def ext_nonstandard_escape : Extension<
"use of non-standard escape character '\\%0'">;
def ext_unknown_escape : ExtWarn<"unknown escape sequence '\\%0'">;
-def err_hex_escape_no_digits : Error<"\\x used with no following hex digits">;
-def err_ucn_escape_no_digits : Error<"\\u used with no following hex digits">;
+def err_hex_escape_no_digits : Error<"\\%0 used with no following hex digits">;
def err_ucn_escape_invalid : Error<"invalid universal character">;
def err_ucn_escape_incomplete : Error<"incomplete universal character name">;
def err_ucn_escape_basic_scs : Error<
if (ThisTokBuf == ThisTokEnd || !isxdigit(*ThisTokBuf)) {
if (Diags)
Diag(Diags, Features, Loc, ThisTokBegin, EscapeBegin, ThisTokBuf,
- diag::err_hex_escape_no_digits);
+ diag::err_hex_escape_no_digits) << "x";
HadError = 1;
break;
}
if (ThisTokBuf == ThisTokEnd || !isxdigit(*ThisTokBuf)) {
if (Diags)
Diag(Diags, Features, Loc, ThisTokBegin, UcnBegin, ThisTokBuf,
- diag::err_ucn_escape_no_digits);
+ diag::err_hex_escape_no_digits) << StringRef(&ThisTokBuf[-1], 1);
return false;
}
UcnLen = (ThisTokBuf[-1] == 'u' ? 4 : 8);
printf("%s (%zd)\n", "hello \u2192 \u2603 \u2190 world", sizeof("hello \u2192 \u2603 \u2190 world"));
printf("%s (%zd)\n", "\U00010400\U0001D12B", sizeof("\U00010400\U0001D12B"));
// Some error conditions...
- printf("%s\n", "\U"); // expected-error{{\u used with no following hex digits}}
+ printf("%s\n", "\U"); // expected-error{{\U used with no following hex digits}}
printf("%s\n", "\U00"); // expected-error{{incomplete universal character name}}
printf("%s\n", "\U0001"); // expected-error{{incomplete universal character name}}
printf("%s\n", "\u0001"); // expected-error{{universal character name refers to a control character}}