def eval(self, code, strip=True, **kwds):
"""
EXAMPLES:
sage: mupad.eval('2+2') # optional - mupad
4
"""
s = Expect.eval(self, code, **kwds)
return AsciiArtString(s)
def help(self, s):
"""
EXAMPLES:
sage: macaulay2.help("load") # optional
load -- read Macaulay2 commands
*******************************
...
* "input" -- read Macaulay2 commands and echo
* "notify" -- whether to notify the user when a file is loaded
"""
r = self.eval("help %s" % s)
end = r.rfind("\n\nDIV")
if end != -1:
r = r[:end]
return AsciiArtString(r)
def version(self):
"""
Returns the version of Lisp being used.
EXAMPLES:
sage: lisp.version()
GNU CLISP ... (...) (built ...)
...
"""
import subprocess
p = subprocess.Popen('clisp --version',
shell=True,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
return AsciiArtString(p.stdout.read())
def function_call(self, function, args=None, kwds=None):
"""
EXAMPLES:
sage: lie.function_call("diagram", args=['A4']) # optional - lie
O---O---O---O
1 2 3 4
A4
"""
#If function just prints something on the screen rather than
#returning an object, then we return an AsciiArtString rather
#than a LiEElement
if function in ['diagram', 'setdefault', 'print_tab', 'type', 'factor', 'void', 'gcol']:
args, kwds = self._convert_args_kwds(args, kwds)
cmd = "%s(%s)"%(function, ",".join([s.name() for s in args]))
return AsciiArtString(self.eval(cmd))
return Expect.function_call(self, function, args, kwds)
def eval(self, code, strip=True, **kwds):
"""
Send the code x to the Macaulay2 interpreter and return the output
as a string suitable for input back into Macaulay2, if possible.
INPUT:
code -- str
strip -- ignored
EXAMPLES:
sage: macaulay2.eval("2+2") #optional
4
"""
code = code.strip()
# TODO: in some cases change toExternalString to toString??
ans = Expect.eval(self, code, strip=strip, **kwds).strip('\n')
if strip:
ans = remove_output_labels(ans)
return AsciiArtString(ans)
def help(self, s):
"""
EXAMPLES:
sage: macaulay2.help("gb") #optional
help(gb)
...
gb -- compute a Groebner basis
******************************
...
* gb(Matrix)
* gb(Module)
"""
import re
div = re.compile("o[0-9]+ : DIV")
if self._expect is None:
self._start()
E = self._expect
E.sendline("help(%s)" % s)
E.expect(div)
s = E.before
E.expect(self._prompt)
return AsciiArtString(s)
def eval(self, code, strip=True, **kwds):
s = Expect.eval(self, code, **kwds)
if strip:
return AsciiArtString(clean_output(s))
else:
return AsciiArtString(s)