def try_metacommands(self, line):
if len(line) == 0: return False
if line.strip() == '%':
if self.mode != 'speedy':
self.mode = 'speedy'
else:
self.mode = 'normal'
self.update_banner()
u.gray("metacommand registered")
return True
# handle metacommands
if line[0] == '!':
if line.strip() == '!print':
u.y('\n'.join(self.code))
if line.strip() == '!debug':
self.debug = not self.debug
if line.strip() == '!verbose_exc':
self.verbose_exceptions = not self.verbose_exceptions
if line.strip() == '!reset':
self.__init__(None)
#if line.strip() == '!cleanup': #clears the /repl-tmpfiles directory
#u.clear_repl_tmpfiles()
#os.makedirs(os.path.dirname(self.tmpfile))
#if line.strip() == '!which':
#print(self.tmpfile)
if line.strip() == '!help':
u.b('Currently implemented macros listing:')
u.p('\n'.join(codegen.macro_argc.keys()))
u.gray("metacommand registered")
return True
return False
def run_code(self, new_code):
# write to tmpfile
#with open(self.tmpfile,'w') as f:
#f.write('\n'.join(self.code))
codestring = '\n'.join(new_code)
u.b(codestring)
# `use` statements
if codestring.strip()[:4] == 'use ':
assert codestring[:
4] == 'use ', "`use` statements can only be used at indentation level 0"
items = codestring.strip().split(' ')
assert len(
items
) == 2, "`use` syntax is: `use IDENTIFIER` where the identifier is a filename WITHOUT '.py' included and that file is in the current directory. These limitations will be relaxed in the future."
filename = items[1] + '.py'
self.add_context(filename)
return
try:
# Note that this can only take one Interactive line at a time (which may
# actually be a multiline for loop etc).
# A version that compiled with 'exec' or 'eval' mode and thus could
# handle multiple Interactive lines at once was used in an
# earlier version, look back thru the git repository if you need it. However
# really you should be able to just divide up your input and call run_code multiple
# times with the pieces.
"""
"Remember that at module level, globals and locals are the same dictionary. If exec gets two separate objects as globals and locals, the code will be executed as if it were embedded in a class definition."
"""
as_ast = ast.parse(codestring,
mode='single') # parse into a python ast object
as_ast = ast.fix_missing_locations(as_ast)
code = compile(as_ast, '<ast>', 'single')
exec(
code, self.globs
) #passing locals in causes it to only update locals and not globals, when really we just want globals to be updated. Confirmed by looking at the `code` module (pythons interactive interpreter emulator) that this is valid (tho they name the thing they pass in locals not globals).
#print(ast.dump(as_ast))
self.code += new_code # keep track of successfully executed code
except u.VerbatimExc as e:
print(e)
if self.context.compile:
sys.exit(1)
except Exception as e:
# This is where exceptions for the code go.
# TODO make em look nicer by telling format_exception this is the special case of a repl error thrown by exec() or eval()
# (for this you may wanna have ast.parse() in a separate try-except to differentiate. It'll catch syntax errors specifically.
