Commit 1af7483c authored by Jelle Zijlstra's avatar Jelle Zijlstra

f-strings: fix nested string literals

parent fc869632
......@@ -1025,18 +1025,34 @@ def p_f_string_expr(s, unicode_value, pos, starting_index):
i = starting_index
size = len(unicode_value)
conversion_char = None
format_spec_str = None
format_spec_str = u''
nested_depth = 0
quote_char = None
in_triple_quotes = False
while True:
if i >= size:
s.error("missing '}' in format string expression")
c = unicode_value[i]
# TODO strings
if c in '{[(':
if quote_char is not None:
if c == '\\':
i += 1
elif c == quote_char:
if in_triple_quotes:
if i + 2 < size and unicode_value[i + 1] == c and unicode_value[i + 2] == c:
in_triple_quotes = False
quote_char = None
i += 2
else:
quote_char = None
elif c in '\'"':
quote_char = c
if i + 2 < size and unicode_value[i + 1] == c and unicode_value[i + 2] == c:
in_triple_quotes = True
i += 2
elif c in '{[(':
nested_depth += 1
elif nested_depth != 0 and c in '}])':
nested_depth -= 1
......@@ -1097,7 +1113,7 @@ def p_f_string_expr(s, unicode_value, pos, starting_index):
buf = StringIO(expr_str)
# scanner = PyrexScanner(buf, code_source, source_encoding = encoding,
# scope = scope, context = context, initial_pos = initial_pos)
scanner = PyrexScanner(buf, code_source, parent_scanner=s) # TODO other params
scanner = PyrexScanner(buf, code_source, parent_scanner=s, source_encoding=s.source_encoding) # TODO other params
expr = p_testlist(scanner) # TODO is testlist right here?
# validate the conversion char
......
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