/usr/include/libots-1/ots/libots.h is in libots-dev 0.5.0-2.3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* libots.h
*
* Copyright (C) 2003 Nadav Rotem <nadav256@hotmail.com>
*
* 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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef HAVE_LIBOTS_H
#define HAVE_LIBOTS_H
#include <glib.h>
G_BEGIN_DECLS
typedef struct
{ /* the Term Frequency data structure */
char* word;
double tf; /*Also used for TF*/
} OtsWordTF;
typedef struct
{
/*a GList of char* */
GList *RemovePre; /* (a|b) replace string a with b */
GList *RemovePost;
GList *step1_pre;
GList *step1_post;
GList *synonyms;
GList *manual;
GList *ParserBreak;
GList *ParserDontBreak;
/*to be implemented*/
GList *ReplaceChars;
} OtsStemRule;
typedef struct
{
GList *words; /* a Glist of words (char*) */
glong score; /*score set by the grader*/
gboolean selected; /*is selected?*/
gint wc; /*word count*/
void *user_data; /*pointer to the original sentence , or serial number maybe*/
} OtsSentence;
typedef struct
{
GList *lines; /* a Glist of sentences (struct Sentence) */
gint lineCount; /*lines in the text*/
char *title; /*title , auto generated*/
OtsStemRule *stem; /*stemming & parsing rules*/
/*Term Frequency grader*/
GList *tf_terms;
GList *idf_terms;
/*Term Count grader*/
GList *dict; /* dictionary from xml*/
GList *wordStat; /* a wordlist of all words in the article and their occ */
GList *ImpWords; /*important words - for term count grader*/
} OtsArticle;
OtsArticle *ots_new_article (void);
void ots_free_article (OtsArticle *art);
/*parser*/
void ots_parse_file (FILE * stream, OtsArticle * Doc); /*file input */
void ots_parse_stream(const unsigned char *utf8 , size_t len ,OtsArticle *Doc); /*parse unicode stream*/
OtsSentence *ots_append_line (OtsArticle * Doc);
void ots_append_word (OtsSentence * aLine,unsigned const char *aWord);
void ots_add_wordstat (OtsArticle * Doc,unsigned const char *wordString);
/*dictionary*/
gboolean ots_load_xml_dictionary (OtsArticle * Doc,unsigned const char *name);
int ots_get_article_word_count (const OtsArticle * Doc);
/*grader*/
void ots_highlight_doc (OtsArticle * Doc, int percent); /*example: 20%*/
void ots_highlight_doc_lines (OtsArticle * Doc, int lines); /*example: 10 lines*/
void ots_highlight_doc_words (OtsArticle * Doc, int words); /*example: 50 words*/
void ots_grade_doc (OtsArticle * Doc);
void ots_free_OtsWordTF(OtsWordTF *obj); /*todo: put in .h file*/
OtsWordTF* ots_new_OtsWordTF(const char* word,const double idf);
/*HTML output*/
void ots_print_HTML (FILE * stream, const OtsArticle * Doc);
unsigned char *ots_get_doc_HTML (const OtsArticle * Doc, size_t * out_len);
/*TEXT output*/
void ots_print_doc (FILE * stream, const OtsArticle * Doc);
unsigned char *ots_get_doc_text (const OtsArticle * Doc, size_t * out_len);
/*Plugin writing*/
unsigned char* ots_get_line_text (const OtsSentence *aLine, gboolean only_if_selected, size_t *out_size);
gboolean ots_is_line_selected(const OtsSentence *aLine);
/*Stemm support*/
OtsStemRule *new_stem_rule(void);
void free_stem_rule (OtsStemRule *rule);
unsigned char * ots_stem_strip (unsigned const char * aWord, const OtsStemRule *rule); /*returns newly allocated string with the root of the word*/
unsigned char *ots_stem_format (unsigned const char *aWord, const OtsStemRule * rule); /*Remove leading spaces, comas, colons, etc. */
/*Relations between texts*/
/*Returns the number of topics that two blocks of text share*/
int ots_text_relations(
const unsigned char *text1,const unsigned char *lang_code1,
const unsigned char *text2,const unsigned char *lang_code2,const int topic_num);
/*For a given text, return the list of the topics*/
char* ots_text_topics(const unsigned char *text,const unsigned char *lang_code,int topic_num);
/*For a given text, return the list of the stemmed topics*/
GList* ots_text_stem_list(const unsigned char *text,const unsigned char *lang_code,int topic_num);
/*Gives a score on the relations between two lists of topics; simmilar to the inner product*/
int ots_topic_list_score(const GList *topic_list1,const GList *topic_list2);
G_END_DECLS
#endif /* HAVE_LIBOTS_H */
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