print(
u.format_exception(e, ['<string>', u.src_path],
verbose=self.verbose_exceptions))
if self.context.compile:
sys.exit(1)
def _parse_chunk_size(self, data):
idx = data.find(b("\r\n"))
if idx < 0:
return None, None
line, rest_chunk = data[:idx], data[idx+2:]
chunk_size = line.split(b(";"), 1)[0].strip()
try:
chunk_size = int(chunk_size, 16)
except ValueError:
raise InvalidChunkSize(chunk_size)
if chunk_size == 0:
self._parse_trailers(rest_chunk)
return 0, None
return chunk_size, rest_chunk
def _parse_body(self):
if not self._chunked:
body_part = b("").join(self._buf)
self._clen_rest -= len(body_part)
# maybe decompress
if self.__decompress_obj is not None:
body_part = self.__decompress_obj.decompress(body_part)
self._partial_body = True
self._body.append(body_part)
self._buf = []
if self._clen_rest <= 0:
self.__on_message_complete = True
return
else:
data = b("").join(self._buf)
try:
size, rest = self._parse_chunk_size(data)
except InvalidChunkSize as e:
self.errno = INVALID_CHUNK
self.errstr = "invalid chunk size [%s]" % str(e)
return -1
if size == 0:
return size
if size is None or len(rest) < size:
return None
body_part, rest = rest[:size], rest[size:]
if len(rest) < 2:
self.errno = INVALID_CHUNK
self.errstr = "chunk missing terminator [%s]" % data
return -1
# maybe decompress
if self.__decompress_obj is not None:
body_part = self.__decompress_obj.decompress(body_part)
self._partial_body = True
self._body.append(body_part)
self._buf = [rest[2:]]
return len(rest)
def recv_body_into(self, barray):
""" Receive the last chunk of the parsed bodyand store the data
in a buffer rather than creating a new string. """
l = len(barray)
body = b("").join(self._body)
m = min(len(body), l)
data, rest = body[:m], body[m:]
barray[0:m] = data
if not rest:
self._body = []
self._partial_body = False
else:
self._body = [rest]
return m
def prepare_cmds_for_coq_output(coqc_prog,
coqc_prog_args,
contents,
cwd=None,
timeout_val=0,
**kwargs):
key = (coqc_prog, tuple(coqc_prog_args), kwargs['pass_on_stdin'], contents,
timeout_val, cwd)
if key in COQ_OUTPUT.keys():
file_name = COQ_OUTPUT[key][0]
else:
with tempfile.NamedTemporaryFile(suffix='.v', delete=False,
mode='wb') as f:
f.write(util.b(contents))
file_name = f.name
file_name_root = os.path.splitext(file_name)[0]
cmds = [coqc_prog] + list(coqc_prog_args)
pseudocmds = ''
input_val = None
if kwargs['is_coqtop']:
if kwargs['pass_on_stdin']:
input_val = contents
cmds.extend(['-q'])
pseudocmds = '" < "%s' % file_name
else:
cmds.extend(['-load-vernac-source', file_name_root, '-q'])
else:
cmds.extend([file_name, '-q'])
if kwargs['verbose'] >= kwargs['verbose_base']:
kwargs['log']('\nRunning command: "%s%s"' %
('" "'.join(cmds), pseudocmds))
if kwargs['verbose'] >= kwargs['verbose_base'] + 1:
kwargs['log']('\nContents:\n%s\n' % contents)
return key, file_name, cmds, input_val
def _parse_trailers(self, data):
idx = data.find(b("\r\n\r\n"))
if data[:2] == b("\r\n"):
self._trailers = self._parse_headers(data[:idx])
def _parse_headers(self, data):
idx = data.find(b("\r\n\r\n"))
if idx < 0: # we don't have all headers
return False
# Split lines on \r\n keeping the \r\n on each line
lines = [bytes_to_str(line) + "\r\n" for line in
data[:idx].split(b("\r\n"))]
# Parse headers into key/value pairs paying attention
# to continuation lines.
while len(lines):
# Parse initial header name : value pair.
curr = lines.pop(0)
if curr.find(":") < 0:
raise InvalidHeader("invalid line %s" % curr.strip())
name, value = curr.split(":", 1)
name = name.rstrip(" \t").upper()
if HEADER_RE.search(name):
raise InvalidHeader("invalid header name %s" % name)
name, value = name.strip(), [value.lstrip()]
# Consume value continuation lines
while len(lines) and lines[0].startswith((" ", "\t")):
value.append(lines.pop(0))
value = ''.join(value).rstrip()
# multiple headers
if name in self._headers:
value = "%s, %s" % (self._headers[name], value)
# store new header value
self._headers[name] = value
# update WSGI environ
key = 'HTTP_%s' % name.upper().replace('-','_')
