sykora / tablefmt

A text filter to format text into a table

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Added basic option parsing.
sykora (author)
Sat Oct 18 02:23:25 -0700 2008
commit  54efebbda89c207eddbadf2b0f8ce7fea99b26d6
tree    01f66c6b8338c21c0df52e0a0e7d8d4b5a855447
parent  730867b66938574cc2a44a0bd19dd4ff478c9150
tablefmt / tablefmt.py
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29f06ede » sykora 2008-10-18 Rearranged code, made more ... 1 # Table formatting filter.
2 # P.C. Shyamshankar <sykora@lucentbeing.com>
3 # http://lucentbeing.com
4
54efebbd » sykora 2008-10-18 Added basic option parsing. 5 from optparse import OptionParser
6 from sys import argv
29f06ede » sykora 2008-10-18 Rearranged code, made more ... 7
8 def formatter(lines, inputDelimiter, outputDelimiter) :
54efebbd » sykora 2008-10-18 Added basic option parsing. 9 # Split lines based on inputDelimiter.
10
11 lines = [filter(None, line.split(inputDelimiter)) for line in lines]
12
13
29f06ede » sykora 2008-10-18 Rearranged code, made more ... 14 # Assuming all rows are the same length,
15 numColumns = len(lines[0])
16 widths = []
17
18 # Size of column = size of the largest entry in that column, + 1
19 # TODO: Add delimiter support.
20 for i in range(numColumns) :
21 widths.append(max(len(line[i]) for line in lines))
22
23 formatList = ["%%%ds"] * numColumns
24
25 # There is probably a more efficient way (Time and Space) of doing this.
26 output = []
27 for i in range(len(lines)) :
28 outputLine = formatList[:]
29 outputLine = [((s % widths[j]) % lines[i][j])
30 for j, s in enumerate(formatList)]
31 output.append(outputDelimiter.join(outputLine))
32
33 return output
34
54efebbd » sykora 2008-10-18 Added basic option parsing. 35 def parseOptions(argv) :
36 parser = OptionParser()
37
38 parser.add_option('-i', '--input-delimiter',
39 action = 'store',
40 type = 'string',
41 dest = 'inputDelimiter',
42 default = ' ')
43
44 parser.add_option('-o', '--output-delimiter',
45 action = 'store',
46 type = 'string',
47 dest = 'outputDelimiter',
48 default = ' ')
49
50 options, args = parser.parse_args(argv[1:])
51
52 return options
53
54
29f06ede » sykora 2008-10-18 Rearranged code, made more ... 55 def main() :
54efebbd » sykora 2008-10-18 Added basic option parsing. 56 options = parseOptions(argv)
29f06ede » sykora 2008-10-18 Rearranged code, made more ... 57 # Get input.
58 lines = []
59
60 try :
61 line = raw_input()
62 except EOFError :
63 return
64
65 while True:
54efebbd » sykora 2008-10-18 Added basic option parsing. 66 lines.append(line)
29f06ede » sykora 2008-10-18 Rearranged code, made more ... 67 try :
68 line = raw_input()
69 except EOFError :
70 break
71
54efebbd » sykora 2008-10-18 Added basic option parsing. 72 formattedLines = formatter(lines,
73 options.inputDelimiter,
74 options.outputDelimiter)
29f06ede » sykora 2008-10-18 Rearranged code, made more ... 75
76 for line in formattedLines :
77 print line
78
79 if __name__ == '__main__' :
80 main()
81