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annotate src/expr.h @ 15:1f598d89b9b0

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Started creating expression parser
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date Thu, 23 Oct 2008 03:37:48 +0000
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1 /*
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2 expr.h
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3 Copyright © 2008 William Astle
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4
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5 This file is part of LWASM.
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6
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7 LWASM is free software: you can redistribute it and/or modify it under the
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8 terms of the GNU General Public License as published by the Free Software
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9 Foundation, either version 3 of the License, or (at your option) any later
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10 version.
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11
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12 This program is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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15 more details.
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16
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17 You should have received a copy of the GNU General Public License along with
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18 this program. If not, see <http://www.gnu.org/licenses/>.
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19 */
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21 /*
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22 Definitions for expression evaluator
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23 */
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24
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25 #ifndef __expr_h_seen__
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26 #define __expr_h_seen__
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27
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28 #include "lwval.h"
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29
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30 #ifndef __expr_c_seen__
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31 #define __expr_E__ extern
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32 #else
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33 #define __expr_E__
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34 #endif
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35
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36 // parse an expression
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37 __expr_E__ LWVAL *lwasm_parse_expr(char **ptr);
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39 // attempt to evaluate/simplify expression
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40 __expr_E__ int lwasm_eval_expr(LWVAL *expr);
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41
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42 #undef __expr_E__
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44 #endif // __expr_h_seen__