src/muscle_tab.h

/* Muscle table manager for Bison,
   Copyright (C) 2001, 2002, 2003, 2006, 2007, 2008 Free Software Foundation, Inc.

   This file is part of Bison, the GNU Compiler Compiler.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#ifndef MUSCLE_TAB_H_
# define MUSCLE_TAB_H_

# include "location.h"

void muscle_init (void);
void muscle_insert (char const *key, char const *value);
char const *muscle_find_const (char const *key);
char *muscle_find (char const *key);
void muscle_free (void);


/* An obstack dedicated to receive muscle keys and values.  */
extern struct obstack muscle_obstack;

#define MUSCLE_INSERT_BOOL(Key, Value)				\
do {								\
  int v__ = Value;						\
  MUSCLE_INSERT_INT (Key, v__);					\
} while(0)

#define MUSCLE_INSERT_INT(Key, Value)				\
do {								\
  obstack_fgrow1 (&muscle_obstack, "%d", Value);		\
  obstack_1grow (&muscle_obstack, 0);				\
  muscle_insert (Key, obstack_finish (&muscle_obstack));	\
} while(0)

#define MUSCLE_INSERT_LONG_INT(Key, Value)			\
do {								\
  obstack_fgrow1 (&muscle_obstack, "%ld", Value);		\
  obstack_1grow (&muscle_obstack, 0);				\
  muscle_insert (Key, obstack_finish (&muscle_obstack));	\
} while(0)

/* Key -> Value, but don't apply escaping to Value. */
#define MUSCLE_INSERT_STRING_RAW(Key, Value)			\
do {								\
  obstack_sgrow (&muscle_obstack, Value);			\
  obstack_1grow (&muscle_obstack, 0);				\
  muscle_insert (Key, obstack_finish (&muscle_obstack));	\
} while(0)

/* Key -> Value, applying M4 escaping to Value. */
#define MUSCLE_INSERT_STRING(Key, Value)			\
do {								\
  MUSCLE_OBSTACK_SGROW (&muscle_obstack, Value);                \
  obstack_1grow (&muscle_obstack, 0);				\
  muscle_insert (Key, obstack_finish (&muscle_obstack));	\
} while(0)

#define MUSCLE_OBSTACK_SGROW(Obstack, Value)            \
do {                                                    \
  char const *p__;                                      \
  for (p__ = Value; *p__; p__++)                        \
    switch (*p__)                                       \
      {                                                 \
      case '$':	obstack_sgrow (Obstack, "$]["); break;  \
      case '@':	obstack_sgrow (Obstack, "@@" ); break;  \
      case '[':	obstack_sgrow (Obstack, "@{" ); break;  \
      case ']':	obstack_sgrow (Obstack, "@}" ); break;  \
      default: obstack_1grow (Obstack, *p__); break;    \
      }                                                 \
} while(0)

#define MUSCLE_INSERT_C_STRING(Key, Value)			\
do {								\
  MUSCLE_OBSTACK_SGROW (&muscle_obstack,			\
			quotearg_style (c_quoting_style,	\
					Value));		\
  obstack_1grow (&muscle_obstack, 0);				\
  muscle_insert (Key, obstack_finish (&muscle_obstack));	\
} while(0)

/* Append VALUE to the current value of KEY.  If KEY did not already
   exist, create it.  Use MUSCLE_OBSTACK.  De-allocate the previously
   associated value.  Copy VALUE and SEPARATOR.  */

void muscle_grow (const char *key, const char *value, const char *separator);


/* Append VALUE to the current value of KEY, using muscle_grow.  But
   in addition, issue a synchronization line for the location LOC.  */

void muscle_code_grow (const char *key, const char *value, location loc);


/* MUSCLE is an M4 list of pairs.  Create or extend it with the pair
   (A1, A2) after escaping both values with digraphs.  Note that because the
   muscle values are output *double* quoted, one needs to strip the first level
   of quotes to reach the list itself.  */
void muscle_pair_list_grow (const char *muscle,
			    const char *a1, const char *a2);

/* In the format `[[file_name:line.column]], [[file_name:line.column]]', append
   LOC to MUSCLE.  Use digraphs for special characters in each file name.  */
void muscle_location_grow (char const *key, location loc);

/* In the format `file_name:line.column', append BOUND to MUSCLE.  Use digraphs
   for special characters in the file name.  */
void muscle_boundary_grow (char const *key, boundary bound);

/* Grow KEY for the occurrence of the name USER_NAME at LOC appropriately for
   use with b4_check_user_names in ../data/bison.m4.  USER_NAME is not escaped
   with digraphs, so it must not contain `[' or `]'.  */
void muscle_user_name_list_grow (char const *key, char const *user_name,
                                 location loc);

