Allow '~/' as alias for user's home directory when importing cti/xml

interfaces/cython/cantera/ctml_writer.py

@@ -2612,6 +2612,7 @@ validate()
 def convert(filename, outName=None):
 
     import os
+    filename = os.path.expanduser(filename)
     base = os.path.basename(filename)
     root, _ = os.path.splitext(base)
     dataset(root)

src/base/application.cpp

@@ -508,6 +508,17 @@ std::string Application::findInputFile(const std::string& name)
     string inname;
     std::vector<string>& dirs = inputDirs;
 
+    // Expand "~/" to user's home directory, if possible
+    if (name.find("~/") == 0) {
+        char* home = getenv("HOME"); // POSIX systems
+        if (!home) {
+            home = getenv("USERPROFILE"); // Windows systems
+        }
+        if (home) {
+            return home + name.substr(1, npos);
+        }
+    }
+
     if (islash == string::npos && ibslash == string::npos) {
         size_t nd = dirs.size();
         inname = "";