--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/str.c	Mon Dec 25 16:24:16 2023 -0500
@@ -0,0 +1,51 @@
+#include <stdlib.h>
+#include <string.h>
+#include "str.h"
+
+int EDL_internal_string_init(EDL_internal_string* str) {
+    if (!str)
+        return 0;
+
+    str->size = 0;
+    str->capacity = 0;
+    str->data = NULL;
+    return 1;
+}
+
+int EDL_internal_string_allocate(EDL_internal_string* str, size_t new_capacity) {
+    if (new_capacity == str->capacity)
+        return 1; // nothing to do
+
+    str->data = realloc(str->data, new_capacity * sizeof(char));
+	if (!str->data)
+		return 0;
+
+	if (new_capacity > str->capacity)
+		memset(&str->data[str->capacity], 0, (new_capacity - str->capacity) * sizeof(char));
+
+	str->capacity = new_capacity;
+
+	return 1;
+}
+
+int EDL_internal_string_append(EDL_internal_string* str, const char* data, const size_t length) {
+    /* this sucks, but I'm too lazy to write anything smarter. */
+    {
+        size_t capacity = 1;
+        while (capacity < (str->size + length + 1))
+            capacity *= 2;
+
+        if (capacity < str->capacity || !EDL_internal_string_allocate(str, capacity))
+            return 0;
+    }
+
+    strncat(str->data, data, length);
+    str->size += length;
+
+    return 1;
+}
+
+void EDL_internal_string_free(EDL_internal_string* str) {
+    if (str->data)
+        free(str->data);
+}