first commit

1 files changed, 51 insertions, 0 deletions

diff --git a/src/better_string.c b/src/better_string.c
new file mode 100644
index 0000000..4413f77
--- /dev/null
+++ b/src/better_string.c
@@ -0,0 +1,51 @@
+#include <better_string.h>
+#include <helpers.h>
+#include <stdlib.h>
+#include <string.h>
+
+string_t *init_string(const char *src) {
+  string_t *s = safe_calloc(1, sizeof(string_t));
+  size_t len = src ? strlen(src) : DEFAULT_STR_SIZE;
+  size_t size = len * 2;
+  s->buf = safe_calloc(size, sizeof(char));
+  s->buf[0] = '\0';
+
+  if (src)
+    strcpy(s->buf, src);
+  s->len = len;
+  s->size = size;
+  return s;
+}
+
+void string_push(string_t *s, char c) {
+  if (s->len >= s->size - 2) {
+    s->size *= 2;
+    s->buf = safe_realloc(s->buf, s->size);
+  }
+  s->buf[s->len] = c;
+  s->len++;
+}
+
+char string_pop(string_t *s) {
+  char c = s->buf[s->len];
+  s->len--;
+  return c;
+}
+
+void string_concat_const(string_t *s1, const char *s2) {
+  for (int i = 0; i < strlen(s2); i++) {
+    string_push(s1, s2[i]);
+  }
+}
+
+void string_concat(string_t *s1, string_t *s2) {
+  for (int i = 0; i < s2->len; i++) {
+    string_push(s1, s2->buf[i]);
+  }
+}
+
+void string_free(void *x) {
+  string_t *s = x;
+  free(s->buf);
+  free(s);
+}