Add command-line options to change default builtins and SEF table files.

main.py

@@ -172,6 +172,8 @@ Usage: {progname}
     [-h|--help]                 print this help
     [--version]                 print this program's version
     [-o|--output=<filename>]    output to file rather than stdout
+    [-b|--builtins=<filename>]  use a builtins file other than builtins.txt
+    [-S|--seftable=<filename>]  use a SEF table file other than seftable.txt
     [-H|--header]               add the script as a comment in Firestorm format
     [-T|--timestamp]            add a timestamp as a comment at the beginning
     [-y|--python-exceptions]    when an exception is raised, show a stack trace
@@ -343,11 +345,12 @@ def main(argv):
         % (b"', '".join(options - validoptions)).decode('utf8'))
 
     try:
-        opts, args = getopt.gnu_getopt(argv[1:], 'hO:o:p:P:HTy',
+        opts, args = getopt.gnu_getopt(argv[1:], 'hO:o:p:P:HTyb:S:',
             ('optimizer-options=', 'help', 'version', 'output=', 'header',
             'timestamp','python-exceptions',
             'preproc=', 'precmd=', 'prearg=', 'prenodef', 'preshow',
-            'avid=', 'avname=', 'assetid=', 'shortname='))
+            'avid=', 'avname=', 'assetid=', 'shortname=', 'builtins='
+            'seftable='))
     except getopt.GetoptError as e:
         Usage(argv[0])
         sys.stderr.write(u"\nError: " + str(e).decode('utf8') + u"\n")
@@ -366,6 +369,8 @@ def main(argv):
     mcpp_mode = False
     preshow = False
     raise_exception = False
+    builtins = None
+    seftable = None
 
     for opt, arg in opts:
         if type(opt) is unicode:
@@ -409,6 +414,12 @@ def main(argv):
         elif opt in ('-o', '--output'):
             outfile = arg
 
+        elif opt in ('-b', '--builtins'):
+            builtins = arg
+
+        elif opt in ('-S', '--seftable'):
+            seftable = arg
+
         elif opt in ('-y', '--python-exceptions'):
             raise_exception = True
 
@@ -597,7 +608,7 @@ def main(argv):
 
         if not preshow:
 
-            p = parser()
+            p = parser(builtins, seftable)
             try:
                 ts = p.parse(script, options)
             except EParse as e: