Numerical controller capable of partial correction of machining cycle

A numerical controller that generates a machining cycle configured by a plurality of blocks in response to a machining cycle generation command of a machining program, and controls a machine tool by executing the machining cycle, the numerical controller including a memory and a processor, the processor configured to perform a method comprising:

• selecting, from among the plurality of blocks of the machining cycle, a block to be corrected based on an operator selection of a tool path to be corrected;
• correcting the selected block based on a correction received from an operator;
• generating correction information of the block based on the correction received from the operator without unfolding the machining cycle into a code program;
• and
• storing the correction information of the block,
• wherein the machining cycle is generated based on the correction information of the block and the machining cycle is executed to control the machine tool.