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import os
import re
import math
from pathlib import Path
TARGET = Path(os.environ.get("EVAL_TARGET_DIR", r"C:\Users\User\Desktop"))
OUTPUT = "task-14.nc"
TOL = 0.75
FORBIDDEN_EXTENSIONS = {
".py", ".pyw", ".ipynb", ".sh", ".bat", ".cmd", ".ps1", ".vbs",
".js", ".mjs", ".ts", ".rb", ".lua", ".tcl", ".ahk", ".scr",
}
def strip_comments(line: str) -> str:
line = re.sub(r"\([^)]*\)", " ", line)
return line.split(";", 1)[0].strip().upper()
def no_bypass_files(root: Path) -> bool:
try:
return not any(
path.is_file()
and path.name.lower() != "eval.py"
and path.suffix.lower() in FORBIDDEN_EXTENSIONS
for path in root.rglob("*")
)
except Exception:
return False
def close(a: float, b: float, tol: float = TOL) -> bool:
return abs(float(a) - float(b)) <= tol
def parse_program(src: str):
raw_lines = src.upper().splitlines()
executable = []
for index, raw in enumerate(raw_lines):
code = strip_comments(raw)
if code and code != "%":
executable.append((index, code))
if not executable:
raise ValueError("empty program")
m30_positions = [pos for pos, (_, code) in enumerate(executable) if re.search(r"\bM0*30\b", code)]
if len(m30_positions) != 1 or m30_positions[0] != len(executable) - 1:
raise ValueError("M30 must be the final executable block")
program_words = [int(value) for _, code in executable for value in re.findall(r"\bO0*(\d+)\b", code)]
if program_words != [2034]:
raise ValueError("expected exactly O2034")
if any(re.search(r"\bG0*20\b", code) for _, code in executable):
raise ValueError("inch mode is forbidden")
if not any(re.search(r"\bG0*21\b", code) for _, code in executable):
raise ValueError("metric mode is required")
numbered = []
for _, code in executable:
if re.search(r"\bO0*2034\b", code) and not re.match(r"^N\d+\b", code):
continue
match = re.match(r"^N(\d+)\b", code)
if match is None:
raise ValueError("every executable block after O2034 must be numbered")
numbered.append(int(match.group(1)))
if len(numbered) < 30 or numbered[0] != 1:
raise ValueError("sequence must start at N1")
if any(right - left != 1 for left, right in zip(numbered, numbered[1:])):
raise ValueError("sequence increment must be 1")
state = {"x": None, "y": None, "z": None, "motion": None, "tool": None}
pending_tool = None
tool_order = []
records = []
flags = {"g90": False, "wcs": False, "g43": False, "spindle": False}
for index, code in executable:
tool_match = re.search(r"\bT0*(\d+)\b", code)
if tool_match:
pending_tool = int(tool_match.group(1))
if re.search(r"\bM0*6\b", code):
if pending_tool is None:
raise ValueError("M6 without a selected tool")
state["tool"] = pending_tool
if pending_tool not in tool_order:
tool_order.append(pending_tool)
if re.search(r"\bG0*90\b", code):
flags["g90"] = True
if re.search(r"\bG5[4-9]\b", code):
flags["wcs"] = True
if re.search(r"\bG0*43\b", code) and re.search(r"\bH\d+\b", code):
flags["g43"] = True
if re.search(r"\bM0*[34]\b", code) and re.search(r"\bS\d+(?:\.\d+)?\b", code):
flags["spindle"] = True
g_codes = [int(value) for value in re.findall(r"\bG0*(\d+)\b", code)]
if 80 in g_codes:
state["motion"] = None
explicit_motion = next((value for value in g_codes if value in {0, 1, 2, 3, 81, 82, 83}), None)
if explicit_motion is not None:
state["motion"] = explicit_motion
explicit = {}
for axis in "XYZQRF":
match = re.search(rf"\b{axis}([+-]?\d+(?:\.\d+)?)", code)
if match:
explicit[axis.lower()] = float(match.group(1))
if state["motion"] is None or not any(axis in explicit for axis in ("x", "y", "z")):
continue
start = {axis: state[axis] for axis in ("x", "y", "z")}
for axis in ("x", "y", "z"):
if axis in explicit:
state[axis] = explicit[axis]
records.append(
{
"index": index,
"code": state["motion"],
"tool": state["tool"],
"start": start,
"end": {axis: state[axis] for axis in ("x", "y", "z")},
"explicit": explicit,
}
)
return raw_lines, tool_order, records, flags
def xy_changed(record) -> bool:
start, end = record["start"], record["end"]
return (
None not in (start["x"], start["y"], end["x"], end["y"])
and (not close(start["x"], end["x"], 1e-6) or not close(start["y"], end["y"], 1e-6))
)
def _unique_points(records) -> list[tuple[float, float]]:
points: list[tuple[float, float]] = []
for record in records:
end = record["end"]
if end["x"] is None or end["y"] is None:
continue
point = (float(end["x"]), float(end["y"]))
if not any(close(point[0], old[0]) and close(point[1], old[1]) for old in points):
points.append(point)
return points
def _drill_frame(points: list[tuple[float, float]]):
"""Return the center and local long/short axes of a 50 x 30 hole rectangle."""
