1 files changed, 78 insertions, 0 deletions
diff --git a/src/z-util.cc b/src/z-util.cc
new file mode 100644
index 00000000..6ec1373f
--- /dev/null
+++ b/src/z-util.cc
@@ -0,0 +1,78 @@
+#include "z-util.hpp"
+
+#include <boost/algorithm/string/predicate.hpp>
+#include <cassert>
+
+using boost::algorithm::equals;
+
+/**
+ * Captialize letter
+ */
+void capitalize(char *s)
+{
+	char *p = s;
+	assert(s != nullptr);
+
+	for (; *p; p++)
+	{
+		if (!isspace(*p))
+		{
+			if (islower(*p))
+			{
+				*p = toupper(*p);
+			}
+			/* Done */
+			break;
+		}
+	}
+}
+
+
+/*
+ * Redefinable "plog" action
+ */
+void (*plog_aux)(const char *) = nullptr;
+
+/*
+ * Print (or log) a "warning" message (ala "perror()")
+ * Note the use of the (optional) "plog_aux" hook.
+ */
+void plog(const char *str)
+{
+	/* Use the "alternative" function if possible */
+	if (plog_aux) (*plog_aux)(str);
+
+	/* Just do a labeled fprintf to stderr */
+	else (void)(fprintf(stderr, "%s\n", str));
+}
+
+
+
+/*
+ * Redefinable "quit" action
+ */
+void (*quit_aux)(const char *) = nullptr;
+
+/*
+ * Exit (ala "exit()").  If 'str' is NULL, do "exit(0)".
+ * If 'str' begins with "+" or "-", do "exit(atoi(str))".
+ * Otherwise, plog() 'str' and exit with an error code of -1.
+ * But always use 'quit_aux', if set, before anything else.
+ */
+void quit(const char *str)
+{
+	/* Attempt to use the aux function */
+	if (quit_aux) (*quit_aux)(str);
+
+	/* Success */
+	if (!str) (void)(exit(0));
+
+	/* Extract a "special error code" */
+	if ((str[0] == '-') || (str[0] == '+')) (void)(exit(atoi(str)));
+
+	/* Send the string to plog() */
+	plog(str);
+
+	/* Failure */
+	(void)(exit( -1));
+}