Merge branch 'master' into test

1 files changed, 51 insertions, 0 deletions

diff --git a/src/inner_tools.c b/src/inner_tools.c
new file mode 100644
index 0000000..d958851
--- /dev/null
+++ b/src/inner_tools.c
@@ -0,0 +1,51 @@
+#include "inner_tools.h"
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+void magi_str_lowercase(char *str)
+{
+    if (!str) {
+        return;
+    }
+    for (; *str; ++str) {
+        *str = tolower(*str);
+    }
+}
+
+char *magi_str_create_copy(const char *first, int len)
+{
+    char *copy = magi_str_create(len);
+    if (copy) {
+        memcpy(copy, first, len);
+    }
+    return copy;
+}
+
+char *magi_str_create(int len)
+{
+    char *str = malloc(len + 1);
+    if (str) {
+        str[len] = 0;
+    }
+    return str;
+}
+
+int magi_str_add(char **dest, int *len, int *size, char c)
+{
+    if (!*dest) {
+        *dest = magi_str_create(1);
+    } else if (*len + 1 == *size) {
+        *size *= 2;
+        *dest  = realloc(*dest, *size);
+    }
+    if (!*dest) {
+        return 0;
+    }
+    (*dest)[*len] = c;
+    ++*len;
+    (*dest)[*len] = 0;
+    return 1;
+}