def test_replace_logical_line(src, idx, exp_line, exp_n, xonsh_builtins):
lines = src.splitlines()
logical = exp_line
while idx > 0 and lines[idx - 1].endswith("\\"):
idx -= 1
replace_logical_line(lines, logical, idx, exp_n)
exp = src.replace("\\\n", "").strip()
lc = get_line_continuation() + "\n"
obs = "\n".join(lines).replace(lc, "").strip()
assert exp == obs
def test_replace_logical_line(src, idx, exp_line, exp_n):
lines = src.splitlines()
logical = exp_line
while idx > 0 and lines[idx - 1].endswith("\\"):
idx -= 1
replace_logical_line(lines, logical, idx, exp_n)
exp = src.replace("\\\n", "").strip()
lc = get_line_continuation() + "\n"
obs = "\n".join(lines).replace(lc, "").strip()
assert exp == obs
def LINE_CONT_REPLACEMENT_DIFF():
"""Returns (line_continuation, replacement, diff).
Diff is the diff in length for each replacement.
"""
line_cont = get_line_continuation()
if " \\" == line_cont:
# interactive windows
replacement = " "
else:
replacement = ""
line_cont += "\n"
return line_cont, replacement, len(replacement) - len(line_cont)
def carriage_return(b, cli, *, autoindent=True):
"""Preliminary parser to determine if 'Enter' key should send command to the
xonsh parser for execution or should insert a newline for continued input.
Current 'triggers' for inserting a newline are:
- Not on first line of buffer and line is non-empty
- Previous character is a colon (covers if, for, etc...)
- User is in an open paren-block
- Line ends with backslash
- Any text exists below cursor position (relevant when editing previous
multiline blocks)
"""
doc = b.document
at_end_of_line = _is_blank(doc.current_line_after_cursor)
current_line_blank = _is_blank(doc.current_line)
env = builtins.__xonsh__.env
indent = env.get("INDENT") if autoindent else ""
partial_string_info = check_for_partial_string(doc.text)
in_partial_string = (
partial_string_info[0] is not None and partial_string_info[1] is None
)
# indent after a colon
if doc.current_line_before_cursor.strip().endswith(":") and at_end_of_line:
b.newline(copy_margin=autoindent)
b.insert_text(indent, fire_event=False)
# if current line isn't blank, check dedent tokens
elif (
not current_line_blank
and doc.current_line.split(maxsplit=1)[0] in DEDENT_TOKENS
and doc.line_count > 1
):
b.newline(copy_margin=autoindent)
b.delete_before_cursor(count=len(indent))
elif not doc.on_first_line and not current_line_blank:
b.newline(copy_margin=autoindent)
elif doc.current_line.endswith(get_line_continuation()):
b.newline(copy_margin=autoindent)
elif doc.find_next_word_beginning() is not None and (
any(not _is_blank(i) for i in doc.lines_from_current[1:])
):
b.newline(copy_margin=autoindent)
elif not current_line_blank and not can_compile(doc.text):
b.newline(copy_margin=autoindent)
elif current_line_blank and in_partial_string:
b.newline(copy_margin=autoindent)
else:
b.validate_and_handle()
def compile(self, src):
"""Compiles source code and returns the (possibly modified) source and
a valid code object.
"""
_cache = should_use_cache(self.execer, "single")
if _cache:
codefname = code_cache_name(src)
cachefname = get_cache_filename(codefname, code=True)
usecache, code = code_cache_check(cachefname)
if usecache:
self.reset_buffer()
return src, code
lincont = get_line_continuation()
if src.endswith(lincont + "\n"):
self.need_more_lines = True
return src, None
try:
code = self.execer.compile(
src,
mode="single",
glbs=self.ctx,
locs=None,
filename="<stdin>",
compile_empty_tree=False,
)
if _cache:
update_cache(code, cachefname)
self.reset_buffer()
except SyntaxError:
partial_string_info = check_for_partial_string(src)
in_partial_string = (partial_string_info[0] is not None
and partial_string_info[1] is None)
if (src == "\n" or src.endswith("\n\n")) and not in_partial_string:
self.reset_buffer()
print_exception()
return src, None
self.need_more_lines = True
code = None
except Exception: # pylint: disable=broad-except
self.reset_buffer()
print_exception()
code = None
return src, code
def compile(self, src):
"""Compiles source code and returns the (possibly modified) source and
a valid code object.
"""
_cache = should_use_cache(self.execer, 'single')
if _cache:
codefname = code_cache_name(src)
cachefname = get_cache_filename(codefname, code=True)
usecache, code = code_cache_check(cachefname)
if usecache:
self.reset_buffer()
return src, code
lincont = get_line_continuation()
if src.endswith(lincont+'\n'):
self.need_more_lines = True
return src, None
try:
code = self.execer.compile(src,
mode='single',
glbs=self.ctx,
locs=None)
if _cache:
update_cache(code, cachefname)
self.reset_buffer()
except SyntaxError:
partial_string_info = check_for_partial_string(src)
in_partial_string = (partial_string_info[0] is not None and
partial_string_info[1] is None)
if (src == '\n' or src.endswith('\n\n')) and not in_partial_string:
self.reset_buffer()
print_exception()
return src, None
self.need_more_lines = True
code = None
except Exception: # pylint: disable=broad-except
self.reset_buffer()
print_exception()
code = None
return src, code
