src/muscle_tab.h

   1 /* Muscle table manager for Bison,
   2    Copyright (C) 2001, 2002 Free Software Foundation, Inc.
   3
   4    This file is part of Bison, the GNU Compiler Compiler.
   5
   6    Bison is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    Bison is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with Bison; see the file COPYING.  If not, write to
  18    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #ifndef MUSCLE_TAB_H_
  22 # define MUSCLE_TAB_H_
  23
  24 typedef struct muscle_entry_s
  25 {
  26   const char *key;
  27   char *value;
  28 } muscle_entry_t;
  29
  30 void muscle_init (void);
  31 void muscle_insert (const char *key, char *value);
  32 char *muscle_find (const char *key);
  33 void muscle_free (void);
  34
  35
  36 /* An obstack dedicated to receive muscle keys and values.  */
  37 extern struct obstack muscle_obstack;
  38
  39 #define MUSCLE_INSERT_INT(Key, Value)                           \
  40 {                                                               \
  41   obstack_fgrow1 (&muscle_obstack, "%d", Value);                \
  42   obstack_1grow (&muscle_obstack, 0);                           \
  43   muscle_insert (Key, obstack_finish (&muscle_obstack));        \
  44 }
  45
  46 #define MUSCLE_INSERT_LONG_INT(Key, Value)                      \
  47 {                                                               \
  48   obstack_fgrow1 (&muscle_obstack, "%ld", Value);               \
  49   obstack_1grow (&muscle_obstack, 0);                           \
  50   muscle_insert (Key, obstack_finish (&muscle_obstack));        \
  51 }
  52
  53 #define MUSCLE_INSERT_STRING(Key, Value)                        \
  54 {                                                               \
  55   obstack_sgrow (&muscle_obstack, Value);                       \
  56   obstack_1grow (&muscle_obstack, 0);                           \
  57   muscle_insert (Key, obstack_finish (&muscle_obstack));        \
  58 }
  59
  60 #define MUSCLE_OBSTACK_SGROW(Obstack, Value)                    \
  61 {                                                               \
  62   char const *s;                                                \
  63   for (s = Value; *s; s++)                                      \
  64     switch (*s)                                                 \
  65       {                                                         \
  66       case '$': obstack_sgrow (Obstack, "$]["); break;          \
  67       case '@': obstack_sgrow (Obstack, "@@" ); break;          \
  68       case '[': obstack_sgrow (Obstack, "@{" ); break;          \
  69       case ']': obstack_sgrow (Obstack, "@}" ); break;          \
  70       default: obstack_1grow (Obstack, *s); break;              \
  71       }                                                         \
  72 }
  73
  74 #define MUSCLE_INSERT_C_STRING(Key, Value)                      \
  75 {                                                               \
  76   MUSCLE_OBSTACK_SGROW (&muscle_obstack,                        \
  77                         quotearg_style (c_quoting_style,        \
  78                                         Value));                \
  79   obstack_1grow (&muscle_obstack, 0);                           \
  80   muscle_insert (Key, obstack_finish (&muscle_obstack));        \
  81 }
  82
  83 /* Insert (KEY, VALUE).  If KEY already existed, overwrite the
  84    previous value.  Uses MUSCLE_OBSTACK.  De-allocates the previously
  85    associated value.  VALUE and SEPARATOR are copied.  */
  86
  87 void muscle_grow (const char *key, const char *value, const char *separator);
  88
  89 /* MUSCLE is an M4 list of pairs.  Create or extend it with the pair
  90    (A1, A2).  Note that because the muscle values are output *double*
  91    quoted, one needs to strip the first level of quotes to reach the
  92    list itself.  */
  93
  94 void muscle_pair_list_grow (const char *muscle,
  95                             const char *a1, const char *a2);
  96
  97 void muscles_m4_output (FILE *out);
  98
  99 #endif /* not MUSCLE_TAB_H_ */