New tmux parser and test program.

parser-test/xstubs.c

@@ -0,0 +1,118 @@
+/* Minimal implementations of the helpers cmd-parse.y links against. */
+
+#include "tmux.h"
+
+#include <errno.h>
+
+void *
+xmalloc(size_t size)
+{
+	void	*ptr;
+
+	if (size == 0)
+		size = 1;
+	if ((ptr = malloc(size)) == NULL)
+		fatalx("xmalloc");
+	return (ptr);
+}
+
+void *
+xcalloc(size_t nmemb, size_t size)
+{
+	void	*ptr;
+
+	if (nmemb == 0 || size == 0)
+		nmemb = size = 1;
+	if ((ptr = calloc(nmemb, size)) == NULL)
+		fatalx("xcalloc");
+	return (ptr);
+}
+
+void *
+xrealloc(void *oldptr, size_t newsize)
+{
+	void	*ptr;
+
+	if (newsize == 0)
+		newsize = 1;
+	if ((ptr = realloc(oldptr, newsize)) == NULL)
+		fatalx("xrealloc");
+	return (ptr);
+}
+
+char *
+xstrdup(const char *s)
+{
+	char	*ptr;
+
+	if ((ptr = strdup(s)) == NULL)
+		fatalx("xstrdup");
+	return (ptr);
+}
+
+char *
+xstrndup(const char *s, size_t maxlen)
+{
+	char	*ptr;
+
+	if ((ptr = strndup(s, maxlen)) == NULL)
+		fatalx("xstrndup");
+	return (ptr);
+}
+
+int
+xvasprintf(char **ret, const char *fmt, va_list ap)
+{
+	int	i;
+
+	if ((i = vasprintf(ret, fmt, ap)) < 0)
+		fatalx("xvasprintf");
+	return (i);
+}
+
+int
+xasprintf(char **ret, const char *fmt, ...)
+{
+	va_list	ap;
+	int	i;
+
+	va_start(ap, fmt);
+	i = xvasprintf(ret, fmt, ap);
+	va_end(ap);
+	return (i);
+}
+
+void
+log_debug(const char *fmt, ...)
+{
+	va_list	ap;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	fputc('\n', stderr);
+}
+
+__dead void
+fatal(const char *fmt, ...)
+{
+	va_list	ap;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	fprintf(stderr, ": %s\n", strerror(errno));
+	exit(1);
+}
+
+__dead void
+fatalx(const char *fmt, ...)
+{
+	va_list	ap;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	fputc('\n', stderr);
+	exit(1);
+}