From 76ac69917ec76ba663da843795f46916831e6da9 Mon Sep 17 00:00:00 2001 From: dirkf Date: Wed, 10 Jul 2024 18:02:11 +0100 Subject: [PATCH] [jsinterp] Further improve expression parsing (fix fd8242e) Passes tests from yt-dlp --- youtube_dl/jsinterp.py | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/youtube_dl/jsinterp.py b/youtube_dl/jsinterp.py index 799497acb..a2074a91e 100644 --- a/youtube_dl/jsinterp.py +++ b/youtube_dl/jsinterp.py @@ -804,16 +804,19 @@ class JSInterpreter(object): if op in ('+', '-'): # simplify/adjust consecutive instances of these operators undone = 0 - while len(separated) > 1 and not separated[-1].strip(): + separated = [s.strip() for s in separated] + while len(separated) > 1 and not separated[-1]: undone += 1 separated.pop() if op == '-' and undone % 2 != 0: right_expr = op + right_expr elif op == '+': - while len(separated) > 1 and separated[-1].strip() in self.OP_CHARS: + while len(separated) > 1 and set(separated[-1]) <= self.OP_CHARS: + right_expr = separated.pop() + right_expr + if separated[-1][-1:] in self.OP_CHARS: right_expr = separated.pop() + right_expr # hanging op at end of left => unary + (strip) or - (push right) - left_val = separated[-1] + left_val = separated[-1] if separated else '' for dm_op in ('*', '%', '/', '**'): bodmas = tuple(self._separate(left_val, dm_op, skip_delims=skip_delim)) if len(bodmas) > 1 and not bodmas[-1].strip():