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CppLexer: Correctly highlight hex escapes in string and char literals

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\x consumes all hex digits following it. (If the resulting number
then doesn't fit in the character type, the compiler emits an
error.)

\x would be much more convenient to use if it was always followed
by exactly two hex digits (with \u and \U for higher codepoints),
but that's sadly not the world we live in.
This commit is contained in:
Nico Weber 2020-07-26 20:59:22 -04:00 • committed by Andreas Kling
commit 34dc163441
Notes: sideshowbarker 2024-07-19 04:34:36 +09:00
1 changed files with 1 additions and 4 deletions
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5
Libraries/LibGUI/CppLexer.cpp
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@ -287,11 +287,8 @@ Vector<CppToken> CppLexer::lex()
}
case 'x': {
size_t hex_digits = 0;
for (size_t i = 0; i < 2; ++i) {
if (!isxdigit(peek(2 + i)))
break;
while (isxdigit(peek(2 + hex_digits)))
++hex_digits;
}
return 2 + hex_digits;
}
case 'u':