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from ipykernel.kernelbase import Kernel
import pexpect
from subprocess import check_output
from os import unlink, path
import base64
import re
import signal
import urllib
import sys
from ipykernel.comm import Comm
from ipykernel.comm import CommManager
import JuPyMake
kernel_object_for_ipython = None
def _mock_get_ipython():
global kernel_object_for_ipython
return kernel_object_for_ipython
try:
import IPython
ipython_loaded = True
except ImportError:
ipython_loaded = False
if ipython_loaded:
## Rewrite this incredibly stupid get_ipython method
get_ipython = _mock_get_ipython
sys.modules['IPython'].get_ipython = _mock_get_ipython
sys.modules['IPython'].core.getipython.get_ipython = _mock_get_ipython
try:
from ipywidgets import *
ipywidgets_extension_loaded = True
except ImportError:
ipywidgets_extension_loaded = False
class own_ipython:
kernel = None
def __init__(self, kernel = None ):
self.kernel = kernel
__version__ = '0.3'
version_pat = re.compile(r'version (\d+(\.\d+)+)')
class PolymakeRunException(Exception):
pass
class polymakeKernel(Kernel):
implementation = 'jupyter_polymake_wrapper'
implementation_version = __version__
help_links = [ { 'text': "Polymake website", 'url': "http://polymake.org/" },
{ 'text': "Polymake documentation", 'url': "https://polymake.org/doku.php/documentation" },
{ 'text': "Polymake tutorial", 'url': "https://polymake.org/doku.php/tutorial/start" },
{ 'text': "Polymake reference", 'url': "https://polymake.org/release_docs/3.0/" } ]
def _replace_get_ipython(self):
new_kernel = own_ipython(self)
global kernel_object_for_ipython
kernel_object_for_ipython = new_kernel
@property
def language_version(self):
m = version_pat.search(self.banner)
return m.group(1)
_banner = None
@property
def banner(self):
if self._banner is None:
self._banner = "Jupyter kernel for polymake"
return self._banner
language_info = {'name': 'polymake',
'codemirror_mode': 'perl', #
'mimetype': 'text/x-polymake',
'file_extension': '.pl'} # FIXME: Is this even real?
def __init__(self, **kwargs):
Kernel.__init__(self, **kwargs)
self._replace_get_ipython()
self.comm_manager = CommManager(shell=None, parent=self,
kernel=self)
self.shell_handlers['comm_open'] = self.comm_manager.comm_open
self.shell_handlers['comm_msg'] = self.comm_manager.comm_msg
self.shell_handlers['comm_close'] = self.comm_manager.comm_close
if ipywidgets_extension_loaded:
self.comm_manager.register_target('ipython.widget', Widget.handle_comm_opened)
self._start_polymake()
def _start_polymake(self):
JuPyMake.InitializePolymake()
try:
self._run_polymake_command( 'include "common::jupyter.rules";' )
except PolymakeRunException:
return
return
def _run_polymake_command( self, code ):
try:
output = JuPyMake.ExecuteCommand( code.strip()+"\n" )
except Exception as exception:
raise PolymakeRunException(exception.args[0])
return output
def _process_python( self, code ):
if code.find( "@python" ) == -1 and code.find( "@widget" ) == -1:
return False
exec(code[7:],globals(),locals())
return True
def do_execute(self, code, silent, store_history=True,
user_expressions=None, allow_stdin=False):
default_return = {'status': 'ok', 'execution_count': self.execution_count,
'payload': [], 'user_expressions': {}}
if not code.strip():
return default_return
if self._process_python( code ):
return default_return
interrupted = False
code = code.rstrip()
try:
output = self._run_polymake_command( code )
except KeyboardInterrupt:
self._run_polymake_command( '' )
interrupted = True
except PolymakeRunException as exception:
output = exception.args[0]
stream_content = {'execution_count': self.execution_count, 'data': { 'text/plain': "Error: Incomplete Statement:\n" + code }, 'metadata': dict() }
self.send_response( self.iopub_socket, 'execute_result', stream_content )
return {'status': 'error', 'execution_count': self.execution_count,
'ename': 'PolymakeRunException', 'evalue': output, 'traceback': []}
if not silent:
if output[0] == True:
if output[1] != "":
output_stdout = output[1]
while output_stdout.find( '.@@HTML@@' ) != -1:
html_position = output_stdout.find( '.@@HTML@@' )
