sort of convert encoding to typescript

1 files changed, 64 insertions, 0 deletions

diff --git a/webAO/encoding.ts b/webAO/encoding.ts
new file mode 100644
index 0000000..930886f
--- /dev/null
+++ b/webAO/encoding.ts
@@ -0,0 +1,64 @@
+/**
+ * Escapes a string to AO1 escape codes.
+ * @param {string} estring the string to be escaped
+ */
+export function escapeChat(estring: string) {
+  return estring
+    .replace(/#/g, '<num>')
+    .replace(/&/g, '<and>')
+    .replace(/%/g, '<percent>')
+    .replace(/\$/g, '<dollar>');
+}
+
+/**
+ * Unescapes a string to AO1 escape codes.
+ * @param {string} estring the string to be unescaped
+ */
+export function unescapeChat(estring: string) {
+  return estring
+    .replace(/<num>/g, '#')
+    .replace(/<and>/g, '&')
+    .replace(/<percent>/g, '%')
+    .replace(/<dollar>/g, '$');
+}
+
+/**
+ * Escapes a string to be HTML-safe.
+ *
+ * XXX: This is unnecessary if we use `createTextNode` instead!
+ * @param {string} unsafe an unsanitized string
+ */
+export function safeTags(unsafe: string) {
+  if (unsafe) {
+    return unsafe
+      .replace(/>/g, '&gt;')
+      .replace(/</g, '&lt;');
+  }
+  return '';
+}
+
+/**
+ * Encode text on client side.
+ * @param {string} estring the string to be encoded
+ */
+export function encodeChat(estring: string) {
+  return estring;
+}
+
+/**
+ * Decodes text on client side.
+ * @param {string} estring the string to be decoded
+ */
+export function decodeChat(estring: string) {
+    // Source: https://stackoverflow.com/questions/7885096/how-do-i-decode-a-string-with-escaped-unicode
+    return estring.replace(/\\u([\d\w]{1,})/gi, (match, group) => String.fromCharCode(parseInt(group, 16)));
+}
+
+/**
+ * XXX: a nasty hack made by gameboyprinter.
+ * @param {string} msg chat message to prepare for display
+ */
+export function prepChat(msg: string) {
+  // TODO: make this less awful
+  return unescapeChat(decodeChat(msg));
+}