smarter utils

2 files changed, 31 insertions, 13 deletions

diff --git a/tools/utils.c b/tools/utils.c
index 602a144..a7c2878 100644
--- a/tools/utils.c
+++ b/tools/utils.c
@@ -6,26 +6,28 @@
 /////                   due to lack of interger abs()
 /////                   and ambiguous (and inefficient) promotion
 #include <ctype.h>      /* for isalnum() */
+using namespace std;
+
 
 // strip off the directory part of a path, leaving just
 // the basic filename
-std::string basename(const std::string path){
+string basename(const string path){
   size_t where = path.rfind("/");
-  if (where != std::string::npos) return path.substr(1+where);
+  if (where != 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){
+int prefix(const string shorter, const string longer){
   return shorter == longer.substr(0, shorter.length());
 }
 
 ///////////////
 // print a time as (-)hh:mm:ss
 //
-std::string time_out(const int _ttt){
+string time_out(const int _ttt){
 using namespace std;
   int ttt(abs(_ttt));
   int sec(ttt % 60);
@@ -46,25 +48,34 @@ using namespace std;
   return foo.str();
 }
 
-std::string toLower(const std::string a){
-  std::string rslt = a;
-  std::string::iterator rr;
+string toLower(const string a){
+  string rslt = a;
+  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");
+string ltrim(const string foo, const string strip){
+  size_t where = foo.find_first_not_of(strip);
   if (where == foo.npos) return foo;
   return foo.substr(where);
 }
 
-static const std::string Pure_Enough("+-_.,@%~");
+string rtrim(const string foo, const string strip){
+  size_t where = foo.find_last_not_of(strip);
+  if (where == foo.npos) return "";
+  return foo.substr(0, where+1);
+}
+
+string trim(const string foo, const string bar){
+  return ltrim(rtrim(foo, bar), bar);
+}
+
+static const string Pure_Enough("+-_.,@%~");
 
-std::string purify(const std::string arg){
+string purify(const string arg){
   using namespace std;
   string rslt(arg);
   for (string::iterator ptr = rslt.begin();
diff --git a/tools/utils.h b/tools/utils.h
index cbcb795..2c531b8 100644
--- a/tools/utils.h
+++ b/tools/utils.h
@@ -3,5 +3,12 @@ int prefix(const std::string shorter, const std::string longer);
 std::string time_out(const int _ttt);
 
 std::string toLower(const std::string a);
-std::string ltrim(const std::string a);
 std::string purify(const std::string arg);
+std::string ltrim(const std::string foo,
+        const std::string strip = " \t\r\n");
+
+std::string rtrim(const std::string foo,
+        const std::string strip = " \t\r\n");
+
+std::string trim(const std::string foo,
+        const std::string strip = " \t\r\n");