| 1 | /*============================================================================= |
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| 2 | Copyright (c) 2001-2011 Hartmut Kaiser |
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| 3 | |
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| 4 | Distributed under the Boost Software License, Version 1.0. (See accompanying |
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| 5 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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| 6 | =============================================================================*/ |
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| 7 | #if !defined(BOOST_SPIRIT_CONJURE_LEXER_CONFIG_HPP) |
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| 8 | #define BOOST_SPIRIT_CONJURE_LEXER_CONFIG_HPP |
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| 9 | |
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| 10 | /////////////////////////////////////////////////////////////////////////////// |
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| 11 | // The conjure lexer example can be built in 3 different variations: |
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| 12 | // |
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| 13 | // - With a lexer using runtime generated DFA tables |
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| 14 | // - With a lexer using pre-generated (static) DFA tables |
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| 15 | // - With a lexer using a pre-generated custom switch based state machine |
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| 16 | // |
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| 17 | // Use one of the following preprocessor constants to define, which of those |
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| 18 | // will be built: |
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| 19 | |
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| 20 | /////////////////////////////////////////////////////////////////////////////// |
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| 21 | // Use the lexer based on runtime generated DFA tables |
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| 22 | // #define CONJURE_LEXER_DYNAMIC_TABLES 1 |
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| 23 | |
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| 24 | /////////////////////////////////////////////////////////////////////////////// |
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| 25 | // Use the lexer based on pre-generated static DFA tables |
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| 26 | // #define CONJURE_LEXER_STATIC_TABLES 1 |
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| 27 | |
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| 28 | /////////////////////////////////////////////////////////////////////////////// |
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| 29 | // Use the lexer based on runtime generated DFA tables |
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| 30 | // #define CONJURE_LEXER_STATIC_SWITCH 1 |
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| 31 | |
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| 32 | /////////////////////////////////////////////////////////////////////////////// |
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| 33 | // The default is to use the dynamic table driven lexer |
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| 34 | #if CONJURE_LEXER_DYNAMIC_TABLES == 0 && \ |
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| 35 | CONJURE_LEXER_STATIC_TABLES == 0 && \ |
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| 36 | CONJURE_LEXER_STATIC_SWITCH == 0 |
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| 37 | |
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| 38 | #define CONJURE_LEXER_DYNAMIC_TABLES 1 |
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| 39 | #endif |
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| 40 | |
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| 41 | /////////////////////////////////////////////////////////////////////////////// |
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| 42 | // Make sure we have only one lexer type selected |
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| 43 | #if (CONJURE_LEXER_DYNAMIC_TABLES != 0 && CONJURE_LEXER_STATIC_TABLES != 0) || \ |
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| 44 | (CONJURE_LEXER_DYNAMIC_TABLES != 0 && CONJURE_LEXER_STATIC_SWITCH != 0) || \ |
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| 45 | (CONJURE_LEXER_STATIC_TABLES != 0 && CONJURE_LEXER_STATIC_SWITCH != 0) |
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| 46 | |
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| 47 | #error "Configuration problem: please select exactly one type of lexer to build" |
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| 48 | #endif |
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| 49 | |
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| 50 | #endif |
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| 51 | |
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| 52 | |
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