From 0628265d7e697838d836c292d77d0e4ba1b72bbd Mon Sep 17 00:00:00 2001
From: ken <ken@mihrtec.com>
Date: Sat, 18 Feb 2017 11:03:51 -0800
Subject: [PATCH] error printing update

---
 src/ir.c    |  3 +--
 src/print.h | 33 +++++++++++++++++++++++++--------
 2 files changed, 26 insertions(+), 10 deletions(-)

diff --git a/src/ir.c b/src/ir.c
index 3577d48..e860bd7 100644
--- a/src/ir.c
+++ b/src/ir.c
@@ -17,12 +17,11 @@
 #include <unistr.h>   //u32_cpy
 #include <unistdio.h> //ulc_fprintf
 /* Local */
+#define  eprintf_callback(...) exit(EXIT_FAILURE)
 #include "print.h"
 #include "apc.h"
 #include "ir.h"
 #include "pagenode.h"
-#undef  do_error
-#define do_error(...) exit(-1)
 #define XXH_PRIVATE_API
 #include "../xxHash/xxhash.h"
 /* Public */
diff --git a/src/print.h b/src/print.h
index 6e1c4ba..2f44970 100644
--- a/src/print.h
+++ b/src/print.h
@@ -11,28 +11,45 @@
 #ifndef DEBUG
 #define DEBUG 0
 #endif
+/* wprintf callback, may be defined prior to include
+   or undefined and redefined later
+*/
+#ifndef wprintf_callback
+#define wprintf_callback(...) do {		\
+  } while (0)
+#endif
+/* eprintf callback, may be defined prior to include
+   or undefined and redefined later
+*/
+#ifndef eprintf_callback
+#define eprintf_callback(...) do {		\
+  } while (0)
+#endif
+
+/* Print a unicode string */
 #define uprintf(...) do {			\
-  ulc_fprintf(stdout, __VA_ARGS__);		\
+    ulc_fprintf(stdout, __VA_ARGS__);		\
   } while (0)
+/* Print a unicode string to a filestream */
 #define ufprintf(_STREAM,...) do {		\
-  ulc_fprintf(_STREAM, __VA_ARGS__);		\
-  } while (0)
-#define do_warn(...) do {			\
+    ulc_fprintf(_STREAM, __VA_ARGS__);		\
   } while (0)
+/* Print a warning message to stderr, then do_warn */
 #define wprintf(...) do {			\
     ufprintf(stderr, __VA_ARGS__);	        \
-    do_warn(__VA_ARGS__);			\
-  } while (0)
-#define do_error(...) do {			\
+    wprintf_callback(__VA_ARGS__);		\
   } while (0)
+/* Print an error message to stderr, then do_error */
 #define eprintf(...) do {			\
     ufprintf(stderr, __VA_ARGS__);	        \
-    do_error(__VA_ARGS_);			\
+    eprintf_callback(__VA_ARGS_);		\
   } while (0)
+/* Print only when the provided boolean is true */
 #define bprintf(_BOOL,...) do {		        \
     if (_BOOL)					\
       ufprintf(stdout, __VA_ARGS__);	        \
   } while (0)
+/* Print only when DEBUG is set to a value */
 #define dprintf(...) do {			\
     bprintf(DEBUG, __VA_ARGS__);		\
   } while (0)
-- 
2.18.0