diff options
Diffstat (limited to 'Parser')
| -rw-r--r-- | Parser/pegen/parse_string.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/Parser/pegen/parse_string.c b/Parser/pegen/parse_string.c index f1df2c4..af350b3 100644 --- a/Parser/pegen/parse_string.c +++ b/Parser/pegen/parse_string.c @@ -444,12 +444,23 @@ fstring_find_literal(Parser *p, const char **str, const char *end, int raw, if (!raw && ch == '\\' && s < end) { ch = *s++; if (ch == 'N') { + /* We need to look at and skip matching braces for "\N{name}" + sequences because otherwise we'll think the opening '{' + starts an expression, which is not the case with "\N". + Keep looking for either a matched '{' '}' pair, or the end + of the string. */ + if (s < end && *s++ == '{') { while (s < end && *s++ != '}') { } continue; } - break; + + /* This is an invalid "\N" sequence, since it's a "\N" not + followed by a "{". Just keep parsing this literal. This + error will be caught later by + decode_unicode_with_escapes(). */ + continue; } if (ch == '{' && warn_invalid_escape_sequence(p, ch, t) < 0) { return -1; @@ -493,7 +504,8 @@ done: *literal = PyUnicode_DecodeUTF8Stateful(literal_start, s - literal_start, NULL, NULL); - } else { + } + else { *literal = decode_unicode_with_escapes(p, literal_start, s - literal_start, t); } |