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| author | Eli Bendersky <eliben@gmail.com> | 2016-10-10 06:57:53 -0700 |
|---|---|---|
| committer | Eli Bendersky <eliben@gmail.com> | 2016-10-10 06:57:53 -0700 |
| commit | f0e7954063b1414e0756dbb7a7056b4017e57c4e (patch) | |
| tree | 863995346d085cdc7c6e9905e70323c7898d227c | |
| parent | 6db253a4715846a407ce17f9da7df44db475ac84 (diff) | |
| download | pycparser-f0e7954063b1414e0756dbb7a7056b4017e57c4e.tar.gz | |
Improve the behavior of pathological bad string literals a bit.
By making the first * non-greedy, performance is ~10-15% better; it still
demonstrates pahological backtracking slowness (issue #61).
| -rw-r--r-- | pycparser/c_lexer.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/pycparser/c_lexer.py b/pycparser/c_lexer.py index b5a636c..c7443b8 100644 --- a/pycparser/c_lexer.py +++ b/pycparser/c_lexer.py @@ -221,7 +221,7 @@ class CLexer(object): string_char = r"""([^"\\\n]|"""+escape_sequence+')' string_literal = '"'+string_char+'*"' wstring_literal = 'L'+string_literal - bad_string_literal = '"'+string_char+'*'+bad_escape+string_char+'*"' + bad_string_literal = '"'+string_char+'*?'+bad_escape+string_char+'*"' # floating constants (K&R2: A.2.5.3) exponent_part = r"""([eE][-+]?[0-9]+)""" |