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AK: Properly parse unimplemented format length specifiers

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This keeps us from stopping early and not rendering the argument at all.
This commit is contained in:
Tim Schumacher 2022-03-11 21:18:33 +01:00 committed by Ali Mohammad Pur
parent b4eb21db4d
commit dd71754d10
Notes: sideshowbarker 2024-07-17 17:32:41 +09:00 
Author: https://github.com/timschumi
Commit: https://github.com/SerenityOS/serenity/commit/dd71754d10
Pull-request: https://github.com/SerenityOS/serenity/pull/13006
1 changed files with 21 additions and 3 deletions
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24
AK/PrintfImplementation.h
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@ -318,8 +318,12 @@ struct ModifierState {
unsigned field_width { 0 };
bool has_precision { false };
unsigned precision { 6 };
unsigned short_qualifiers { 0 }; // TODO: Unimplemented.
unsigned long_qualifiers { 0 };
bool size_qualifier { false };
bool intmax_qualifier { false }; // TODO: Unimplemented.
bool ptrdiff_qualifier { false }; // TODO: Unimplemented.
bool long_double_qualifier { false }; // TODO: Unimplemented.
bool size_qualifier { false }; // TODO: Unimplemented.
bool alternate_form { 0 };
bool always_sign { false };
};
@ -499,14 +503,28 @@ ALWAYS_INLINE int printf_internal(PutChFunc putch, IdentityType<CharType>* buffe
if (*(p + 1))
goto one_more;
}
if (*p == 'h') {
++state.short_qualifiers;
if (*(p + 1))
goto one_more;
}
if (*p == 'l') {
++state.long_qualifiers;
if (*(p + 1))
goto one_more;
}
if (*p == 'j') {
state.intmax_qualifier = true;
if (*(p + 1))
goto one_more;
}
if (*p == 't') {
state.ptrdiff_qualifier = true;
if (*(p + 1))
goto one_more;
}
if (*p == 'L') {
// TODO: Implement this properly.
// For now just swallow, so the contents are actually rendered.
state.long_double_qualifier = true;
if (*(p + 1))
goto one_more;
}