From 945152e8075e04d91aac193608ecc84b769c7ba4 Mon Sep 17 00:00:00 2001
From: Louis Pilfold <louis@lpil.uk>
Date: Tue, 7 Sep 2021 19:36:31 +0100
Subject: URI percent encode and decode for JS

---
 src/gleam_stdlib.js | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

(limited to 'src/gleam_stdlib.js')

diff --git a/src/gleam_stdlib.js b/src/gleam_stdlib.js
index 082e661..3658142 100644
--- a/src/gleam_stdlib.js
+++ b/src/gleam_stdlib.js
@@ -353,17 +353,29 @@ export function map_insert(key, value, map) {
   return map.insert(key, value);
 }
 
-function decode_query_component(string) {
+function unsafe_percent_decode(string) {
   return decodeURIComponent((string || "").replace("+", " "));
 }
 
+export function percent_decode(string) {
+  try {
+    return new Ok(unsafe_percent_decode(string));
+  } catch (error) {
+    return new Error(Nil);
+  }
+}
+
+export function percent_encode(string) {
+  return encodeURIComponent(string);
+}
+
 export function parse_query(query) {
   try {
     let pairs = [];
     for (let section of query.split("&")) {
       let [key, value] = section.split("=");
       if (!key) continue;
-      pairs.push([decode_query_component(key), decode_query_component(value)]);
+      pairs.push([unsafe_percent_decode(key), unsafe_percent_decode(value)]);
     }
     return new Ok(List.fromArray(pairs));
   } catch (error) {
-- 
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