def __init__(self, lexer, parser, parent):
Token.__init__(self, 'Term', lexer, parser, parent)
self.term = None
self.lft = None
self.rgt = None
self.op = None
# Expect a term.
ttype, token = lexer.token()
if lexer.current_is('varname'):
if not parent.is_defined(token):
lexer.error('Undeclared variable %s' % token, self, ValueError)
self.term = Variable(lexer, parser, parent)
elif lexer.current_is('open_function_call'):
self.term = FunctionCall(lexer, parser, parent)
elif lexer.current_is('string_delimiter'):
self.term = String(lexer, parser, parent)
elif lexer.next_if('number'):
self.term = Number(token)
elif lexer.next_if('keyword', 'false'):
self.term = Number(0)
elif lexer.next_if('keyword', 'true'):
self.term = Number(1)
elif lexer.next_if('octal_number'):
self.term = Number(int(token[1:], 8))
elif lexer.next_if('hex_number'):
self.term = Number(int(token[2:], 16))
elif lexer.current_is('regex_delimiter'):
self.term = Regex(lexer, parser, parent)
else:
lexer.syntax_error('Expected term but got %s' % ttype, self)
self.mark_end()
def __init__(self, lexer, parser, parent):
Token.__init__(self, 'Term', lexer, parser, parent)
self.term = None
self.lft = None
self.rgt = None
self.op = None
# Expect a term.
ttype, token = lexer.token()
if lexer.current_is('varname'):
if not parent.is_defined(token):
lexer.error('Undeclared variable %s' % token, self, ValueError)
self.term = Variable(lexer, parser, parent)
elif lexer.current_is('open_function_call'):
self.term = FunctionCall(lexer, parser, parent)
elif lexer.current_is('string_delimiter'):
self.term = String(lexer, parser, parent)
elif lexer.next_if('number'):
self.term = Number(token)
elif lexer.next_if('keyword', 'false'):
self.term = Number(0)
elif lexer.next_if('keyword', 'true'):
self.term = Number(1)
elif lexer.next_if('octal_number'):
self.term = Number(int(token[1:], 8))
elif lexer.next_if('hex_number'):
self.term = Number(int(token[2:], 16))
elif lexer.current_is('regex_delimiter'):
self.term = Regex(lexer, parser, parent)
else:
lexer.syntax_error('Expected term but got %s' % ttype, self)
self.mark_end()
def __init__(self, lexer, parser, parent):
Token.__init__(self, 'Extract', lexer, parser, parent)
self.varnames = []
self.variables = {}
self.append = False
self.source = None
if parser.no_prompt:
msg = "'extract' keyword does not work with --no-prompt"
lexer.syntax_error(msg, self)
# First expect a regular expression.
lexer.expect(self, 'keyword', 'extract')
lexer.expect(self, 'whitespace')
self.regex = Regex(lexer, parser, parent)
# Expect "as" keyword.
lexer.expect(self, 'whitespace')
if lexer.next_if('keyword', 'as'):
self.append = False
elif lexer.next_if('keyword', 'into'):
self.append = True
else:
_, token = lexer.token()
msg = 'Expected "as" or "into" but got %s' % token
lexer.syntax_error(msg, self)
# Expect a list of variable names.
while 1:
# Variable name.
lexer.expect(self, 'whitespace')
_, token = lexer.token()
lexer.expect(self, 'varname')
if token in self.variables:
lexer.syntax_error('Duplicate variable name %s', self)
self.varnames.append(token)
self.variables[token] = []
# Comma.
if lexer.next_if('comma'):
continue
break
self.parent.define(**self.variables)
if len(self.varnames) != self.regex.n_groups:
count = (len(self.varnames), self.regex.n_groups)
error = '%s variables, but regex has %s groups' % count
lexer.syntax_error(error, self)
# Handle the "from" keyword.
lexer.skip('whitespace')
if lexer.next_if('keyword', 'from'):
lexer.expect(self, 'whitespace')
self.source = Term(lexer, parser, parent)
self.mark_end()
def __init__(self, lexer, parser, parent):
Token.__init__(self, "Extract", lexer, parser, parent)
self.varnames = []
self.variables = {}
self.append = False
self.source = None
if parser.no_prompt:
msg = "'extract' keyword does not work with --no-prompt"
lexer.syntax_error(msg, self)
# First expect a regular expression.
lexer.expect(self, "keyword", "extract")
lexer.expect(self, "whitespace")
self.regex = Regex(lexer, parser, parent)
# Expect "as" keyword.
lexer.expect(self, "whitespace")
if lexer.next_if("keyword", "as"):
self.append = False
elif lexer.next_if("keyword", "into"):
self.append = True
else:
_, token = lexer.token()
msg = 'Expected "as" or "into" but got %s' % token
lexer.syntax_error(msg, self)
# Expect a list of variable names.
while 1:
# Variable name.
lexer.expect(self, "whitespace")
_, token = lexer.token()
lexer.expect(self, "varname")
if token in self.variables:
lexer.syntax_error("Duplicate variable name %s", self)
self.varnames.append(token)
self.variables[token] = []
# Comma.
if lexer.next_if("comma"):
continue
break
self.parent.define(**self.variables)
if len(self.varnames) != self.regex.n_groups:
count = (len(self.varnames), self.regex.n_groups)
error = "%s variables, but regex has %s groups" % count
lexer.syntax_error(error, self)
# Handle the "from" keyword.
lexer.skip("whitespace")
if lexer.next_if("keyword", "from"):
lexer.expect(self, "whitespace")
self.source = Term(lexer, parser, parent)
self.mark_end()
class Extract(Token):
def __init__(self, lexer, parser, parent):
Token.__init__(self, 'Extract', lexer, parser, parent)
self.varnames = []
self.variables = {}
self.append = False
self.source = None
if parser.no_prompt:
msg = "'extract' keyword does not work with --no-prompt"
lexer.syntax_error(msg, self)
