Convert plain text to XP format used by REXPaint

txt2xp.py

#
# translate a plain text file into the REXPaint file format
import argparse
import sys
import struct
import gzip

def doit(INFILE, OUTFILE):
    fp = open(INFILE)
    lines = fp.readlines()
    fp.close()

    lines = [list(l.rstrip()) for l in lines]

    width = len(lines[0])
    height = len(lines)

    with gzip.open(OUTFILE, 'wb') as fp:
        fp.write(struct.pack('i', 1))
        fp.write(struct.pack('i', 1))
        fp.write(struct.pack('i', width))
        fp.write(struct.pack('i', height))
        for j in range(width):
            for i in range(height):
                ch = lines[i][j]
                fp.write(struct.pack('i', ord(ch)))
                fp.write(struct.pack('BBBBBB', 255,255,255,0,0,0))

if __name__ == '__main__':
    parser = argparse.ArgumentParser(description="Convert text file to REXpaint")
    parser.add_argument('infile', help='Input text file')
    parser.add_argument('outfile', help='Output xp file')
    args = parser.parse_args()

    doit(args.infile, args.outfile)