greenplumn api 源码
greenplumn api 代码
文件路径：/src/backend/snowball/libstemmer/api.c
#include "header.h"
extern struct SN_env * SN_create_env(int S_size, int I_size, int B_size)
{
struct SN_env * z = (struct SN_env *) calloc(1, sizeof(struct SN_env));
if (z == NULL) return NULL;
z->p = create_s();
if (z->p == NULL) goto error;
if (S_size)
{
int i;
z->S = (symbol * *) calloc(S_size, sizeof(symbol *));
if (z->S == NULL) goto error;
for (i = 0; i < S_size; i++)
{
z->S[i] = create_s();
if (z->S[i] == NULL) goto error;
}
}
if (I_size)
{
z->I = (int *) calloc(I_size, sizeof(int));
if (z->I == NULL) goto error;
}
if (B_size)
{
z->B = (unsigned char *) calloc(B_size, sizeof(unsigned char));
if (z->B == NULL) goto error;
}
return z;
error:
SN_close_env(z, S_size);
return NULL;
}
extern void SN_close_env(struct SN_env * z, int S_size)
{
if (z == NULL) return;
if (S_size)
{
int i;
for (i = 0; i < S_size; i++)
{
lose_s(z->S[i]);
}
free(z->S);
}
free(z->I);
free(z->B);
if (z->p) lose_s(z->p);
free(z);
}
extern int SN_set_current(struct SN_env * z, int size, const symbol * s)
{
int err = replace_s(z, 0, z->l, size, s, NULL);
z->c = 0;
return err;
}
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