19 lines
731 B
Python
19 lines
731 B
Python
'''
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cat <<'EOF' > align_columns.dat
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Given$a$text$file$of$many$lines,$where$fields$within$a$line$
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are$delineated$by$a$single$'dollar'$character,$write$a$program
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that$aligns$each$column$of$fields$by$ensuring$that$words$in$each$
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column$are$separated$by$at$least$one$space.
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Further,$allow$for$each$word$in$a$column$to$be$either$left$
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justified,$right$justified,$or$center$justified$within$its$column.
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EOF
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'''
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for align in '<^>':
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rows = [ line.strip().split('$') for line in open('align_columns.dat') ]
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fmts = [ '{:%s%d}' % (align, max( len(row[i]) if i < len(row) else 0 for row in rows ))
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for i in range(max(map(len, rows))) ]
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for row in rows:
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print(' '.join(fmts).format(*(row + [''] * len(fmts))))
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print('')
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