X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/72cd9a913f6d282c5e24990505c2c820bda2bf1b..f122444873a1ec499d25ffec5765dcc48dc7b928:/examples/variant.yy?ds=sidebyside diff --git a/examples/variant.yy b/examples/variant.yy index 39a57ba8..9413cbcf 100644 --- a/examples/variant.yy +++ b/examples/variant.yy @@ -1,5 +1,5 @@ /* - Copyright (C) 2008-2012 Free Software Foundation, Inc. + Copyright (C) 2008-2013 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -18,9 +18,9 @@ %debug %skeleton "lalr1.cc" %defines +%define api.token.constructor +%define api.value.type variant %define parse.assert -%define variant -%define lex_symbol %locations %code requires // *.hh @@ -38,7 +38,10 @@ typedef std::list strings_type; #include // Prototype of the yylex function providing subsequent tokens. - static yy::parser::symbol_type yylex (); + namespace yy + { + static parser::symbol_type yylex (); + } // Printing a list of strings. // Koening look up will look into std, since that's an std::list. @@ -67,8 +70,7 @@ typedef std::list strings_type; %token <::std::string> TEXT; %token NUMBER; -%printer { debug_stream () << $$; } - <::std::string> <::std::list>; +%printer { yyoutput << $$; } <*>; %token END_OF_FILE 0; %type <::std::string> item; @@ -91,41 +93,44 @@ item: ; %% -// The yylex function providing subsequent tokens: -// TEXT "I have three numbers for you:" -// NUMBER 1 -// NUMBER 2 -// NUMBER 3 -// TEXT " and that's all!" -// END_OF_FILE - -static -yy::parser::symbol_type -yylex () +namespace yy { - static int stage = -1; - ++stage; - yy::parser::location_type loc(0, stage + 1, stage + 1); - switch (stage) + // The yylex function providing subsequent tokens: + // TEXT "I have three numbers for you." + // NUMBER 1 + // NUMBER 2 + // NUMBER 3 + // TEXT "And that's all!" + // END_OF_FILE + + static + parser::symbol_type + yylex () { - case 0: - return yy::parser::make_TEXT ("I have three numbers for you.", loc); - case 1: - case 2: - case 3: - return yy::parser::make_NUMBER (stage, loc); - case 4: - return yy::parser::make_TEXT ("And that's all!", loc); - default: - return yy::parser::make_END_OF_FILE (loc); + static int stage = -1; + ++stage; + parser::location_type loc(0, stage + 1, stage + 1); + switch (stage) + { + case 0: + return parser::make_TEXT ("I have three numbers for you.", loc); + case 1: + case 2: + case 3: + return parser::make_NUMBER (stage, loc); + case 4: + return parser::make_TEXT ("And that's all!", loc); + default: + return parser::make_END_OF_FILE (loc); + } } -} -// Mandatory error function -void -yy::parser::error (const yy::parser::location_type& loc, const std::string& msg) -{ - std::cerr << loc << ": " << msg << std::endl; + // Mandatory error function + void + parser::error (const parser::location_type& loc, const std::string& msg) + { + std::cerr << loc << ": " << msg << std::endl; + } } int