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#!/usr/bin/python3
"""
Read some whitespace separated data from stdin and pretty print it so that
the columns line up.
"""
import sys
def main():
pad = "\t"
align = None
if len(sys.argv) > 1:
pad = " " * int(sys.argv[1])
if len(sys.argv) > 2:
align = sys.argv[2]
rows = [line.split() for line in sys.stdin]
print_tabular(rows, pad, align)
def print_tabular(rows, pad, align=None):
if len(rows) == 0:
return ""
lengths = [len(col) for col in rows[0]]
for row in rows[1:]:
for i in range(0, len(row)):
lengths[i] = max(lengths[i], len(row[i]))
rval = ""
for row in rows:
rval = ""
for i in range(0, len(row)):
if align and align[i] == "l":
rval += row[i].ljust(lengths[i])
else:
rval += row[i].rjust(lengths[i])
rval += pad
print(rval)
main()
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