#include <stdlib.h>
#include <string.h>
+#define ARRAY_CARDINALITY(Array) (sizeof (Array) / sizeof *(Array))
+#define STREQ(L, R) (strcmp(L, R) == 0)
+#define STRNEQ(L, R) (!STREQ(L, R))
+
+/* Just like strncmp, but the second argument must be a literal string
+ and you don't specify the length. */
+#define STRNCMP_LIT(S, Literal) \
+ strncmp (S, "" Literal "", sizeof (Literal) - 1)
+
+/* Whether Literal is a prefix of S. */
+#define STRPREFIX_LIT(Literal, S) \
+ (STRNCMP_LIT (S, Literal) == 0)
+
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifndef __attribute__
/* This feature is available in gcc versions 2.5 and later. */
# if (! defined __GNUC__ || __GNUC__ < 2 \
- || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__)
+ || (__GNUC__ == 2 && __GNUC_MINOR__ < 5))
# define __attribute__(Spec) /* empty */
# endif
#endif
#define obstack_chunk_free free
#include <obstack.h>
+/* String-grow: append Str to Obs. */
+
#define obstack_sgrow(Obs, Str) \
obstack_grow (Obs, Str, strlen (Str))
-#define obstack_fgrow1(Obs, Format, Arg1) \
-do { \
- char buf[4096]; \
- sprintf (buf, Format, Arg1); \
- obstack_grow (Obs, buf, strlen (buf)); \
-} while (0)
+/* Output Str escaped for our postprocessing (i.e., escape M4 special
+ characters).
-#define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
-do { \
- char buf[4096]; \
- sprintf (buf, Format, Arg1, Arg2); \
- obstack_grow (Obs, buf, strlen (buf)); \
-} while (0)
+ For instance "[foo]" -> "@{foo@}", "$$" -> "$][$][". */
-#define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3) \
-do { \
- char buf[4096]; \
- sprintf (buf, Format, Arg1, Arg2, Arg3); \
- obstack_grow (Obs, buf, strlen (buf)); \
-} while (0)
+# define obstack_escape(Obs, Str) \
+ do { \
+ char const *p__; \
+ for (p__ = Str; *p__; p__++) \
+ switch (*p__) \
+ { \
+ case '$': obstack_sgrow (Obs, "$]["); break; \
+ case '@': obstack_sgrow (Obs, "@@" ); break; \
+ case '[': obstack_sgrow (Obs, "@{" ); break; \
+ case ']': obstack_sgrow (Obs, "@}" ); break; \
+ default: obstack_1grow (Obs, *p__ ); break; \
+ } \
+ } while (0)
+
+
+/* Output Str both quoted for M4 (i.e., embed in [[...]]), and escaped
+ for our postprocessing (i.e., escape M4 special characters). If
+ Str is empty (or NULL), output "[]" instead of "[[]]" as it make M4
+ programming easier (m4_ifval can be used).
+
+ For instance "[foo]" -> "[[@{foo@}]]", "$$" -> "[[$][$][]]". */
+
+# define obstack_quote(Obs, Str) \
+ do { \
+ char const* obstack_quote_p = Str; \
+ if (obstack_quote_p && obstack_quote_p[0]) \
+ { \
+ obstack_sgrow (Obs, "[["); \
+ obstack_escape (Obs, obstack_quote_p); \
+ obstack_sgrow (Obs, "]]"); \
+ } \
+ else \
+ obstack_sgrow (Obs, "[]"); \
+ } while (0)
+
+
+/* Append the ending 0, finish Obs, and return the string. */
+
+# define obstack_finish0(Obs) \
+ (obstack_1grow (Obs, '\0'), (char *) obstack_finish (Obs))
-#define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4) \
-do { \
- char buf[4096]; \
- sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4); \
- obstack_grow (Obs, buf, strlen (buf)); \
-} while (0)
# define TAB_EXT ".tab"
#endif
-#ifndef DEFAULT_TMPDIR
-# define DEFAULT_TMPDIR "/tmp"
-#endif
-
/*---------------------.
| Free a linked list. |
`---------------------*/
-#define LIST_FREE(Type, List) \
-do { \
- Type *_node, *_next; \
- for (_node = List; _node; _node = _next) \
- { \
- _next = _node->next; \
- free (_node); \
- } \
+#define LIST_FREE(Type, List) \
+do { \
+ Type *_node, *_next; \
+ for (_node = List; _node; _node = _next) \
+ { \
+ _next = _node->next; \
+ free (_node); \
+ } \
} while (0)