From d57b7098d6d9f4a5de380f6be1e10db2489e0e7a Mon Sep 17 00:00:00 2001
From: Dylan Lom <dylanlom@gmail.com>
Date: Sat, 16 Jan 2021 01:45:11 +1100
Subject: [PATCH] Add str_trimr utility function

---
 util.c | 11 +++++++++++
 util.h |  1 +
 2 files changed, 12 insertions(+)

diff --git a/util.c b/util.c
index 14557c4..6eb7188 100644
--- a/util.c
+++ b/util.c
@@ -56,3 +56,14 @@ char* str_concat(int count, ...)
 
     return new_str;
 }
+
+char* str_trimr(char* s, char c, int max_num)
+{
+    int i = strlen(s)-1;
+    while (s[i] == c && max_num > 0) {
+        s[i] = '\0';
+        i--;
+        max_num--;
+    }
+    return s;
+}
diff --git a/util.h b/util.h
index 69864db..31233fc 100644
--- a/util.h
+++ b/util.h
@@ -6,3 +6,4 @@ void edie(const char* fmt, ...);
 void usage();
 
 char* str_concat(int count, ...);
+char* str_trimr(char* s, char c, int max_num);