProofItem(id.incr_id(i), "") for i in range(n)]
prf.items = prf.items[:split] + new_items + prf.items[split:]
for item in prf.items[split + n:]:
item.incr_proof_item(id, n)
self.check_proof(compute_only=True)