# First expect a regular expression.
lexer.expect(self, 'keyword', 'extract')
lexer.expect(self, 'whitespace')
self.regex = Regex(lexer, parser, parent)
# Expect "as" keyword.
lexer.expect(self, 'whitespace')
if lexer.next_if('keyword', 'as'):
self.append = False
elif lexer.next_if('keyword', 'into'):
self.append = True
else:
_, token = lexer.token()
msg = 'Expected "as" or "into" but got %s' % token
lexer.syntax_error(msg, self)
# Expect a list of variable names.
while 1:
# Variable name.
lexer.expect(self, 'whitespace')
_, token = lexer.token()
lexer.expect(self, 'varname')
if token in self.variables:
lexer.syntax_error('Duplicate variable name %s', self)
self.varnames.append(token)
self.variables[token] = []
# Comma.
if lexer.next_if('comma'):
continue
break
self.parent.define(**self.variables)
if len(self.varnames) != self.regex.n_groups:
count = (len(self.varnames), self.regex.n_groups)
error = '%s variables, but regex has %s groups' % count
lexer.syntax_error(error, self)
# Handle the "from" keyword.
lexer.skip('whitespace')
if lexer.next_if('keyword', 'from'):
lexer.expect(self, 'whitespace')
self.source = Term(lexer, parser, parent)
self.mark_end()
def extract(self, context):
# Re-initialize the variable content, because this method
# might be called multiple times.
for varname in self.varnames:
self.variables[varname] = []
if self.source is None:
buffer = self.parent.get('__response__')
else:
buffer = self.source.value(context)
#print "Buffer contains", buffer
# Walk through all lines, matching each one against the regular
# expression.
for line in buffer:
match = self.regex.value(context).search(line)
if match is None:
continue
# If there was a match, store the extracted substrings in our
# list variables.
i = 0
for varname in self.varnames:
i += 1
try:
value = match.group(i)
except IndexError:
# This happens if the user provided a regex with less
# groups in it than the number of variables.
msg = 'Extract: %s variables, but regular expression' % i
msg += '\ncontains only %s groups.' % (i - 1)
self.lexer.runtime_error(msg, self)
self.variables[varname].append(value)
def value(self, context):
self.extract(context)
if not self.append:
self.parent.define(**self.variables)
else:
for key in self.variables:
existing = self.parent.get(key)
self.parent.define(**{key: existing + self.variables[key]})
return 1
def dump(self, indent = 0):
mode = self.append and 'into' or 'as'
source = self.source is not None and self.source or 'buffer'
print (' ' * indent) + self.name, self.regex.string,
print mode, self.varnames, "from", source
class Extract(Token):
def __init__(self, lexer, parser, parent):
Token.__init__(self, "Extract", lexer, parser, parent)
self.varnames = []
self.variables = {}
self.append = False
self.source = None
if parser.no_prompt:
msg = "'extract' keyword does not work with --no-prompt"
lexer.syntax_error(msg, self)
# First expect a regular expression.
lexer.expect(self, "keyword", "extract")
lexer.expect(self, "whitespace")
self.regex = Regex(lexer, parser, parent)
# Expect "as" keyword.
lexer.expect(self, "whitespace")
if lexer.next_if("keyword", "as"):
self.append = False
elif lexer.next_if("keyword", "into"):
self.append = True
else:
_, token = lexer.token()
msg = 'Expected "as" or "into" but got %s' % token
lexer.syntax_error(msg, self)
# Expect a list of variable names.
while 1:
# Variable name.
lexer.expect(self, "whitespace")
_, token = lexer.token()
lexer.expect(self, "varname")
if token in self.variables:
lexer.syntax_error("Duplicate variable name %s", self)
self.varnames.append(token)
self.variables[token] = []
# Comma.
if lexer.next_if("comma"):
continue
break
self.parent.define(**self.variables)
if len(self.varnames) != self.regex.n_groups:
count = (len(self.varnames), self.regex.n_groups)
error = "%s variables, but regex has %s groups" % count
lexer.syntax_error(error, self)
# Handle the "from" keyword.
lexer.skip("whitespace")
if lexer.next_if("keyword", "from"):
lexer.expect(self, "whitespace")
self.source = Term(lexer, parser, parent)
self.mark_end()
def extract(self, context):
# Re-initialize the variable content, because this method
# might be called multiple times.
for varname in self.varnames:
self.variables[varname] = []
if self.source is None:
buffer = self.parent.get("__response__")
else:
buffer = self.source.value(context)
# print "Buffer contains", buffer
# Walk through all lines, matching each one against the regular
# expression.
for line in buffer:
match = self.regex.value(context).search(line)
if match is None:
continue
# If there was a match, store the extracted substrings in our
# list variables.
i = 0
for varname in self.varnames:
i += 1
try:
value = match.group(i)
except IndexError:
# This happens if the user provided a regex with less
# groups in it than the number of variables.
msg = "Extract: %s variables, but regular expression" % i
msg += "\ncontains only %s groups." % (i - 1)
self.lexer.runtime_error(msg, self)
self.variables[varname].append(value)
def value(self, context):
self.extract(context)
if not self.append:
self.parent.define(**self.variables)
else:
for key in self.variables:
existing = self.parent.get(key)
self.parent.define(**{key: existing + self.variables[key]})
return 1
def dump(self, indent=0):
mode = self.append and "into" or "as"
source = self.source is not None and self.source or "buffer"
print (" " * indent) + self.name, self.regex.string,
print mode, self.varnames, "from", source
