+// same for docstring
+docstring Lexer::quoteString(docstring const & arg)
+{
+ docstring res;
+ res += '"';
+ res += subst(subst(arg, from_ascii("\\"), from_ascii("\\\\")),
+ from_ascii("\""), from_ascii("\\\""));
+ res += '"';
+ return res;
+}
+
+
+Lexer & Lexer::operator>>(char const * required)
+{
+ string token;
+ *this >> token;
+ if (token != required) {
+ LYXERR0("Missing '" << required << "'-tag in " << pimpl_->context
+ << ". Got " << token << " instead. Line: " << lineNumber());
+ pushToken(token);
+ }
+ return *this;
+}
+
+
+bool Lexer::checkFor(char const * required)
+{
+ string token;
+ *this >> token;
+ if (token == required)
+ return true;
+ pushToken(token);
+ return false;
+}
+
+
+void Lexer::setContext(std::string const & functionName)
+{
+ pimpl_->context = functionName;
+}
+
+