1 // minmax_check implementation --------------------------------------------// 2 3 // Copyright Beman Dawes 2002. 4 // Copyright Gennaro Prota 2006. 5 // 6 // Distributed under the Boost Software License, Version 1.0. 7 // (See accompanying file LICENSE_1_0.txt or copy at 8 // http://www.boost.org/LICENSE_1_0.txt) 9 10 11 #include <algorithm> 12 13 #include "minmax_check.hpp" 14 #include "boost/regex.hpp" 15 #include "boost/lexical_cast.hpp" 16 17 namespace 18 { 19 boost::regex minmax_regex( 20 "(" 21 "^\\s*#\\s*undef\\s*" // # undef 22 "\\b(min|max)\\b" // followed by min or max, whole word 23 ")" 24 "|" // or (ignored) 25 "(" 26 "//[^\\n]*" // single line comments (//) 27 "|" 28 "/\\*.*?\\*/" // multi line comments (/**/) 29 "|" 30 "\"(?:\\\\\\\\|\\\\\"|[^\"])*\"" // string literals 31 ")" 32 "|" // or 33 "(" 34 "\\b(min|max)\\b" // min or max, whole word 35 "\\s*\\(" // followed by 0 or more spaces and an opening paren 36 ")" 37 , boost::regex::normal); 38 39 } // unnamed namespace 40 41 namespace boost 42 { 43 namespace inspect 44 { 45 46 // minmax_check constructor -------------------------------------------// 47 minmax_check()48 minmax_check::minmax_check() 49 : m_errors(0) 50 { 51 // C/C++ source code... 52 register_signature( ".c" ); 53 register_signature( ".cpp" ); 54 register_signature( ".cxx" ); 55 register_signature( ".h" ); 56 register_signature( ".hpp" ); 57 register_signature( ".hxx" ); 58 register_signature( ".inc" ); 59 register_signature( ".ipp" ); 60 } 61 62 // inspect ( C++ source files ) ---------------------------------------// 63 inspect(const string & library_name,const path & full_path,const string & contents)64 void minmax_check::inspect( 65 const string & library_name, 66 const path & full_path, // example: c:/foo/boost/filesystem/path.hpp 67 const string & contents) // contents of file to be inspected 68 { 69 if (contents.find( "boostinspect:" "nominmax" ) != string::npos) return; 70 71 boost::sregex_iterator cur(contents.begin(), contents.end(), minmax_regex), end; 72 73 for( ; cur != end; ++cur /*, ++m_errors*/ ) 74 { 75 76 if(!(*cur)[3].matched) 77 { 78 string::const_iterator it = contents.begin(); 79 string::const_iterator match_it = (*cur)[0].first; 80 81 string::const_iterator line_start = it; 82 83 string::size_type line_number = 1; 84 for ( ; it != match_it; ++it) { 85 if (string::traits_type::eq(*it, '\n')) { 86 ++line_number; 87 line_start = it + 1; // could be end() 88 } 89 } 90 91 ++m_errors; 92 error( library_name, full_path, string(name()) 93 + " violation of Boost min/max guidelines on line " 94 + boost::lexical_cast<string>( line_number ) ); 95 } 96 97 } 98 } 99 100 } // namespace inspect 101 } // namespace boost 102 103