geary/src/sqlite3-unicodesn/libstemmer_c/runtime/api.h
Charles Lindsay a4f680b4ff Basic search table implementation; fix #6766
This is a limited implementation, so please backup your database before
running this search feature branch from now on as we may change things.

It's using a Unicode Snowball stemming tokenizer available from
https://github.com/littlesavage/sqlite3-unicodesn, also handily
available in src/sqlite3-unicodesn in Geary.  If you want to look at the
search tables on the command line, cd into the unicodesn source folder,
run make and make install, then load sqlite3 like:

   sqlite3 -cmd '.load unicodesn.sqlext' /path/to/geary.db
2013-05-17 15:32:52 -07:00

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C

typedef unsigned char symbol;
/* Or replace 'char' above with 'short' for 16 bit characters.
More precisely, replace 'char' with whatever type guarantees the
character width you need. Note however that sizeof(symbol) should divide
HEAD, defined in header.h as 2*sizeof(int), without remainder, otherwise
there is an alignment problem. In the unlikely event of a problem here,
consult Martin Porter.
*/
struct SN_env {
symbol * p;
int c; int l; int lb; int bra; int ket;
symbol * * S;
int * I;
unsigned char * B;
};
extern struct SN_env * SN_create_env(int S_size, int I_size, int B_size);
extern void SN_close_env(struct SN_env * z, int S_size);
extern int SN_set_current(struct SN_env * z, int size, const symbol * s);