X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/f8e7258f7f24013b8da07cedba6177dc3b6d4453..827aca04ebd852b63087d80d8e420bb325bb9bd5:/src/muscle-tab.h diff --git a/src/muscle-tab.h b/src/muscle-tab.h index 12e4f1d1..3199a2d4 100644 --- a/src/muscle-tab.h +++ b/src/muscle-tab.h @@ -1,7 +1,6 @@ /* Muscle table manager for Bison, - Copyright (C) 2001, 2002, 2003, 2006, 2007, 2008, 2009 - Free Software Foundation, Inc. + Copyright (C) 2001-2003, 2006-2013 Free Software Foundation, Inc. This file is part of Bison, the GNU Compiler Compiler. @@ -21,87 +20,88 @@ #ifndef MUSCLE_TAB_H_ # define MUSCLE_TAB_H_ +# include + # include "location.h" +/* The kind of value associated to this muscle, depending on the + syntax of the value: keyword (no delimiter, e.g., true), string + (double quotes, e.g., "foo.h"), or code (braces, e.g., {int}). */ +typedef enum +{ + muscle_code, + muscle_keyword, + muscle_string +} muscle_kind; + +/* Conversion from string. */ +muscle_kind muscle_kind_new (char const *k); + +/* Conversion to string. */ +char const *muscle_kind_string (muscle_kind k); + + +/* Create the MUSCLE_TABLE, and initialize it with default values. + Also set up the MUSCLE_OBSTACK. */ void muscle_init (void); + +/* Insert (KEY, VALUE). If KEY already existed, overwrite the + previous value. Otherwise create as a muscle_string type. */ void muscle_insert (char const *key, char const *value); + +/* Find the value of muscle KEY. Unlike MUSCLE_FIND, this is always + reliable to determine whether KEY has a value. */ char const *muscle_find_const (char const *key); + +/* Find the value of muscle KEY. Abort if muscle_insert was invoked + more recently than muscle_grow for KEY since muscle_find can't + return a char const *. */ char *muscle_find (char const *key); + +/* Free all the memory consumed by the muscle machinery only. */ 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) +# define MUSCLE_INSERT_BOOL(Key, Value) \ + do { \ + int v__ = Value; \ + MUSCLE_INSERT_INT (Key, v__); \ + } while (0) + +# define MUSCLE_INSERTF(Key, Format, Value) \ + do { \ + obstack_printf (&muscle_obstack, Format, Value); \ + muscle_insert (Key, obstack_finish0 (&muscle_obstack)); \ + } while (0) + +# define MUSCLE_INSERT_INT(Key, Value) \ + MUSCLE_INSERTF(Key, "%d", Value) + +# define MUSCLE_INSERT_LONG_INT(Key, Value) \ + MUSCLE_INSERTF(Key, "%ld", Value) /* 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) +# define MUSCLE_INSERT_STRING_RAW(Key, Value) \ + MUSCLE_INSERTF(Key, "%s", Value) /* 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); +# define MUSCLE_INSERT_STRING(Key, Value) \ + do { \ + obstack_escape (&muscle_obstack, Value); \ + muscle_insert (Key, obstack_finish0 (&muscle_obstack)); \ + } while (0) +/* Key -> Value, applying C escaping to Value (and then M4). */ +# define MUSCLE_INSERT_C_STRING(Key, Value) \ + MUSCLE_INSERT_STRING(Key, quotearg_style (c_quoting_style, Value)) -/* Append VALUE to the current value of KEY, using muscle_grow. But - in addition, issue a synchronization line for the location LOC. */ +/* Append VALUE to the current value of KEY, using muscle_grow. But + in addition, issue a synchronization line for the location LOC. + Be sure to append on a new line. */ void muscle_code_grow (const char *key, const char *value, location loc); @@ -110,28 +110,35 @@ void muscle_code_grow (const char *key, const char *value, location loc); 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); + const char *a1, const char *a2); /* 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 `]'. */ + 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 with value VALUE. Warn if VARIABLE is already defined. - Record this as a user occurrence of VARIABLE by invoking +/* Indicates whether a variable's value was specified with -D/--define, with + -F/--force-define, or in the grammar file. */ +typedef enum { + MUSCLE_PERCENT_DEFINE_D = 0, + MUSCLE_PERCENT_DEFINE_F, + MUSCLE_PERCENT_DEFINE_GRAMMAR_FILE +} muscle_percent_define_how; + +/* Define the muscles for %define variable VARIABLE with VALUE specified + at VARIABLE_LOC in the manner HOW unless it was specified in the + grammar file while the previous definition for VARIABLE was specified + with -F/--force-define. Complain if a previous definition is being + overridden and the new definition is specified in the grammar file. + (These rules support the documented behavior as long as command-line + definitions are processed before grammar file definitions.) Record + this as a user occurrence of VARIABLE by invoking muscle_user_name_list_grow. */ void muscle_percent_define_insert (char const *variable, location variable_loc, - char const *value); + muscle_kind kind, + char const *value, + muscle_percent_define_how how); /* Make sure that VARIABLE is set to the boolean VALUE. Warn on mismatches only, but accept repeated declaration. Used for backward compatibility @@ -203,6 +210,8 @@ void muscle_percent_define_check_values (char const * const *values); void muscle_percent_code_grow (char const *qualifier, location qualifier_loc, char const *code, location code_loc); +/* Output the definition of all the current muscles into a list of + m4_defines. */ void muscles_m4_output (FILE *out); #endif /* not MUSCLE_TAB_H_ */