From 8636d3558523fe30a2be84549c2b6eb5e125e97c Mon Sep 17 00:00:00 2001
From: Syndamia <kamen@syndamia.com>
Date: Wed, 29 Apr 2026 18:26:15 +0300
Subject: feat(String): Implement S_substr function

---
 String.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'String.c')

diff --git a/String.c b/String.c
index fb003d8..7723525 100644
--- a/String.c
+++ b/String.c
@@ -240,3 +240,20 @@ S_find(String s, char c) {
 
     return index;
 }
+
+String
+S_substr(MemoryManager *mm, String s, usize start, usize length) {
+    if (NULL == s)
+        return NULL;
+
+    struct StringMeta *sm = S_metadata(s);
+
+    if (start >= sm->length || 0 == length)
+        return S_newlen(mm, 0);
+
+    String result = S_newlen(mm, length);
+    strncpy(result, s + start, length);
+    result[length] = '\0';
+
+    return result;
+}
-- 
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