o add my bsnes branch

tools/bsnes/lib/nall/string/utility.cpp

@@ -0,0 +1,74 @@
+#ifdef NALL_STRING_CPP
+
+size_t strlcpy(nall::string &dest, const char *src, size_t length) {
+  dest.reserve(length);
+  return strlcpy(dest(), src, length);
+}
+
+size_t strlcat(nall::string &dest, const char *src, size_t length) {
+  dest.reserve(length);
+  return strlcat(dest(), src, length);
+}
+
+nall::string substr(const char *src, size_t start, size_t length) {
+  nall::string dest;
+  if(length == 0) {
+    //copy entire string
+    dest = src + start;
+  } else {
+    //copy partial string
+    strlcpy(dest, src + start, length + 1);
+  }
+  return dest;
+}
+
+/* very simplistic wrappers to return nall::string& instead of char* type */
+
+nall::string& strlower(nall::string &str) { strlower(str()); return str; }
+nall::string& strupper(nall::string &str) { strupper(str()); return str; }
+nall::string& strtr(nall::string &dest, const char *before, const char *after) { strtr(dest(), before, after); return dest; }
+nall::string& ltrim(nall::string &str, const char *key) { ltrim(str(), key); return str; }
+nall::string& rtrim(nall::string &str, const char *key) { rtrim(str(), key); return str; }
+nall::string& trim (nall::string &str, const char *key) { trim (str(), key); return str; }
+nall::string& ltrim_once(nall::string &str, const char *key) { ltrim_once(str(), key); return str; }
+nall::string& rtrim_once(nall::string &str, const char *key) { rtrim_once(str(), key); return str; }
+nall::string& trim_once (nall::string &str, const char *key) { trim_once (str(), key); return str; }
+
+/* arithmetic <> string */
+
+nall::string strhex(uintmax_t value) {
+  nall::string temp;
+  temp.reserve(strhex(0, value));
+  strhex(temp(), value);
+  return temp;
+}
+
+nall::string strsigned(intmax_t value) {
+  nall::string temp;
+  temp.reserve(strsigned(0, value));
+  strsigned(temp(), value);
+  return temp;
+}
+
+nall::string strunsigned(uintmax_t value) {
+  nall::string temp;
+  temp.reserve(strunsigned(0, value));
+  strunsigned(temp(), value);
+  return temp;
+}
+
+nall::string strbin(uintmax_t value) {
+  nall::string temp;
+  temp.reserve(strbin(0, value));
+  strbin(temp(), value);
+  return temp;
+}
+
+nall::string strdouble(double value) {
+  nall::string temp;
+  temp.reserve(strdouble(0, value));
+  strdouble(temp(), value);
+  return temp;
+}
+
+#endif