if len(points) != 4:
return None
center = (
sum(point[0] for point in points) / 4.0,
sum(point[1] for point in points) / 4.0,
)
if any(
not any(
close(other[0], 2 * center[0] - point[0])
and close(other[1], 2 * center[1] - point[1])
for other in points
)
for point in points
):
return None
origin = points[0]
vectors = []
for point in points[1:]:
dx, dy = point[0] - origin[0], point[1] - origin[1]
vectors.append((math.hypot(dx, dy), dx, dy))
vectors.sort()
short, long, diagonal = vectors
if not (
close(short[0], 30.0)
and close(long[0], 50.0)
and close(diagonal[0], math.hypot(30.0, 50.0))
):
return None
dot = short[1] * long[1] + short[2] * long[2]
if abs(dot) > 30.0 * 50.0 * 0.02:
return None
long_axis = (long[1] / long[0], long[2] / long[0])
short_axis = (short[1] / short[0], short[2] / short[0])
return center, long_axis, short_axis
def _project(point, center, long_axis, short_axis):
dx, dy = point[0] - center[0], point[1] - center[1]
return (
dx * long_axis[0] + dy * long_axis[1],
dx * short_axis[0] + dy * short_axis[1],
)
def _vertical_plunge(record) -> bool:
if record["code"] != 1:
return False
start, end = record["start"], record["end"]
return (
None not in (start["x"], start["y"], start["z"], end["x"], end["y"], end["z"])
and close(start["x"], end["x"])
and close(start["y"], end["y"])
and float(end["z"]) < float(start["z"]) - 0.5
)
def validate(path: Path) -> bool:
if not path.is_file() or path.stat().st_size < 500:
return False
src = path.read_text(encoding="utf-8", errors="ignore")
_raw_lines, tools, records, flags = parse_program(src)
if len(tools) < 2 or not all(flags.values()):
return False
drill_candidates = []
for tool in tools:
visits = [
record
for record in records
if record["tool"] == tool
and record["end"]["z"] is not None
and (record["code"] in {81, 83} or _vertical_plunge(record))
]
points = _unique_points(visits)
frame = _drill_frame(points)
if frame is not None:
drill_candidates.append((min(float(record["end"]["z"]) for record in visits), tool, visits, frame))
if not drill_candidates:
return False
drill_z, drill_tool, drill_records, frame = min(drill_candidates)
center, long_axis, short_axis = frame
pocket_tools = []
for tool in tools:
if tool == drill_tool:
continue
pocket_cuts = [
record
for record in records
if record["tool"] == tool
and record["code"] in {1, 2, 3}
and xy_changed(record)
and record["end"]["z"] is not None
]
if not pocket_cuts:
continue
pocket_z = min(float(record["end"]["z"]) for record in pocket_cuts)
deep = [record for record in pocket_cuts if close(record["end"]["z"], pocket_z)]
if len(deep) < 10:
continue
projected = [
_project(
(float(record["end"]["x"]), float(record["end"]["y"])),
center,
long_axis,
short_axis,
)
for record in deep
]
longs = [point[0] for point in projected]
shorts = [point[1] for point in projected]
if max(longs) - min(longs) < 30.0 or max(shorts) - min(shorts) < 12.0:
continue
long_tracks = {round(value, 1) for value in longs}
short_tracks = {round(value, 1) for value in shorts}
if max(len(long_tracks), len(short_tracks)) < 4:
continue
if any(abs(long) > 21.5 or abs(short) > 12.5 for long, short in projected):
continue
if not all(
any(
(long >= 0) == long_positive and (short >= 0) == short_positive
for long, short in projected
)
for long_positive in (False, True)
for short_positive in (False, True)
):
continue
if not 6.0 <= pocket_z - drill_z <= 11.0:
continue
pocket_tools.append(tool)
if not pocket_tools:
return False
if any(
record["code"] == 83
and "q" in record["explicit"]
and record["explicit"]["q"] <= 0
for record in drill_records
):
return False
return True
def main() -> bool:
return no_bypass_files(TARGET) and validate(TARGET / OUTPUT)
if __name__ == "__main__":
try:
result = main()
except Exception:
result = False
print("True" if result else "False")
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