started using auto-header generator

makeh.cpp

@@ -0,0 +1,82 @@
+#include <cstdio>
+#include <iostream>
+#include <fstream>
+#include <string>
+
+using namespace std;
+
+int indent = 2;
+
+string ind() { string s; for(int i=0; i<indent; i++) s += ' '; return s; }
+
+string which_file;
+
+void mark_file() {
+  if(which_file != "") {
+    cout << "\n" << ind() << "// implemented in: " << which_file << "\n\n";
+    which_file = "";
+    }
+  }
+
+bool do_endif;
+
+
+void gen(string s) {
+  which_file = s;
+  do_endif = false;
+  ifstream in(s);
+  while(getline(in, s)) {
+    while(s != "" && s[0] == ' ') s = s.substr(1);
+    if(s.substr(0, 7) == "#if EX ") {
+      cout << ind() << s << "\n";
+      do_endif = true;
+      }
+    if(s.substr(0, 3) == "EX ") {
+      string t = s.substr(3);
+      if(t.substr(0, 10) == "namespace ") {
+        mark_file();
+        cout << ind() << t << "\n";
+        indent += 2;
+        }
+      else {
+        for(int i=0;; i++) {
+          if(i == int(t.size())) { cerr << "Error: unrecognizable EX\n"; }
+          else if(t[i] == '{') {
+            while(i && t[i-1] == ' ') i--;
+            cout << ind() << t.substr(0, i) << ";\n";
+            break;
+            }
+          else if(t[i] == ';') {
+            cout << ind() << "extern " << t << "\n";
+            break;
+            }
+          else if(t[i] == '=') {
+            while(i && t[i-1] == ' ') i--;
+            cout << ind() << "extern " << t.substr(0, i) << ";\n";
+            break;
+            }
+          }
+        }
+      }
+    }
+  
+  if(do_endif) {
+    cout << ind() << "#endif\n";
+    do_endif = false;
+    }
+
+  while(indent > 2) {
+    cout << ind() << "}\n";
+    indent -= 2;
+    }
+  }
+
+int main(int argc, char ** argv) {
+  printf("// This file is generated automatically by makeh.cpp.\n\nnamespace hr {\n");
+  indent = 2;
+  
+  for(int i=1; i<argc; i++) 
+    gen(argv[i]);
+  
+  printf("  }\n");
+  }