mdw@git.distorted.org.uk Git - disorder/blob - lib/macros.h

   1 /*
   2  * This file is part of DisOrder
   3  * Copyright (C) 2008 Richard Kettlewell
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  18  * USA
  19  */
  20
  21 /** @file lib/macros.h
  22  * @brief Macro expansion
  23  */
  24
  25 #ifndef MACROS_H
  26 #define MACROS_H
  27
  28 /** @brief One node in a macro expansion parse tree */
  29 struct mx_node {
  30   /** @brief Next element or NULL at end of list */
  31   struct mx_node *next;
  32
  33   /** @brief Node type, @ref MX_TEXT or @ref MX_EXPANSION. */
  34   int type;
  35
  36   /** @brief Filename containing this node */
  37   const char *filename;
  38
  39   /** @brief Line number at start of this node */
  40   int line;
  41
  42   /** @brief Plain text (if @p type is @ref MX_TEXT) */
  43   char *text;
  44
  45   /** @brief Expansion name (if @p type is @ref MX_EXPANSION) */
  46   char *name;
  47
  48   /** @brief Argument count (if @p type is @ref MX_EXPANSION) */
  49   int nargs;
  50
  51   /** @brief Argument values, parsed recursively (or NULL if @p nargs is 0) */
  52   const struct mx_node **args;
  53 };
  54
  55 /** @brief Text node */
  56 #define MX_TEXT 0
  57
  58 /** @brief Expansion node */
  59 #define MX_EXPANSION 1
  60
  61 const struct mx_node *mx_parse(const char *filename,
  62                                int line,
  63                                const char *input,
  64                                const char *end);
  65
  66 char *mx_dump(const struct mx_node *m);
  67
  68 #endif /* MACROS_H */
  69
  70
  71 /*
  72 Local Variables:
  73 c-basic-offset:2
  74 comment-column:40
  75 fill-column:79
  76 indent-tabs-mode:nil
  77 End:
  78 */