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#ifndef FRT_ANALYSIS_H
#define FRT_ANALYSIS_H
#ifdef __cplusplus
extern "C" {
#endif
#include "global.h"
#include "hash.h"
#include "symbol.h"
#include "multimapper.h"
#include <wchar.h>
/****************************************************************************
*
* FrtToken
*
****************************************************************************/
typedef struct FrtToken
{
char text[FRT_MAX_WORD_SIZE];
int len;
off_t start;
off_t end;
int pos_inc;
} FrtToken;
extern FrtToken *frt_tk_new();
extern void frt_tk_destroy(void *p);
extern FrtToken *frt_tk_set(FrtToken *tk, char *text, int tlen, off_t start, off_t end,
int pos_inc);
extern FrtToken *frt_tk_set_no_len(FrtToken *tk, char *text, off_t start, off_t end,
int pos_inc);
extern int frt_tk_eq(FrtToken *tk1, FrtToken *tk2);
extern int frt_tk_cmp(FrtToken *tk1, FrtToken *tk2);
/****************************************************************************
*
* FrtTokenStream
*
****************************************************************************/
typedef struct FrtTokenStream FrtTokenStream;
struct FrtTokenStream
{
char *t; /* ptr used to scan text */
char *text;
FrtToken *(*next)(FrtTokenStream *ts);
FrtTokenStream *(*reset)(FrtTokenStream *ts, char *text);
FrtTokenStream *(*clone_i)(FrtTokenStream *ts);
void (*destroy_i)(FrtTokenStream *ts);
int ref_cnt;
};
#define frt_ts_new(type) frt_ts_new_i(sizeof(type))
extern FrtTokenStream *frt_ts_new_i(size_t size);
extern FrtTokenStream *frt_ts_clone_size(FrtTokenStream *orig_ts, size_t size);
typedef struct FrtCachedTokenStream
{
FrtTokenStream super;
FrtToken token;
} FrtCachedTokenStream;
typedef struct FrtMultiByteTokenStream
{
FrtCachedTokenStream super;
mbstate_t state;
} FrtMultiByteTokenStream;
typedef enum
{
FRT_STT_ASCII,
FRT_STT_MB,
FRT_STT_UTF8
} FrtStandardTokenizerType;
typedef struct FrtStandardTokenizer
{
FrtCachedTokenStream super;
FrtStandardTokenizerType type;
} FrtStandardTokenizer;
typedef struct FrtLegacyStandardTokenizer
{
FrtCachedTokenStream super;
bool (*advance_to_start)(FrtTokenStream *ts);
bool (*is_tok_char)(char *c);
int (*get_alpha)(FrtTokenStream *ts, char *token);
int (*get_apostrophe)(char *input);
} FrtLegacyStandardTokenizer;
typedef struct FrtTokenFilter
{
FrtTokenStream super;
FrtTokenStream *sub_ts;
} FrtTokenFilter;
extern FrtTokenStream *frt_filter_clone_size(FrtTokenStream *ts, size_t size);
#define tf_new(type, sub) frt_tf_new_i(sizeof(type), sub)
extern FrtTokenStream *frt_tf_new_i(size_t size, FrtTokenStream *sub_ts);
typedef struct FrtStopFilter
{
FrtTokenFilter super;
FrtHash *words;
} FrtStopFilter;
typedef struct FrtMappingFilter
{
FrtTokenFilter super;
FrtMultiMapper *mapper;
} FrtMappingFilter;
typedef struct FrtHyphenFilter
{
FrtTokenFilter super;
char text[FRT_MAX_WORD_SIZE];
int start;
int pos;
int len;
FrtToken *tk;
} FrtHyphenFilter;
typedef struct FrtStemFilter
{
FrtTokenFilter super;
struct sb_stemmer *stemmer;
char *algorithm;
char *charenc;
} FrtStemFilter;
#define frt_ts_next(mts) mts->next(mts)
#define frt_ts_clone(mts) mts->clone_i(mts)
extern void frt_ts_deref(FrtTokenStream *ts);
extern FrtTokenStream *frt_non_tokenizer_new();
extern FrtTokenStream *frt_whitespace_tokenizer_new();
extern FrtTokenStream *frt_mb_whitespace_tokenizer_new(bool lowercase);
extern FrtTokenStream *frt_letter_tokenizer_new();
extern FrtTokenStream *frt_mb_letter_tokenizer_new(bool lowercase);
extern FrtTokenStream *frt_standard_tokenizer_new();
extern FrtTokenStream *frt_mb_standard_tokenizer_new();
extern FrtTokenStream *frt_utf8_standard_tokenizer_new();
extern FrtTokenStream *frt_legacy_standard_tokenizer_new();
extern FrtTokenStream *frt_mb_legacy_standard_tokenizer_new();
extern FrtTokenStream *frt_hyphen_filter_new(FrtTokenStream *ts);
extern FrtTokenStream *frt_lowercase_filter_new(FrtTokenStream *ts);
extern FrtTokenStream *frt_mb_lowercase_filter_new(FrtTokenStream *ts);
extern const char *FRT_ENGLISH_STOP_WORDS[];
extern const char *FRT_FULL_ENGLISH_STOP_WORDS[];
extern const char *FRT_EXTENDED_ENGLISH_STOP_WORDS[];
