libextractor - meta-information extraction library 1.0.0

       extract  was  originally  written  by  Christian  Grothoff  <christian@grothoff.org>  and  Vidyut Samanta
       <vids@cs.ucla.edu>. Use <libextractor@gnu.org> to contact the current maintainer(s).

       You can obtain the original author's latest version from http://www.gnu.org/software/libextractor/.

GNU libextractor 1.0.0                            Sept 4, 2012                                   LIBEXTRACTOR(3)

       A couple of file-formats (on the order of 10^3) are not recognized...

       GNU  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 dozens of plugins that  can  be
       used to obtain meta data from common file-types.  If you want to write your own plugin for some filetype,
       all you need to do is write a little library that implements a single method with this signature:

        voidEXTRACTOR_XXX_extract_method(structEXTRACTOR_ExtractContext*ec);ec  contains  function  pointers  for  reading, seeking, getting the overall file size and returning meta
       data.  There is also a field with options for the plugin.  New plugins will be automatically located  and
       used    once   they   are   installed   in   the   respective   directory   (typically   something   like
       /usr/lib/libextractor/).

       The application extract gives an example how to use libextractor.

       The basic use of libextractor is to load the plugins (for  example  with  EXTRACTOR_plugin_add_defaults),
       then  to  extract  the  keyword  list  using  EXTRACTOR_extract,  and finally unloading the plugins (with
       EXTRACTOR_plugin_remove_all).

       Textual meta data obtained from libextractor is supposed to be UTF-8 encoded  if  the  text  encoding  is
       known.  Plugins are supposed to convert meta-data to UTF-8 if necessary.    The EXTRACTOR_meta_data_print
       function converts the UTF-8 keywords to the character set from the current locale before printing them.

       libextractor is released under the GPL and a GNU package (http://www.gnu.org/).

       libextractor - meta-information extraction library 1.0.0

extract(1)

#include<extractor.h>constchar*EXTRACTOR_metatype_to_string(enumEXTRACTOR_MetaTypetype);constchar*EXTRACTOR_metatype_to_description(enumEXTRACTOR_MetaTypetype);enumEXTRACTOR_MetaTypeEXTRACTOR_metatype_get_max(void);structEXTRACTOR_PluginList*EXTRACTOR_plugin_add_defaults(enumEXTRACTOR_Optionsflags);structEXTRACTOR_PluginList*EXTRACTOR_plugin_add(structEXTRACTOR_PluginList*prev,constchar*library,constchar*options,enumEXTRACTOR_Optionsflags);structEXTRACTOR_PluginList*EXTRACTOR_plugin_add_last(structEXTRACTOR_PluginList*prev,constchar*library,constchar*options,enumEXTRACTOR_Optionsflags);structEXTRACTOR_PluginList*EXTRACTOR_plugin_add_config(structEXTRACTOR_PluginList*prev,constchar*config,enumEXTRACTOR_Optionsflags);structEXTRACTOR_PluginList*EXTRACTOR_plugin_remove(structEXTRACTOR_PluginList*prev,constchar*library);voidEXTRACTOR_plugin_remove_all(structEXTRACTOR_PluginList*plugins);voidEXTRACTOR_extract(structEXTRACTOR_PluginList*plugins,constchar*filename,constvoid*data,size_tsize,EXTRACTOR_MetaDataProcessorproc,void*proc_cls);intEXTRACTOR_meta_data_print(void*handle,constchar*plugin_name,enumEXTRACTOR_MetaTypetype,enumEXTRACTOR_MetaFormatformat,constchar*data_mime_type,constchar*data,size_tdata_len);EXTRACTOR_VERSION