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aaronmk
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#!/usr/bin/env python
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aaronmk
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# Transforms a map spreadsheet to use a different root.
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# Warning: ch_root is usually *not* an idempotent operation.
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aaronmk
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import csv
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import os.path
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aaronmk
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import re
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aaronmk
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import sys
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sys.path.append(os.path.dirname(__file__)+"/../lib")
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import maps
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aaronmk
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import opts
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def main():
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aaronmk
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# Get config from env vars
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aaronmk
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env_names = []
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print_usage_ref = [False]
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def on_unset(e): print_usage_ref[0] = True
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configs = [opts.get_env_vars(['in_root', 'out_root'], col, env_names,
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on_unset) for col in ['left', 'right']]
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if print_usage_ref[0]: raise SystemExit(
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'Usage: '+opts.env_usage(env_names)+' '+sys.argv[0]+' <in_map >out_map')
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# Transform map
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reader = csv.reader(sys.stdin)
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writer = csv.writer(sys.stdout)
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aaronmk
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cols = reader.next()
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for i in xrange(len(configs)):
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config = configs[i]
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cols[i], config['root'] = maps.col_info(cols[i])[:2]
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if config['root'] != None: cols[i] += ':'+config['out_root']
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else:
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assert config['out_root'] == ''
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config['root'] = ''
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config['in_root_re'] = r'^'+re.escape(config['in_root'])+r'(?=\b|\W|$)'
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writer.writerow(cols)
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for row in reader:
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def sub(i):
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row[i], n = re.subn(configs[i]['in_root_re'], r'',
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configs[i]['root']+row[i])
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aaronmk
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return n > 0
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if row[0] != '' and sub(0) and (row[1] == '' or sub(1)):
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aaronmk
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writer.writerow(row)
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main()
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