def test_push_accepts_more2(self):
isp = self.isp
isp.push('if 1:')
self.assertEqual(isp.push_accepts_more(), True)
isp.push(' x=1')
self.assertEqual(isp.push_accepts_more(), True)
isp.push('')
self.assertEqual(isp.push_accepts_more(), False)
def test_push_accepts_more2(self):
isp = self.isp
isp.push('if 1:')
self.assertEqual(isp.push_accepts_more(), True)
isp.push(' x=1')
self.assertEqual(isp.push_accepts_more(), True)
isp.push('')
self.assertEqual(isp.push_accepts_more(), False)
def test_line_continuation(self):
""" Test issue #2108."""
isp = self.isp
# A blank line after a line continuation should not accept more
isp.push("1 \\\n\n")
self.assertEqual(isp.push_accepts_more(), False)
# Whitespace after a \ is a SyntaxError. The only way to test that
# here is to test that push doesn't accept more (as with
# test_syntax_error() above).
isp.push(r"1 \ ")
self.assertEqual(isp.push_accepts_more(), False)
# Even if the line is continuable (c.f. the regular Python
# interpreter)
isp.push(r"(1 \ ")
self.assertEqual(isp.push_accepts_more(), False)
def test_line_continuation(self):
""" Test issue #2108."""
isp = self.isp
# A blank line after a line continuation should not accept more
isp.push("1 \\\n\n")
self.assertEqual(isp.push_accepts_more(), False)
# Whitespace after a \ is a SyntaxError. The only way to test that
# here is to test that push doesn't accept more (as with
# test_syntax_error() above).
isp.push(r"1 \ ")
self.assertEqual(isp.push_accepts_more(), False)
# Even if the line is continuable (c.f. the regular Python
# interpreter)
isp.push(r"(1 \ ")
self.assertEqual(isp.push_accepts_more(), False)
def test_syntax_error(self):
isp = self.isp
# Syntax errors immediately produce a 'ready' block, so the invalid
# Python can be sent to the kernel for evaluation with possible ipython
# special-syntax conversion.
isp.push('run foo')
self.assertEqual(isp.push_accepts_more(), False)
def test_syntax_error(self):
isp = self.isp
# Syntax errors immediately produce a 'ready' block, so the invalid
# Python can be sent to the kernel for evaluation with possible ipython
# special-syntax conversion.
isp.push('run foo')
self.assertEqual(isp.push_accepts_more(), False)
def test_push_accepts_more4(self):
isp = self.isp
# When a multiline statement contains parens or multiline strings, we
# shouldn't get confused.
# FIXME: we should be able to better handle de-dents in statements like
# multiline strings and multiline expressions (continued with \ or
# parens). Right now we aren't handling the indentation tracking quite
# correctly with this, though in practice it may not be too much of a
# problem. We'll need to see.
isp.push("if 1:")
isp.push(" x = (2+")
isp.push(" 3)")
self.assertEqual(isp.push_accepts_more(), True)
isp.push(" y = 3")
self.assertEqual(isp.push_accepts_more(), True)
isp.push('')
self.assertEqual(isp.push_accepts_more(), False)
def test_push_accepts_more4(self):
isp = self.isp
# When a multiline statement contains parens or multiline strings, we
# shouldn't get confused.
# FIXME: we should be able to better handle de-dents in statements like
# multiline strings and multiline expressions (continued with \ or
# parens). Right now we aren't handling the indentation tracking quite
# correctly with this, though in practice it may not be too much of a
# problem. We'll need to see.
isp.push("if 1:")
isp.push(" x = (2+")
isp.push(" 3)")
self.assertEqual(isp.push_accepts_more(), True)
isp.push(" y = 3")
self.assertEqual(isp.push_accepts_more(), True)
isp.push('')
self.assertEqual(isp.push_accepts_more(), False)
def test_push_accepts_more5(self):
isp = self.isp
isp.push('try:')
isp.push(' a = 5')
isp.push('except:')
isp.push(' raise')
# We want to be able to add an else: block at this point, so it should
# wait for a blank line.
self.assertEqual(isp.push_accepts_more(), True)
def test_push_accepts_more5(self):
isp = self.isp
isp.push('try:')
isp.push(' a = 5')
isp.push('except:')
isp.push(' raise')
# We want to be able to add an else: block at this point, so it should
# wait for a blank line.
self.assertEqual(isp.push_accepts_more(), True)
def mini_interactive_loop(input_func):
"""Minimal example of the logic of an interactive interpreter loop.