self._environ[key] = value
# detect now if body is sent by chunks.
clen = self._headers.get('content-length')
te = self._headers.get('transfer-encoding', '').lower()
if clen is not None:
try:
self._clen_rest = self._clen = int(clen)
except ValueError:
pass
else:
self._chunked = (te == 'chunked')
if not self._chunked:
self._clen_rest = MAXSIZE
# detect encoding and set decompress object
encoding = self._headers.get('content-encoding')
if self.decompress:
if encoding == "gzip":
self.__decompress_obj = zlib.decompressobj(16+zlib.MAX_WBITS)
elif encoding == "deflate":
self.__decompress_obj = zlib.decompressobj()
rest = data[idx+4:]
self._buf = [rest]
self.__on_headers_complete = True
return len(rest)
def execute(self, data, length):
# end of body can be passed manually by putting a length of 0
if length == 0:
self.__on_message_complete = True
return length
# start to parse
nb_parsed = 0
while True:
if not self.__on_firstline:
idx = data.find(b("\r\n"))
if idx < 0:
self._buf.append(data)
return len(data)
else:
self.__on_firstline = True
self._buf.append(data[:idx])
first_line = bytes_to_str(b("").join(self._buf))
nb_parsed = nb_parsed + idx + 2
rest = data[idx+2:]
data = b("")
if self._parse_firstline(first_line):
self._buf = [rest]
else:
return nb_parsed
elif not self.__on_headers_complete:
if data:
self._buf.append(data)
data = b("")
try:
to_parse = b("").join(self._buf)
ret = self._parse_headers(to_parse)
if not ret:
return length
nb_parsed = nb_parsed + (len(to_parse) - ret)
except InvalidHeader as e:
self.errno = INVALID_HEADER
self.errstr = str(e)
return nb_parsed
elif not self.__on_message_complete:
if not self.__on_message_begin:
self.__on_message_begin = True
if data:
self._buf.append(data)
data = b("")
ret = self._parse_body()
if ret is None:
return length
elif ret < 0:
return ret
elif ret == 0:
self.__on_message_complete = True
return length
else:
nb_parsed = max(length, ret)
else:
return 0
def recv_body(self):
""" return last chunk of the parsed body"""
body = b("").join(self._body)
self._body = []
self._partial_body = False
return body
def split_statements_to_definitions(statements,
verbose=DEFAULT_VERBOSITY,
log=DEFAULT_LOG,
coqtop='coqtop',
coqtop_args=tuple(),
**kwargs):
"""Splits a list of statements into chunks which make up
independent definitions/hints/etc."""
def fallback():
if verbose:
log("Your version of coqtop doesn't support -time. Falling back to more error-prone method."
)
return split_definitions_old.split_statements_to_definitions(
statements,
verbose=verbose,
log=log,
coqtop=coqtop,
coqtop_args=coqtop_args)
# check for -time
if not get_coq_accepts_time(coqtop, verbose=verbose, log=log):
return fallback()
if not get_proof_term_works_with_time(
coqtop, is_coqtop=True, verbose=verbose, log=log, **kwargs):
statements = postprocess_split_proof_term(statements,
log=log,
verbose=verbose,
**kwargs)
p = Popen([coqtop, '-q', '-emacs', '-time'] + list(coqtop_args),
stdout=PIPE,
stderr=STDOUT,
stdin=PIPE)
split_reg = re.compile(
r'Chars ([0-9]+) - ([0-9]+) [^\s]+ (.*?)<prompt>([^<]*?) < ([0-9]+) ([^<]*?) ([0-9]+) < ([^<]*?)</prompt>'
.replace(' ', r'\s*'),
flags=re.DOTALL)
defined_reg = re.compile(r'^([^\s]+) is (?:defined|assumed)$',
re.MULTILINE)
# goals and definitions are on stdout, prompts are on stderr
statements_string = '\n'.join(statements) + '\n\n'
if verbose: log('Sending statements to coqtop...')
if verbose >= 3: log(statements_string)
(stdout, stderr) = p.communicate(input=util.b(statements_string))
stdout = util.s(stdout)
if 'know what to do with -time' in stdout.strip().split('\n')[0]:
# we're using a version of coqtop that doesn't support -time
return fallback()
if verbose: log('Done. Splitting to definitions...')
rtn = []
cur_definition = {}
last_definitions = '||'
cur_definition_names = '||'
last_char_end = 0
#if verbose >= 3: log('re.findall(' + repr(r'Chars ([0-9]+) - ([0-9]+) [^\s]+ (.*?)<prompt>([^<]*?) < ([0-9]+) ([^<]*?) ([0-9]+) < ([^<]*?)</prompt>'.replace(' ', r'\s*')) + ', ' + repr(stdout) + ', ' + 'flags=re.DOTALL)')
responses = split_reg.findall(stdout)
for char_start, char_end, response_text, cur_name, line_num1, cur_definition_names, line_num2, unknown in responses:
char_start, char_end = int(char_start), int(char_end)
statement = strip_newlines(
slice_statements_string(statements_string, last_char_end,
char_end))
last_char_end = char_end
terms_defined = defined_reg.findall(response_text)
definitions_removed, definitions_shared, definitions_added = get_definitions_diff(
last_definitions, cur_definition_names)