/* Define the muscle for the %define variable VARIABLE appearing at
   VARIABLE_LOC in the grammar file with value VALUE.  Warn if VARIABLE is
   already defined.  Record this as a grammar occurrence of VARIABLE by
   invoking muscle_user_name_list_grow.  */
void muscle_percent_define_insert (char const *variable, location variable_loc,
                                   char const *value);

/* Mimic b4_percent_define_get in ../data/bison.m4 exactly.  That is, if the
   %define variable VARIABLE is defined, return its value.  Otherwise, return
   the empty string.  Also, record Bison's usage of VARIABLE by defining
   b4_percent_define_bison_variables(VARIABLE).  The caller is responsible for
   freeing the memory of the returned string.  */
char *muscle_percent_define_get (char const *variable);

/* Mimic muscle_percent_define_get_loc in ../data/bison.m4 exactly.  That is,
   if the %define variable VARIABLE is undefined, complain fatally since that's
   a Bison error.  Otherwise, return its definition location in a form
   approriate for the first argument of warn_at, complain_at, or fatal_at.
   Don't record this as a Bison usage of VARIABLE as there's no reason to
   suspect that the user-supplied value has yet influenced the output.  */
location muscle_percent_define_get_loc (char const *variable);

/* Mimic muscle_percent_define_get_syncline in ../data/bison.m4 exactly.  That
   is, if the %define variable VARIABLE is undefined, complain fatally since
   that's a Bison error.  Otherwise, return its definition location as a
   b4_syncline invocation.  Don't record this as a Bison usage of VARIABLE as
   there's no reason to suspect that the user-supplied value has yet influenced
   the output.  */
char const *muscle_percent_define_get_syncline (char const *variable);

/* Mimic b4_percent_define_ifdef in ../data/bison.m4 exactly.  That is, if the
   %define variable VARIABLE is defined, return true.  Otherwise, return false.
   Also, record Bison's usage of VARIABLE by defining
   b4_percent_define_bison_variables(VARIABLE).  */
bool muscle_percent_define_ifdef (char const *variable);

/* Mimic b4_percent_define_flag_if in ../data/bison.m4 exactly.  That is, if
   the %define variable VARIABLE is defined to "" or "true", return true.  If
   it is defined to "false", return false.  Complain if it is undefined (a
   Bison error since the default value should have been set already) or defined
   to any other value (possibly a user error).  Also, record Bison's usage of
   VARIABLE by defining b4_percent_define_bison_variables(VARIABLE).  */
bool muscle_percent_define_flag_if (char const *variable);

/* Mimic b4_percent_define_default in ../data/bison.m4 exactly.  That is, if
   the %define variable VARIABLE is undefined, set its value to VALUE.
   Don't record this as a Bison usage of VARIABLE as there's no reason to
   suspect that the value has yet influenced the output.  */
void muscle_percent_define_default (char const *variable, char const *value);

/* Mimic b4_percent_define_check_values in ../data/bison.m4 exactly except that
   the VALUES structure is more appropriate for C.  That is, VALUES points to a
   list of strings that is partitioned into sublists by NULL's, one terminating
   each sublist.  The last sublist is followed by a second NULL.  For each
   sublist, the first string is the name of a %define variable, and all
   remaining strings in that sublist are the valid values for that variable.
   Complain if such a variable is undefined (a Bison error since the default
   value should have been set already) or defined to any other value (possibly
   a user error).  Don't record this as a Bison usage of the variable as
   there's no reason to suspect that the value has yet influenced the
   output.  */
void muscle_percent_define_check_values (char const * const *values);

/* Grow the muscle for the %code qualifier QUALIFIER appearing at QUALIFIER_LOC
   in the grammar file with code CODE appearing at CODE_LOC.  Record this as a
   grammar occurrence of VARIABLE by invoking muscle_user_name_list_grow.  */
void muscle_percent_code_grow (char const *qualifier, location qualifier_loc,
                               char const *code, location code_loc);

void muscles_m4_output (FILE *out);

