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[3.12] gh-111380: Show SyntaxWarnings only once when parsing if invalid syntax is encouintered (GH-111381) (#111382)

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gh-111380: Show SyntaxWarnings only once when parsing if invalid syntax is encouintered (GH-111381)
(cherry picked from commit 3d2f1f0b83)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
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Miss Islington (bot) 2023-10-27 06:02:17 +02:00 • committed by GitHub
parent a70b2cd2d2
commit 307ca78d7f
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3 changed files with 19 additions and 0 deletions
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5
Parser/string_parser.c
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@ -11,6 +11,11 @@
static int
warn_invalid_escape_sequence(Parser *p, const char *first_invalid_escape, Token *t)
{
if (p->call_invalid_rules) {
// Do not report warnings if we are in the second pass of the parser
// to avoid showing the warning twice.
return 0;
}
unsigned char c = *first_invalid_escape;
if ((t->type == FSTRING_MIDDLE || t->type == FSTRING_END) && (c == '{' || c == '}')) { // in this case the tokenizer has already emitted a warning,
// see tokenizer.c:warn_invalid_escape_sequence