def run_command(self, cmd, new_prompt=True):
"""Run command in interpreter"""
if cmd == 'exit()':
self.exit_flag = True
self.write('\n')
return
# -- Special commands type I
# (transformed into commands executed in the interpreter)
# ? command
special_pattern = r"^%s (?:r\')?(?:u\')?\"?\'?([a-zA-Z0-9_\.]+)"
run_match = re.match(special_pattern % 'run', cmd)
help_match = re.match(r'^([a-zA-Z0-9_\.]+)\?$', cmd)
cd_match = re.match(r"^\!cd \"?\'?([a-zA-Z0-9_ \.]+)", cmd)
if help_match:
cmd = 'help(%s)' % help_match.group(1)
# run command
elif run_match:
filename = guess_filename(run_match.groups()[0])
cmd = "runfile('%s', args=None)" % remove_backslashes(filename)
# !cd system command
elif cd_match:
cmd = 'import os; os.chdir(r"%s")' % cd_match.groups()[0].strip()
# -- End of Special commands type I
# -- Special commands type II
# (don't need code execution in interpreter)
xedit_match = re.match(special_pattern % 'xedit', cmd)
edit_match = re.match(special_pattern % 'edit', cmd)
clear_match = re.match(r"^clear ([a-zA-Z0-9_, ]+)", cmd)
# (external) edit command
if xedit_match:
filename = guess_filename(xedit_match.groups()[0])
self.widget_proxy.edit(filename, external_editor=True)
# local edit command
elif edit_match:
filename = guess_filename(edit_match.groups()[0])
if osp.isfile(filename):
self.widget_proxy.edit(filename)
else:
self.stderr_write.write("No such file or directory: %s\n" %
filename)
# remove reference (equivalent to MATLAB's clear command)
elif clear_match:
varnames = clear_match.groups()[0].replace(' ', '').split(',')
for varname in varnames:
try:
self.namespace.pop(varname)
except KeyError:
pass
# Execute command
elif cmd.startswith('!'):
# System ! command
pipe = Popen(cmd[1:],
shell=True,
stdin=PIPE,
stderr=PIPE,
stdout=PIPE)
txt_out = encoding.transcode(pipe.stdout.read())
txt_err = encoding.transcode(pipe.stderr.read().rstrip())
if txt_err:
self.stderr_write.write(txt_err)
if txt_out:
self.stdout_write.write(txt_out)
self.stdout_write.write('\n')
self.more = False
# -- End of Special commands type II
else:
# Command executed in the interpreter
# self.widget_proxy.set_readonly(True)
self.more = self.push(cmd)
# self.widget_proxy.set_readonly(False)
if new_prompt:
self.widget_proxy.new_prompt(self.p2 if self.more else self.p1)
if not self.more:
self.resetbuffer()
def transcode(self, bytes):
if os.name == 'nt':
return encoding.transcode(str(bytes.data()), 'cp850')
else:
return ExternalShellBase.transcode(self, bytes)
def run_command(self, cmd, new_prompt=True):
"""Run command in interpreter"""
if cmd == 'exit()':
self.exit_flag = True
self.write('\n')
return
# -- Special commands type I
# (transformed into commands executed in the interpreter)
# ? command
special_pattern = r"^%s (?:r\')?(?:u\')?\"?\'?([a-zA-Z0-9_\.]+)"
run_match = re.match(special_pattern % 'run', cmd)
help_match = re.match(r'^([a-zA-Z0-9_\.]+)\?$', cmd)
cd_match = re.match(r"^\!cd \"?\'?([a-zA-Z0-9_ \.]+)", cmd)
if help_match:
cmd = 'help(%s)' % help_match.group(1)
# run command
elif run_match:
filename = guess_filename(run_match.groups()[0])
cmd = "runfile('%s', args=None)" % remove_backslashes(filename)
# !cd system command
elif cd_match:
cmd = 'import os; os.chdir(r"%s")' % cd_match.groups()[0].strip()
# -- End of Special commands type I
# -- Special commands type II
# (don't need code execution in interpreter)
xedit_match = re.match(special_pattern % 'xedit', cmd)
edit_match = re.match(special_pattern % 'edit', cmd)
clear_match = re.match(r"^clear ([a-zA-Z0-9_, ]+)", cmd)
# (external) edit command
if xedit_match:
filename = guess_filename(xedit_match.groups()[0])
self.widget_proxy.edit(filename, external_editor=True)
# local edit command
elif edit_match:
filename = guess_filename(edit_match.groups()[0])
if osp.isfile(filename):
self.widget_proxy.edit(filename)
else:
self.stderr_write.write(
"No such file or directory: %s\n" % filename)
# remove reference (equivalent to MATLAB's clear command)
elif clear_match:
varnames = clear_match.groups()[0].replace(' ', '').split(',')
for varname in varnames:
try:
self.namespace.pop(varname)
except KeyError:
pass
# Execute command
elif cmd.startswith('!'):
# System ! command
pipe = Popen(cmd[1:], shell=True,
stdin=PIPE, stderr=PIPE, stdout=PIPE)
txt_out = encoding.transcode( pipe.stdout.read() )
txt_err = encoding.transcode( pipe.stderr.read().rstrip() )
if txt_err:
self.stderr_write.write(txt_err)
if txt_out:
self.stdout_write.write(txt_out)
self.stdout_write.write('\n')
self.more = False
# -- End of Special commands type II
else:
# Command executed in the interpreter
# self.widget_proxy.set_readonly(True)
self.more = self.push(cmd)
# self.widget_proxy.set_readonly(False)
if new_prompt:
self.widget_proxy.new_prompt(self.p2 if self.more else self.p1)
if not self.more:
self.resetbuffer()
def transcode(self, bytes):
if os.name == 'nt':
return encoding.transcode(str(bytes.data()), 'cp850')
else:
return ExternalShellBase.transcode(self, bytes)
