From a99fd176e6d8111d5c40f110932f34a9711f740d Mon Sep 17 00:00:00 2001
From: Caleb Denio <cjdenio44@gmail.com>
Date: Wed, 28 May 2025 09:47:16 -0400
Subject: [PATCH] yeah

---
 src/imb.zig    |  10 +++++-----
 web/imb.wasm   | Bin 10218 -> 10277 bytes
 web/index.html |   2 ++
 3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/imb.zig b/src/imb.zig
index 0574ae0..92b5a00 100644
--- a/src/imb.zig
+++ b/src/imb.zig
@@ -134,7 +134,7 @@ fn bitsSet(comptime T: type, value: T) u8 {
     return count;
 }
 
-fn findCodeword(character: u13) u13 {
+fn findCodeword(character: u13) ?u13 {
     const b = bitsSet(u13, character);
     if (b == 2) {
         for (character_table_2, 0..) |item, codeword| {
@@ -149,7 +149,8 @@ fn findCodeword(character: u13) u13 {
             }
         }
     }
-    unreachable;
+
+    return null;
 }
 
 fn generateChecksum(data: [13]u8) u16 {
@@ -212,7 +213,7 @@ fn decode(bars: [65]BarType) Error!BarcodeResult {
             else => return error.DecodingError,
         }
 
-        character.* = findCodeword(character.*);
+        character.* = findCodeword(character.*).?;
     }
 
     characters[9] /= 2;
@@ -280,7 +281,6 @@ pub fn decodeString(str: *const [65:0]u8) Error!BarcodeResult {
             else => return error.InvalidCharacter,
         };
     }
-    const thing = try decode(bars);
 
-    return thing;
+    return try decode(bars);
 }
diff --git a/web/imb.wasm b/web/imb.wasm
index c34d468f02a574adb34d7d10bae2dcc696bf0f92..cba5bfee858f6d568481a25a8d063796f66cfa66 100755
GIT binary patch
delta 401
zcmaiwy-ou$498<92UU{-60kd!m>4?2zzsbwW#i*DGI7xT!iR*|kjlcu#EOKvbmR?M
zojURaNIXMvP8A>)lnjpTzkmPu<M{dHewsb)Z$56l&W~V^fK?7NWaSkWy1+k&6t@Q*
zC2bQ7@_=FJW}{QwZX1KfK)Rzd+^NvDEM;W4y5L2>?3x^s3PiJ5FNXv@p`52U;VhYr
z%NU~+p=2C%k^$tG>$j-9)&(Ko3fEvE6J;Ff9!PJ$JWO7sDq#*ax)n>BG5AVL5`ssk
ztZh0z4?<%EbC{rH8Uq|#-yU3M8ARZ$umt{a^#h*^9R7vtC0y9Mzu;-3wR|y4%zEin
UrR4>$#NYT%-)NYP*H+)@3!-IKr2qf`

delta 343
zcmZusy-EW?5T2RMp5b<*!o9%kfpsbyugFcK*hC+|C)n;JSeo+(YazaXg{>fIQd-yx
z!BVVJ2|mL)n?fwY4$I6pd_VJa`h9Z$Zdd!oSMl;O#<4)Ki~<!diR$#s`lp($<c9;$
z<$|IPIEiI8L@0Z^S8dyZblAvc+|J2bElf4LpuNm^>o}V|QZcpC?KBg{p{k#!KH0eB
z!v9rBePkL)o^M`T2*%WG)F}WPp%@I4U<|}P=|&B!^Qbu*fG6kVE?3&a^=8`HMxN7j
ws;D9rLOLu4>p@Xe^yeU^O-U6lNRf4PY5RZaJvzZazCV96w+5H<<E>Br1^kXpDF6Tf

diff --git a/web/index.html b/web/index.html
index ce2e356..d91863e 100644
--- a/web/index.html
+++ b/web/index.html
@@ -13,6 +13,8 @@
 
     <pre id="result"></pre>
 
+    <a href="https://github.com/cjdenio/usps-barcode-decoder">[source]</a>
+
     <script>
       WebAssembly.instantiateStreaming(fetch("imb.wasm")).then(
         ({ instance }) => {