added:

* coroutines
 * string
modified:
 * http: fixed a couple of bugs
 * strutils: renamed to os, it is now a header for some generic platform-indipendent code
 * tracelog: added option to not print newline at the end of a message + bug fixes

str.h

@@ -0,0 +1,61 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stddef.h>
+#include "strview.h"
+
+#define STR_TESTING
+
+typedef struct {
+    char *buf;
+    size_t len;
+} str_t;
+
+str_t strInit(void);
+str_t strInitStr(const char *cstr);
+str_t strInitView(strview_t view);
+str_t strInitBuf(const char *buf, size_t len);
+
+void strFree(str_t *ctx);
+
+str_t strMove(str_t *ctx);
+str_t strDup(str_t ctx);
+
+strview_t strGetView(str_t *ctx);
+
+char *strBegin(str_t *ctx);
+char *strEnd(str_t *ctx);
+
+char strBack(str_t *ctx);
+
+bool strIsEmpty(str_t *ctx);
+
+void strAppend(str_t *ctx, const char *str);
+void strAppendStr(str_t *ctx, str_t str);
+void strAppendView(str_t *ctx, strview_t view);
+void strAppendBuf(str_t *ctx, const char *buf, size_t len);
+void strAppendChars(str_t *ctx, char c, size_t count);
+
+void strPush(str_t *ctx, char c);
+char strPop(str_t *ctx);
+
+void strSwap(str_t *ctx, str_t *other);
+
+// if len == SIZE_MAX, copies until end
+str_t strSubstr(str_t *ctx, size_t pos, size_t len);
+// if len == SIZE_MAX, returns until end
+strview_t strSubview(str_t *ctx, size_t pos, size_t len);
+
+void strLower(str_t *ctx);
+str_t strToLower(str_t ctx);
+
+#ifdef STR_TESTING
+void strTest(void);
+#endif
+
+#ifdef __cplusplus
+} // extern "C"
+#endif