ref: Refactor newer folder structure

Create a lib dict and importer project.

* dict: holds the main application
* importer: code to read from source to a common database.
* lib: shared code

1 files changed, 61 insertions, 0 deletions

diff --git a/lib/util.c b/lib/util.c
new file mode 100644
index 0000000..6720082
--- /dev/null
+++ b/lib/util.c
@@ -0,0 +1,61 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "util.h"
+
+#define BUF_SIZE 100
+
+char* copy_achar(const char* src) {
+    int len = strlen(src) + 1;
+    char* dest = (char*)malloc(sizeof(char)*len);
+    strcpy(dest, src);
+
+    return dest;
+}
+
+
+int load_or_save_db(sqlite3 *pInMemory, const char *zFilename, int isSave){
+    int rc;                   /* Function return code */
+    sqlite3 *pFile;           /* Database connection opened on zFilename */
+    sqlite3_backup *pBackup;  /* Backup object used to copy data */
+    sqlite3 *pTo;             /* Database to copy to (pFile or pInMemory) */
+    sqlite3 *pFrom;           /* Database to copy from (pFile or pInMemory) */
+
+    rc = sqlite3_open(zFilename, &pFile);
+    if( rc==SQLITE_OK ){
+        pFrom = (isSave ? pInMemory : pFile);
+        pTo   = (isSave ? pFile     : pInMemory);
+
+        pBackup = sqlite3_backup_init(pTo, "main", pFrom, "main");
+        if( pBackup ){
+            (void)sqlite3_backup_step(pBackup, -1);
+            (void)sqlite3_backup_finish(pBackup);
+        }
+        rc = sqlite3_errcode(pTo);
+    }
+
+    (void)sqlite3_close(pFile);
+    return rc;
+}
+
+unsigned int count_file_lines(FILE *file) {
+    char buf[BUF_SIZE];
+    unsigned int counter = 0;
+    for(;;)
+    {
+        size_t res = fread(buf, 1, BUF_SIZE, file);
+        if (ferror(file))
+            return -1;
+
+        size_t i;
+        for(i = 0; i < res; i++)
+            if (buf[i] == '\n')
+                counter++;
+
+        if (feof(file))
+            break;
+    }
+
+    return counter;
+}