added real_path function; bumped version to 1.1

Makefile

@@ -1,6 +1,6 @@
 LIBNAME := $(shell basename $$(pwd))
 MAJOR := 1
-MINOR := 0.0
+MINOR := 1.0
 
 UNAME_S := $(shell uname -s)
 

string_utils.cpp

@@ -198,11 +198,7 @@ string sc::filename_extension(const string& path) {
 
 string sc::tool_path(const string& name) {
     if (name.find('/') != string::npos) { // name has (at least one) slash
-        vector<char> buf;
-        buf.resize(PATH_MAX);
-        if (::realpath(name.c_str(), buf.data())) {
-            return string(buf.data());
-        }
+        return sc::real_path(name);
     } else { // no slash in name => command from PATH?
         string envpath {::getenv("PATH")};
         vector<string> paths {sc::split(envpath, ":")};
@@ -259,3 +255,12 @@ bool sc::is_valid_utf8(const string& str) {
     }
     return true;
 }
+
+string sc::real_path(const string& path) {
+    vector<char> buf;
+    buf.resize(PATH_MAX);
+    if (::realpath(path.c_str(), buf.data())) {
+        return string(buf.data());
+    }
+    return "";
+}

string_utils.hpp

@@ -63,6 +63,7 @@ namespace sc {
 
     bool                                is_valid_utf8       (const std::string& str);
 
+    std::string                         real_path           (const std::string& path);
 }
 
 #endif // _string_utils_