1 files changed, 76 insertions, 0 deletions
diff --git a/tools/utils.c b/tools/utils.c
new file mode 100644
index 0000000..c544f20
--- /dev/null
+++ b/tools/utils.c
@@ -0,0 +1,76 @@
+#include <string>
+#include <sstream>
+#include <iomanip>
+//#include <stdlib.h>     /* for abs() */
+#include <cmath>
+#include <ctype.h>      /* for isalnum() */
+
+// strip off the directory part of a path, leaving just
+// the basic filename
+std::string basename(const std::string path){
+  size_t where = path.rfind("/");
+  if (where != std::string::npos) return path.substr(1+where);
+  return path;
+}
+
+////////////////
+// little utility to help with argument parsing:
+//
+int prefix(const std::string shorter, const std::string longer){
+  return shorter == longer.substr(0, shorter.length());
+}
+
+///////////////
+// print a time as (-)hh:mm:ss
+//
+std::string time_out(const int _ttt){
+using namespace std;
+  int ttt(abs(_ttt));
+  int sec(ttt % 60);
+  int min((ttt / 60) % 60);
+  int hr(ttt / 3600);
+  stringstream foo;
+  int didsome(0);
+  if (_ttt < 0) foo << "-";
+  if (hr) {
+    foo << hr << ":";
+    didsome++;
+  }
+  if (didsome || min){
+    foo << setw(didsome?2:1) << setfill('0') << min << ":";
+    didsome++;
+  }
+  foo << setw(didsome?2:1) << setfill('0') << sec;
+  return foo.str();
+}
+
+std::string toLower(const std::string a){
+  std::string rslt = a;
+  std::string::iterator rr;
+  for (rr = rslt.begin(); rr != rslt.end(); rr++){
+    *rr = tolower(*rr);
+  }
+  return rslt;
+}
+
+////////////////
+std::string ltrim(const std::string foo){
+  size_t where = foo.find_first_not_of(" \t\r\n");
+  if (where == foo.npos) return foo;
+  return foo.substr(where);
+}
+
+static const std::string Pure_Enough("+-_.,@%~");
+
+std::string purify(const std::string arg){
+  using namespace std;
+  string rslt(arg);
+  for (string::iterator ptr = rslt.begin();
+        ptr != rslt.end(); ptr++){
+    char ch = *ptr;
+    if (isalnum(ch)) continue;
+    if (Pure_Enough.find(ch) != string::npos) continue;
+    *ptr = '~';
+  }
+  return rslt;
+}