class Append(Token):
def __init__(self, lexer, parser, parent):
Token.__init__(self, 'Append', lexer, parser, parent)
# First expect an expression.
lexer.expect(self, 'keyword', 'append')
lexer.expect(self, 'whitespace')
self.expr = Term(lexer, parser, parent)
# Expect "to" keyword.
lexer.expect(self, 'whitespace')
lexer.expect(self, 'keyword', 'to')
# Expect a variable name.
lexer.expect(self, 'whitespace')
_, self.varname = lexer.token()
lexer.expect(self, 'varname')
self.parent.define(**{self.varname: []})
self.mark_end()
def value(self, context):
existing = self.parent.get(self.varname)
args = {self.varname: existing + self.expr.value(context)}
self.parent.define(**args)
return 1
def dump(self, indent=0):
print(' ' * indent) + self.name, "to", self.varname
self.expr.dump(indent + 1)
class Append(Token):
def __init__(self, lexer, parser, parent):
Token.__init__(self, 'Append', lexer, parser, parent)
# First expect an expression.
lexer.expect(self, 'keyword', 'append')
lexer.expect(self, 'whitespace')
self.expr = Term(lexer, parser, parent)
# Expect "to" keyword.
lexer.expect(self, 'whitespace')
lexer.expect(self, 'keyword', 'to')
# Expect a variable name.
lexer.expect(self, 'whitespace')
_, self.varname = lexer.token()
lexer.expect(self, 'varname')
self.parent.define(**{self.varname: []})
self.mark_end()
def value(self, context):
existing = self.parent.get(self.varname)
args = {self.varname: existing + self.expr.value(context)}
self.parent.define(**args)
return 1
def dump(self, indent = 0):
print((' ' * indent) + self.name, "to", self.varname)
self.expr.dump(indent + 1)
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, 'Append', lexer, parser, parent)
# First expect an expression.
lexer.expect(self, 'keyword', 'append')
lexer.expect(self, 'whitespace')
self.expr = Term(lexer, parser, parent)
# Expect "to" keyword.
lexer.expect(self, 'whitespace')
lexer.expect(self, 'keyword', 'to')
# Expect a variable name.
lexer.expect(self, 'whitespace')
_, self.varname = lexer.token()
lexer.expect(self, 'varname')
self.parent.define(**{self.varname: []})
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, 'Append', lexer, parser, parent)
# First expect an expression.
lexer.expect(self, 'keyword', 'append')
lexer.expect(self, 'whitespace')
self.expr = Term(lexer, parser, parent)
# Expect "to" keyword.
lexer.expect(self, 'whitespace')
lexer.expect(self, 'keyword', 'to')
# Expect a variable name.
lexer.expect(self, 'whitespace')
_, self.varname = lexer.token()
lexer.expect(self, 'varname')
self.parent.define(**{self.varname: []})
self.mark_end()
def __init__(self, lexer, parser, parent):
Token.__init__(self, 'Loop', lexer, parser, parent)
self.during = None
self.until = None
self.thefrom = None
self.theto = None
self.list_variables = []
self.iter_varnames = []
# Expect one ore more lists.
lexer.expect(self, 'keyword', 'loop')
lexer.expect(self, 'whitespace')
if not lexer.current_is('keyword', 'while') and \
not lexer.current_is('keyword', 'until') and \
not lexer.current_is('keyword', 'from'):
self.list_variables = [Term(lexer, parser, parent)]
lexer.next_if('whitespace')
while lexer.next_if('comma'):
lexer.skip(['whitespace', 'newline'])
self.list_variables.append(Term(lexer, parser, parent))
lexer.skip(['whitespace', 'newline'])
# Expect the "as" keyword.
lexer.expect(self, 'keyword', 'as')
# The iterator variable.
lexer.next_if('whitespace')
_, iter_varname = lexer.token()
lexer.expect(self, 'varname')
parent.define(**{iter_varname: []})
self.iter_varnames = [iter_varname]
lexer.next_if('whitespace')
while lexer.next_if('comma'):
lexer.skip(['whitespace', 'newline'])
_, iter_varname = lexer.token()
lexer.expect(self, 'varname')
parent.define(**{iter_varname: []})
self.iter_varnames.append(iter_varname)
lexer.skip(['whitespace', 'newline'])
if len(self.iter_varnames) != len(self.list_variables):
error = '%s lists, but only %s iterators in loop' % (len(self.iter_varnames),
len(self.list_variables))
lexer.syntax_error(error, self)
# Check if this is a "from ... to ..." loop.
if lexer.next_if('keyword', 'from'):
lexer.expect(self, 'whitespace')
self.thefrom = Expression(lexer, parser, parent)
lexer.next_if('whitespace')
lexer.expect(self, 'keyword', 'to')
self.theto = Expression(lexer, parser, parent)
lexer.next_if('whitespace')
if lexer.next_if('keyword', 'as'):
lexer.next_if('whitespace')
_, iter_varname = lexer.token()
lexer.expect(self, 'varname')
lexer.next_if('whitespace')
else:
iter_varname = 'counter'
parent.define(**{iter_varname: []})
self.iter_varnames = [iter_varname]
# Check if this is a "while" loop.
if lexer.next_if('keyword', 'while'):
lexer.expect(self, 'whitespace')
self.during = Expression(lexer, parser, parent)
lexer.next_if('whitespace')
# Check if this is an "until" loop.
if lexer.next_if('keyword', 'until'):
lexer.expect(self, 'whitespace')
self.until = Expression(lexer, parser, parent)
lexer.next_if('whitespace')
# End of statement.
self.mark_end()
# Body of the loop block.
lexer.skip(['whitespace', 'newline'])
self.block = Code.Code(lexer, parser, parent)
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
