sqlite3的Go語言驅動器：go-sqlite3。符合內置數據庫/ SQL接口。

#include <pcre.h>

include <string.h>
include <stdio.h>
include <sqlite3ext.h>
SQLITE_EXTENSION_INIT1
static void regexp_func(sqlite3_context context, int argc, sqlite3_value **argv) {
  if (argc >= 2) {
    const char target  = (const char )sqlite3_value_text(argv[1]);
    const char pattern = (const char )sqlite3_value_text(argv[0]);
    const char errstr = NULL;
    int erroff = 0;
    int vec[500];
    int n, rc;
    pcre* re = pcre_compile(pattern, 0, &errstr, &erroff, NULL);
    rc = pcre_exec(re, NULL, target, strlen(target), 0, 0, vec, 500);
    if (rc <= 0) {
      sqlite3_result_error(context, errstr, 0);
      return;
    }
    sqlite3_result_int(context, 1);
  }
}
ifdef _WIN32
__declspec(dllexport)
endif
int sqlite3_extension_init(sqlite3 db, char **errmsg,
      const sqlite3_api_routines api) {
  SQLITE_EXTENSION_INIT2(api);
  return sqlite3_create_function(db, "regexp", 2, SQLITE_UTF8,
      (void*)db, regexp_func, NULL, NULL);
}</pre> 
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