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1 #!/usr/bin/env python
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2
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3 # rcg.py -- regex colored grep
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4 # Copyright (C) 2010 by Paulo Ang (pbba13@gmail.com)
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5 #
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6 # This program is free software: you can redistribute it and/or modify
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7 # it under the terms of the GNU General Public License as published by
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8 # the Free Software Foundation, either version 3 of the License, or
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9 # (at your option) any later version.
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10 #
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11 # This program is distributed in the hope that it will be useful,
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 # GNU General Public License for more details.
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15 #
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16 # You should have received a copy of the GNU General Public License
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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18
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19
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20 import sys
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21 import re
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22 import getopt
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23
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24 #x = "\x1B[1;31;49m" + x
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25 #x = START + c["white"][0] + ";" + c["blue"][1] + END + x + CLEAR
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26
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27 START = "\x1B["
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28 BOLD = "1;"
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29 END = "m"
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30 CLEAR = START + "0" + END
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31
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32 c = {
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33 # color : (fg, bg)
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34 "black" : ("30", "40"),
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35 "red" : ("31", "41"),
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36 "green" : ("32", "42"),
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37 "brown" : ("33", "43"),
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38 "blue" : ("34", "44"),
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39 "magenta" : ("35", "45"),
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40 "cyan" : ("36", "46"),
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41 "white" : ("37", "47"),
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42 "default" : ("39", "49"),
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43 }
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44
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45 bold = False
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46 fg = None
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47 bg = None
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48 colorLine = False
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49
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50 (optvals, args) = getopt.getopt(sys.argv[1:], "f:b:Bl")
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51
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52 for (opt, val) in optvals:
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53 if opt == '-B':
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54 bold = True
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55 elif opt == '-f':
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56 fg = val
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57 elif opt == '-b':
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58 bg = val
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59 elif opt == '-l':
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60 colorLine = True
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61
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62 if len(args) > 0:
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63 for line in sys.stdin:
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64 repl = START
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65 if bold:
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66 repl += BOLD
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67 if fg is not None:
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68 repl += c[fg][0]
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69 if bg is not None:
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70 repl += ';' + c[bg][1]
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71 repl += END + r'\1' + CLEAR
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72
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73 x = line
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74
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75 if colorLine == False:
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76 x = re.sub(r'(' + args[0] + r')', repl, line)
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77 else:
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78 if re.search(args[0], line) != None:
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79 last_char = line[-1]
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80 x = repl.replace(r'\1', line[:-1])
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81 x += last_char
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82
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83 sys.stdout.write(x)
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84 sys.stdout.flush()
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