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# Page text supplied in either specified file or stdin.
if len(args) == 1:
with open(args[0], 'r') as f:
fd = f.read()
else:
fd = sys.stdin.read()
Pager(fd, delay=isdelay).Page()
if __name__ == '__main__':
help_msg = '%s [--help] [--size] [--nodelay] [input_file]\n' % sys.argv[0]
try:
sys.exit(main())
except Usage as err:
print(err, file=sys.stderr)
print('For help use --help', file=sys.stderr)
sys.exit(2)
if opt in ('-h', '--help'):
print(__doc__)
print(help_msg)
return 0
isdelay = False
for opt, _ in opts:
# Prints the size of the terminal and returns.
# Mutually exclusive to the paging of text and overrides that behaviour.
if opt in ('-s', '--size'):
print('Length: %d, Width: %d' % TerminalSize())
return 0
elif opt in ('-d', '--delay'):
isdelay = True
else:
raise Usage('Invalid arguments.')
# Page text supplied in either specified file or stdin.
if len(args) == 1:
with open(args[0], 'r') as f:
fd = f.read()
else:
fd = sys.stdin.read()
Pager(fd, delay=isdelay).Page()
def main(argv=None):
"""Routine to page text or determine window size via command line."""
if argv is None:
argv = sys.argv
try:
opts, args = getopt.getopt(argv[1:], 'dhs', ['nodelay', 'help', 'size'])
except getopt.error as msg:
raise Usage(msg)
# Print usage and return, regardless of presence of other args.
for opt, _ in opts:
if opt in ('-h', '--help'):
print(__doc__)
print(help_msg)
return 0
isdelay = False
for opt, _ in opts:
# Prints the size of the terminal and returns.
# Mutually exclusive to the paging of text and overrides that behaviour.
if opt in ('-s', '--size'):
print('Length: %d, Width: %d' % TerminalSize())
return 0
elif opt in ('-d', '--delay'):