From 5fe6254a8974dbe1fa199b5e3cc010af9bee87b3 Mon Sep 17 00:00:00 2001
From: Mazet Laurent <mazet@softndesign.org>
Date: Wed, 4 Jan 2023 22:34:41 +0100
Subject: [PATCH] fix percent printing

---
 fdprintf.c | 3 +++
 parser.c   | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/fdprintf.c b/fdprintf.c
index 17b8473..46f27ac 100644
--- a/fdprintf.c
+++ b/fdprintf.c
@@ -112,6 +112,9 @@ int fdprintf (int fd, const char *fmt, ...)
 
             /* process format char */
             switch (*fmt++) {
+            case '%': /* percent */
+                *str++ = '%';
+                break;
             case 'c': /* char */
                 c = (char) va_arg (ap, int);
                 *str++ = c;
diff --git a/parser.c b/parser.c
index b7b74e2..cd0d6bf 100644
--- a/parser.c
+++ b/parser.c
@@ -367,7 +367,7 @@ void help (void)
 {
     PRINTOUT ("calc is a simple calculator\n\n");
     PRINTOUT ("supported operators:\n");
-    PRINTOUT (" + - * / % ^\n\n");
+    PRINTOUT (" + - * / %% ^\n\n");
     PRINTOUT ("supported functions:\n");
     PRINTOUT (" pow sqrt cos sin atan log exp\n\n");
     PRINTOUT ("miscellaneous functions:\n");
-- 
2.30.2