import sys
data = open(r'C:\git\bt411\content\BTL4.RES', 'rb').read()
low = data.lower()
for name in [b'blhd.bgf', b'blhdbr', b'blh_tor', b'blhd_', b'blhdlarm', b'blhdlule', b'blhdldle', b'blhdlfot']:
    i = 0
    hits = []
    while True:
        i = low.find(name.lower(), i)
        if i < 0:
            break
        hits.append(i)
        i += 1
    print(name.decode(), 'x', len(hits), hits[:6])
# context around blhd.bgf hits
i = low.find(b'blhd.bgf')
if i >= 0:
    print(repr(data[i-160:i+40]))