#endif /* not MUSCLE_TAB_H_ */
Commit	Line	Data
	1	/* Muscle table manager for Bison,
	2	Copyright (C) 2001, 2002, 2003, 2006, 2007, 2008 Free Software Foundation, Inc.
	3
	4	This file is part of Bison, the GNU Compiler Compiler.
	5
	6	This program 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 3 of the License, or
	9	(at your option) any later version.
	10
	11	This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
	18
	19	#ifndef MUSCLE_TAB_H_
	20	# define MUSCLE_TAB_H_
	21
	22	# include "location.h"
	23
	24	void muscle_init (void);
	25	void muscle_insert (char const key, char const value);
	26	char const muscle_find_const (char const key);
	27	char muscle_find (char const key);
	28	void muscle_free (void);
	29
	30
	31	/* An obstack dedicated to receive muscle keys and values. */
	32	extern struct obstack muscle_obstack;
	33
	34	#define MUSCLE_INSERT_BOOL(Key, Value) \
	35	do { \
	36	int v__ = Value; \
	37	MUSCLE_INSERT_INT (Key, v__); \
	38	} while(0)
	39
	40	#define MUSCLE_INSERT_INT(Key, Value) \
	41	do { \
	42	obstack_fgrow1 (&muscle_obstack, "%d", Value); \
	43	obstack_1grow (&muscle_obstack, 0); \
	44	muscle_insert (Key, obstack_finish (&muscle_obstack)); \
	45	} while(0)
	46
	47	#define MUSCLE_INSERT_LONG_INT(Key, Value) \
	48	do { \
	49	obstack_fgrow1 (&muscle_obstack, "%ld", Value); \
	50	obstack_1grow (&muscle_obstack, 0); \
	51	muscle_insert (Key, obstack_finish (&muscle_obstack)); \
	52	} while(0)
	53
	54	/* Key -> Value, but don't apply escaping to Value. */
	55	#define MUSCLE_INSERT_STRING_RAW(Key, Value) \
	56	do { \
	57	obstack_sgrow (&muscle_obstack, Value); \
	58	obstack_1grow (&muscle_obstack, 0); \
	59	muscle_insert (Key, obstack_finish (&muscle_obstack)); \
	60	} while(0)
	61
	62	/* Key -> Value, applying M4 escaping to Value. */
	63	#define MUSCLE_INSERT_STRING(Key, Value) \
	64	do { \
	65	MUSCLE_OBSTACK_SGROW (&muscle_obstack, Value); \
	66	obstack_1grow (&muscle_obstack, 0); \
	67	muscle_insert (Key, obstack_finish (&muscle_obstack)); \
	68	} while(0)
	69
	70	#define MUSCLE_OBSTACK_SGROW(Obstack, Value) \
	71	do { \
	72	char const *p__; \
	73	for (p__ = Value; *p__; p__++) \
	74	switch (*p__) \
	75	{ \
	76	case '$': obstack_sgrow (Obstack, "$]["); break; \
	77	case '@': obstack_sgrow (Obstack, "@@" ); break; \
	78	case '[': obstack_sgrow (Obstack, "@{" ); break; \
	79	case ']': obstack_sgrow (Obstack, "@}" ); break; \
	80	default: obstack_1grow (Obstack, *p__); break; \
	81	} \
	82	} while(0)
	83
	84	#define MUSCLE_INSERT_C_STRING(Key, Value) \
	85	do { \
	86	MUSCLE_OBSTACK_SGROW (&muscle_obstack, \
	87	quotearg_style (c_quoting_style, \
	88	Value)); \
	89	obstack_1grow (&muscle_obstack, 0); \
	90	muscle_insert (Key, obstack_finish (&muscle_obstack)); \
	91	} while(0)
	92
	93	/* Append VALUE to the current value of KEY. If KEY did not already
	94	exist, create it. Use MUSCLE_OBSTACK. De-allocate the previously
	95	associated value. Copy VALUE and SEPARATOR. */
	96
	97	void muscle_grow (const char key, const char value, const char *separator);
	98
	99
	100	/* Append VALUE to the current value of KEY, using muscle_grow. But
	101	in addition, issue a synchronization line for the location LOC. */
	102
	103	void muscle_code_grow (const char key, const char value, location loc);
	104
	105
	106	/* MUSCLE is an M4 list of pairs. Create or extend it with the pair
	107	(A1, A2) after escaping both values with digraphs. Note that because the
	108	muscle values are output double quoted, one needs to strip the first level
	109	of quotes to reach the list itself. */
	110	void muscle_pair_list_grow (const char *muscle,
	111	const char a1, const char a2);
	112
	113	/* In the format `[[file_name:line.column]], [[file_name:line.column]]', append
	114	LOC to MUSCLE. Use digraphs for special characters in each file name. */
	115	void muscle_location_grow (char const *key, location loc);
	116
	117	/* In the format `file_name:line.column', append BOUND to MUSCLE. Use digraphs
	118	for special characters in the file name. */
	119	void muscle_boundary_grow (char const *key, boundary bound);
	120
	121	/* Grow KEY for the occurrence of the name USER_NAME at LOC appropriately for
	122	use with b4_check_user_names in ../data/bison.m4. USER_NAME is not escaped
	123	with digraphs, so it must not contain `[' or `]'. */
	124	void muscle_user_name_list_grow (char const key, char const user_name,
	125	location loc);
	126
