From d64340525a2c0b5a4976a1a6de9608273d1a31c3 Mon Sep 17 00:00:00 2001
From: herbglitch <bighebe@gmail.com>
Date: Mon, 15 Jan 2024 02:14:35 -0700
Subject: [PATCH] added a few functions to string and added some logs to string

---
 include/arc/std/string.h | 12 ++++++++++++
 src/std/string.c         | 15 +++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/include/arc/std/string.h b/include/arc/std/string.h
index 1a604c9..91c9b40 100644
--- a/include/arc/std/string.h
+++ b/include/arc/std/string.h
@@ -87,6 +87,18 @@ uint8_t ARC_String_Equals(ARC_String *first, ARC_String *second);
 */
 uint8_t ARC_String_EqualsCString(ARC_String *string, const char *cstring, uint64_t length);
 
+/**
+ * @brief check if ARC_String and cstring match
+ *
+ * @param string  ARC_string to check
+ * @param offset  postion based on string to start comparing against cstring
+ * @param cstring cstring to check
+ * @param length  length of cstring
+ *
+ * @return 1 if match, 0 if they don't match
+*/
+uint8_t ARC_String_SubstringEqualsCString(ARC_String *string, uint64_t offset, const char *cstring, uint64_t length);
+
 /**
  * @brief checks if string is alphabetic
  *
diff --git a/src/std/string.c b/src/std/string.c
index fe29aa5..8759fa7 100644
--- a/src/std/string.c
+++ b/src/std/string.c
@@ -100,6 +100,18 @@ uint8_t ARC_String_EqualsCString(ARC_String *string, const char *cstring, uint64
     return 1;
 }
 
+uint8_t ARC_String_SubstringEqualsCString(ARC_String *string, uint64_t offset, const char *cstring, uint64_t length){
+    if(string->length - offset < length){
+        return 0;
+    }
+
+    if(strncmp(string->data + offset, cstring, length)){
+        return 0;
+    }
+
+    return 1;
+}
+
 uint8_t ARC_String_Alpha(ARC_String *string){
     for(uint64_t length = string->length; length; length--){
         if(string->data[length - 1] >= 'a' && string->data[length - 1] <= 'z'){
@@ -131,6 +143,7 @@ double ARC_String_ToDouble(ARC_String *string){
 
 uint64_t ARC_String_Find(ARC_String *string, ARC_String *substring){
     if(!string || !substring){
+        ARC_DEBUG_ERR("ARC_String_Find(string, substring), string or substring was null");
         arc_errno = ARC_ERRNO_NULL;
         return ~(uint64_t)0;
     }
@@ -152,6 +165,7 @@ uint64_t ARC_String_Find(ARC_String *string, ARC_String *substring){
 uint64_t ARC_String_FindCString(ARC_String *string, const char *cstring, uint64_t length){
     if(!string || !cstring){
         arc_errno = ARC_ERRNO_NULL;
+        ARC_DEBUG_ERR("ARC_String_FindCString(string, cstring, length), string or cstring was null");
         return ~(uint64_t)0;
     }
 
@@ -172,6 +186,7 @@ uint64_t ARC_String_FindCString(ARC_String *string, const char *cstring, uint64_
 uint64_t ARC_String_FindBack(ARC_String *string, ARC_String *substring){
     if(!string || !substring){
         arc_errno = ARC_ERRNO_NULL;
+        ARC_DEBUG_ERR("ARC_String_FindBack(string, substring), string or substring was null");
         return ~(uint64_t)0;
     }