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-rw-r--r--yt_dlp/jsinterp.py15
1 files changed, 15 insertions, 0 deletions
diff --git a/yt_dlp/jsinterp.py b/yt_dlp/jsinterp.py
index 3f7d659ac..c2d056aa1 100644
--- a/yt_dlp/jsinterp.py
+++ b/yt_dlp/jsinterp.py
@@ -403,10 +403,25 @@ class JSInterpreter:
m = re.match(r'''(?x)
(?P<try>try)\s*\{|
+ (?P<if>if)\s*\(|
(?P<switch>switch)\s*\(|
(?P<for>for)\s*\(
''', expr)
md = m.groupdict() if m else {}
+ if md.get('if'):
+ cndn, expr = self._separate_at_paren(expr[m.end() - 1:])
+ if_expr, expr = self._separate_at_paren(expr.lstrip())
+ # TODO: "else if" is not handled
+ else_expr = None
+ m = re.match(r'else\s*{', expr)
+ if m:
+ else_expr, expr = self._separate_at_paren(expr[m.end() - 1:])
+ cndn = _js_ternary(self.interpret_expression(cndn, local_vars, allow_recursion))
+ ret, should_abort = self.interpret_statement(
+ if_expr if cndn else else_expr, local_vars, allow_recursion)
+ if should_abort:
+ return ret, True
+
if md.get('try'):
try_expr, expr = self._separate_at_paren(expr[m.end() - 1:])
err = None