From c60e8f956419a473046d6202abd11d657d7c34bc Mon Sep 17 00:00:00 2001
From: antifallobst <antifallobst@systemausfall.org>
Date: Fri, 19 May 2023 01:50:55 +0200
Subject: [PATCH] feature (utils): implemented function to check if a char is a
 special character

---
 inc/utils/string.h |  1 +
 src/utils/string.c | 10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/inc/utils/string.h b/inc/utils/string.h
index bddc01a..2405c8d 100644
--- a/inc/utils/string.h
+++ b/inc/utils/string.h
@@ -52,6 +52,7 @@ void        string_bool_to_alpha            (string_t string, bool value);
 
 bool        string_is_char_text             (char chr);
 bool        string_is_char_number           (char chr);
+bool        string_is_char_special          (char chr);
 bool        string_is_char_alpha            (char chr);
 bool        string_is_char_uppercase        (char chr);
 bool        string_is_char_lowercase        (char chr);
diff --git a/src/utils/string.c b/src/utils/string.c
index 30e1c62..6936356 100644
--- a/src/utils/string.c
+++ b/src/utils/string.c
@@ -433,6 +433,16 @@ bool string_is_char_number(char chr) {
     return false;
 }
 
+bool string_is_char_special(char chr) {
+    if ((chr >= '!' && chr <= '/') ||
+        (chr >= ':' && chr <= '@') ||
+        (chr >= '^' && chr <= '`') ||
+        (chr >= '{' && chr <= '~')) {
+        return true;
+    }
+    return false;
+}
+
 bool string_is_char_alpha(char chr) {
     if (string_is_char_uppercase(chr) || string_is_char_lowercase(chr) || string_is_char_number(chr)) {
         return true;