less verbose parser

include/cif++/parser.hpp

@@ -221,7 +221,7 @@ class sac_parser
 	void warning(const std::string &msg)
 	{
 		if (cif::VERBOSE > 0)
-			std::cerr << "parser warning at line" << m_line_nr << ": " << msg << std::endl;
+			std::cerr << "parser warning at line " << m_line_nr << ": " << msg << std::endl;
 	}
 
 	// production methods, these are pure virtual here

src/parser.cpp

@@ -222,7 +222,7 @@ sac_parser::CIFToken sac_parser::get_next_token()
 					error("unterminated textfield");
 				// else if (ch == '\\')
 				// 	state = State::Esc;
-				else if (not is_any_print(ch))
+				else if (not is_any_print(ch) and cif::VERBOSE > 2)
 					warning("invalid character in text field '" + std::string({static_cast<char>(ch)}) + "' (" + std::to_string((int)ch) + ")");
 				break;
 
@@ -252,8 +252,8 @@ sac_parser::CIFToken sac_parser::get_next_token()
 					error("unterminated quoted string");
 				else if (ch == quoteChar)
 					state = State::QuotedStringQuote;
-				else if (not is_any_print(ch))
-					warning("invalid character in quoted string: '" + std::string({static_cast<char>(ch)}) + '\'');
+				else if (not is_any_print(ch) and cif::VERBOSE > 2)
+					warning("invalid character in quoted string: '" + std::string({static_cast<char>(ch)}) + "' (" + std::to_string((int)ch) + ")");
 				break;
 
 			case State::QuotedStringQuote: