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annotate macro.h @ 27:722a45b4028b

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Add define command for defining macros Macros are parsed when they are defined with the D command and can subsequently be used as arguments for other commands. Handle out of memory errors directly in tok.c.
author Guido Berhoerster <guido+pwm@berhoerster.name>
date Mon, 25 Sep 2017 21:21:25 +0200
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27
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1 /*
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2 * Copyright (C) 2017 Guido Berhoerster <guido+pwm@berhoerster.name>
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3 *
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4 * Permission is hereby granted, free of charge, to any person obtaining
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5 * a copy of this software and associated documentation files (the
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6 * "Software"), to deal in the Software without restriction, including
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7 * without limitation the rights to use, copy, modify, merge, publish,
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8 * distribute, sublicense, and/or sell copies of the Software, and to
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9 * permit persons to whom the Software is furnished to do so, subject to
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10 * the following conditions:
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11 *
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12 * The above copyright notice and this permission notice shall be included
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13 * in all copies or substantial portions of the Software.
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14 *
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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22 */
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23
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24 #ifndef MACRO_H
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25 #define MACRO_H
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26
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27 #include "tok.h"
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28
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29 enum macro_err {
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30 MACRO_ERR_OK,
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31 MACRO_ERR_INVALID_NAME = -1,
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32 MACRO_ERR_UNDEFINED_MACRO = -2,
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33 MACRO_ERR_RECURSIVE = -3
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34 };
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35
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36 struct macro_head;
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37 struct macro_entry;
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38
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39 void macro_init(struct macro_head **);
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40 void macro_destroy(struct macro_head *);
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41 enum macro_err macro_parse(const char *, size_t, union tok **,
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42 struct macro_head *, struct macro_entry **);
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43 void macro_add(struct macro_head *, struct macro_entry *);
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44 int macro_expand_macros(struct macro_head *, size_t, union tok **,
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45 int *, char ***);
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46
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47 #endif /* !MACRO_H */