- if (!os.latex()) {
- os << str_;
- return;
- }
-
- docstring::const_iterator cit = str_.begin();
- docstring::const_iterator end = str_.end();
-
- bool in_forced_mode = false;
- while (cit != end) {
- char_type const c = *cit;
- try {
- docstring command(1, c);
- if (c < 0x80 || Encodings::latexMathChar(c, command)) {
- if (os.textMode()) {
- if (c < 0x80 && in_forced_mode) {
- os << '}';
- in_forced_mode = false;
- }
- if (c >= 0x80 && !in_forced_mode) {
- os << "\\ensuremath{";
- in_forced_mode = true;
- }
- } else if (in_forced_mode) {
- os << '}';
- in_forced_mode = false;
- }
- } else {
- if (os.textMode()) {
- if (in_forced_mode) {
- os << '}';
- in_forced_mode = false;
- }
- } else if (!in_forced_mode) {
- os << "\\lyxmathsym{";
- in_forced_mode = true;
- }
- }
- os << command;
- // We may need a space if the command contains a macro
- // and the last char is ASCII.
- if (lyx::support::contains(command, '\\')
- && isAlphaASCII(command[command.size() - 1]))
- os.pendingSpace(true);
- } catch (EncodingException & e) {
- if (os.dryrun()) {
- // FIXME: this is OK for View->Source
- // but math preview will likely fail.
- os << "<" << _("LyX Warning: ")
- << _("uncodable character") << " '";
- os << docstring(1, e.failed_char);
- os << "'>";
- } else {
- // throw again
- throw(e);
- }
- }
- ++cit;
- }
- if (in_forced_mode)
- os << '}';