annotate textshaper/main.py @ 34:88a69d587326

round1 of commands
author Jeff Hammel <k0scist@gmail.com>
date Sun, 02 Mar 2014 15:33:07 -0800
parents 929a5e97af3e
children 55e0579e2143
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1 #!/usr/bin/env python
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2 # -*- coding: utf-8 -*-
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3
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4 """
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5 package to shape text blocks
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6 """
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7
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8 import argparse
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9 import os
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10 import subprocess
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11 import sys
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12 import time
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13 from .commands import Commands
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14 from .indent import deindent, indent
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15 from which import which
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17 HR = '--'
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19 def info(content):
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20 """gathers info about the content and returns a dict"""
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21
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22 lines = content.splitlines()
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23 return {'lines': len(lines),
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24 'chars': len(content),
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25 'columns': max([len(line) for line in lines])}
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28 def display(content, keys=('lines', 'chars', 'columns'), hr=HR):
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29 """displays the content"""
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30 print (content)
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31 if keys:
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32 _info = info(content)
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33 print (hr)
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34 print ('; '.join(['{}: {}'.format(key, _info[key])
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35 for key in keys]))
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36
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37 def add_commands():
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38 # TODO: do this dynamically
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39 commands = Commands()
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40 commands.add(indent, 'i')
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41 commands.add(deindent, 'd')
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42 return commands
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43
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44 def add_options(parser):
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45 """add options to the parser instance"""
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46
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47 parser.add_argument('-f', '--file', dest='input',
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48 type=argparse.FileType('r'), default=sys.stdin,
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49 help="file to read from [DEFAULT: stdin]")
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50 parser.add_argument('-n', '--no-strip', dest='strip',
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51 action='store_false', default=True,
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52 help="do not strip whitespace before processing")
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54 if which('xclip'): # TODO: support e.g. xsel or python native
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55 parser.add_argument('-c', '-o', '--clip', '--copy', dest='copy_to_clipboard',
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56 action='store_true', default=False,
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57 help="copy to clipboard")
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58 parser.add_argument('-i', dest='input_from_clipboard',
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59 action='store_true', default=False,
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60 help="copy from clipboard")
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61
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63 def main(args=sys.argv[1:]):
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64 """CLI"""
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65
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66 # TODO: read ~/.textshaper
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67
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68 # parse command line options
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69 parser = argparse.ArgumentParser(description=__doc__)
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70 add_options(parser)
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71 options = parser.parse_args(args)
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73 # read input
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74 if getattr(options, 'input_from_clipboard', False):
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75 content = subprocess.check_output(['xclip', '-o'])
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76 else:
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77 content = options.input.read()
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78
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79 # get formatting commands
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80 commands = add_commands()
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81
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82 # pre-process output
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83 if options.strip:
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84 content = content.strip()
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85
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86 # main display loop
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87 # TODO: read input + commands
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88 try:
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89 while True:
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90 # print formatted content
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91 display(content)
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92 print (commands.display())
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93 choice = raw_input('? ')
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94 new_content = commands(choice, content)
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95 if new_content is None:
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96 print ("Choice '{}' not recognized".format(choice))
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97 continue
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98 content = new_content
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99
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100 if options.copy_to_clipboard:
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101 # copy content to X clipboard
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102 process = subprocess.Popen(['xclip', '-i'], stdin=subprocess.PIPE)
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103 _, _ = process.communicate(content)
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104 except KeyboardInterrupt:
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105 sys.exit(0)
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106
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107 if __name__ == '__main__':
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108 main()
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