X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/aaf63e45b65d35bb506e431ffa8360f259ee393c..56b91ae0b1fedff810bdd8317816a7073910ccb0:/src/muscle-tab.h

diff --git a/src/muscle-tab.h b/src/muscle-tab.h
index 696103f3..66975624 100644
--- a/src/muscle-tab.h
+++ b/src/muscle-tab.h
@@ -1,7 +1,6 @@
 /* Muscle table manager for Bison,
 
-   Copyright (C) 2001-2003, 2006-2007, 2009-2012 Free Software
-   Foundation, Inc.
+   Copyright (C) 2001-2003, 2006-2013 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -35,46 +34,40 @@ 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);                                 \
+# define MUSCLE_INSERT_BOOL(Key, Value)         \
+  do {                                          \
+    int v__ = Value;                            \
+    MUSCLE_INSERT_INT (Key, v__);               \
   } while (0)
 
-#define MUSCLE_INSERT_INT(Key, Value)                           \
+# define MUSCLE_INSERTF(Key, Format, Value)                     \
   do {                                                          \
-    obstack_printf (&muscle_obstack, "%d", Value);              \
-    obstack_1grow (&muscle_obstack, 0);                         \
-    muscle_insert (Key, obstack_finish (&muscle_obstack));      \
+    obstack_printf (&muscle_obstack, Format, Value);            \
+    muscle_insert (Key, obstack_finish0 (&muscle_obstack));     \
   } while (0)
 
-#define MUSCLE_INSERT_LONG_INT(Key, Value)                      \
-  do {                                                          \
-    obstack_printf (&muscle_obstack, "%ld", Value);             \
-    obstack_1grow (&muscle_obstack, 0);                         \
-    muscle_insert (Key, obstack_finish (&muscle_obstack));      \
-  } while (0)
+# define MUSCLE_INSERT_INT(Key, Value)          \
+  MUSCLE_INSERTF(Key, "%d", 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_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)   \
+  MUSCLE_INSERTF(Key, "%s", Value)
 
-#define MUSCLE_INSERT_STRING(Key, Value)                        \
+/* Key -> Value, applying M4 escaping to Value. */
+# define MUSCLE_INSERT_STRING(Key, Value)                       \
   do {                                                          \
     obstack_escape (&muscle_obstack, Value);                    \
-    obstack_1grow (&muscle_obstack, 0);                         \
-    muscle_insert (Key, obstack_finish (&muscle_obstack));      \
+    muscle_insert (Key, obstack_finish0 (&muscle_obstack));     \
   } while (0)
 
-#define MUSCLE_INSERT_C_STRING(Key, Value)                      \
+# define MUSCLE_INSERT_C_STRING(Key, Value)                     \
   do {                                                          \
     obstack_escape (&muscle_obstack,                            \
                     quotearg_style (c_quoting_style, Value));   \
-    obstack_1grow (&muscle_obstack, 0);                         \
-    muscle_insert (Key, obstack_finish (&muscle_obstack));      \
+    muscle_insert (Key, obstack_finish0 (&muscle_obstack));     \
   } while (0)
 
 /* Append VALUE to the current value of KEY.  If KEY did not already
@@ -123,6 +116,13 @@ void muscle_percent_define_insert (char const *variable, location variable_loc,
                                    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
+   between old directives such as %pure-parser, and the recommended use of
+   variables (%define api.pure).   */
+void muscle_percent_define_ensure (char const *variable, location variable_loc,
+                                   bool 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