How to join text files together horizontally-CodePudding

In my code i am using pygame and i am reading text files into maps. I am trying to create a long map that randomly joins my map segment text files together in a horizontal way to create a long map. How would i join multiple text files together and write the result to a new file.

Lets say text file 1 is equal to the below:

Lets say text file 2 is equal to the below:

And the result could look like this:

11111111111111111111
1000000001000011111
1000000001000000000
11111111111111111111

Thanks for the help and if anyone would like to check out my full project it is here

CodePudding user response：

This logic works when the number of lines in both files are same.

with open("file1") as file1, open("file2") as file2:
    file1_lines= file1.readlines()
    file2_lines = file2.readlines()
result = [line[0]   line[1] for line in zip(file1_lines, file2_lines)]
with open("outfile", "w") as outfile:
     outfile.write("\n".join(result))

CodePudding user response：

Input files: x.txt, y.txt
Output file: z.txt

Code

with open("x.txt") as xh, open('y.txt') as yh, open("z.txt","w") as zh:
    for x, y in zip(xh, yh):
        zh.write(x.rstrip()   y)

CodePudding user response：

var1 = """
    1111111111
    100000000
    100000000
    1111111111
    """
    var2 = """
    1111111111
    1000011111
    1000000000
    1111111111
    """
    var1 = [x.strip() for x in var1.split("\n") if x]
    var2 = [x.strip() for x in var2.split("\n") if x]

    for x, y in zip(var1, var2):
        print(f"{x}{y}")

CodePudding user response：

# Read files
f1 = open('file1.txt', 'r', encoding='utf-8')
f2 = open('file2.txt', 'r', encoding='utf-8')
# Read lines
lines1 = f1.readlines()
lines2 = f2.readlines()
# If len(file1) < len(file2) append file1 zeros and vice versa.
lines1.extend([0,] * (len(lines2) - len(lines1)))
lines2.extend([0,] * (len(lines1) - len(lines2)))
# remove \n from file1
lines1 = [x[:-2] for x in lines1]
# print result XD
print(''.join(list(map(lambda x: x[0]   "{0:1}".format(x[1]), zip(lines1, lines2)))))

CodePudding user response：

There are plenty of ways to do this. Here's another way:

filenames = (r"map1.txt", r"map2.txt")

# Each line from every file will be stored in a list as strings
lines = []
for filename in filenames:
    with open(filename) as f:
        for line_num, line in enumerate(f):
            # You cannot index into a list if it doesn't exist, so
            # you need to append to it first
            if line_num == len(lines):
                lines.append(line.strip())
            else:
                lines[line_num]  = line.strip()

# This transforms the list into a single string, with a newline between every item
map_str = "\n".join(line for line in lines)

print(map_str)

Output:

11111111111111111111
1000000001000011111
1000000001000000000
11111111111111111111

By the way, are you sure you don't need each row of the map to be the same length? Some are 10 while others are 9.