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Escape ASCII non-printable string contents.

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This commit is contained in:
Natalie Weizenbaum 2016-10-17 17:56:39 -07:00
parent 98f1c7dca3
commit 45becee133
1 changed files with 31 additions and 2 deletions
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33
lib/src/visitor/serialize.dart
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@ -526,11 +526,40 @@ class _SerializeCssVisitor
} }
break; break;
case $cr: // Write newline characters and unprintable ASCII characters as escapes.
case $nul:
case $soh:
case $stx:
case $etx:
case $eot:
case $enq:
case $ack:
case $bel:
case $lf: case $lf:
case $vt:
case $ff: case $ff:
case $cr:
case $so:
case $si:
case $dle:
case $dc1:
case $dc2:
case $dc3:
case $dc4:
case $nak:
case $syn:
case $etb:
case $can:
case $em:
case $sub:
case $esc:
case $fs:
case $gs:
case $rs:
case $us:
buffer.writeCharCode($backslash); buffer.writeCharCode($backslash);
buffer.writeCharCode(hexCharFor(char)); if (char > 0xF) buffer.writeCharCode(hexCharFor(char >> 4));
buffer.writeCharCode(hexCharFor(char & 0xF));
if (string.length == i + 1) break; if (string.length == i + 1) break;
var next = string.codeUnitAt(i + 1); var next = string.codeUnitAt(i + 1);