From 27dc324608a8c83afa47b296c52b7d6c9aa8795e Mon Sep 17 00:00:00 2001 From: ptmcg Date: Sun, 25 Oct 2020 14:42:07 -0500 Subject: minor perf changes II --- pyparsing/util.py | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'pyparsing/util.py') diff --git a/pyparsing/util.py b/pyparsing/util.py index 152316c..3cb69d2 100644 --- a/pyparsing/util.py +++ b/pyparsing/util.py @@ -143,14 +143,16 @@ def _collapseStringToRanges(s, re_escape=True): def escape_re_range_char(c): return "\\" + c if c in r"\^-][" else c + def no_escape_re_range_char(c): + return c + if not re_escape: - escape_re_range_char = lambda c: c + escape_re_range_char = no_escape_re_range_char ret = [] for _, chars in itertools.groupby(sorted(s), key=is_consecutive): first = last = next(chars) - for c in chars: - last = c + last = collections.deque(itertools.chain(iter([last]), chars), maxlen=1).pop() if first == last: ret.append(escape_re_range_char(first)) else: -- cgit v1.2.1