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Escape control characters in JSON output.

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This commit is contained in:
Rolf Timmermans 2014-12-21 00:04:39 +01:00
parent 34d6800092
commit fc30518be9
1 changed files with 12 additions and 8 deletions
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20
src/libserialize/json.rs
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@ -331,13 +331,14 @@ pub fn escape_bytes(wr: &mut io::Writer, bytes: &[u8]) -> Result<(), io::IoError
for (i, byte) in bytes.iter().enumerate() {
let escaped = match *byte {
b'"' => "\\\"",
b'\\' => "\\\\",
b'\x08' => "\\b",
b'\x0c' => "\\f",
b'\n' => "\\n",
b'\r' => "\\r",
b'\t' => "\\t",
b'"' => "\\\"".into_cow(),
b'\\' => "\\\\".into_cow(),
b'\x08' => "\\b".into_cow(),
b'\x0c' => "\\f".into_cow(),
b'\n' => "\\n".into_cow(),
b'\r' => "\\r".into_cow(),
b'\t' => "\\t".into_cow(),
b'\x00'...b'\x1f' | b'\x7f' => format!("\\u00{:0>2x}", *byte).into_cow(),
_ => { continue; }
};
@ -345,7 +346,7 @@ pub fn escape_bytes(wr: &mut io::Writer, bytes: &[u8]) -> Result<(), io::IoError
try!(wr.write(bytes[start..i]));
}
try!(wr.write_str(escaped));
try!(wr.write_str(escaped.deref()));
start = i + 1;
}
@ -2731,6 +2732,9 @@ mod tests {
fn test_write_char() {
check_encoder_for_simple!('a', "\"a\"");
check_encoder_for_simple!('\t', "\"\\t\"");
check_encoder_for_simple!('\u{0000}', "\"\\u0000\"");
check_encoder_for_simple!('\u{001b}', "\"\\u001b\"");
check_encoder_for_simple!('\u{007f}', "\"\\u007f\"");
check_encoder_for_simple!('\u{00a0}', "\"\u{00a0}\"");
check_encoder_for_simple!('\u{abcd}', "\"\u{abcd}\"");
check_encoder_for_simple!('\u{10ffff}', "\"\u{10ffff}\"");