initial

1 files changed, 54 insertions, 0 deletions

diff --git a/util.c b/util.c
new file mode 100644
index 0000000..6eda622
--- /dev/null
+++ b/util.c
@@ -0,0 +1,54 @@
+#include "util.h"
+
+void
+fdebug(const char *fmt, ...)
+{
+#ifdef _FOOD_DEBUG
+  va_list ap;
+
+  va_start(ap, fmt);
+  vfprintf(stderr, fmt, ap);
+  va_end(ap);
+#else
+  return;
+#endif
+}
+
+void
+die(const char *fmt, ...)
+{
+  va_list ap;
+
+  va_start(ap, fmt);
+  vfprintf(stderr, fmt, ap);
+  va_end(ap);
+
+  if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
+    fputc(' ', stderr);
+    perror(NULL);
+  } else {
+    fputc('\n', stderr);
+  }
+
+  exit(1);
+}
+
+void
+trim(char * str)
+{
+  int i;
+  int begin = 0;
+  int end = strlen(str) - 1;
+
+  while (isspace((unsigned char) str[begin]))
+      begin++;
+
+  while (isspace((unsigned char) str[end]) && (end >= begin))
+      end--;
+
+  /* Shift all characters back to the start of the string array. */
+  for (i = begin; i <= end; i++)
+      str[i - begin] = str[i];
+
+  str[i - begin] = '\0';
+}