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93e1459641
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Drop changes for PEP 4 following python tools] Signed-off-by: Tom Rini <trini@ti.com>
133 lines
4.3 KiB
Python
Executable File
133 lines
4.3 KiB
Python
Executable File
#! /usr/bin/python
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########################################################################
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#
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# reorder and reformat a file in columns
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#
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# this utility takes lines from its standard input and reproduces them,
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# partially reordered and reformatted, on its standard output.
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#
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# It has the same effect as a 'sort | column -t', with the exception
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# that empty lines, as well as lines which start with a '#' sign, are
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# not affected, i.e. they keep their position and formatting, and act
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# as separators, i.e. the parts before and after them are each sorted
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# separately (but overall field widths are computed across the whole
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# input).
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#
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# Options:
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# -i:
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# --ignore-case:
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# Do not consider case when sorting.
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# -d:
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# --default:
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# What to chage empty fields to.
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# -s <N>:
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# --split=<N>:
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# Treat only the first N whitespace sequences as separators.
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# line content after the Nth separator will count as only one
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# field even if it contains whitespace.
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# Example : '-s 2' causes input 'a b c d e' to be split into
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# three fields, 'a', 'b', and 'c d e'.
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#
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# boards.cfg requires -ids 6.
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#
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########################################################################
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import sys, getopt, locale
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# ensure we sort using the C locale.
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locale.setlocale(locale.LC_ALL, 'C')
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# check options
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maxsplit = 0
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ignore_case = 0
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default_field =''
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try:
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opts, args = getopt.getopt(sys.argv[1:], "id:s:",
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["ignore-case","default","split="])
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except getopt.GetoptError as err:
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print str(err) # will print something like "option -a not recognized"
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sys.exit(2)
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for o, a in opts:
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if o in ("-s", "--split"):
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maxsplit = eval(a)
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elif o in ("-i", "--ignore-case"):
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ignore_case = 1
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elif o in ("-d", "--default"):
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default_field = a
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else:
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assert False, "unhandled option"
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# collect all lines from standard input and, for the ones which must be
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# reformatted and sorted, count their fields and compute each field's
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# maximum size
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input_lines = []
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field_width = []
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for line in sys.stdin:
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# remove final end of line
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input_line = line.strip('\n')
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if (len(input_line)>0) and (input_line[0] != '#'):
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# sortable line: split into fields
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fields = input_line.split(None,maxsplit)
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# if there are new fields, top up field_widths
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for f in range(len(field_width), len(fields)):
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field_width.append(0)
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# compute the maximum witdh of each field
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for f in range(len(fields)):
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field_width[f] = max(field_width[f],len(fields[f]))
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# collect the line for next stage
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input_lines.append(input_line)
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# run through collected input lines, collect the ones which must be
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# reformatted and sorted, and whenever a non-reformattable, non-sortable
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# line is met, sort the collected lines before it and append them to the
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# output lines, then add the non-sortable line too.
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output_lines = []
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sortable_lines = []
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for input_line in input_lines:
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if (len(input_line)>0) and (input_line[0] != '#'):
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# this line should be reformatted and sorted
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input_fields = input_line.split(None,maxsplit)
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output_fields = [];
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# reformat each field to this field's column width
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for f in range(len(input_fields)):
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output_field = input_fields[f];
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output_fields.append(output_field.ljust(field_width[f]))
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# any missing field is set to default if it exists
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if default_field != '':
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for f in range(len(input_fields),len(field_width)):
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output_fields.append(default_field.ljust(field_width[f]))
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# join fields using two spaces, like column -t would
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output_line = ' '.join(output_fields);
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# collect line for later
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sortable_lines.append(output_line)
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else:
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# this line is non-sortable
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# sort collected sortable lines
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if ignore_case!=0:
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sortable_lines.sort(key=lambda x: str.lower(locale.strxfrm(x)))
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else:
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sortable_lines.sort(key=lambda x: locale.strxfrm(x))
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# append sortable lines to the final output
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output_lines.extend(sortable_lines)
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sortable_lines = []
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# append non-sortable line to the final output
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output_lines.append(input_line)
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# maybe we had sortable lines pending, so append them to the final output
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if ignore_case!=0:
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sortable_lines.sort(key=lambda x: str.lower(locale.strxfrm(x)))
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else:
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sortable_lines.sort(key=lambda x: locale.strxfrm(x))
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output_lines.extend(sortable_lines)
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# run through output lines and print them, except rightmost whitespace
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for output_line in output_lines:
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print output_line.rstrip()
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