def main():
argparser = argparse.ArgumentParser(
prog='mathics',
usage='%(prog)s [options] [FILE]',
add_help=False,
description="Mathics is a general-purpose computer algebra system.",
epilog="""Please feel encouraged to contribute to Mathics! Create
your own fork, make the desired changes, commit, and make a pull
request.""")
argparser.add_argument(
'FILE', nargs='?', type=argparse.FileType('r'),
help='execute commands from FILE')
argparser.add_argument(
'--help', '-h', help='show this help message and exit', action='help')
argparser.add_argument(
'--persist', help='go to interactive shell after evaluating FILE or -e',
action='store_true')
argparser.add_argument(
'--quiet', '-q', help='don\'t print message at startup',
action='store_true')
argparser.add_argument(
'-script', help='run a mathics file in script mode',
action='store_true')
argparser.add_argument(
'--execute', '-e', action='append', metavar='EXPR',
help='evaluate EXPR before processing any input files (may be given '
'multiple times)')
argparser.add_argument(
'--colors', nargs='?', help='interactive shell colors')
argparser.add_argument(
'--no-completion', help="disable tab completion", action='store_true')
argparser.add_argument(
'--no-readline', help="disable line editing (implies --no-completion)",
action='store_true')
argparser.add_argument(
'--version', '-v', action='version',
version='%(prog)s ' + __version__)
args = argparser.parse_args()
quit_command = 'CTRL-BREAK' if sys.platform == 'win32' else 'CONTROL-D'
definitions = Definitions(add_builtin=True)
definitions.set_ownvalue('$Line', Integer(0)) # Reset the line number
shell = TerminalShell(
definitions, args.colors, want_readline=not(args.no_readline),
want_completion=not(args.no_completion))
if not (args.quiet or args.script):
print()
print(version_string + '\n')
print(license_string + '\n')
print("Quit by pressing {0}\n".format(quit_command))
if args.execute:
for expr in args.execute:
print(shell.get_in_prompt() + expr)
evaluation = Evaluation(shell.definitions, out_callback=shell.out_callback)
exprs = evaluation.parse(expr)
results = evaluation.evaluate(exprs, timeout=settings.TIMEOUT)
shell.print_results(results)
if not args.persist:
return
if args.FILE is not None:
lines = args.FILE.readlines()
if args.script and lines[0].startswith('#!'):
lines[0] = ''
results = []
query_gen = parse_lines(lines, shell.definitions)
evaluation = Evaluation(shell.definitions, out_callback=shell.out_callback)
try:
for query in query_gen:
results.extend(evaluation.evaluate([query], timeout=settings.TIMEOUT))
except TranslateError as exc:
evaluation.recursion_depth = 0
evaluation.stopped = False
evaluation.message('Syntax', exc.msg, *exc.args)
except (KeyboardInterrupt):
print('\nKeyboardInterrupt')
except (SystemExit, EOFError):
print("\n\nGood bye!\n")
if not args.persist:
return
total_input = ""
while True:
try:
evaluation = Evaluation(shell.definitions, out_callback=shell.out_callback)
line = shell.read_line(shell.get_in_prompt(continued=total_input != ''))
total_input += line
try:
query = parse(total_input, shell.definitions)
except TranslateError as exc:
if line == '' or not isinstance(exc, IncompleteSyntaxError):
evaluation.message('Syntax', exc.msg, *exc.args)
total_input = ""
continue
total_input = ""
if query is None:
continue
results = evaluation.evaluate([query], timeout=settings.TIMEOUT)
shell.print_results(results)
except (KeyboardInterrupt):
print('\nKeyboardInterrupt')
except (SystemExit, EOFError):
print("\n\nGood bye!\n")
break
def main():
argparser = argparse.ArgumentParser(
prog='mathics',
usage='%(prog)s [options] [FILE]',
add_help=False,
description="Mathics is a general-purpose computer algebra system.",
epilog="""Please feel encouraged to contribute to Mathics! Create
your own fork, make the desired changes, commit, and make a pull
request.""")
argparser.add_argument('FILE',
nargs='?',
type=argparse.FileType('r'),
help='execute commands from FILE')
argparser.add_argument('--help',
'-h',
help='show this help message and exit',
action='help')
argparser.add_argument(
'--persist',
help='go to interactive shell after evaluating FILE or -e',
action='store_true')
argparser.add_argument('--quiet',
'-q',
help='don\'t print message at startup',
action='store_true')
argparser.add_argument('-script',
help='run a mathics file in script mode',
action='store_true')
argparser.add_argument(
'--execute',
'-e',
action='append',
metavar='EXPR',
help='evaluate EXPR before processing any input files (may be given '
'multiple times)')
argparser.add_argument('--colors',
nargs='?',
help='interactive shell colors')
argparser.add_argument('--no-completion',
help="disable tab completion",
action='store_true')
argparser.add_argument(
'--no-readline',
help="disable line editing (implies --no-completion)",
action='store_true')
argparser.add_argument('--version',
'-v',
action='version',
version='%(prog)s ' + __version__)
args = argparser.parse_args()
quit_command = 'CTRL-BREAK' if sys.platform == 'win32' else 'CONTROL-D'
definitions = Definitions(add_builtin=True)
definitions.set_line_no(0) # Reset the line number
shell = TerminalShell(definitions,
args.colors,
want_readline=not (args.no_readline),
want_completion=not (args.no_completion))
if not (args.quiet or args.script):
print()
print(version_string + '\n')
print(license_string + '\n')
print("Quit by pressing {0}\n".format(quit_command))
if args.execute:
for expr in args.execute:
print(shell.get_in_prompt() + expr)
evaluation = Evaluation(shell.definitions,
out_callback=shell.out_callback)
exprs = evaluation.parse(expr)
results = evaluation.evaluate(exprs, timeout=settings.TIMEOUT)
shell.print_results(results)
if not args.persist:
return
if args.FILE is not None:
lines = args.FILE.readlines()
if args.script and lines[0].startswith('#!'):
lines[0] = ''
results = []
query_gen = parse_lines(lines, shell.definitions)
evaluation = Evaluation(shell.definitions,
out_callback=shell.out_callback)
try:
for query in query_gen:
results.extend(
evaluation.evaluate([query], timeout=settings.TIMEOUT))
except TranslateError as exc:
evaluation.recursion_depth = 0
evaluation.stopped = False
evaluation.message('Syntax', exc.msg, *exc.args)
except (KeyboardInterrupt):
print('\nKeyboardInterrupt')
except (SystemExit, EOFError):
print("\n\nGood bye!\n")
if not args.persist:
return
total_input = ""
while True:
try:
evaluation = Evaluation(shell.definitions,
out_callback=shell.out_callback)
line = shell.read_line(
shell.get_in_prompt(continued=total_input != ''))
total_input += line
try:
query = parse(total_input, shell.definitions)
except TranslateError as exc:
if line == '' or not isinstance(exc, IncompleteSyntaxError):
evaluation.message('Syntax', exc.msg, *exc.args)
total_input = ""
continue
total_input = ""
if query is None:
continue
results = evaluation.evaluate([query], timeout=settings.TIMEOUT)
shell.print_results(results)
except (KeyboardInterrupt):
print('\nKeyboardInterrupt')
except (SystemExit, EOFError):
print("\n\nGood bye!\n")
break
