Python 3 compatibility for the helper scripts

print() is a function in python 3.
Works with pyhton 2.x, too.

tools/extracttests.py

@@ -135,8 +135,8 @@ def writeHtmlFile(nodes, functionName, filename, errorsOnly):
 
 
 if len(sys.argv) <= 1 or '--help' in sys.argv:
-    print 'Extract test cases from test file'
-    print 'Syntax: extracttests.py [--html=folder] [--xml] [--code=folder] path/testfile.cpp'
+    print ('Extract test cases from test file')
+    print ('Syntax: extracttests.py [--html=folder] [--xml] [--code=folder] path/testfile.cpp')
     sys.exit(0)
 
 # parse command line
@@ -154,7 +154,7 @@ for arg in sys.argv[1:]:
     elif arg.endswith('.cpp'):
         filename = arg
     else:
-        print 'Invalid option: ' + arg
+        print ('Invalid option: ' + arg)
         sys.exit(1)
 
 
@@ -166,8 +166,8 @@ if filename != None:
 
     # generate output
     if xml:
-        print '<?xml version="1.0"?>'
-        print '<tree>'
+        print ('<?xml version="1.0"?>')
+        print ('<tree>')
         count = 0
         for node in e.nodes:
             s  = '  <node'
@@ -175,8 +175,8 @@ if filename != None:
             s += ' code="' + strtoxml(node['code']) + '"'
             s += ' expected="' + strtoxml(node['expected']) + '"'
             s += '/>'
-            print s
-        print '</tree>'
+            print (s)
+        print ('</tree>')
     elif htmldir != None:
         if not htmldir.endswith('/'):
             htmldir += '/'
@@ -277,4 +277,4 @@ if filename != None:
         errors.close()
     else:
         for node in e.nodes:
-            print node['functionName']
+            print (node['functionName'])

tools/matchcompiler.py

@@ -31,7 +31,7 @@ def compileCmd(tok):
     elif tok == '%varid%':
         return '(tok->isName() && tok->varId()==varid)'
     elif (len(tok)>2) and (tok[0]=="%"):
-        print "unhandled:" + tok
+        print ("unhandled:" + tok)
     return '(tok->str()=="'+tok+'")'
 
 def compilePattern(pattern, nr, varid):
@@ -189,9 +189,9 @@ def convertFile(srcname, destname):
 # selftests..
 def assertEquals(actual,expected):
     if actual!=expected:
-        print 'Assertion failed:'
-        print actual
-        print expected
+        print ('Assertion failed:')
+        print (actual)
+        print (expected)
         assert actual == expected
 assertEquals(parseMatch('  Token::Match(tok, ";") ',2), ['Token::Match(tok, ";")','tok',' ";"'])
 assertEquals(parseMatch('  Token::Match(tok,', 2), None) # multiline Token::Match is not supported yet
@@ -199,6 +199,6 @@ assertEquals(parseMatch('  Token::Match(Token::findsimplematch(tok,")"), ";")',
 
 # convert all lib/*.cpp files
 for f in glob.glob('lib/*.cpp'):
-    print f + ' => build/' + f[4:]
+    print (f + ' => build/' + f[4:])
     convertFile(f, 'build/'+f[4:])