This serves as an example, and it is used by the test system with a fake
raw_input that simulates interactive input."""
from yap_ipython.core.inputsplitter import InputSplitter
isp = InputSplitter()
# In practice, this input loop would be wrapped in an outside loop to read
# input indefinitely, until some exit/quit command was issued. Here we
# only illustrate the basic inner loop.
while isp.push_accepts_more():
indent = ' ' * isp.get_indent_spaces()
prompt = '>>> ' + indent
line = indent + input_func(prompt)
isp.push(line)
# Here we just return input so we can use it in a test suite, but a real
# interpreter would instead send it for execution somewhere.
src = isp.source_reset()
#print 'Input source was:\n', src # dbg
return src
def mini_interactive_loop(input_func):
"""Minimal example of the logic of an interactive interpreter loop.
This serves as an example, and it is used by the test system with a fake
raw_input that simulates interactive input."""
from yap_ipython.core.inputsplitter import InputSplitter
isp = InputSplitter()
# In practice, this input loop would be wrapped in an outside loop to read
# input indefinitely, until some exit/quit command was issued. Here we
# only illustrate the basic inner loop.
while isp.push_accepts_more():
indent = ' '*isp.get_indent_spaces()
prompt = '>>> ' + indent
line = indent + input_func(prompt)
isp.push(line)
# Here we just return input so we can use it in a test suite, but a real
# interpreter would instead send it for execution somewhere.
src = isp.source_reset()
#print 'Input source was:\n', src # dbg
return src
def test_continuation(self):
isp = self.isp
isp.push("import os, \\")
self.assertEqual(isp.push_accepts_more(), True)
isp.push("sys")
self.assertEqual(isp.push_accepts_more(), False)
def test_push_accepts_more3(self):
isp = self.isp
isp.push("x = (2+\n3)")
self.assertEqual(isp.push_accepts_more(), False)
def test_push_accepts_more(self):
isp = self.isp
isp.push('x=1')
self.assertEqual(isp.push_accepts_more(), False)
def test_push_accepts_more(self):
isp = self.isp
isp.push('x=1')
self.assertEqual(isp.push_accepts_more(), False)
def test_continuation(self):
isp = self.isp
isp.push("import os, \\")
self.assertEqual(isp.push_accepts_more(), True)
isp.push("sys")
self.assertEqual(isp.push_accepts_more(), False)
def test_push_accepts_more3(self):
isp = self.isp
isp.push("x = (2+\n3)")
self.assertEqual(isp.push_accepts_more(), False)
if __name__ == '__main__':
# A simple demo for interactive experimentation. This code will not get
# picked up by any test suite.
from yap_ipython.core.inputsplitter import IPythonInputSplitter
# configure here the syntax to use, prompt and whether to autoindent
#isp, start_prompt = InputSplitter(), '>>> '
isp, start_prompt = IPythonInputSplitter(), 'In> '
autoindent = True
#autoindent = False
try:
while True:
prompt = start_prompt
while isp.push_accepts_more():
indent = ' ' * isp.get_indent_spaces()
if autoindent:
line = indent + input(prompt + indent)
else:
line = input(prompt)
isp.push(line)
prompt = '... '
# Here we just return input so we can use it in a test suite, but a
# real interpreter would instead send it for execution somewhere.
#src = isp.source; raise EOFError # dbg
raw = isp.source_raw
src = isp.source_reset()
print('Input source was:\n', src)
print('Raw source was:\n', raw)
if __name__ == '__main__':
# A simple demo for interactive experimentation. This code will not get
# picked up by any test suite.
from yap_ipython.core.inputsplitter import IPythonInputSplitter
# configure here the syntax to use, prompt and whether to autoindent
#isp, start_prompt = InputSplitter(), '>>> '
isp, start_prompt = IPythonInputSplitter(), 'In> '
autoindent = True
#autoindent = False
try:
while True:
prompt = start_prompt
while isp.push_accepts_more():
indent = ' '*isp.get_indent_spaces()
if autoindent:
line = indent + input(prompt+indent)
else:
line = input(prompt)
isp.push(line)
prompt = '... '
# Here we just return input so we can use it in a test suite, but a
# real interpreter would instead send it for execution somewhere.
#src = isp.source; raise EOFError # dbg
raw = isp.source_raw
src = isp.source_reset()
print('Input source was:\n', src)
print('Raw source was:\n', raw)
