#!/usr/bin/env python3
"""Compteur de profondeur (parentheses) par ligne, strings/comments maskees.
Usage: parencheck.py <fichier.java> [start] [end]
Exige FINAL: 0."""
import sys

path = sys.argv[1]
start = int(sys.argv[2]) if len(sys.argv) > 2 else 1
end = int(sys.argv[3]) if len(sys.argv) > 3 else None

with open(path) as f:
    lines = f.readlines()

depth = 0
in_block = False
for i, raw in enumerate(lines, 1):
    line = raw.rstrip("\n")
    masked = []
    j = 0
    in_str = False
    in_char = False
    while j < len(line):
        if in_block:
            if line[j:j+2] == "*/":
                in_block = False
                j += 2
            else:
                j += 1
            continue
        if in_str:
            if line[j] == "\\":
                j += 2
                continue
            if line[j] == '"':
                in_str = False
            j += 1
            continue
        if in_char:
            if line[j] == "\\":
                j += 2
                continue
            if line[j] == "'":
                in_char = False
            j += 1
            continue
        if line[j:j+2] == "//":
            break
        if line[j:j+2] == "/*":
            in_block = True
            j += 2
            continue
        if line[j] == '"':
            in_str = True
            j += 1
            continue
        if line[j] == "'":
            in_char = True
            j += 1
            continue
        masked.append(line[j])
        j += 1
    code = "".join(masked)
    opens = code.count("(") - code.count(")")
    depth += opens
    if (end is None or (start <= i <= end)) and (opens != 0 or "Commands.literal" in line
            or "dispatcher.register" in line or ".executes(" in line):
        print(f"{i:5d} d={depth:+3d} ({opens:+3d}) {line.strip()[:100]}")

print(f"FINAL: {depth}")