From 3060303b36dc23f08d923a6bcb15129ff7602864 Mon Sep 17 00:00:00 2001
From: Raymaekers Luca <raymaekers.luca@gmail.com>
Date: Sat, 23 Nov 2024 03:34:03 +0100
Subject: checkpoint

---
 wrap.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 wrap.c

(limited to 'wrap.c')

diff --git a/wrap.c b/wrap.c
new file mode 100644
index 0000000..57506b8
--- /dev/null
+++ b/wrap.c
@@ -0,0 +1,52 @@
+// 1. Search backwards for whitespace
+// - found?
+//   y) wrap
+//   n) break at limit
+// - end?
+//   y) terminate
+//   n) goto 1. with offset += limit
+void
+wrap(u8* Text, u32 Len, u32 XLimit, u32 YLimit)
+{
+    u32 SearchingOffset = XLimit;
+    u32 X = SearchingOffset;
+    u32 Y = 0;
+    u8 t;
+    u32 PrevX = 0;
+
+    while (X < Len)
+    {
+        // Search for whitespace to break on
+        while (1)
+        {
+            if (is_whitespace(Text[X])) break;
+
+            X--;
+
+            // if we got back to the previous position break on Text[SearchingOffset]
+            if (X == PrevX)
+            {
+                X = XLimit;
+                break;
+            }
+        }
+
+        // break
+        t = Text[X];
+        *(Text + X) = '\0';
+        tb_printf(0, Y, 0, 0, "%s", Text + PrevX);
+        Text[X] = t;
+        Y++;
+        if (Y >= YLimit) break;
+
+        // consume leading whitespace
+        while (is_whitespace(Text[X])) X++;
+
+        PrevX = X;
+        X += XLimit;
+    }
+
+    tb_printf(0, Y, 0, 0, "%s", Text + PrevX);
+
+    return;
+}
-- 
cgit v1.2.3