# first, to be on the safe side, we add the new
# definitions key to the dict, if it wasn't already there.
if cur_definition_names.strip(
'|') and cur_definition_names not in cur_definition:
cur_definition[cur_definition_names] = {
'statements': [],
'terms_defined': []
}
if verbose >= 2:
log((statement, (char_start, char_end), definitions_removed,
terms_defined, 'last_definitions:', last_definitions,
'cur_definition_names:', cur_definition_names,
cur_definition.get(last_definitions, []),
cur_definition.get(cur_definition_names, []), response_text))
# first, we handle the case where we have just finished
# defining something. This should correspond to
# len(definitions_removed) > 0 and len(terms_defined) > 0.
# If only len(definitions_removed) > 0, then we have
# aborted something. If only len(terms_defined) > 0, then
# we have defined something with a one-liner.
if definitions_removed:
cur_definition[last_definitions]['statements'].append(statement)
cur_definition[last_definitions]['terms_defined'] += terms_defined
if cur_definition_names.strip('|'):
# we are still inside a definition. For now, we
# flatten all definitions.
#
# TODO(jgross): Come up with a better story for
# nested definitions.
cur_definition[cur_definition_names][
'statements'] += cur_definition[last_definitions][
'statements']
cur_definition[cur_definition_names][
'terms_defined'] += cur_definition[last_definitions][
'terms_defined']
del cur_definition[last_definitions]
else:
# we're at top-level, so add this as a new
# definition
rtn.append({
'statements':
tuple(cur_definition[last_definitions]['statements']),
'statement':
'\n'.join(cur_definition[last_definitions]['statements']),
'terms_defined':
tuple(cur_definition[last_definitions]['terms_defined'])
})
del cur_definition[last_definitions]
# print('Adding:')
# print(rtn[-1])
elif terms_defined:
if cur_definition_names.strip('|'):
# we are still inside a definition. For now, we
# flatten all definitions.
#
# TODO(jgross): Come up with a better story for
# nested definitions.
cur_definition[cur_definition_names]['statements'].append(
statement)
cur_definition[cur_definition_names][
'terms_defined'] += terms_defined
else:
# we're at top level, so add this as a new
# definition
rtn.append({
'statements': (statement, ),
'statement': statement,
'terms_defined': tuple(terms_defined)
})
# now we handle the case where we have just opened a fresh
# definition. We've already added the key to the
# dictionary.
elif definitions_added:
# print(definitions_added)
cur_definition[cur_definition_names]['statements'].append(
statement)
else:
# if we're in a definition, append the statement to
# the queue, otherwise, just add it as it's own
# statement
if cur_definition_names.strip('|'):
cur_definition[cur_definition_names]['statements'].append(
statement)
else:
rtn.append({
'statements': (statement, ),
'statement': statement,
'terms_defined': tuple()
})
last_definitions = cur_definition_names
if verbose >= 2: log((last_definitions, cur_definition_names))
if last_definitions.strip('||'):
rtn.append({
'statements':
tuple(cur_definition[cur_definition_names]['statements']),
'statement':
'\n'.join(cur_definition[cur_definition_names]['statements']),
'terms_defined':
tuple(cur_definition[cur_definition_names]['terms_defined'])
})
del cur_definition[last_definitions]
if last_char_end + 1 < len_statements_string(statements_string):
if verbose >= 2:
log('Appending end of code from %d to %d: %s' %
(last_char_end, len_statements_string(statements_string),
slice_statements_string(statements_string, last_char_end,
None)))
last_statement = strip_newlines(
slice_statements_string(statements_string, last_char_end, None))
rtn.append({
'statements': tuple(last_statement, ),
'statement': last_statement,
'terms_defined': tuple()
})
return rtn
def len_statements_string(statements_string):
return len(util.b(statements_string))
def slice_statements_string(statements_string, start=None, end=None):
statements_string = util.b(statements_string)
if start is None: start = 0
if end is None: end = len(statements_string)
return util.s(statements_string[start:end])
