3 files changed, 135 insertions, 0 deletions
diff --git a/bittorrent/mbtstr/include/mbtstr/str.h b/bittorrent/mbtstr/include/mbtstr/str.h
new file mode 100644
index 0000000..aaea5d6
--- /dev/null
+++ b/bittorrent/mbtstr/include/mbtstr/str.h
@@ -0,0 +1,30 @@
+#ifndef MBTSTR_STR_H
+#define MBTSTR_STR_H
+
+////////////////////////////////////////////////////////////////////////////////
+/// THIS FILE WILL BE OVERWRITTEN                                            ///
+////////////////////////////////////////////////////////////////////////////////
+
+// mbtutils
+#include <mbtstr/view.h>
+// libc
+#include <stdbool.h>
+
+struct mbt_str
+{
+    char *data;
+    size_t size;
+    size_t capacity;
+};
+
+bool mbt_str_ctor(struct mbt_str *str, size_t capacity) MBT_NONNULL(1);
+void mbt_str_dtor(struct mbt_str *str);
+
+struct mbt_str *mbt_str_init(size_t capacity);
+void mbt_str_free(struct mbt_str *str);
+
+bool mbt_str_pushc(struct mbt_str *str, char c) MBT_NONNULL(1);
+bool mbt_str_pushcstr(struct mbt_str *str, const char *cstr) MBT_NONNULL(1);
+bool mbt_str_pushcv(struct mbt_str *str, struct mbt_cview view) MBT_NONNULL(1);
+
+#endif /* !MBTSTR_STR_H */
diff --git a/bittorrent/mbtstr/include/mbtstr/utils.h b/bittorrent/mbtstr/include/mbtstr/utils.h
new file mode 100644
index 0000000..0bcbc79
--- /dev/null
+++ b/bittorrent/mbtstr/include/mbtstr/utils.h
@@ -0,0 +1,17 @@
+#ifndef MBTSTR_UTILS_H
+#define MBTSTR_UTILS_H
+
+////////////////////////////////////////////////////////////////////////////////
+/// THIS FILE WILL BE OVERWRITTEN                                            ///
+////////////////////////////////////////////////////////////////////////////////
+
+// see the Attributes section in the subject
+#define MBT_ATTR(...) __attribute__((__VA_ARGS__))
+#define MBT_UNUSED MBT_ATTR(unused)
+#define MBT_PACKED MBT_ATTR(packed)
+#define MBT_NONNULL(...) MBT_ATTR(nonnull(__VA_ARGS__))
+#define MBT_RET_NONNULL MBT_ATTR(returns_nonnull)
+
+#define MBT_UNREACHABLE() __builtin_unreachable()
+
+#endif /* !MBTSTR_UTILS_H */
diff --git a/bittorrent/mbtstr/include/mbtstr/view.h b/bittorrent/mbtstr/include/mbtstr/view.h
new file mode 100644
index 0000000..dd6e196
--- /dev/null
+++ b/bittorrent/mbtstr/include/mbtstr/view.h
@@ -0,0 +1,88 @@
+#ifndef MBTSTR_VIEW_H
+#define MBTSTR_VIEW_H
+
+////////////////////////////////////////////////////////////////////////////////
+/// THIS FILE WILL BE OVERWRITTEN                                            ///
+////////////////////////////////////////////////////////////////////////////////
+
+// mbtutils
+#include <mbtstr/utils.h>
+// libc
+#include <stdbool.h>
+#include <stdio.h>
+
+struct mbt_cview
+{
+    const char *data;
+    size_t size;
+};
+
+struct mbt_view
+{
+    char *data;
+    size_t size;
+};
+
+#define MBT_VIEW(Data, Size)                                                   \
+    ((struct mbt_view){                                                        \
+        .data = (Data),                                                        \
+        .size = (Size),                                                        \
+    })
+
+// a "View" here is just any struct with a .data and a .size
+#define MBT_VIEW_OF(View)                                                      \
+    ((struct mbt_view){                                                        \
+        .data = (View).data,                                                   \
+        .size = (View).size,                                                   \
+    })
+
+#define MBT_VIEW_ARR(Array)                                                    \
+    ((struct mbt_view){                                                        \
+        .data = (Array),                                                       \
+        .size = sizeof((Array)),                                               \
+    })
+
+// a "View" here is just any struct with a .data and a .size
+#define MBT_VIEW_SUB(View, Offset)                                             \
+    ((struct mbt_view){                                                        \
+        .data = (View).data + (Offset),                                        \
+        .size = (View).size - (Offset),                                        \
+    })
+
+#define MBT_CVIEW(Data, Size)                                                  \
+    ((struct mbt_cview){                                                       \
+        .data = (Data),                                                        \
+        .size = (Size),                                                        \
+    })
+
+// a "View" here is just any struct with a .data and a .size
+#define MBT_CVIEW_OF(View)                                                     \
+    ((struct mbt_cview){                                                       \
+        .data = (View).data,                                                   \
+        .size = (View).size,                                                   \
+    })
+
+#define MBT_CVIEW_LIT(Lit)                                                     \
+    ((struct mbt_cview){                                                       \
+        .data = (Lit),                                                         \
+        .size = sizeof((Lit)) - 1,                                             \
+    })
+
+#define MBT_CVIEW_ARR(Array)                                                   \
+    ((struct mbt_cview){                                                       \
+        .data = (Array),                                                       \
+        .size = sizeof((Array)),                                               \
+    })
+
+// a "View" here is just any struct with a .data and a .size
+#define MBT_CVIEW_SUB(View, Offset)                                            \
+    ((struct mbt_cview){                                                       \
+        .data = (View).data + (Offset),                                        \
+        .size = (View).size - (Offset),                                        \
+    })
+
+int mbt_cview_cmp(struct mbt_cview lhs, struct mbt_cview rhs);
+bool mbt_cview_contains(struct mbt_cview view, char c);
+void mbt_cview_fprint(struct mbt_cview view, FILE *stream) MBT_NONNULL(2);
+
+#endif /* !MBTSTR_VIEW_H */