from sys import argv, exit
import re
if len(argv) < 2:
    print("mising command-line argument")
    exit(1)

pattern1 = re.compile(r'AGAT')
pattern2 = re.compile(r'AATG')
pattern3 = re.compile(r'TATC')
npattern = re.compile(r'name', re.IGNORECASE) # find all cases of name
with open(argv[1],"r") as file:
    contents = file.read()
    i = 0
    j = 4
    while contents[i:j]:
            #this works.... save it... prints one string of 4 per line
        if (contents[i:j] == npattern):
            {
                i += 4
                j += 4
            }
        else:
            print(contents[i:j])
            i += 4
            j += 4

    #while contents[i:j]:
        #if contents[i:j] == contents[i+4:j+4]:
            #index = 1
            #mcount = 1
            #while contents[i:j] == contents[i+4*index:j+4*index]:
                #i += 1
                #j += 1
                #mcount += 1
                #index += 1
            #print(str(contents[i:j]) + " count is: " + mcount)
            #mcount=0
    #i = 0
    #j = 4
    #while contents[i:j]:
        #pattern = re.compile(contents[i:j]) #pattern = re.compile(pattern?)
        #if pattern == contents[i+4:j+4]:
            #matches = pattern.finditer(f'{contents}')
		# no longer commented out
            #for match in matches:
                #mcount += 1
        #j += 1