html_end_position = output_stdout.find( '.@@ENDHTML@@' )
if html_position > 0:
before_html = output_stdout[:html_position].rstrip()
else:
before_html = ''
output_html = output_stdout[html_position+9:html_end_position-1].strip().rstrip()
output_stdout = output_stdout[html_end_position+12:].strip()
if before_html != '':
stream_content = {'execution_count': self.execution_count, 'data': { 'text/plain': before_html } }
self.send_response( self.iopub_socket, 'execute_result', stream_content )
stream_content = {'data': { 'text/html': output_html},
'metadata': dict() }
self.send_response( self.iopub_socket, 'display_data', stream_content )
if len(output_stdout) != 0:
stream_content = {'execution_count': self.execution_count, 'data': { 'text/plain': output_stdout }, 'metadata': dict() }
self.send_response( self.iopub_socket, 'execute_result', stream_content )
if output[2] != "":
output_html = "<details><summary><pre style=\"display:inline\"><small>Click here for additional output</small></pre></summary>\n<pre>\n"+output[2]+"</pre>\n</details>\n"
stream_content = {'data': { 'text/html': output_html},
'metadata': dict() }
self.send_response( self.iopub_socket, 'display_data', stream_content )
if output[3] != "":
stream_content = {'execution_count': self.execution_count, 'data': { 'text/plain': output[3] }, 'metadata': dict() }
self.send_response( self.iopub_socket, 'execute_result', stream_content )
return {'status': 'error', 'execution_count': self.execution_count,
'ename': 'PolymakeRunException', 'evalue': output, 'traceback': []}
elif output[0] == False:
if output[3] == "":
stream_content = {'execution_count': self.execution_count, 'data': { 'text/plain': "Error: Incomplete Statement:\n" + code }, 'metadata': dict() }
self.send_response( self.iopub_socket, 'execute_result', stream_content )
return {'status': 'error', 'execution_count': self.execution_count,
'ename': 'IncompleteStatementError', 'evalue': output, 'traceback': []}
else:
stream_content = {'execution_count': self.execution_count, 'data': { 'text/plain': output[3] }, 'metadata': dict() }
self.send_response( self.iopub_socket, 'execute_result', stream_content )
return {'status': 'error', 'execution_count': self.execution_count,
'ename': 'PolymakeRunException', 'evalue': output, 'traceback': []}
if interrupted:
return {'status': 'abort', 'execution_count': self.execution_count}
return {'status': 'ok', 'execution_count': self.execution_count,
'payload': [], 'user_expressions': {}}
def do_shutdown(self, restart):
if restart:
self._start_polymake()
## Temporary method to determine offset of completion. Will be replaced soon.
def get_completion_length( self, code, completion ):
code_length = len(code)
maximal_length = 0
for i in range(1,code_length+1):
if code[code_length-i:code_length] == completion[0:i]:
maximal_length = i
return maximal_length
def do_complete(self, code, cursor_pos):
try:
completions = JuPyMake.GetCompletion(code[0:cursor_pos])
except:
completions = (0,"",[])
completion_offset = completions[0]
cur_start = cursor_pos - completion_offset
return {'matches': completions[2], 'cursor_start': cur_start,
'cursor_end': cursor_pos, 'metadata': dict(),
'status': 'ok'}
def do_is_complete( self, code ):
new_code = 'if(0){ ' + code + ' }'
try:
output = self._run_polymake_command( new_code )
except PolymakeRunException:
return {'status' : 'incomplete', 'indent': '' }
if output[0] == False:
return {'status' : 'incomplete', 'indent': '' }
return {'status' : 'complete' }
def do_inspect( self, code, cursor_pos, detail_level=0, omit_sections=() ):
print(detail_level)
## ignore detail_level for now
full = True
try:
output = JuPyMake.GetContextHelp( input=code, position=cursor_pos, full=full )
except PolymakeRunException:
output = []
try:
output_html = JuPyMake.GetContextHelp( input=code, position=cursor_pos, full=full, html=True )
except PolymakeRunException:
output_html = []
output_data = { }
if output != []:
output_data['text/plain'] = "\n".join(output)
if output_html != []:
output_data['text/html'] = "\n".join(output_html)
return {'status': 'ok', 'data': output_data, 'metadata': {}, 'found': True}
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