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LibPDF: Use is_ascii_hex_digit() instead of isxdigit()

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See description of #7684 for motivation.

Also, makes this code look more like the hex code in
Filter::decode_ascii_hex().

No behavior change.
This commit is contained in:
Nico Weber 2024-02-22 09:41:58 -05:00 • committed by Tim Flynn
parent 6402ad29a6
commit 783b1d1c11
1 changed files with 2 additions and 2 deletions
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4
Userland/Libraries/LibPDF/Parser.cpp
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@ -221,7 +221,7 @@ PDFErrorOr<NonnullRefPtr<NameObject>> Parser::parse_name()
int hex_value = 0;
for (int i = 0; i < 2; i++) {
auto ch = m_reader.consume();
VERIFY(isxdigit(ch));
VERIFY(is_ascii_hex_digit(ch));
hex_value *= 16;
if (ch <= '9') {
hex_value += ch - '0';
@ -370,7 +370,7 @@ PDFErrorOr<ByteString> Parser::parse_hex_string()
return builder.to_byte_string();
}
if (!isxdigit(ch))
if (!is_ascii_hex_digit(ch))
return error("character in hex string isn't hex digit");
hex_value *= 16;