/usr/bin/presage_python_demo is in python-presage 0.9.1-2.1+b1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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##########
# Presage, an extensible predictive text entry system
# ------------------------------------------------------
#
# Copyright (C) 2008 Matteo Vescovi <matteo.vescovi@yahoo.co.uk>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import sys
import getopt
PROGRAM_NAME = 'presage_python_demo'
config = None
suggestions = None
def disclaimer():
print """
Presage python demo
-----------------------
This program is intended as a demonstration of Presage ONLY.
The Presage project aims to provide an intelligent predictive text
entry platform.
Its intent is NOT to provide a predictive text entry user interface.
Think of Presage as the predictive backend that sits behind a shiny
user interface and does all the predictive heavy lifting.
"""
def print_version():
print """
%s (%s) version %s
Copyright (C) 2004 Matteo Vescovi.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE,
to the extent permitted by law.
""" % (PROGRAM_NAME, 'presage', '0.9.1')
def print_usage():
print """
Usage: %s [OPTION]...
At the prompt, type in some text. Hit enter to generate a prediction.
Any text input is valid, including no text, a single character, or a long string.
-c, --config CONFIG use config file CONFIG
-s, --suggestions N set prediction size to N suggestions
-h, --help display this help and exit
-v, --version output version information and exit
Direct your bug reports to: %s
""" % (PROGRAM_NAME, 'matteo.vescovi@yahoo.co.uk')
def parse_cmd_line_args():
global config
global suggestions
short_options = "c:s:hv"
long_options = ["config=", "suggestions=", "help", "version"]
try:
opts, args = getopt.getopt(sys.argv[1:], short_options, long_options)
except getopt.GetoptError, err:
print str(err)
sys.exit(1)
for opt, arg in opts:
if opt in ('-v', '--version'):
print_version()
sys.exit()
elif opt in ('-h', '--help'):
print_usage()
sys.exit()
elif opt in ('-c', '--config'):
config = arg
elif opt in ('-s', '--suggestions'):
suggestions = arg
def main():
try:
import presage
except ImportError, e:
print '''
Error: failed to import module presage.
Check that presage python binding is properly installed (if
installed in a non-standard location, please set PYTHONPATH
accordingly).
Check that presage library is properly installed (if installed in a
non-standard location, please set LD_LIBRARY_PATH (PATH, LIBPATH)
accordingly).
'''
print e
sys.exit(1)
try:
# Define and create PresageCallback object
class DemoCallback(presage.PresageCallback):
def __init__(self):
presage.PresageCallback.__init__(self)
self.buffer = ''
def get_past_stream(self):
return self.buffer
def get_future_stream(self):
return ''
# Presage owns callback, so we create it and disown it
callback = DemoCallback().__disown__()
# Create Presage object
if config:
prsg = presage.Presage(callback, config)
else:
prsg = presage.Presage(callback)
if suggestions:
prsg.config('Presage.Selector.SUGGESTIONS', suggestions)
print "Enter text at the prompt (press enter on empty line to exit):"
str = None
while str != "":
str = raw_input("> ")
callback.buffer += str
print prsg.predict()
# Destroy Presage object
del prsg
except presage.PresageException,ex:
print ex.what()
sys.exit(1)
print "Goodbye"
if __name__ == '__main__':
parse_cmd_line_args()
disclaimer()
main()
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