extern const char *FRT_FULL_FRENCH_STOP_WORDS[];
extern const char *FRT_FULL_SPANISH_STOP_WORDS[];
extern const char *FRT_FULL_PORTUGUESE_STOP_WORDS[];
extern const char *FRT_FULL_ITALIAN_STOP_WORDS[];
extern const char *FRT_FULL_GERMAN_STOP_WORDS[];
extern const char *FRT_FULL_DUTCH_STOP_WORDS[];
extern const char *FRT_FULL_SWEDISH_STOP_WORDS[];
extern const char *FRT_FULL_NORWEGIAN_STOP_WORDS[];
extern const char *FRT_FULL_DANISH_STOP_WORDS[];
extern const char *FRT_FULL_RUSSIAN_STOP_WORDS[];
extern const char *FRT_FULL_FINNISH_STOP_WORDS[];
extern const char *FRT_FULL_HUNGARIAN_STOP_WORDS[];
extern const char *FRT_FULL_RUSSIAN_STOP_WORDS_KOI8_R[];
extern FrtTokenStream *frt_stop_filter_new_with_words_len(FrtTokenStream *ts,
const char **words, int len);
extern FrtTokenStream *frt_stop_filter_new_with_words(FrtTokenStream *ts,
const char **words);
extern FrtTokenStream *frt_stop_filter_new(FrtTokenStream *ts);
extern FrtTokenStream *frt_stem_filter_new(FrtTokenStream *ts, const char *algorithm,
const char *charenc);
extern FrtTokenStream *frt_mapping_filter_new(FrtTokenStream *ts);
extern FrtTokenStream *frt_mapping_filter_add(FrtTokenStream *ts, const char *pattern,
const char *replacement);
/****************************************************************************
*
* FrtAnalyzer
*
****************************************************************************/
typedef struct FrtAnalyzer
{
FrtTokenStream *current_ts;
FrtTokenStream *(*get_ts)(struct FrtAnalyzer *a, FrtSymbol field, char *text);
void (*destroy_i)(struct FrtAnalyzer *a);
int ref_cnt;
} FrtAnalyzer;
extern void frt_a_deref(FrtAnalyzer *a);
#define frt_a_get_ts(ma, field, text) ma->get_ts(ma, field, text)
extern FrtAnalyzer *frt_analyzer_new(FrtTokenStream *ts,
void (*destroy)(FrtAnalyzer *a),
FrtTokenStream *(*get_ts)(FrtAnalyzer *a,
FrtSymbol field,
char *text));
extern void frt_a_standard_destroy(FrtAnalyzer *a);
extern FrtAnalyzer *frt_non_analyzer_new();
extern FrtAnalyzer *frt_whitespace_analyzer_new(bool lowercase);
extern FrtAnalyzer *frt_mb_whitespace_analyzer_new(bool lowercase);
extern FrtAnalyzer *frt_letter_analyzer_new(bool lowercase);
extern FrtAnalyzer *frt_mb_letter_analyzer_new(bool lowercase);
extern FrtAnalyzer *frt_standard_analyzer_new(bool lowercase);
extern FrtAnalyzer *frt_mb_standard_analyzer_new(bool lowercase);
extern FrtAnalyzer *frt_utf8_standard_analyzer_new(bool lowercase);
extern FrtAnalyzer *frt_standard_analyzer_new_with_words(
const char **words, bool lowercase);
extern FrtAnalyzer *frt_standard_analyzer_new_with_words_len(
const char **words, int len, bool lowercase);
extern FrtAnalyzer *frt_mb_standard_analyzer_new_with_words(
const char **words, bool lowercase);
extern FrtAnalyzer *frt_mb_standard_analyzer_new_with_words_len(
const char **words, int len, bool lowercase);
extern FrtAnalyzer *frt_utf8_standard_analyzer_new_with_words(
const char **words, bool lowercase);
extern FrtAnalyzer *frt_utf8_standard_analyzer_new_with_words_len(
const char **words, int len, bool lowercase);
extern FrtAnalyzer *frt_legacy_standard_analyzer_new(bool lowercase);
extern FrtAnalyzer *frt_mb_legacy_standard_analyzer_new(bool lowercase);
extern FrtAnalyzer *frt_legacy_standard_analyzer_new_with_words(
const char **words, bool lowercase);
extern FrtAnalyzer *frt_legacy_standard_analyzer_new_with_words_len(
const char **words, int len, bool lowercase);
extern FrtAnalyzer *frt_mb_legacy_standard_analyzer_new_with_words(
const char **words, bool lowercase);
extern FrtAnalyzer *frt_mb_legacy_standard_analyzer_new_with_words_len(
const char **words, int len, bool lowercase);
#define PFA(analyzer) ((FrtPerFieldAnalyzer *)(analyzer))
typedef struct FrtPerFieldAnalyzer
{
FrtAnalyzer super;
FrtHash *dict;
FrtAnalyzer *default_a;
} FrtPerFieldAnalyzer;
extern FrtAnalyzer *frt_per_field_analyzer_new(FrtAnalyzer *a);
extern void frt_pfa_add_field(FrtAnalyzer *self,
FrtSymbol field,
FrtAnalyzer *analyzer);
#ifdef __cplusplus
} // extern "C"
#endif
#endif
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