1 files changed, 57 insertions, 0 deletions
diff --git a/src/utils.c b/src/utils.c
new file mode 100644
index 0000000..4212561
--- /dev/null
+++ b/src/utils.c
@@ -0,0 +1,57 @@
+#include "utils.h"
+
+#include <ctype.h>
+#include <stdlib.h>
+
+
+void magi_str_lowercase(char * str)
+{
+    if (str) {
+        while (*str) {
+            *str = tolower(*str);
+            ++str;
+        }
+    }
+}
+
+char * magi_str_create_copy(const char * begin, const char * end)
+{
+    char * res;
+    res = malloc(end - begin + 1);
+    if (res) {
+        memcpy(res, begin, end - begin);
+        res[end - begin] = 0;
+    } else {
+        magi_log("Cannot allocate string.");
+    }
+    return res;
+}
+
+char * magi_str_create(int len)
+{
+    char * str = malloc(len + 1);
+    if (str) {
+        str[len] = 0;
+    } else {
+        magi_log("Cannot allocate string.");
+    }
+    return str;
+}
+
+int magi_str_add(char ** dest, int * len, int * size, char c)
+{
+    int ok = 1;
+    if (*len + 1 == *size) {
+        *size *= 2;
+        *dest = realloc(*dest, *size);
+    }
+    if (*dest == 0) {
+        ok = 0;
+        magi_log("Cannot allocate string.");
+    } else {
+        (*dest)[*len] = c;
+        ++*len;
+        (*dest)[*len] = 0;
+    }
+    return ok;
+}