	127	/* Define the muscle for the %define variable VARIABLE appearing at
	128	VARIABLE_LOC in the grammar file with value VALUE. Warn if VARIABLE is
	129	already defined. Record this as a grammar occurrence of VARIABLE by
	130	invoking muscle_user_name_list_grow. */
	131	void muscle_percent_define_insert (char const *variable, location variable_loc,
	132	char const *value);
	133
	134	/* Mimic b4_percent_define_get in ../data/bison.m4 exactly. That is, if the
	135	%define variable VARIABLE is defined, return its value. Otherwise, return
	136	the empty string. Also, record Bison's usage of VARIABLE by defining
	137	b4_percent_define_bison_variables(VARIABLE). The caller is responsible for
	138	freeing the memory of the returned string. */
	139	char muscle_percent_define_get (char const variable);
	140
	141	/* Mimic muscle_percent_define_get_loc in ../data/bison.m4 exactly. That is,
	142	if the %define variable VARIABLE is undefined, complain fatally since that's
	143	a Bison error. Otherwise, return its definition location in a form
	144	approriate for the first argument of warn_at, complain_at, or fatal_at.
	145	Don't record this as a Bison usage of VARIABLE as there's no reason to
	146	suspect that the user-supplied value has yet influenced the output. */
	147	location muscle_percent_define_get_loc (char const *variable);
	148
	149	/* Mimic muscle_percent_define_get_syncline in ../data/bison.m4 exactly. That
	150	is, if the %define variable VARIABLE is undefined, complain fatally since
	151	that's a Bison error. Otherwise, return its definition location as a
	152	b4_syncline invocation. Don't record this as a Bison usage of VARIABLE as
	153	there's no reason to suspect that the user-supplied value has yet influenced
	154	the output. */
	155	char const muscle_percent_define_get_syncline (char const variable);
	156
	157	/* Mimic b4_percent_define_ifdef in ../data/bison.m4 exactly. That is, if the
	158	%define variable VARIABLE is defined, return true. Otherwise, return false.
	159	Also, record Bison's usage of VARIABLE by defining
	160	b4_percent_define_bison_variables(VARIABLE). */
	161	bool muscle_percent_define_ifdef (char const *variable);
	162
	163	/* Mimic b4_percent_define_flag_if in ../data/bison.m4 exactly. That is, if
	164	the %define variable VARIABLE is defined to "" or "true", return true. If
	165	it is defined to "false", return false. Complain if it is undefined (a
	166	Bison error since the default value should have been set already) or defined
	167	to any other value (possibly a user error). Also, record Bison's usage of
	168	VARIABLE by defining b4_percent_define_bison_variables(VARIABLE). */
	169	bool muscle_percent_define_flag_if (char const *variable);
	170
	171	/* Mimic b4_percent_define_default in ../data/bison.m4 exactly. That is, if
	172	the %define variable VARIABLE is undefined, set its value to VALUE.
	173	Don't record this as a Bison usage of VARIABLE as there's no reason to
	174	suspect that the value has yet influenced the output. */
	175	void muscle_percent_define_default (char const variable, char const value);
	176
	177	/* Mimic b4_percent_define_check_values in ../data/bison.m4 exactly except that
	178	the VALUES structure is more appropriate for C. That is, VALUES points to a
	179	list of strings that is partitioned into sublists by NULL's, one terminating
	180	each sublist. The last sublist is followed by a second NULL. For each
	181	sublist, the first string is the name of a %define variable, and all
	182	remaining strings in that sublist are the valid values for that variable.
	183	Complain if such a variable is undefined (a Bison error since the default
	184	value should have been set already) or defined to any other value (possibly
	185	a user error). Don't record this as a Bison usage of the variable as
	186	there's no reason to suspect that the value has yet influenced the
	187	output. */
	188	void muscle_percent_define_check_values (char const * const *values);
	189
	190	/* Grow the muscle for the %code qualifier QUALIFIER appearing at QUALIFIER_LOC
	191	in the grammar file with code CODE appearing at CODE_LOC. Record this as a
	192	grammar occurrence of VARIABLE by invoking muscle_user_name_list_grow. */
	193	void muscle_percent_code_grow (char const *qualifier, location qualifier_loc,
	194	char const *code, location code_loc);
	195
	196	void muscles_m4_output (FILE *out);
	197
	198	#endif /* not MUSCLE_TAB_H_ */