commit ab3e483ac4685a3965892a07734b643fda0222c7
parent 2445d05d2d4e13818928b2c02cfca4d5535cff66
Author: Christian Grothoff <christian@grothoff.org>
Date: Sun, 28 May 2006 18:34:19 +0000
mv
Diffstat:
| D | src/main/Extractor.py | | | 112 | ------------------------------------------------------------------------------- |
1 file changed, 0 insertions(+), 112 deletions(-)
diff --git a/src/main/Extractor.py b/src/main/Extractor.py
@@ -1,112 +0,0 @@
-"""Extractor.py
-
- This file is part of libextractor.
- (C) 2002, 2003, 2004, 2005 Vidyut Samanta and Christian Grothoff
-
- libextractor 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, or (at your
- option) any later version.
-
- libextractor 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 libextractor; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-
-libextractor is a simple library for keyword extraction. libextractor
-does not support all formats but supports a simple plugging mechanism
-such that you can quickly add extractors for additional formats, even
-without recompiling libextractor. libextractor typically ships with a
-dozen helper-libraries that can be used to obtain keywords from common
-file-types.
-
-libextractor is a part of the GNU project (http://www.gnu.org/).
-"""
-
-import _extractor
-
-__all__ = ["Extractor","Keyword"]
-__author__ = "Christian Grothoff, Heiko Wundram"
-__version__ = "0.5.0"
-__license__ = "GPL"
-__date__ = "5/5/2005"
-
-class Extractor(object):
- """
- Main class for extracting meta-data with GNU libextractor.
-
- You may create multiple instances of Extractor to use
- different sets of plugins. Initially each Extractor
- will start with the default set of plugins.
-
- Use the extract method to obtain keywords from a file.
-
- Use the load and unload methods to change the list of
- plugins that should be used.
- """
-
- def __init__(self):
- self.__plugins = _extractor.loadDefaultLibraries()
- def __del__(self):
- _extractor.removeAll(self.__plugins)
- def load(self,plugs):
- """
- Load certain plugins. Invoke with a string with the names
- of the plugins that should be loaded. For example,
-
- 'libextractor_filename:-libextractor_split'
-
- will prepend the extractor that just adds the filename as a
- keyword and append (runs last) the extractor that splits
- keywords at whitespaces and punctuations.
-
- No errors are reported if any of the listed plugins are not
- found.
- """
- self.__plugins = _extractor.load(self.__plugins, plugs)
- return None
- def unload(self,plugs):
- """
- Unload a plugin. Pass the name of the plugin that is to
- be unloaded. Only one plugin can be unloaded at a time.
- For example,
-
- 'libextractor_pdf'
-
- unloads the PDF extractor (if loaded). No errors are
- reported if no matching plugin is found.
- """
- self.__plugins = _extractor.unload(self.__plugins, plugs)
- return None
- def extract(self,filename):
- """Pass a filename to extract keywords.
-
- This function returns a list of Keyword objects.
- If the file cannot be opened or cannot be found,
- the list will be empty. The list can also be empty
- if no metadata was found for the file.
- """
- return _extractor.extract(self.__plugins, filename, Keyword)
-
-class Keyword(object):
- def __init__(self,type,value):
- self.__type = type
- self.__value = value.decode("utf-8")
- def __repr__(self):
- return u"%s(%i,%r)" % (self.__class__.__name__,self.__type,self.__value)
- def __str__(self):
- return u"%s: %s" % (self.__getType(), self.__getValue())
- def __getType(self):
- return _extractor.getKeywordTypeAsString(self.__type).decode("utf-8")
- def __getValue(self):
- return self.__value
- def __hash__(self):
- return hash(self.__value)+self.__type
-
- type = property(__getType,None,None,"Type of the Keyword (i.e. author, title)")
- value = property(__getValue,None,None,"Value of the Keyword (i.e. 'The GNU GPL')")
