lines=open('GAUGE/L4GAUGE.CFG',encoding='latin-1').read().split('\n')
# MechInit block extent from 4390
depth=0; opened=False; close=None
for i in range(4390,len(lines)+1):
    l=lines[i-1]
    for ch in l:
        if ch=='{': depth+=1; opened=True
        elif ch=='}': depth-=1
    if opened and depth==0: close=i; break
print("MechInit block: 4390 ..", close, "| prepEngr@4595 inside:", 4390<=4595<=(close or 0))
# structure between 4407 and 4600
print("--- lines 4408-4430 & around 4590-4600 ---")
for i in list(range(4408,4416))+list(range(4590,4600)):
    print(f"  {i}: {lines[i-1].strip()[:70]}")
# any nested braces / sub-blocks between 4407 and 4595?
d=0
for i in range(4390,4600):
    for ch in lines[i-1]:
        if ch=='{': d+=1
        elif ch=='}': d-=1
    if lines[i-1].strip().endswith('{') or lines[i-1].strip()=='}':
        print(f"  brace@{i} depth->{d}: {lines[i-1].strip()[:50]}")