NPSML: hash/Intern.h Source File

00001 #ifndef NPS_VOC_H
00002 #define NPS_VOC_H
00003 #include "../error/error.h"
00004 #include "../nps/Object.h"
00005 
00006 /* Intern strings-- convert each unique string into an integer index */
00007 
00008 extern const struct Nps_Intern *Nps_Intern ;
00009 /* class initialization*/
00010 extern int nps_initIntern(nps_error_t *);
00011 /* Build a new Object */
00012 extern struct Nps_Intern* nps_newIntern(nps_error_t *err, int64_t size);
00013 extern struct Nps_Intern *nps_InternFromFile(nps_error_t *err, const char *filename);
00014 /* number of interned strings */
00015 extern int64_t nps_InternLen(struct Nps_Intern *o);
00016 /* prevent further alteration of the database */
00017 extern void nps_InternFreeze(struct Nps_Intern *o);
00018 /* query database state (frozen vs mutable) */
00019 extern char nps_InternIsFrozen(struct Nps_Intern *o);
00020 /* reverse the order for string processing */
00021 extern char** nps_InternInvert(struct Nps_Intern *o, nps_error_t *err);
00022 /* write the intern database to a file */
00023 extern int nps_InternToFile(struct Nps_Intern *o, nps_error_t *err, const char *filename);
00024 
00025 
00026 /* fill result with string index. Return non-zero on failure.
00027    Return -1 when the database is frozen and the query is unknown 
00028  */
00029 extern int nps_InternIntern(struct Nps_Intern *o, nps_error_t *err, const char *const key, 
00030                             int64_t *result);
00031 
00032 #endif