-// This function escapes 8-bit characters and other problematic characters
-// It's exactly the same code as in insetref.C.
-string InsetLabel::escape(string const & lab) const {
- char hexdigit[16] = { '0', '1', '2', '3', '4', '5', '6', '7',
- '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
- string enc;
- for (string::size_type i= 0; i < lab.length(); ++i) {
- unsigned char c = lab[i];
- if (c >= 128 || c == '=' || c == '%') {
- enc += '=';
- enc += hexdigit[c >> 4];
- enc += hexdigit[c & 15];
- } else {
- enc += c;
- }
- }
- return enc;
-}