tests.txt

~triangle A B C

P = (1, 2)
P = foot A B C
P = foot(A, B, C)
P = dir(180)

# comment
P := dir(1, 2) # comment

P_1 ;= foot A B C
P_2 := foot A B C
P_3 dl= foot A B C
P_4 d= foot A B C
P_5 l= foot A B C

P_6 S = (1, 2)
P_7 NE = (1, 2)
P_8 4E2N = (1, 2)
P_9 1N1SE1N = (1, 2)

P := midpoint A--B
P := midpoint (foot A B C)--B
P := midpoint B--(foot A B C)
P := midpoint (foot A B C)--(foot B C A)

P := (rotate -30 E)(D)
P := (rotate -30 E)(foot A B C)
P := (shift (0, 1))(rotate -30 E)(foot A B C)
P := (rotate -30 E)(extension A (foot A B C) C E)

A--B--C--cycle
(foot A B C)--D
D--(foot A B C)
(foot A B C)--(foot B C A)
circumcircle A B C
circumcircle A (extension A B C D) E

A--B / blue
A--B / dashed
A--B / dashed blue
A--B--C--cycle / lightgray / blue
A--B--C--cycle / 0.2 lightgray / dashed blue
A--B--C--cycle / 0.2 lightgray /