def sub_escapes(sval):
sval = sval.replace('<STR_LIT>', '<STR_LIT>')<EOL>sval = sval.replace('<STR_LIT>', '<STR_LIT:\x00>')<EOL>sval = sval.replace('<STR_LIT>', '<STR_LIT>')<EOL>sval = sval.replace('<STR_LIT>', '<STR_LIT:\n>')<EOL>sval = sval.replace('<STR_LIT>', '<STR_LIT:\r>')<EOL>sval = sval.replace('<STR_LIT>', '<STR_LIT:\t>')<EOL>sval = sval.replace('<STR_LIT>', '<STR_LIT>')<EOL>sval = sval.replace('<STR_LIT>', '<STR_LIT:\\>')<EOL>return sval<EOL>
Process escaped characters in ``sval``.

Arguments:
- `sval`: